Matti Lehtonen

at Aalto University School of Business

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  • Aalto University School of Business

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Links

Biography

Aalto University School of Business

Peer-reviewed scientific articles

Journal article-refereed, Original research

System-Level Value of a Gas Engine Power Plant in Electricity and Reserve Production

Alahaivala, Antti; Kiviluoma, Juha; Leino, Jyrki; Lehtonen, Matti
2017 in ENERGIES (MDPI AG)
ISSN: 1996-1073

A control framework for the utilization of heating load flexibility in a day-ahead market

Alahäivälä, Antti; Corbishley, James; Ekström, Jussi; Jokisalo, Juha; Lehtonen, Matti
2017 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

A framework for the assessment of electric heating load flexibility contribution to mitigate severe wind power ramp effects

Alahäivälä, Antti; Ekström, Jussi; Jokisalo, Juha; Lehtonen, Matti
2017 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Assessing the potential benefits and limits of electric storage heaters for wind curtailment mitigation A Finnish case study

Ali, Mubbashir; Ekström, Jussi; Lehtonen, Matti
2017 in SUSTAINABILITY (MDPI AG)
ISSN: 2071-1050

A Framework to Split the Benefits of DR between Wind Integration and Network Management

Ali, Mubbashir; Millar, Robert John; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Effect of cumulative moisture content on degradation of transformer paper insulation

Ariannik, Mohamadreza; Razi-Kazemi, Ali Asghar; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

Block-Layer Reliability Method for Distribution Systems under Various Operating Scenarios

de Oliveira e Sousa, Bruno; Humayun, Muhammad; Pihkala, Atte; Millar, Robert; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Stochastic Operation Framework for Distribution Networks Hosting High Wind Penetrations

Dorostkar-Ghamsari, M. R.; Fotuhi-Firuzabad, M.; Lehtonen, M.; Safdarian, A.; Hoshyarzadeh, A. S.
2017 in IEEE TRANSACTIONS ON SUSTAINABLE ENERGY (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1949-3029

A Statistical Model for Hourly Large-Scale Wind and Photovoltaic Generation in New Locations

Ekström, Jussi; Koivisto, Matti; Mellin, Ilkka; Millar, Robert; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON SUSTAINABLE ENERGY (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1949-3029

Impacts of natural disasters on swedish electric power policy A case study

Gündüz, Niyazi; Küfeoğlu, Sinan; Lehtonen, Matti
2017 in SUSTAINABILITY (MDPI AG)
ISSN: 2071-1050

Planning to Equip the Power Distribution Networks with Automation System

Heidari, Saeed; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Evaluation of Fault Levels and Power Supply Network Impedances in 230/400V 50Hz Generic Distribution Systems

Hernando-Gil, Ignacio; Shi, Heng; Li, Furong; Djokic, Sasa; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Statistical wind direction modeling for the analysis of large scale wind power generation

Koivisto, Matti; Ekström, Jussi; Mellin, Ilkka; Millar, Robert; Lehtonen, Matti
2017 in Wind Energy (JOHN WILEY & SONS LTD)
ISSN: 1095-4244

Mitigation of Lightning Flashover from Tree to Medium Voltage Aerial Cable Using Shield Wire

Omidiora, Michael; Lehtonen, Matti
2017 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Data driven analytical modeling of power transformers

Penttonen, Jyrki; Lehtonen, Matti
2017 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Optimal tuning for fast arc suppression coil

Penttonen, Jyrki; Lehtonen, M.
2017 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

A novel 4-limb earth fault compensation reactor for distribution network

Penttonen, Jyrki; Lehtonen, Matti; Muhammad, Shafiq
2017 in INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS (Wiley)
ISSN: 2050-7038

Computation of Peak Lightning-Induced Voltages Due to the Typical First and Subsequent Strokes Considering High Ground Resistivity

Rizk, Mohammad E. M.; Mahmood, Farhan; Lehtonen, Matti; Badran, Ebrahim A.; Abdel-Rahman, Mansour H.
2017 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

A study for improving the energy efficiency of lifts with adjustable counterweighting

Tukia, Toni; Uimonen, Semen; Siikonen, Marja-Liisa; Hakala, Harri; Lehtonen, Matti
2017 in BUILDING SERVICES ENGINEERING RESEARCH AND TECHNOLOGY (SAGE Publications Inc.)
ISSN: 0143-6244

Predicting the annual escalator energy consumption based on short-term measurements

Uimonen, Semen; Tukia, Toni; Siikonen, Marja Liisa; Lehtonen, Matti
2017 in Journal of Building Engineering (Elsevier BV)
ISSN: 2352-7102

Impact of daily passenger traffic on energy consumption of intermittent-operating escalators

Uimonen, Semen; Tukia, Toni; Siikonen, Marja Liisa; Lehtonen, Matti
2017 in Energy and Buildings (Elsevier Science)
ISSN: 0378-7788

Increasing the Benefit from Cost-Minimizing Loads via Centralized Adjustments

Alahäivälä, Antti; Lehtonen, Matti
2016 in ENERGIES (MDPI AG)
ISSN: 1996-1073

A User-centric Demand Response Framework for Residential Heating, Ventilation, and Air-conditioning Load Management

Ali, Mubbashir; Jokisalo, Juha; Siren, Kai; Safdarian, Amir; Lehtonen, Matti
2016 in ELECTRIC POWER COMPONENTS AND SYSTEMS (Taylor and Francis Ltd.)
ISSN: 1532-5008

Increased Utilization of Wind Generation by Coordinating the Demand Response and Real-time Thermal Rating

Ali, Mubbashir; Degefa, Merkebu; Humayun, Muhammad; Safdarian, Amir; Lehtonen, Matti
2016 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

A User-Centric Demand Response Framework for Residential HVAC Load Management

Ali, Mubbashir; Jokisalo, Juha; Siren, Kai; Safdarian, Amir; Lehtonen, Matti
2016 in ELECTRIC POWER COMPONENTS AND SYSTEMS (Taylor and Francis Ltd.)
ISSN: 1532-5008

MAS-Based Modeling of Active Distribution Network The Simulation of Emerging Behaviors

Degefa, Merkebu Z.; Alahäivälä, Antti; Kilkki, Olli; Humayun, Muhammad; Seilonen, Ilkka; Vyatkin, Valeriy; Lehtonen, Matti
2016 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

A conditional demand analysis based amr metered load disaggregation A case study

Degefa, Merkebu Z.; Tarrago, Oriol Semente; Lehtonen, Matti
2016 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Value of Distribution Network Reconfiguration in Presence of Renewable Energy Resources

Dorostkar-Ghamsari, Mohammad Reza; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti; Safdarian, Amir
2016 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Demand response control of a townhouse thermal storage by greedy variable neighborhood algorithm

Doroudchi, Elahe; Lehtonen, Matti; Kyyrä, Jorma
2016 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

A statistical approach for hourly photovoltaic power generation modeling with generation locations without measured data

Ekström, Jussi; Koivisto, Matti; Millar, John; Mellin, Ilkka; Lehtonen, Matti
2016 in SOLAR ENERGY (PERGAMON-ELSEVIER SCIENCE LTD)
ISSN: 0038-092X

Transient selectivity for enhancing autonomous fault management in unearthed distribution networks with DFIG-based distributed generations

Elkalashy, Nagy I.; Kawady, Tamer A.; Ashmawy, Mohamed G.; Lehtonen, Matti
2016 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Incorporating earth fault location in management-control scheme for distribution networks

Elsadd, Mahmoud A.; Elkalashy, Nagy I.; Kawady, Tamer A.; Taalab, Abdel Maksoud I; Lehtonen, Matti
2016 in IET GENERATION TRANSMISSION AND DISTRIBUTION (Institution of Engineering and Technology)
ISSN: 1751-8687

Optimal capacity planning of substation transformers by demand response combined with network automation

Humayun, Muhammad; Safdarian, Amir; Ali, Mubbashir; Degefa, Merkebu Z.; Lehtonen, Matti
2016 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Optimal Capacity Management of Substation Transformers Over Long-Run

Humayun, Muhammad; de Oliveira e Sousa, Bruno; Safdarian, Amir; Ali, Mubbashir; Degefa, Merkebu Z.; Lehtonen, Matti; Fotuhi-Firuzabad, Mahmud
2016 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

New preemptive arc-fault detection techniques in medium-voltage switchgear and motor controls

Kay, John A.; Hussain, G. Amjad; Lehtonen, Matti; Kumpulainen, Lauri
2016 in IEEE Transactions on Industry Applications (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0093-9994

Wind speed modeling using a vector autoregressive process with a time-dependent intercept term

Koivisto, Matti; Seppänen, Janne; Mellin, Ilkka; Ekström, Jussi; Millar, Robert; Mammarella, Ivan; Komppula, Mika; Lehtonen, Matti
2016 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Macroeconomic assessment of voltage sags

Küfeoğlu, Sinan; Lehtonen, Matti
2016 in SUSTAINABILITY (MDPI AG)
ISSN: 2071-1050

Influence of Highly Resistive Ground Parameters on Lightning-Induced Overvoltages Using 3-D FDTD Method

Rizk, Mohammad E M; Mahmood, Farhan; Lehtonen, Matti; Badran, Ebrahim A.; Abdel-Rahman, Mansour H.
2016 in IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 0018-9375

Investigation of Lightning Electromagnetic Fields on Underground Cables in Wind Farms

Rizk, Mohammad E M; Mahmood, Farhan; Lehtonen, Matti; Badran, Ebrahim A.; Abdel-Rahman, Mansour H.
2016 in IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 0018-9375

Induced Voltages on Overhead Line by Return Strokes to Grounded Wind Tower Considering Horizontally Stratified Ground

Rizk, Mohammad E M; Mahmood, Farhan; Lehtonen, Matti; Badran, Ebrahim A.; Abdel-Rahman, Mansour H.
2016 in IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 0018-9375

Optimal Residential Load Management in Smart Grids A Decentralized Framework

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2016 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

Benefits of Demand Response on Operation of Distribution Networks A Case Study

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2016 in IEEE SYSTEMS JOURNAL (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1932-8184

Domestic EWH and HVAC management in smart grids Potential benefits and realization

Safdarian, Amir; Ali, Mubbashir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2016 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Practices to improve the annual elevator energy consumption estimates and measurements

Tukia, Toni; Uimonen, Semen; Siikonen, Marja Liisa; Hakala, Harri; Donghi, Claudio; Lehtonen, Matti
2016 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Explicit method to predict annual elevator energy consumption in recurring passenger traffic conditions

Tukia, Toni; Uimonen, Semen; Siikonen, Marja Liisa; Hakala, Harri; Donghi, Claudio; Lehtonen, Matti
2016 in Journal of Building Engineering (Elsevier BV)
ISSN: 2352-7102

Energy consumption of escalators in low traffic environment

Uimonen, Semen; Tukia, Toni; Siikonen, Marja Liisa; Lange, Dirk; Donghi, Claudio; Cai, Xiao Liang; Nousu, Hannu; Hakala, Harri; Lehtonen, Matti
2016 in Energy and Buildings (Elsevier Science)
ISSN: 0378-7788

Analyzing the optimal coordination of a residential micro-CHP system with a power sink

Alahäivälä, Antti; Hess, Tobias; Cao, Sunliang; Lehtonen, Matti
2015 in APPLIED ENERGY (ELSEVIER SCI LTD)
ISSN: 0306-2619

An intra-hour control strategy for aggregated electric storage space heating load

Alahäivälä, Antti; Jokisalo, Juha; Siren, Kai; Safdarian, Amir; Lehtonen, Matti
2015 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

A market-oriented hierarchical framework for residential demand response

Ali, Mubbashir; Alahäivälä, Antti; Malik, Farhan; Humayun, Muhammad; Safdarian, Amir; Lehtonen, Matti
2015 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Risk-constrained framework for residential storage space heating load management

Ali, Mubbashir; Safdarian, Amir; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Optimal voltage control strategies for day-ahead active distribution network operation

Degefa, M. Z.; Lehtonen, M.; Millar, R. J.; Alahäivälä, A.; Saarijärvi, E.
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Sensitivity and viability analyses of overhead and underground meshed subtransmission networks

de Oliveira e Sousa, Bruno Jorge; Pihkala, Atte; Lehtonen, Matti
2015 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Optimal distributed static series compensator placement for enhancing power system loadability and reliability

Dorostkar-Ghamsari, Mohammadreza; Fotuhi-Firuzabad, Mahmud; Aminifar, Farrokh; Safdarian, Amir; Lehtonen, Matti
2015 in IET GENERATION TRANSMISSION AND DISTRIBUTION (Institution of Engineering and Technology)
ISSN: 1751-8687

Earth fault distance estimation using active traveling waves in energized compensated MV networks

Elkalashy, N.; Sabiha, N.; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Detection of partial saturation and waveform compensation of current transformers

Esmail, E.; Elkalashy, N.; Kawady, T.; Taalab, A.; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Stochastic genetic algorithm and its application as a demand control tool for houses with thermal energy storage systems

Gosalbez, Ignacio; Lehtonen, Matti
2015 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Preemptive Arc Fault Detection Techniques in Switchgear - Part III From the Laboratory to Practical Installation

Hussain, G. Amjad; Shafiq, Muhammad; Kay, John A.; Lehtonen, Matti
2015 in IEEE Transactions on Industry Applications (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0093-9994

Pre-Emptive Arc Fault Detection Techniques in Switchgear- Part III, From the Laboratory to Practical Installation

Hussain, Ghulam Amjad; Shafiq, Muhammad; Kay, John A.; Lehtonen, Matti
2015 in IEEE Transactions on Industry Applications (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0093-9994

Online Condition Monitoring of MV Switchgear using D-dot Sensor to Predict Arc-Faults

Hussain, Ghulam Amjad; Shafiq, Muhammad; Lehtonen, Matti; Hashmi, Murtaza
2015 in IEEE SENSORS JOURNAL (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1530-437X

Performance evaluation of noise reduction method during on-line monitoring of MV switchgear for PD measurements by non-intrusive sensors

Hussain, Ghulam Amjad; Shafiq, Muhammad; Kumpulainen, Lauri; Mahmood, Farhan; Lehtonen, Matti
2015 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Statistical Modeling of Aggregated Electricity Consumption and Distributed Wind Generation in Distribution Systems Using AMR Data

Koivisto, Matti; Degefa, Merkebu; Ali, Mubbashir; Ekström, Jussi; Millar, John; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Interruption costs of service sector electricity customers, a hybrid approach

Kufeoglu, Sinan; Lehtonen, Matti
2015 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Comparison of different models for estimating the residential sector customer interruption costs

Küfeoglu, Sinan; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Modeling of flashover arcs in medium voltage networks due to direct lightning strikes

Mahmood, Farhan; Elkalashy, Nagy I.; Lehtonen, Matti
2015 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Probabilistic Risk Assessment of MV Insulator Flashover Under Combined AC and Lightning-Induced Overvoltages

Mahmood, Farhan; Sabiha, Nehmdoh A; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Flashover Probability Distribution and Volt-Time Curves of Medium Voltage Overhead Line Insulation under Combined AC and Lightning Impulse Voltages

Mahmood, Farhan; Rizk, Mohammad; Lehtonen, Matti
2015 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Evaluation of Lightning Overvoltage Protection Schemes for Pole-Mounted Distribution Transformers

Mahmood, Farhan; Rizk, Mohammad; Lehtonen, Matti
2015 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Comparison of Electric Vehicles Charging Strategies and their Impact on Network Capacity

Malik, Farhan H.; Lehtonen, Matti
2015 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Heat Gains, Heating and Cooling in Nordic Housing with Electrical Space Heating

Molina, Cristina; Degefa, Merkebu; Lehtonen, Matti
2015 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Home load management in a residential energy hub

Rastegar, Mohammad; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Data Mining of Online Diagnosed Waveforms for Probabilistic Condition Assessment of SF6 Circuit Breakers

Razi-Kazemi, Ali Asghar; Vakilian, Mehdi; Niayesh, Kaveh; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Optimal Electricity Procurement in Smart Grids with Autonomous Distributed Energy Resources

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti; Aminifar, Farrokh
2015 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

Benefits of real-time monitoring to distribution systems: Dynamic thermal rating

Safdarian, Amir; Degefa, Merkebu; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

A medium-term decision model for disCos: Forward contracting and TOU pricing

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Electromagnetic Sensing for Predictive Diagnostics of Electrical Insulation Defects in MV Power Lines

Shafiq, Muhammad; Hussain, Ghulam Amjad; Kütt, Lauri; Lehtonen, Matti
2015 in MEASUREMENT (Elsevier)
ISSN: 0263-2241

Partial Discharge Diagnostic System for Smart Distribution Networks Using Directionally Calibrated Induction Sensors

Shafiq, Muhammad; Hussain, Ghulam A.; Kütt, Lauri; Elkalashy, Nagy I.; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Integration of Online Proactive Diagnostic Scheme for Partial Discharge in Distribution Networks

Shafiq, Muhammad; Hussain, G. Amjad; Elkalashy, Nagy I.; Hyvönen, Petri; Lehtonen, Matti
2015 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

Improving reliability in an urban network

Siirto, Osmo; Hyvärinen, Markku; Loukkalahti, Mika; Hämäläinen, Aki; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Optimal Distribution Network Automation Considering Earth Fault Events

Siirto, Osmo K.; Safdarian, Amir; Lehtonen, Matti; Fotuhi-Firuzabad, Mahmud
2015 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

Autonomous control strategy for fault management in distribution networks

Tarhuni, Naser; Elkalashy, Nagy; Kawady, Tamer; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Earth fault location based on evaluation of voltage sag at secondary side of medium voltage/low voltage transformers

Topolanek, Davtd; Lehtonen, Matti; Adzman, Rafi; Toman, Petr
2015 in IET GENERATION TRANSMISSION AND DISTRIBUTION (Institution of Engineering and Technology)
ISSN: 1751-8687

A new correlation-based earth fault indication algorithm using only transient current measurements

Abdel-Fattah, Mohamed; Lehtonen, Matti; Xu, B.
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Combining the Demand Response of direct electric space heating and partial thermal storage using LP optimization

Ali, Mubbashir; Jokisalo, Juha; Siren, Kai; Lehtonen, Matti
2014 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Cross-correlation method for power arcing source monitoring system

Ble, Frank; Lehtonen, Matti; Sihvola, Ari; Kim, Charles
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Power arcing source location using first peak arrival of rf-signal

Ble, Frank Zoko; Lehtonen, Matti; Sihvola, Ari; Kim, Charles
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Arcing faults localization using RF-signal angle of arrival method

Ble, Frank Zoko; Lehtonen, Matti; Kim, Charles
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Unlocking distribution network capacity through real-time thermal rating for high penetration of DGs

Degefa, Merkebu; Humayun, Muhammad; Safdarian, Amir; Koivisto, Matti; Millar, John; Lehtonen, Matti
2014 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Inclusion of voltage sag cost to underground and overhead subtransmission network planning

de Oliveira e Sousa, Bruno; Humayun, Muhammad; Lehtonen, Matti
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Decentralized earth fault selectivity using transient front slopes for unearthed MV networks

Elkalashy, Nagy; Lehtonen, Matti
2014 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Detection and Localization of Arcing Faults Electromagnetic Radiated Signals Using Antennas and Wavelet Analysis

Frank, Zoko B.; Hussain, G.Amjad; Lehtonen, Matti; Kim, Charles
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Demand response for operational life extension and efficient capacity utilization of power transformers during contingencies

Humayun, Muhammad; Safdarian, Amir; Degefa, Merkebu Zenebe; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Utilization improvement of transformers using demand response

Humayun, Muhammad; Degefa, Merkebu Zenebe; Safdarian, Amir; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Pre-Emptive Arc Fault Detection Techniques in Switchgear and Controlgear - Part II

Hussain, G.Amjad; Kumpulainen, Lauri; Lehtonen, Matti; Kay, John A.
2014 in IEEE Transactions on Industry Applications (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0093-9994

Preemptive Arc-Fault Detection Techniques in Switchgear and Controlgear-Part II

Hussain, G. Amjad; Kumpulainen, Lauri; Lehtonen, Matti; Kay, John A.
2014 in IEEE Transactions on Industry Applications (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0093-9994

Criticality Analysis of Failure to Communicate in Automated Fault-Management Schemes

Kazemi, Shahram; Millar, Robert J.; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

A summary of the recent extreme weather events and their impacts on electricity

Kufeoglu, Sinan; Prittinen, Samuel; Lehtonen, Matti
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Aspects of Arc-Flash Protection and Prediction

Kumpulainen, Lauri; Hussain, G.Amjad; Lehtonen, Matti; Kauhaniemi, Kimmo
2014 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Capacity Requirements of Electric Vehicles Charging Infrastructure with the Evolution of their Market

Malik, Farhan; Lehtonen, Matti
2014 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

A feasibility study of fast charging infrastructure for EVs on highways

Malik, Farhan; Lehtonen, Matti; Saarijärvi, Eero; Safdarian, Amir
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Collaborative Demand Response Optimization of Electric Vehicles and Storage Space Heating for Residential Peak Shaving

Malik, Farhan H.; Ali, Mubbashir; Lehtonen, Matti
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Intelligent Agent Based Architecture for Demand Side Management Considering Space Heating and Electric Vehicle Load

Malik, Farhan; Ali, Mubbashir; Lehtonen, Matti
2014 in ENGINEERING (PRAISE WORTHY PRIZE SRL)
ISSN: 1947-3931

An improved initial network for distribution network planning algorithms

Millar, John; Saarijärvi, Eero; Lehtonen, Matti
2014 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Circuit-breaker automated failure tracking based on coil current signature

Razikazemi, Aliasghar; Vakilian, Mehdi; Niyaesh, K.; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Integration of price-based demand response in DisCos' short-term decision model

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

Impacts of Time-Varying Electricity Rates on Forward Contract Scheduling of DisCos

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

A distributed algorithm for managing residential demand response in smart grids

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti
2014 in IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS (IEEE Computer Society)
ISSN: 1551-3203

A new formulation for power system reliability assessment with AC constraints

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Aminifar, Farrokh; Lehtonen, Matti
2014 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Distribution network reliability improvements in presence of demand response

Safdarian, Amir; Degefa, Merkebu Z.; Lehtonen, Matti; Fotuhi-Firuzabad, Mahmud
2014 in IET GENERATION TRANSMISSION AND DISTRIBUTION (Institution of Engineering and Technology)
ISSN: 1751-8687

Customer Interruption Cost in Smart Grids

Safdarian, Amir; Lehtonen, Matti; Fotuhi-Firuzabad, Mahmud; Billinton, Roy
2014 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Effect of geometrical parameters on high frequency performance of Rogowski coil for partial discharge measurements

Shafiq, Muhammad; Hussain, G.Amjad; Kutt, Lauri; Lehtonen, Matti
2014 in MEASUREMENT (Elsevier)
ISSN: 0263-2241

Design, Implementation and Simulation of Non-Intrusive Sensor for On-line Condition Monitoring of MV Electrical Components

Shafiq, Muhammad; Kütt, Lauri; Isa, Muzamir; Lehtonen, Matti
2014 in ENGINEERING (Elsevier)
ISSN: 1947-3931

Three-layer seasonal reliability analysis in meshed overhead and underground subtransmission networks in the presense of co-generation

Sousa, Bruno J. O.; Humayun, Muhammad; Pihkala, Atte; Lehtonen, Matti
2014 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

The high-temperature effect on the breakdown voltage of an air-gap at atmospheric pressure with reference to paschen curve

Abdel-Fattah, Mohamed; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

An earth fault location scheme for isolated and compensated neutral distribution systems

Adzman, Rafi; Topolanek, David; Lehtonen, Matti; Toman, Petr
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Modeling electric vehicle charging flexibility for the maintaining of power balance

Alahäivälä, Antti; Saarijärvi, Eero; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Comparison of Electric Vehicle Charging Control Strategies for the Power System Primary Control

Alahäivälä, A.; Nikkilä, R.; Lehtonen, M.
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Optimizing the DR Control of Electric Storage Space Heating Using LP Approach

Ali, Mubbashir; Koivisto, Matti; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Stochastic Characteristics of Load Profiling in Distribution Systems based on AMR measurements

Degefa, Merkebu; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Dynamic Thermal Modeling of MV/LV Prefabricated Substations

Degefa, Merkebu Zenebe; Millar, R.John; Lehtonen, Matti; Hyvonen, Petri
2013 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Load Flow Analysis Framework for Active Distribution Networks Based on Smart Meter Reading System

Degefa, Merkebu Zenebe; Millar, Robert John; Koivisto, Matti; Humayun, Muhammad; Lehtonen, Matti
2013 in ENGINEERING (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1947-3931

Markov model based assessment for redundancy mitigation in high voltage grids using demand response

Humayun, Muhammad; de Oliveira e Sousa, Bruno Jorge; Degefa, Merkebu Z.; Kazemi, Shahram; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

The Smart Solution for the Prediction of Slowly Developing Electrical Faults in MV Switchgear Using Partial Discharge Measurements

Hussain, Ghulam Amjad; Kumpulainen, Lauri; Klüss, Joni V.; Kay, John A.; Lehtonen, Matti
2013 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Impact of smart subtransmission level fault current mitigation solutions on service reliability

Kazemi, Shahram; Lehtonen, Matti
2013 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Customer Interruption Costs Estimations for Service Sectors via Customer Survey Method: A Case Study

Kufeoglu, Sinan; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

A Novel Hybrid Approach to Estimate Customer Interruption Costs for Industry Sectors

Kufeoglu, Sinan; Lehtonen, Matti
2013 in ENGINEERING (PRAISE WORTHY PRIZE SRL)
ISSN: 1947-3931

Pre-Emptive Arc Fault Detection Techniques in Switchgear and Controlgear

Kumpulainen, Lauri; Hussain, Ghulam Amjad; Lehtonen, Matti; Kay, John A.
2013 in IEEE Transactions on Industry Applications (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0093-9994

Electricity Distribution Network Planning Algorithm Based on Efficient Initial and Radial-to-Full Network Conversion

Millar, R.John; Saarijärvi, Eero; Lehtonen, Matti; Hyvärinen, Markku; Niskanen, Jussi; Hämäläinen, Pekka
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Prioroty assessment of online monitoring investment for power system circuit breakers - part II: Determination of optimum number.

Razi-Kazemi, A.A.; Vakilian, M.; Niayesh, K.; Lehtonen, M.
2013 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Priority assessment of online monitoring investment for power system circuit breakers - part I: Qualitative-quantitative approach

Razi-Kazemi, A.A.; Vakilian, M.; Niayesh, K.; Lehtonen, M.
2013 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Distribution Network Topology Planning Using Life Cycle Cost driven Cost Surfaces in the Internodal Parameter Computation

Saarijärvi, Eero; Millar, John; Niskanen, Jussi; Nieminen, Tatu; Lehtonen, Matti
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

A stochastic framework for short-term operation of a distribution company

Safdarian, A.; Fotuhi-Firuzabad, M.; Lehtonen, M.
2013 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Effect of Terminating Resistance on High Frequency Behaviour of Rogowski Coil for Transient Measurements

Shafiq, M.; Lehtonen, M.; Kutt, L.; Hussain, G.A.; Hashmi, M.
2013 in ELEKTRONIKA IR ELEKTROTECHNIKA (Kauno Technologijos Universitetas)
ISSN: 1392-1215

Parameters Identification and Modeling of High Frequency Current Transducer for Partial Discharge Measurements

Shafiq, Muhammad; Kütt, Lauri; Lehtonen, Matti; Nieminen, Tatu; Hashmi, Murtaza
2013 in IEEE SENSORS JOURNAL (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1530-437X

Optimization of distribution automation in urban networks

Siirto, O.; Hakala, S.; Hyvärinen, M.; Heine, P.; Lehtonen, M.
2013 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

A novel transient current-based differential algorithm for earth fault detection in medium voltage distribution networks

Abdel-Fattah, Mohamed; Lehtonen, Matti
2012 in JOURNAL OF ENERGY AND POWER ENGINEERING (PRAISE WORTHY PRIZE SRL)
ISSN: 1934-8975

Transient algorithm based on earth capacitance estimation for earth-fault detection in medium-voltage networks

Abdel-Fattah, Mohamed; Lehtonen, Matti
2012 in IET GENERATION TRANSMISSION AND DISTRIBUTION (Institution of Engineering and Technology)
ISSN: 1751-8687

A new transient impedance-based algorithm for earth fault detection in medium voltage networks

Abdel-Fattah, Mohamed; Lehtonen, Matti
2012 in JOURNAL OF ENERGY AND POWER ENGINEERING (Institution of Engineering and Technology)
ISSN: 1934-8975

Estimation of Single Line to Ground Fault Location in Unearthed Medium Voltage Distribution Network

Adzman, Mohd Rafi; Lehtonen, Matti
2012 in ENERGYSPECTRUM (Institution of Engineering and Technology)

A method for ground fault distance computation in unearthed medium voltage distribution network

Adzman, Mohd Rafi; Lehtonen, Matti
2012 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Comparison of Air-Gap Thermal Models for MV Power Cables Inside Unfilled Conduit

Degefa, Merkebu Z.; Lehtonen, Matti; Millar, Robert J.
2012 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Wavelet-based de-noising of on-line PD signals captured by Pearson coil in covered-conductor overhead distribution networks

Hashmi, M.; Lehtonen, Matti; Nordman, M.; Jabbar, R.A.; Qureshi, S.A.
2012 in INTERNATIONAL JOURNAL OF ELECTRICAL POWER AND ENERGY SYSTEMS (Elsevier Limited)
ISSN: 0142-0615

Signal processing of on-line PDs captured by Rogowski coil for enhanced fault detection in smart distribution networks

Hashmi, M.; Lehtonen, Matti; Nordman, M.; Hänninen, S.
2012 in International Review of Electrical Engineering (Elsevier Limited)
ISSN: 1829-6660

Modelling and analysis of lightning overvoltage protection of MV cable laterals connected with overhead lines

Hashmi, Ghulam; Lehtonen, Matti; Hänninen, Seppo
2012 in ELEKTRONIKA IR ELEKTROTECHNIKA (Kauno Technologijos Universitetas)
ISSN: 1392-1215

Rogowski Coil Evaluation Performance with Different Fault Conditions in Medium Voltage Distribution Networks

Isa, Muzamir; Elkalashy, Nagy I.; Hashmi, Ghulam M.; Lehtonen, Matti
2012 in INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING AND TECHNOLOGY (Kauno Technologijos Universitetas)
ISSN: 0976-6553

Correlation evaluation of unsynchronized multi-end windows for locating partial discharge sourcves in covered-conductor overhead lines

Isa, Muzamir; Elkalashy, Nagy; Hashmi, Ghulam; Shafiq, Muhammad; Lehtonen, Matti
2012 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Multi-end Correlation-based PD Location Technique for Medium Voltage Covered-conductor Lines

Isa, Muzamir; Elkalashy, Nagy I.; Lehtonen, Matti; Hashmi, Ghulam M.; Elmusrati, Mohammed S.
2012 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

Impacts of fault diagnosis schemes on distribution system reliability

Kazemi, Shahram; Lehtonen, Matti; Fotuhi-Firuzabad, Mahmud
2012 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

Clustering of Connection Points and Load Modeling in Distribution Systems

Koivisto, Matti; Heine, Pirjo; Mellin, Ilkka; Lehtonen, Matti
2012 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

Impact of MV Connected Microgrids on MV Distribution Planning

Millar, Robert J.; Kazemi, Shahram; Lehtonen, Matti; Saarijärvi, Eero
2012 in IEEE TRANSACTIONS ON SMART GRIDS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1949-3053

Three measuring points for partial discharge location in energized covered-conductor overhead distribution lines

Muzamir, Isa; Elkalashy, Nagy; Shafiq, Muhammad; Lehtonen, Matti
2012 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Modelling and evaluation of the lightning arc between a power line and a nearby tree

Omidiora, Michael; Elkalashy, Nagy; Lehtonen, Matti; Abdel-Rahman, Mansour
2012 in EUROPEAN TRANSACTIONS ON ELECTRICAL POWER (John Wiley and Sons Ltd)
ISSN: 1430-144X

Performance analysis and protection of air distribution cables from lightning faults

Omidiora, Michael; Lehtonen, Matti; Hyvönen, Petri
2012 in INTERNATIONAL REVIEW ON MODELLING AND SIMULATIONS (Praise Worthy Prize)
ISSN: 1974-9821

Directional Calibration of Rogowski Coil for Localization of Partial Discharges in Smart Distribution Networks

Shafiq, Muhammad; Isa, Muzamir; Hashmi, Murtaza; Lehtonen, Matti
2012 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Effect of climate change on MV underground network operations in the future smart grid environment

Hashmi, Ghulam; Millar, John; Lehtonen, Matti; Hänninen, Seppo
2011 in ELEKTRONIKA IR ELEKTROTECHNIKA (Kauno Technologijos Universitetas)
ISSN: 1392-1215

Calibration of on-line partial discharge measuring system using Rogowski coil in covered-conductor overhead distribution networks

Hashmi, Ghulam M.; Lehtonen, Matti; Nordman, M.
2011 in IET SCIENCE MEASUREMENT AND TECHNOLOGY (Institution of Engineering and Technology)
ISSN: 1751-8822

Determining wave propagation characteristics of MV XLPE power cable using time domain reflectometry technique

Hashmi, Ghulam Murtaza; Papazyan, Ruslan; Lehtonen, Matti
2011 in TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES (Turkiye Klinikleri)
ISSN: 1300-0632

Modelling and analysis of switching overvoltages caused by short circuits in MV cables connected with overhead lines

Hashmi, Ghulam; Lehtonen, Matti; Hänninen, Seppo
2011 in ELEKTRONIKA IR ELEKTROTECHNIKA (Kauno Technologijos Universitetas)
ISSN: 1392-1215

Investigation of lightning arc between conductor and nearby tree under artificiaql rainfall

Omidiora, Michael; Elkalashy, Nagy; Lehtonen, Matti; Hyvönen, Petri; Abdel-Rahman, Mansour
2011 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

Bayesian Selectivity Technique for Earth Fault Protection in Medium-Voltage Networks

Elkalashy, N.I.; Elhaffar, A.M.; Kawady, T.A.; Tarhuni, N.G.; Lehtonen, Matti
2010 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Modeling and Experimental Verification of Covered-Conductor for PD Detection in Overhead Distribution Networks

Hashmi, Murtaza; Lehtonen, Matti; Ametani, Akihiro
2010 in DENKI GAKKAI RONBUNSHI. B: DENRYOKU ENERUGI BUMONSHI (The Institute of Electrical Engineers of Japan)
ISSN: 0385-4213

Modeling and Experimental Verification of On-line PD Detection in MV Covered-conductor Overhead Networks

Hashmi, Ghulam Murtaza; Lehtonen, Matti; Nordman, Mikael
2010 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

Protection of Lightning Disturbances on MV Underground Cable

Omidiora, Michael A.; Lehtonen, Matti
2010 in INTERNATIONAL REVIEW OF ELECTRICAL ENGINEERING: IREE (PRAISE WORTHY PRIZE SRL)
ISSN: 1827-6660

Lightning Performance of MV Underground Cables with Shield Wire

Omidiora, Michael A.; Lehtonen, Matti
2010 in PRZEGLAD ELEKTROTECHNICZNY (Wydawnictwo SIGMA - N O T Sp. z o.o.)
ISSN: 0033-2097

Heavy loading conditions studies by optimal UPFC on a real Finnish 110 KV network to solve technical problems of 2020

Othman, Ahmed M.; Lehtonen, Matti; El-Arini, Mahdi
2010 in PRZEGLAD ELEKTROTECHNICZNY (Wydawnictwo SIGMA - N O T Sp. z o.o.)
ISSN: 0033-2097

Lightning-Induced Overvoltages Transmitted Over Distribution Transformer With MV Spark-Gap Operation. —Part I: High-Frequency Transformer Model

Sabiha, Nehmdoh A.; Lehtonen, Matti
2010 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Lightning-Induced Overvoltages Transmitted Over Distribution Transformer With MV Spark-Gap Operation. —Part II: Mitigation Using LV Surge Arrester

Sabiha, Nehmdoh; Lehtonen, Matti
2010 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Simplified probabilistic selectivity technique for earth fault detection in unearthed MV networks

Elkalashy, Nagy I.; Tarhuni, Naser G.; Lehtonen, Matti
2009 in IET Generation, Transmissiona and Distribution (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)

Effects of Rogowski Coil and Covered-Conductor Parameters on the Performance of PD Measurements in Overhead Distribution Networks

Hashmi, G.Murtaza; Lehtonen, Matti
2009 in International Journal of Innovations in Energy Systems and Power (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 1913-133X

Probabilistic model for MV spark-gap characteristics with lightning induced overvoltage superimposed on AC voltage

Sabiha, Nehmdoh A.; Lehtonen, Matti; Hyvönen, Petri; Tarhuni, Naser G.
2009 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

A novel selectivity technique for high impedance arcing fault detection in compensated MV networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2008 in EUROPEAN TRANSACTIONS ON ELECTRICAL POWER (John Wiley and Sons Ltd)
ISSN: 1430-144X

DWT-based detection and transient power direction-based location of high-impedance faults due to leaning trees in unearthed MV networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2008 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Modeling and experimental verification of high impedance arcing fault in medium voltage networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Izzularab, Mohamed A.; Taalab, Abdel-Maksoud I.
2007 in IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (Institute of Electrical and Electronics Engineers Inc.)
ISSN: 1070-9878

DWT-Based Extraction of Residual Currents throughout Unearthed MV Networks for Detecting High Impedance Faults due to leaning Trees

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2007 in EUROPEAN TRANSACTIONS ON ELECTRICAL POWER (John Wiley and Sons Ltd)

Recognition of morphologically complex words in Finnish: evidence from event-related potentials

Lehtonen, M.; Cunillera, T.; Rodriguez-Fornells, A.; Hulten, A.; Tuomainen, J.; Laine, M.
2007 in BRAIN RESEARCH (Elsevier)

A robust framework for cable rating and temperature monitoring

Millar, R.John; Lehtonen, Matti
2006 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Distributed Agent Based State Estimation for Electrical Distribution Networks

Nordman, Mikael; Lehtonen, Matti
2005 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8950

An Agent Concept for Managing Electrical Distribution Networks

Nordman, Mikael; Lehtonen, Matti
2005 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Dynamic thermal modelling of power transformers

Susa, Dejan; Lehtonen, Matti; Nordman, Hasse
2005 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)

Temperature Rises in an OFAF Transformer at OFAN Cooling Mode in Service

Susa, Dejan; Palola, Jussi; Lehtonen, Matti; Hyvarinen, Markku
2005 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)
ISSN: 0885-8977

Enhanced bandwidth of supercontinuum generated in microstructured fibers

Genty, G.; Lehtonen, M.; Ludvigsen, Hanne; Kaivola, M.
2004 in Optics Express (OPTICAL SOC AMER)

Voltage Sag Distributions Caused by Power System Faults

Heine, Pirjo; Lehtonen, Matti
2003 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)

A Method for Estimating the Frequency and Cost of Voltage Sags

Heine, Pirjo; Pohjanheimo, Pasi; Lehtonen, Matti; Lakervi, Erkki
2002 in IEEE TRANSACTIONS ON POWER SYSTEMS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)

A Probabilistic Method for Detection and Location of Very High Resistive Earth Faults

Hänninen, S.; Lehtonen, M.; Pulkkinen, U.
2000 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)

Review article, Literature review, Systematic review

A review: Agents in smart grids

Malik, Farhan H; Lehtonen, Matti
2016 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Effect of combined AC and lightning-induced overvoltages on the risk of MV insulator flashovers above lossy ground

Mahmood, Farhan; Sabihab, Nehmdoh A.; Lehtonen, Matti
2015 in ELECTRIC POWER SYSTEMS RESEARCH (Elsevier Science)
ISSN: 0378-7796

Book section, Chapters in research books

An approach to the lightning overvoltage protection of medium voltage lines in severe lightning areas

Omidiora, Michael Adebayo; Lehtonen, Matti
2008
ISBN: 978-0-7354-0526-4
ISSN: 0094-243X

Conference proceedings

Sizing of a photo voltaic-storage system for power system frequency support

Alahäivälä, Antti; Lehtonen, Matti
2017 in International Conference on the European Energy Market (IEEE Computer Society)
ISBN: 9781509054992
ISSN: 2165-4077

Assessing the upward demand response potential for mitigating the wind generation curtailment A case study

Ali, Mubbashir; Ekstrom, Jussi; Alahäivälä, Antti; Lehtonen, Matti
2017 in International Conference on the European Energy Market (IEEE Computer Society)
ISBN: 9781509054992
ISSN: 2165-4077

Real-time matching of local generation and demand The use of high resolution load modeling

Degefa, Merkebu Z.; Lehtonen, Matti; McCulloch, Malcolm; Nixon, Ken
2017 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE COMPUTER SOCIETY PRESS)
ISBN: 9781509033584
ISSN: 2165-4816

A distributed ICT architecture for continuous frequency control

Giovanelli, Christian; Kilkki, Olli; Alahäivälä, Antti; Seilonen, Ilkka; Lehtonen, Matti; Vyatkin, Valeriy
2017
ISBN: 9789897582417

Climate change concerns and finnish electric power supply security performance

Küfeoǧlu, Sinan; Gündüz, Niyazi; Lehtonen, Matti
2017 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE COMPUTER SOCIETY PRESS)
ISBN: 9781509033584
ISSN: 2165-4816

Analysis of partial discharge signals in medium voltage XLPE cables

Ahmed, Zeeshan; Hussain, Ghulam Amjad; Lehtonen, Matti; Varacka, Lukas; Kudelcik, Jozef
2016
ISBN: 978-1-5090-0909-1

Coordination strategies for distributed resources as frequency containment reserves

Alahäivälä, Antti; Lehtonen, Matti
2016
ISBN: 978-1-5090-1238-1

Optimal DR through HVAC loads in distribution systems hosting large wind generation

Ali, Mubbashir; Humayun, Muhammad; Degefa, Merkebu; Lehtonen, Matti; Safdarain, Amir
2016
ISBN: 978-1-5090-1238-1

A framework for activating residential HVAC demand response for wind generation balancing

Ali, Mubbashir; Humayun, Muhammad; Degefa, Merkebu; Alahäivälä, Antti; Lehtonen, Matti; Safdarian, Amir
2016
ISBN: 978-1-5090-1238-1
ISSN: 2378-8542

Multi-agent system based distributed voltage control in medium voltage distribution systems

Arshad, Ammar; Lehtonen, Matti
2016
ISBN: 978-1-5090-0909-1

Survey of harmonic emission of electrical vehicle chargers in the European market

Collin, A.J.; Xu, Xiao; Djokic, S.Z.; Möller, F.; Meyer, J.; Kutt, Lauri; Lehtonen, Matti
2016
ISBN: 9781509020676

A high resolution model of residential internal heat gain - The subtle interdependencies among residential end uses

Degefa, Merkebu Z.; Lehtonen, Matti; Nixon, Ken; McCulloch, Malcolm
2016
ISBN: 978-1-5090-1238-1
ISSN: 2378-8542

Improve capacity utilization of substation transformers via distribution network reconfiguraion and load transfer

Dorostkar-Ghamsari, Mohammad Rreza; Fotuhi-Firuzabad, Mahmud; Safdarian, Amir; Hoshyarzade, Amir Saman; Lehtonen, Matti
2016
ISBN: 9781509023196

Battery energy storage effect on AC/DC microgrids efficiency

Doroudchi, Elahe; Kyyrä, Jorma; Lehtonen, Matti
2016 in European Conference on Power Electronics and Applications (Institute of Electrical and Electronics Engineers Inc.)
ISBN: 9789075815245
ISSN: 2325-0313

Predicting arc faults in distribution switchgears

Hussain, G. A.; Shafiq, M.; Lehtonen, M.
2016
ISBN: 978-1-5090-0909-1

Thermal monitoring of low voltage switchgear using thermal ionization detector

Hussain, Amjad; Shafiq, Muhammad; Lehtonen, Matti
2016
ISBN: 9781509037315

A comparison of direct worth and relative worth studies for outage cost estimations in industry sectors

Kufeoglu, Sinan; Lehtonen, Matti
2016
ISBN: 978-1-5090-1238-1
ISSN: 2378-8542

A review on the theory of electric power reliability worth and customer interruption costs assessment techniques

Kufeoglu, Sinan; Lehtonen, Matti
2016 in International Conference on the European Energy Market (IEEE Computer Society)
ISBN: 9781509012978
ISSN: 2165-4077

Measurement of power system phase differences by means of GPS timing

Kusic, George L.; McGahey, William E.; Lehtonen, Matti
2016
ISBN: 9781509015627

Analysis of power network loading due to fast charging of Electric Vehicles on highways

Malik, Farhan H.; Lehtonen, Matti
2016
ISBN: 9781509015627

Agent based bidding architecture in electricity markets for EVs as V2G and G2V

Malik, Farhan H.; Lehtonen, Matti
2016
ISBN: 978-1-5090-0909-1

Optimized residential load scheduling under user defined constraints in a real-time tariff paradigm

Safdar, Madia; Ahmad, Mashhood; Hussain, Amjad; Lehtonen, Matti
2016
ISBN: 978-1-5090-0909-1

Evaluating and improving the energy efficiency of counterbalanced elevators based on passenger traffic

Tukia, Toni; Uimonen, Semen; Lehtonen, Matti; Siikonen, Marja Liisa; Donghi, Claudio
2016
ISBN: 9781509023196

Modelling the daily energy consumption of escalators with various passenger volumes

Uimonen, Semen; Tukia, Toni; Lehtonen, Matti; Siikonen, Marja Liisa
2016
ISBN: 9781509023196

Influence of voltage sags and outage costs on realistic radial and backed-up 20-kV rural and urban networks

de Oliveira e Sousa, Bruno Jorge; Millar, Robert John; Lehtonen, Matti
2015
ISBN: 978-1-4799-7498-6
ISSN: 2153-0033

Layered reliability assessment of a typical Finnish medium voltage network under multiple weather and load scenarios

de Oliveira e Sousa, Bruno Jorge; Millar, Robert John; Pihkala, Atte; Lehtonen, Matti
2015
ISSN: 2032-9644

Optimizing energy cost via battery sizing in residential PV/battery systems

Doroudchi, Elahe; Pal, Sudip Kumar; Lehtonen, Matti; Kyyrä, Jorma
2015
ISBN: 9781509012374

New pre-emptive arc fault detection techniques in medium voltage switchgear and motor controls

Kay, John A.; Hussain, Ghulam Amjad; Lehtonen, Matti; Kumpulainen, Lauri
2015
ISSN: 0190-2172

Customer interruption costs calculation of Finnish electricity customers

Küfeoglu, Sinan; Prittinen, Samuel; Lehtonen, Matti
2015
ISSN: 0018-9219

Automotive waste heat harvesting for electricity generation using thermoelectric systems an overview

Kütt, Lauri; Lehtonen, Matti
2015
ISBN: 978-1-4673-7203-9

Optimization of Concentrated Solar Thermoelectric Generator System for Highest Yearly Electric Output

Kütt, Lauri; Millar, John; Lehtonen, Matti; Märss, Maido
2015
ISBN: 978-1-5090-0334-1

Experimental Investigation of Lightning Initiated Flashover Faults in MV Lines

Mahmood, Farhan; Lehtonen, Matti
2015 in International Conference on High Voltage Engineering and Application (IEEE DEIS)
ISBN: 978-1-4799-6613-4
ISSN: 2381-5043

Impact of Primary Substation and HV Faults on Suburban MV Network Topology and Total Costs

Millar, Robert John; de Oliveira e Sousa, Bruno Jorge; Lehtonen, Matti; Pihkala, Atte; Saarijärvi, Eero
2015
ISBN: 978-1-4673-7203-9

A virtual power plant for the aggregation of domestic heating load flexibility

Alahäivälä, Antti; Kilkki, Olli; Degefa, Merkebu; Seilonen, Ilkka; Lehtonen, Matti
2014

Demand Response Potential of Residential HVAC loads Consdiering Users Preferences

Ali, Mubbashir; Safdarian, Amir; Lehtonen, Matti
2014 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE)
ISBN: 978-1-4799-7720-8
ISSN: 2165-4816

Dynamic Thermal State Forecasting of Distribution Network Components

Degefa, Merkebu; Koivisto, Matti; Millar, John; Lehtonen, Matti
2014
ISBN: 978-1-4799-3561-1

Photovoltaic Power Generation Hourly Modeling

Hellman, Hannu-Pekka; Koivisto, Matti; Lehtonen, Matti
2014

Pre-emptive Arc Fault Detection Techniques in Switchgear- Part III, From the Laboratory to Practical Installation

Hussain, G.Amjad; Shafiq, Muhammad; Kay, John A.; Lehtonen, Matti
2014
ISBN: 978-1-4673-5108-9
ISSN: 0090-3507

Reliability worth assessment of an advanced cable health monitoring scheme

Kazemi, Shahram; Millar, John; Saarijärvi, Eero; Lehtonen, Matti
2014

Unsynchronized fault location independent on line parameters for transmission systems

Khater, Wagdy; Elkalashy, Nagy; Kawady, Tamer; Taalab, Abdelmaxoud; Lehtonen, Matti
2014

Cyclone Dagmar of 2011 and its impacts in Finland

Kufeoglu, Sinan; Lehtonen, Matti
2014 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE Industry Application Society (IAS))
ISBN: 978-1-4799-7720-8
ISSN: 2165-4816

Estimating the harmonic distortions in a distribution network supplying EV charging load using practical source data - Case example

Kutt, L.; Saarijärvi, Eero; Lehtonen, Matti; Molder, H.; Niitsoo, J.
2014
ISBN: 978-1-4799-6415-4

Load shifting in the existing distribution network and perspective for EV charging - case study

Kutt, Lauri; Saarijärvi, Eero; Lehtonen, Matti; Rosin, Argo; Mölder, Heigo
2014 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE)
ISBN: 978-1-4799-7720-8
ISSN: 2165-4816

Harmonic distortions of multiple power factor compensated EV chargers

Kütt, Lauri; Saarijärvi, Eero; Lehtonen, Matti; Mõlder, Heigo; Niitsoo, Jaan
2014

Electric vehicle charger load current harmonics variations due to supply voltage level differences — Case examples

Kütt, Lauri; Saarijärvi, Eero; Lehtonen, Matti; Mõlder, Heigo; Niitsoo, Jaan
2014
ISBN: 978-1-4799-4749-2

Harmonic load of residential distribution network — Case study monitoring results

Kütt, Lauri; Saarijärvi, Eero; Lehtonen, Matti; Mõlder, Heigo; Vinnal, Toomas
2014
ISBN: 978-1-4799-5020-1

Harmonic distortions of multiple power factor compensated EV chargers

Kütt, Lauri; Saarijarvi, Eero; Lehtonen, Matti; Molder, Heigo; Niitsoo, Jaan
2014

Simple fault path indication techniques for earth faults

Lehtonen, Matti; Siirto, Osmo; Abdel-Fattah, Mohamed F.
2014
ISBN: 9781479950201

Impact of Node Specific Load Growth and Microgrids on Distribution Network Planning

Millar, Robert John; Saarijärvi, Eero; Lehtonen, Matti; Degefa, Merkebu; Koivisto, Matti
2014

Generating Fault Rate Surfaces using Network Fault Statistics and Geographic Information

Saarijärvi, Eero; Koivisto, Matti; Millar, John; Niskanen, Jussi; Lehtonen, Matti
2014

Planning Large Distribution Networks in Real Environments

Saarijärvi, Eero; Millar, Robert John; Niskanen, Jussi; Lehtonen, Matti; Koivisto, Matti; Ekström, Jussi; Hämäläinen, Pekka
2014

Performance Evaluation of PD Monitoring Technique Integrated into Medium Voltage Cable Network for Smart Condition Assessment

Shafiq, Muhammad; Lehtonen, Matti; Hussain, G.Amjad; Kütt, Lauri
2014

Fault location, isolation and restoration in a city distribution network

Siirto, Osmo; Kuru, Jukka; Lehtonen, Matti
2014
ISBN: 9781479950201

Optimal allocation and assessment of superconducting fault current limiter in an urban meshed 110-kV subtransmission network

Sousa, Bruno J.O.; Pihkala, Atte; Lehtonen, Matti
2014

Comparison of voltage sag and outage cost in urban meshed 110-kV subtransmission network planning

Sousa, Bruno J.O.; Pihkala, Atte; Lehtonen, Matti
2014 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE COMPUTER SOCIETY PRESS)
ISBN: 978-1-4799-7720-8
ISSN: 2165-4816

Evaluation of Fault Current Limitation Techniques in Urban Meshed 110-kV Subtransmission Networks

de Oliveira e Sousa, Bruno Jorge; Pihkala, Atte; Lehtonen, Matti
2013
ISSN: 0000-0000

Pre-Emptive Arc Fault Detection Techniques in Switchgear and Controlgear - Part II

Hussain, G.Amjad; Kumpulainen, Lauri; Lehtonen, Matti; Kay, John A.
2013

Signal Processing of PD Measurements to Predict Arcing Faults in MV Switchgears

Hussain, G.Amjad; Kumpulainen, Lauri; Lehtonen, Matti; Hashmi, Murtaza; Shafiq, Muhammad
2013
ISBN: 978-1-4673-4567-5

EVALUATION OF POWER OUTAGE COSTS FOR INDUSTRIAL SECTORS IN FINLAND

Kufeoglu, Sinan; Lehtonen, Matti
2013

A Review of the Harmonic and Unbalance Effects in Electrical Distribution Networks due to EV Charging

Kütt, Lauri; Saarijärvi, Eero; Lehtonen, Matti; Mõlder, Heigo; Niitsoo, Jaan
2013
ISBN: 978-1-4673-3059-6

Sensor Resonance and its Influence on the Measurement Results of Fast Transients

Kütt, L.; Shafiq, M.; Lehtonen, M.; Mõlder, H.; Järvik, J.
2013

A Review of the Effects of Electric Vehicle Charging on Distribution Network Operation and Power Quality

Kütt, Lauri; Saarijärvi, Eero; Lehtonen, Matti; Mõlder, Heigo; Niitsoo, Jaan
2013
ISSN: 1822-5934

Comparison of Operating Modes of Air-Core Inductive Sensors for Partial Discharge On-line Diagnostics in Medium Voltage Networks

Kütt, L.; Shafiq, M.; Lehtonen, M.; Mõlder, H.; Järvik, J.
2013

Current Harmonics of EV Chargers and Effects of Diversity to Charging Load Current Distortions in Distribution Networks

Kütt, L.; Saarijärvi, E.; Lehtonen, M.; Mõlder, H.; Niitsoo, J.
2013

A new approach for AC state estimation based on a linear network model

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Aminifar, Farrokh; Lehtonen, Matti; Ozdemir, Aydogan
2013
ISBN: 9786050105049

A new approach for long-term electricity load forecasting

Safdarian, Amir; Fotuhi-Firuzabad, Mahmud; Lehtonen, Matti; Aghazadeh, Milad; Ozdemir, Aydogan
2013
ISBN: 9786050105049

An improved technique to determine the wave propagation velocity of medium voltage cables for PD diagnostics

Shafiq, Muhammad; Kütt, Lauri; Mahmood, Farhan; Hussain, Ghulam Amjad; Lehtonen, Matti
2013
ISBN: 978-1-4673-3060-2

Online Partial Discharge Diagnostics in Medium Voltage Branched Cable Networks

Shafiq, Muhammad; Lehtonen, Matti; Isa, Muzamir; Kutt, Lauri
2013

The effect of fault resistance on the earth fault characteristics in unearthed and compensated neutral medium voltage networks

Abdel-Fattah, Mohamed; Lehtonen, Matti
2012
ISBN: 978-1-4673-1980-5

Fault Location in MV Unearthed Distribution Network Using the Undamped Frequency of the Transient Signal

Adzman, Mohd Rafi; Lehtonen, Matti
2012
ISBN: 978-1-61804-086-2
ISSN: 2227-4588

Intelligent fault diagnosis for on-line condition monitoring in smart distribution networks

Hashmi, Murtaza; Hänninen, Seppo; Lehtonen, Matti
2012
ISBN: 978-1-4673-1018-5

Air-core inductive current sensor for fast transients measurements in distribution networks

Kutt, Lauri; Jarvik, Jaan; Lehtonen, Matti; Kilter, Jako
2012
ISBN: 978-1-4673-1980-5

High-Frequency Current Sensor for Power Network On-line Measurements

Kütt, Lauri; Järvik, Jaan; Vaimann, Toomas; Kilter, Jako; Shafiq, Muhammad; Lehtonen, Matti
2012

Design of High Frequency Transient Current Sensor for Powerline On-Line Measurement

Kütt, Lauri; Järvik, Jaan; Kilter, Jako; Shafiq, Muhammad; Lehtonen, Matti
2012 in Electrical and Control Technologies (The World Scientific and Engineering Academy and Society (WSEAS))
ISSN: 1822-5934

National and company interests of electricity transmission investments

Lehtonen, M.; Supponen, M.
2012

Switch and Reserve Connection Placement in a Distribution Network Planning Algorithm

Millar, Robert John; Lehtonen, Matti; Saarijärvi, Eero
2012
ISBN: 978-1-4673-2868-5

Influence of rainfall on lightning flashovers from trees to medium voltage bare and covered conductors

Omidiora, M.; Lehtonen, Matti; Hyvönen, Petri
2012
ISBN: 978-1-4673-1980-5

Modeling of the Lightning Performance of Air Distribution Cable

Omidiora, Michael A.; Lehtonen, Matti; Hyvonen, Petri
2012 in International Scientific Conference on Electric Power Engineering (VSB-TECH UNIV OSTRAVA)
ISBN: 978-80-214-4514-7

Implementation of Rogowski Coil for Transient Current Measurement Using EMTP-ATP

Shafig, Muhammad; Lehtonen, Matti; Kütt, Lauri; Isa, Muzamir
2012

Neutral point treatment and earth fault suppression

Siirto, O.; Loukkalahti, M.; Hyvarinen, M.; Heine, P.; Lehtonen, M.
2012
ISBN: 978-1-4673-1977-5

A novel approach for assessing the impacts of voltage sag events on customer operations

Yasir, M.; Kazemi, S.; Lehtonen, Matti; Fotuhi-Firuzabad, M.
2012
ISBN: 978-1-4673-1980-5

Optimal selection of voltage sag mitigation solution based on event tree method

Yasir, Muhammad; Kazemi, Shahram; Lehtonen, Matti; Fotuhi-Firuzabad, Mahmud
2012
ISBN: 978-1-4673-1977-5

The effect of network compensation on the transient recovery voltage during earth faults on medium voltage networks

Abdel-Fattah, M.F.; Lehtonen, M.
2011

The impact of the distribution network type and configuration on the transient behavior of the fault and neutral points during earth faults

Abdel-Fattah, M.F.; Lehtonen, M.; Millar, R.J.; Kim, C.J.
2011

Investigations on the behavior of the fault current and neutral point voltage during earth faults in unearthed and compensated neutral medium voltage distribution network

Abdel-Fattah, M.F.; Lehtonen, M.
2011

ENERGY EFFICIENCY ANALYSIS OF RESIDENTIAL ELECTRIC END USES: BASED ON STATISTICAL SURVEY AND HOURLY METERED DATA

Degefa, Merkebu Zenebe; Ahola, Anssi; Lehtonen, Matti
2011

Investigation on nature of waste heat from incandescent light bulbs

Degefa, Merkebu Zenebe; Lehtonen, Matti
2011
ISBN: 978-1-4244-8782-0

Impacts of Automatic Loop Restoration Schemes on Service Reliability

Kazemi, Shahram; Lehtonen, Matti; Millar, Robert John
2011

Location of underground cable transitory faults

Kim, C.J.; Bialek, T.O.; Abdel-Fattah, M.F.; Lehtonen, M.
2011

Near real time energy monitoring for end users: Requirements and sample applications

Mikkola, Topi; Bunn, Erik; Hurri, Pasi; Jacucci, Giulio; Lehtonen, Matti; Fitta, Manyazewal; Biza, Solomon
2011 in International Conference on Smart Grid Communications (IEEE)
ISBN: 978-1-4577-1702-4
ISSN: 2373-6836

Optimising MV Network Development and Enhancement Using a Routing Algorithm and Cable Re-Rating

Millar, Robert John; Hyvärinen, Markku; Lehtonen, Matti; Hämäläinen, Pekka
2011

A Probabilistic-Based Technique using Transient RMS Currents for Earth Fault Detection in Medium Voltage Distribution Networks

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2010

Transient-Based Protection as a Solution for Earth-fault Detection in Unearthed and Compensated Neutral Medium Voltage Distribution Networks

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2010

Interactive web-based guideline for the efficiency of household electric power consumption

Degefa, Merkebu Zenebe; Ahola, Anssi; Lehtonen, Matti
2010

Evaluation of chirp detector-based travelling wave localization of earth faults in MV networks

Elkalashy, N.I.; Tarhuni, N.G.; Elhaffar, A.M.; Lehtonen, M.
2010

Exploring Techniques for Monitoring Electric Power Consumption in Households

Fitta, Manyazewal; Biza, Solomon; Lehtonen, Matti; Jacucci, Giulio
2010
ISBN: 978-1-61208-100-7

De-icing Schemes and Operations for Overhead Power Line Based on Shuntb Capacitor Over-compensation Method

Gang, Liu; Hui, Peng; Lehtonen, Matti; Degefa, M.; Yonghui, Chen; Shijn, Jiang; Lei, Sun; Dong, Wang
2010

Enumeration based reliability assessment algorithm considering nodal uncertainties

Gaun, Alexander; Rechberger, G.; Renner, Herwig; Lehtonen, Matti
2010 in IEEE Power and Energy Society General Meeting PESGM (IEEE)
ISBN: 978-1-4244-8357-0
ISSN: 1944-9925

Lightning Overvoltage Protection of Cable Laterals Connected with MV Overhead Lines

Hashmi, Murtaza; Lehtonen, Matti; Hänninen, Seppo
2010

Switching Overvoltages due to Fuse Operations in Cable Laterals Connected with MV Overhead Lines

Hashmi, Murtaza; Lehtonen, Matti; Hänninen, Seppo
2010

The impact of 50 Hz railroad systems on utility system unbalance

Heine, P.; Hyvärinen, M.; Niskanen, J.; Oikarinen, A.; Renner, H.; Lehtonen, M.
2010

Rogowski Coil Evaluation with Different Fault Conditions in Medium Voltage Networks

Isa, M.; Elkalashy, N.I.; Hashmi, G.M.; Lehtonen, M.
2010

Reliability Worth Assessment of an Automatic Loop Restoration Scheme for Urban Distribution Networks

Kazemi, S.; Lehtonen, Matti; Fotuhi–Firuzabad, M.
2010 in IEEE PES Innovative Smart Grid Technologies Conference Europe (IEEE)
ISBN: 978-1-4244-8510-9
ISSN: 2165-4816

A Comprehensive Approach for Reliability Worth Assessment of the Automated Fault Management Schemes

Kazemi, S.; Lehtonen, Matti; Fotuhi–Firuzabad, M.
2010

Fault rates of different types of medium voltage power lines in different environments

Lehtonen, Matti
2010

An Overhead Transmission Line Temperature-rising Method and Experiment Based on Parallel Capacitor Compensating Reactive Power Source

Liu, Gang; Zhao, Xuezeng; Lehtonen, Matti; Isa, M.; Chen, Yonghui; Jiang, Shijin; Liu, Zhiping
2010 in Asia-Pacific Power and Energy Engineering Conference (IEEE)
ISBN: 978-1-4244-4813-5
ISSN: 2157-4839

Experimental Performance of Induced Voltage on Power Line due to Lightning Discharge to nearby Tree

Omidiora, Michael A.; Lehtonen, Matti
2010

Optimal UPFC based on Genetics Algorithmto Improve the Steady-State Performance of HELEN SÄHKÖVERKKO 110 KV NETWORK at Increasing the Loading Pattern

Othman, Ahmed M.; Lehtonen, Matti; Alarini, Mahdi M.
2010

Enhancing the contingency performance of HELENSÄHKÖVERKKO OY 110 KV NETWORK by optimal installation of UPFC based on Genetics Algorithm

Othman, Ahmed M.; Lehtonen, Matti; Alarini, Mahdi M.
2010 in IEEE Power and Energy Society General Meeting PESGM (IEEE)
ISBN: 978-1-4244-8357-0
ISSN: 1944-9925

Real World Optimal UPFC Placement and its Impact on Reliability

Othman, Ahmed M.; Gaun, Alexander; Lehtonen, Matti; Alarini, Mahdi M.
2010 in Energy and Environmental Engineering Series (IEEE)
ISBN: 978-960-474-159-5

Overvoltage spikes transmitted through distribution transformers due to MV spark-gap operation

Sabiha, N.A.; Lehtonen, M.
2010

A Simple Transient-Based Wide-Area Selectivity Technique for Earth-Faults in Isolated and Compensated Neutral Medium Voltage Networks

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2009

A New Transient Impedance-Based Algorithm for Earth Fault Detection in Medium Voltage Networks

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2009

A New Transient Current Based Centralized Selectivity Algorithm for Earth Faults in Isolated and Compensated Neutral MV Networks

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2009

A Novel Transient Current-Based Differential Algorithm for Earth Fault Detection in Medium Voltage Distribution Networks

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2009

EMTP-ATP Investigations of Earth-Fault Transient Simulation in Realistic Finnish 21 kV Overhead Line Medium Voltage Network

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2009

A Novel Earth Fault Detection Technique Based on Extraction of Transient Superimposed Components from the Phase Currents

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2009

Current differential relay with a power-current spectrum blocking for transformer protection

Darwish, H.A.; Lehtonen, M.
2009

Evaluation of Probabilistic-Based Selectivity Technique for Earth Fault Protection in MV Networks

Elhaffar, Abdelsalam; Elkalashy, Nagy; Tarhuni, Naser; Abdel-Fattah, Mohamed; Lehtonen, Matti
2009

Windowed Standard Deviation-Based Transient Feature Extraction for Earth Fault Protection in MV Networks

Elkalashy, Nagy I.; Elhaffar, Abdelsalam; Tarhuni, Naser; Abdel-Fattah, Mohamed; Lehtonen, Matti
2009

Advancing DWT-Bayesian Technique for Earth Fault Protection in MV Networks

Elkalashy, Nagy I.; Lehtonen, Matti
2009

ATP/EMTP Bench Testing of Directionality-Based Selectivity Technique in MV Networks

Elkalashy, Nagy I.; Elhaffar, Abdelsalam; Lehtonen, Matti; Darwish, Hatem
2009

Faulty Phase Identification Using Probability Tail Function for EHV Transmission Systems

Elkalashy, Nagy I.; Lehtonen, Matti
2009

AAFES: An Intelligent Fuzzy Expert System for Realization of Adaptive Autonomy Concept

Fereidunian, A.; Zamani, M.-A.; Lucas, C.; Lesani, H.; Lehtonen, M.
2009

Advantages and Challenges Posed by On-line PD Measurements in Condition Monitoring of Overhead Distribution Networks

Hashmi, Murtaza G.; Lehtonen, Matti; Nordman, Mikael; Muzamir, Isa
2009

Determining Wave Propagation Characteristics of MV XLPE Power Caple using Time Domain Reflectometry Technique

Hashmi, Murtaza G.; Lehtonen, Matti; Ruslan, Papazyan
2009

Modeling On-line Three-phase PD Monitoring System for MV Overhead Covered-Conductors

Hashmi, G.Murtaza; Muzamir, Isa; Lehtonen, Matti
2009

Sensors for On-line Partial Discharge Detection in Covered Overhead Distribution Networks

Hashmi, G.Murtaza; Lehtonen, Matti; Nordman, Mikael; Muzamir, Isa
2009

Comparative study of on-line three phase PD monitoring systems for overhead covered conductor distribution lines

Isa, M.; Hashmi, G.M.; Lehtonen, M.; Abdel-Fattah, Mohamed F.
2009

EMTP-ATP Representation of Three-Phase Partial Discharge Monitoring System for Covered Conductors in Overhead Distribution Lines

Isa, M.; Hashmi, G.M.; Lehtonen, M.
2009

Impacts of Loop Restoration Strategy on Distribution System Reliability

Kazemi, S.; Fotuhi–Firuzabad, M.; Sanaye-Pasand, M.; Lehtonen, Matti
2009

How to detect cloned tags in a reliable way from incomplete RFID traces

Lehtonen, M.; Michahelles, F.; Fleisch, E.
2009

Urban Distribution Networks-Some General Planning Observations

Millar, R.J.; Hyvärinen, M.; Lehtonen, M.; Hämäläinen, P.
2009

Performance Analysis of Lightning Overvoltage on Medium Voltage Distribution Lines Equipped with Covered Conductors

Omidiora, M.A.; Lehtonen, M.
2009

Simulation Performance of Induced Voltages on Power Lines due to Lightning Discharges to nearby Tree

Omidiora, M.A.; Lehtonen, M.
2009

EMTP Simulation of Lightning Overvoltage Discharge to Medium Voltage Overhead Lines with Covered Conductors

Omidiora, M.A.; Lehtonen, M.; Millar, R.J.
2009

Simulation Performance of Lightning Discharges around Medium Voltage Underground Cable

Omidiora, M.A.; Lehtonen, M.
2009

Consideration of Lightning Protection On Medium Voltage Underground Cables With Shield Wire

Omidiora, M.A.; Lehtonen, M.
2009

ATP/EMTP Simulation for Mitigation of Lightning Overvoltages at Customer Entrance

Sabiha, Nehmdoh; Lehtonen, Matti
2009

Experimental verification of distribution transformer model under lightning strokes

Sabiha, Nehmdoh A.; Lehtonen, Matti
2009

A Simple Distribution Transformer Model under Lightning Strokes

Sabiha, Nehmdoh A.; Lehtonen, Matti
2009

A Transient Fault Detection Technique with Varying Fault Detection Window of Earth Modes in Unearthed MV Systems

Abdel-Fattah, Mohamed F.; Lehtonen, Matti
2008
ISBN: 978-1-4244-2501-3

Transient current directionality for detecting earth faults in MV networks

Elkalashy, Nagy I.; Lehtonen, Matti
2008

Verification of DWT-Based Detection of High Impedance Faults in MV Networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2008

Operation evaluation of DWT-based earth fault detection in unearthed MV networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2008

Cable Ampacity Analysis for LV Underground Networks Laid in Thermally Unstable Environments

Hashmi, G.Murtaza; Millar, R.John; Lehtonen, Matti
2008

On-line PD Detection for Condition Monitoring of Covered-Conductor Overhead Distribution Networks

Hashmi, G.Murtaza; Lehtonen, Matti
2008

Transformer Loading Conditions for Future Thermally Unfavourable Environments

Hashmi, G.Murtaza; Lehtonen, Matti; Millar, R.John
2008

Effects of Rogowski Coil and Covered-Conductor Parameters on the Performance of PD Measurements in Overhead Distribution Networks

Hashmi, G.Murtaza; Lehtonen, Matti
2008

Rogowski coil modeling for improved performance of on-line PD monitoring system in CC networks

Hashmi, G.M.; Lehtonen, Matti
2008

Limiting the number of the most severe voltage sags in rural medium voltage networks

Heine, Pirjo; Lehtonen, Matti; Niskanen, Jussi; Oikarinen, Arvo
2008
ISBN: 978-1-4244-2501-3

Hourly metered energy data in energy efficiency analyses

Heine, Pirjo; Lehtonen, Matti; Lähdetie, Artturi; Pekkala, Asko; Koski, Pertti
2008

Increasing household energy awareness

Heine, Pirjo; Lehtonen, Matti; Nissinen, Ari; Korhonen, Marja-Riitta; Alku, Panu; Lehikoinen, Sari; Wings, Sujit; Heiskanen, Jari; Laukkanen, Pentti; Koski, Pertti; Laitila, Päivi; Lappi, Risto
2008

Reliability Worth Assessment of an Advanced Centralized Feeder Automation Scheme

Kazemi, S.; Fotuhi–Firuzabad, M.; Lehtonen, Matti
2008

Novel Techniques for Fault Location in Distribution Networks

Lehtonen, Matti
2008
ISBN: 978-1-4244-2501-3

A distribution planning algorithm for the real world

Millar, Robert John; Lehtonen, Matti; Hämäläinen, Pekka
2008

Performance of shield wire in surge-protected distribution lines

Omidiora, Michael A.; Lehtonen, Matti
2008

Experimental study on shielding effect of trees on direct stokes to MV distribution lines

Omidiora, Michael Adebayo; Lehtonen, Matti
2008

A comparative study on the shielding effect of tree, concrete building on direct lightning strokes to medium voltage distibution line

Omidiora, Michael A.; Lehtonen, Matti
2008

Short interruptions caused by lightning in overhead line medium voltage networks

Parviainen, Markus; Heine, Pirjo; Omidiora, Michael A.; Lehtonen, Matti; Niskanen, Jussi; Oikarinen, Arvo
2008
ISBN: 978-1-4244-2501-3

Experimental Investigations on Multi-end Fault Location System based on Current Traveling Waves

Elhaffar, Abdelsalam; Elkalashy, Nagy I.; Lehtonen, Matti
2007

Signal Processing Applications to Current Traveling Wave Fault Locator of EHV Transmission Networks

Elhaffar, Abdelsalam; Lehtonen, Matti
2007

DTW-based detection of high impedance fault due to leaning trees in compensated MV networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2007

Feature Extraction of High Impedance Arcing Faults in Compensated MV Networks.Part II: DWT-Based Analysis of Residual Components

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2007

DWT-Based Investigation of phase currents for Detecting High Impedance Faults Due to Leaning Trees in Unearthed MV Networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Izzularab, Mohamed A.; Taalab, Abdel-Maksoud I.
2007

Feature Extraction of High Impedance Arcing Faults in Compensated MV Networks.Part I: DWT-Based Analysis of Phase Quantities

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2007

Impact of High Resistance Arcing Fault Characteristics on Behavior of DWT-Based Detection in MV Networks

Elkalashy, Nagy I.; Elhaffar, Abdelsalam; Lehtonen, Matti; Darwish, Hatem A.; Izzularab, Mohamed A.; Taalab, Abdel-Maksoud I.
2007

DWT-Based detection and transient power direction-based location of high impedance faults due to leaning trees in unearthed MV networks

Elkalashy, Nagy I.; Lehtonen, Matti; Darwish, Hatem A.; Taalab, Abdel-Maksoud I.; Izzularab, Mohamed A.
2007

Comparing wave propagation characteristics of MV WLPE cable and Covered-Conductor overhead line using time domain reflectometry technique

Hashmi, G.Murtaza; Papazyan, Ruslan; Lehtonen, Matti
2007

Cable ampacity analysis for MV underground networks laid on thermally unstable environmets

Hashmi, G.Murtaza; Millar, R.John; Lehtonen, Matti
2007

Modeling of rogowski coil for on-line PD monitoring in coveredconductor overhead distribution networks

Hashmi, G.Murtaza; Lehtonen, Matti; Elhaffar, Abdelsalam
2007

Covered-Conductor overhead distribution line modelling and experimental verification for determing its line characteristics

Hashmi, G.Murtaza; Lehtonen, Matti
2007

On-line PD measuring system modeling and experimental verification for covered-conductor overhead distribution lines

Hashmi, G.Murtaza; Lehtonen, Matti
2007

Research and analysis method comparison in finnish reliability worth study

Kivikko, Kimmo; Järventausta, Pertti; Mäkinen, Antti; Silvast, Antti; Heine, Pirjo; Lehtonen, Matti
2007

Vision of the future power system distribution network 2030

Kumpulainen, Lauri; Komulainen, Risto; Kauhaniemi, Kimmo; Lehtonen, Matti; Partanen, Jarmo; Verho, Pekka
2007

Performance of surge arrester to multiple lightning strokes on nearby distribution transformer

Omidiora, M.A.; Lehtonen, Matti
2007

Current status of research on lightning-induced overvoltages

Omidiora, M.A.; Lehtonen, Matti
2007

Simulation of combined shield wire and MOV protection on distribution lines in severe lightning areas

Omidiora, Michael A.; Lehtonen, Matti
2007

3-D finite element modelling of breathing mode for dry-type air-core reactors

Verbruggen, Leon; Kotiniitty, Jari; Lehtonen, Matti
2007

Signal Processing Considerations in Traveling Waves Fault Locators

Elhaffar, Abdelsalam; Hashmi, G.Murtaza; Lehtonen, Matti
2006

Modeling and experimental verification of a high impedance arcing fault in mv networks

Elkalashy, Nagy; Lehtonen, Matti; Darwish, Hatem; Izzularab, Mohamed; Taalab, Abdel-Maksoud
2006
ISBN: 1-4244-0178-X

Electromagnetic transients due to a high impedance arcing fault in mv networks

Elkalashy, Nagy; Lehtonen, Matti; Darwish, Hatem; Taalab, Abdel-Maksoud; Izzularab, Mohamed
2006

Predicting transformers loading capability

Elmoudi, Asaad; Lehtonen, Matti; Nordman, Hasse
2006

Thermal model for power transformers dynamic loading

Elmoudi, Asaad; Lehtonen, Matti; Nordman, Hasse
2006

Effects of harmonics on trasformers loss of life

Elmoudi, Asaad; Lehtonen, Matti; Nordman, Hasse
2006

Assessment of Harmonic Current Effects on Transformers

Elmoudi, Asaad; Lehtonen, Matti
2006

A Transformer Top Oil Temperature Model for use in On-Line Monitoring and Diagnostic System

Elmoudi, Asaad; Lehtonen, Matti
2006

A Transformer Thermal Model for use in an On-Line Monitoring and Diagnostic System

Elmoudi, Asaad; Palola, Jussi; Lehtonen, Matti
2006

Transformer Thermal Model Based on Thermal-Electrical Equivalent Circuit

Elmoudi, Asaad; Lehtonen, Matti; Nordman, Hasse
2006

A partial discharge detection concept for wireless sensors in covered conductor distribution system

Hashmi, G.Murtaza; Lehtonen, Matti; Nordman, Mikael; Elhaffar, Abdelsalam
2006

Wavelet-based de-noising of partial discharge signals in MV covered-conductor networks

Hashmi, G.Murtaza; Lehtonen, Matti; Jabbar, Rana A.; Qureshi, Suhail Aftab
2006

Application of wavelet transform to de-noise partial discharge signals in covered-conductor distribution networks

Hashmi, G.Murtaza; Lehtonen, Matti; Nordman, Mikael
2006

Seasonal Effect on Medium Voltage Faults

Heine, Pirjo; Lehtonen, Matti; Oikarinen, Arvo
2006

Probability of Voltage Sags Depending on the Characteristics of Medium Voltage Networks

Heine, Pirjo; Lehtonen, Matti
2006

Medium Voltage Faults during a Winter Period of Crown Snow

Heine, Pirjo; Lehtonen, Matti; Oikarinen, Arvo
2006
ISBN: 9985-59-647-1

Signal processing methods for power transients

Imris, Peter; Lehtonen, Matti
2006

Calculation of frequency-dependent impedance of overhead power trasmission lines

Imris, Peter; Lehtonen, Matti
2006

On the optimal strategies of condition monitoring and maintenance allocation in distribution systems

Lehtonen, Matti
2006

Customers' Outage costs in electrical distribution networks

Lehtonen, Matti; Heine, Pirjo; Silvast, Antti; Mäkinen, Antti; Järventausta, Pertti
2006
ISBN: 9985-59-647-1

New techniques for fault location in distribution networks

Lehtonen, Matti; Nordman, Mikael; Pitkänen, Jaakko; Antikainen, Tuomas; Hänninen, Seppo; Vähämäki, Olavi; Sauna-aho, Seppo
2006

Costs of Interruptions of Electricity - A Finnish Survey

Lehtonen, Matti; Silvast, Antti; Heine, Pirjo; Mäkinen, Antti; Järventausta, Pertti
2006

Investment Portfolio Tool Specification for an Electrical Network Asset Manager

Palola, Jussi; Hyvärinen, Markku; Haveri, Petteri; Lehtonen, Matti
2006

Outage costs in electrical distribution networks - a Finnish study

Silvast, Antti; Lehtonen, Matti; Heine, Pirjo; Mäkinen, Antti; Järventausta, Pertti
2006

Tools and methods for reducing power cuts in a distribution network - part 1.A new technique for short circuit fault location in distribution networks

Vähämäki, Olavi; Sauna-Aho, Seppo; Hänninen, Seppo; Lehtonen, Matti
2006

Corrected Winding Eddy-Current Harmonic Loss Factor for Transformers Subject to Nonsinusoidal Load Currents

Elmoudi, Asaad; Lehtonen, Matti; Nordman, Hasse
2005

The Reliability Analysis of Distribution Systems with Different Overvoltage Protection Solutions

Heine, Pirjo; Lehtonen, Matti; Oikarinen, Arvo
2005

Measured Faults during Lightning Storms

Heine, Pirjo; Turunen, Jukka; Lehtonen, Matti; Oikarinen, Arvo
2005

Modelling of a voltage transformer for transients

Imris, Peter; Lehtonen, Matti
2005

Transient based earth fault location in 110 kV subtransmission networks

Imris, Peter; Lehtonen, Matti
2005

Risk-based design methodology for the selection of insulation level against lightning-induced overvoltages in medium voltage Lines

Mahmood, Farhan; Humayun, Muhammad; Lehtonen, Matti
2005
ISBN: 978-80-261-0477-3

Real-time transient temperature computation of power cables including moisture migration modelling

Millar, R.John; Lehtonen, Matti
2005

A New Technique for Short Circuit Fault Location in Distribution Networks

Vähämäki, Olavi; Sauna-aho, Seppo; Hänninen, Seppo; Lehtonen, Matti
2005

Travelling Waves Based Earth Fault Location in 400 kV Transmission Network Using Single End Measurement

Elhaffar, Abdelsalam; Lehtonen, Matti
2004
ISBN: 0-7803-8386-9

Measured Sagged Voltages Caused by Identified Power System Faults

Heine, Pirjo; Pohjanheimo, Pasi; Lehtonen, Matti; Oikarinen, Arvo
2004

Overvoltage Protection, Faults and Voltage Sags

Heine, Pirjo; Lehtonen, Matti; Oikarinen, Arvo
2004

Measured faults in an unearthed medium voltage network

Heine, Pirjo; Lehtonen, Matti
2004

Transient based Ground Fault Location using Wavelets

Imris, Peter; Lehtonen, Matti
2004
ISBN: 0-88986-399-7

A Wireless Sensor Concept for Managing Electrical Distribution Networks

Nordman, Mikael; Lehtonen, Matti
2004

TCP/IP Communication Aspects in monitoring of a Remote Wind Turbine

Nordman, Mikael; Sokura, Tapio; Korhonen, Taneli; Lehtonen, Matti
2004

Characteristics of Wireless Sensors for Electrical Distribution Networks

Nordman, Mikael; Nieminen, Tatu; Lehtonen, Matti
2004

Introducing Prob-A-Sag - A Probabilistic Method for Voltage Sag Management

Pohjanheimo, Pasi; Lehtonen, Matti
2004

Economic Analysis of Implementing Novel Power Distribution Automation

Antila, Erkki; Heine, Pirjo; Lehtonen, Matti
2003

Eddy losses calculation in transformer windings using FEM

Elmoudi, Asaad; Lehtonen, Matti
2003

Dispersion measurement using spectral modulation in microstructured fibers

Genty, G.; Lehtonen, M.; Kaivola, M.; Ludvigsen, H.; Broeng, J.
2003

Supercontinuum generation under higher-order mode excitation in a microstructured fiber

Genty, G.; Lehtonen, M.; Kaivola, M.; Ludvigsen, H.
2003

Measured voltage sag distributions

Heine, Pirjo; Pohjanheimo, Pasi; Lehtonen, Matti
2003

Voltage Sag Characteristics of Covered Conductor Feeders

Heine, Pirjo; Pitkänen, Jaakko; Lehtonen, Matti
2003

A comparison of different signal processing techniques for travelling wave fault location

Imris, Peter; Lehtonen, Matti
2003

Fault location in underground distribution networks using travelling waves

Imris, Peter; Lehtonen, Matti
2003

A new model for real-time state estimation in distribution systems

Jalonen, Mikko; Matsinen, Arto; Lehtonen, Matti; Kuru, Jukka; Rantala, Tuomas; Erkkilä, Jukka
2003

Modelling of Power System Component for Reliability Analysis

Lammintausta, Marko; Hirvonen, Ritva; Lehtonen, Matti
2003

Transmission Capacity Assessments by Using Simple Probabilistic Planning

Lammintausta, Marko; Hirvonen, Ritva; Lehtonen, Matti
2003

A Dynamic Fault Model for a Power System Component

Lammintausta, Marko; Hirvonen, Ritva; Lehtonen, Matti
2003

Modelling of the MV measurement transformers for transients

Lehtonen, Matti; Imris, Peter; Elhaffar, Abdelsalam
2003

Absorption measurements of doped fibers using supercontinuum radiation

Lehtonen, M.; Genty, G.; Kaivola, M.; Ludvigsen, H.
2003
ISBN: 952-10-0574-2

Absorption measurements of doped optical fibers using supercontinuum radiation from a microstructured fiber

Lehtonen, M.; Genty, G.; Kaivola, M.; Ludvigsen, H.
2003

Birefringent microstructured fibers: properties and applications

Ludvigsen, Hanne; Genty, G.; Lehtonen, M.; Ritari, T.; Niemi, T.; Kaivola, M.
2003
ISBN: 0-7803-7816-4

Some considerations regarding the installed environment of under-ground power cables

Millar, John; Lehtonen, Matti
2003

Tapered fibers for supercontinuum generation

Niemi, T.; Tuominen, J.; Lehtonen, M.; Genty, G.; Ludvigsen, H.
2003

Infrared supercontinuum generated in short tapered fiber by pumping around the second zero-dispersion wavelength

Niemi, T.; Genty, G.; Lehtonen, M.; Ludvigsen, H.
2003

Managing Concurrent Duties and Time of Wireless Sensors in Electrical Power Systems

Nordman, Mikael; Vähämäki, Olavi; Lehtonen, Matti
2003

A TCP/IP based communication architecture for distribution network operation and control

Nordman, Mikael; Lehtonen, Matti; Holmström, John; Ramstedt, Kenneth; Hämäläinen, Pekka
2003

Spectral modulation due to pulse reshaping in photonic crystal fibers

Genty, G.; Lehtonen, M.; Jensen, J.R.; Kaivola, M.; Ludvigsen, H.
2002

Route to supercontinuum in photonic crystal fibers

Genty, G.; Lehtonen, M.; Jensen, J.R.; Kaivola, M.; Ludvigsen, H.
2002

Influence of Subtransmission System Characteristics on Voltage Sags

Heine, Pirjo; Lehtonen, Matti
2002

Voltage Sags of Looped Medium Voltage Networks, Fifth Nordic Distribution and Asset Management Conference

Heine, Pirjo; Lehtonen, Matti
2002

Voltage Sags Caused by Faults at Different Power System Levels and Experienced by Low Voltage Customers

Heine, Pirjo; Lehtonen, Matti
2002

Requirements for Medium Voltage Fault Statistics in Voltage Sag Calculations

Heine, Pirjo; Lehtonen, Matti
2002

Real-time state estimation in monitoring the load margin of distribution systems

Jalonen, Mikko; Matsinen, Arto; Lehtonen, Matti; Erkkilä, Jukka; Rantala, Tuomas; Kuru, Jukka
2002

Real-time state estimation for distribution systems

Jalonen, Mikko; Matsinen, Aarto; Lehtonen, Matti; Erkkilä, Jukka; Rantala, Tuomas; Kuru, Jukka
2002

A novel state estimation model for distribution systems

Lehtonen, Matti; Jalonen, Mikko; Matsinen, Arto; Kuru, Jukka; Haapamäki, Vesa
2002

Customer voltage density function in distribution system voltage monitoring and control

Lehtonen, Matti; Jalonen, Mikko; Uusitalo, Kristian
2002

Cable Temperature Monitoring

Millar, R.J.; Lehtonen, Matti
2002

The power cable and its thermal environment

Millar, R.; Lehtonen, Matti
2002

Intelligent Wireless Sensors as Fault and Capacity Monitors in Power Systems

Nordman, Mikael; Lehtonen, Matti; Vähämäki, Olavi
2002

Equipment Sensitivity to Voltage Sags - Test Results for Contactors, PCs and Gas Discharge Lamps

Pohjanheimo, Pasi; Lehtonen, Matti
2002

Measured Voltage Sag Levels for Contactors

Pohjanheimo, Pasi; Lehtonen, Matti
2002

New aspects on the dynamic loading of power transformers

Susa, Dejan; Lehtonen, Matti
2002

New computation models for the dynamic loading of power transformers

Susa, Dejan; Lehtonen, Matti; Nordman, Hasse
2002

Comparison of Nordic Countries Country Reports on the Distribution Network

Weldingh, Henrik; Jordanger, Einar; Lehtonen, Matti; Jansson, Sven
2002

Estimating the annual frequency and cost of voltage sags for customers of five Finnish distribution companies

Heine, Pirjo; Pohjanheimo, Pasi; Lehtonen, Matti; Lakervi, Erkki
2001

Voltage Sag Analysis Taken Into Acoount in Distribution Network Design

Heine, Pirjo; Lehtonen, Matti; Lakervi, Erkki
2001

Earth Faults and Related Disturbances in Distribution Networks

Hänninen, Seppo; Lehtonen, Matti; Hakola, Tapio
2001

Earth fault distance computation with artificial neural network trained by neutral voltage transients

Hänninen, Seppo; Lehtonen, Matti; Hakola, Tapio
2001

Automatic fault management in distribution networks

Lehtonen, Matti; Matsinen, Arto; Antila, Erkki; Kuru, Jukka; Vuorenpää, Pekka; Matinlassi, Esa; Petissalo, Seppo
2001

TETRA radio in Monitoring and Control of Secondary Substations

Nordman, Mikael; Lehtonen, Matti; Takala, Juha
2001

TETRA Radio in Monitoring and Control of Secondary Substations

Nordman, Mikael; Lehtonen, Matti; Takala, Juha; Suvinen, Erkki; Hyvärinen, Markku; Antila, Erkki
2001

Comparison of Artificial Neural Networks and Conventional Algorithms in Ground Fault Distance Computation

Eberl, G.; Hänninen, S.; Lehtonen, M.; Schegner, P.
2000

Comparison of Nordic Countries - Country reports on Distribution Automation Activities

Jordanger, E.; Oberger, K.; Lehtonen, M.; Weldingh, H.
2000

An Advanced Model For Automatic Fault Management In Distribution Networks

Lehtonen, M.; Matsinen, A.; Antila, E.; Kuru, J.
2000

Automatic Fault Management in Distribution Networks

Lehtonen, M.; Matsinen, A.; Antila, E.; Rantala, T.; Matinlassi, E.
2000

TETRA Radio in Control of Secondary Substations and in Remote Metering

Nordman, Mikael; Lehtonen, M.; Takala, J.; Suvinen, E.; Hyvärinen, M.
2000

A Novel Application for Fault Location in Distribution Networks

Pettissalo, S.; Sauna-aho, S.; Hänninen, S.; Lehtonen, M.
2000

Non-refereed scientific articles

Unrefereed conference proceedings

Electricity Consumption Analysis of Customer Connections with Ground Source Heat Pumps

Hellman, Hannu-Pekka; Hyvärinen, Markku; Heine, Pirjo; Koivisto, Matti; Lehtonen, Matti
2014

Online Condition Monitoring System for Medium Voltage Distribution Network

Shafiq, Muhammad; Kütt, Lauri; Hussain, G.Amjad; Lehtonen, Matti
2014

Partial discharge diagnostics in Distribution Network using Induction Sensors

Shafiq, Muhammad; Hussain, G.Amjad; Lehtonen, Matti; Elkalashy, Nagy I.; Kütt, Lauri
2013

Publications intended for professional communities

Article in professional journal

Dynamic thermal modelling of distribution transformers

Susa, Dejan; Lehtonen, Matti; Nordman, Hasse
2005 in IEEE TRANSACTIONS ON POWER DELIVERY (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)

Earth faults and related disturbances in distribution networks

Hänninen, Seppo; Lehtonen, Matti; Hakola, Tapio
2002 in IEE Proceedings - Generation, Transmission and Distribution (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC)

Article in professional conference proceedings

Optimal use of demand response for lifesaving and efficient capacity utilization of power transformers during contingencies

Humayun, Muhammad; Ali, Mubbashir; Safdarian, Amir; Degefa, Merkebu Zenebe; Lehtonen, Matti
2015

Computationally light two-zone moisture migration modelling for underground cables critical temperature vs. critical heat flux

Millar, Robert John; Degefa, Merkebu; Lehtonen, Matti; Ekström, Jussi; Brakelmann, Heinrich
2015

Evaluation of New Predictive Arc Fault Technologies

Hussain, G.Amjad; Shafiq, Muhammad; Kay, John A.; Kumpulainen, Lauri; Lehtonen, Matti
2014

Pre-Emptive Arc Fault Detection Techniques in Switchgear and Controlgear

Kumpulainen, Lauri; Hussain, Ghulam Amjad; Lehtonen, Matti; Kay, John A.
2012
ISBN: 978-1-4673-0924-0

Published development or research report

Alueellisen sähkönkulutusanalyysin ja -ennusteprosessin toiminnallinen kuvaus

Hyvärinen, Markku; Heine, Pirjo; Forsström, Stefan; Tella, Mikko; Uurasjärvi, Juho; Koivisto, Matti; Degefa, Merkebu; Lehtonen, Matti; Mörsky, Janne
2012

DWT and Bayesian technique for enhancing earth fault protection in MV networks

Elkalashy, Nagy I.; Lehtonen, Matti; Tarhuni, Naser G.
2009

Urban distribution networks - some general planning observations

Millar, John; Hyvärinen, Markku; Lehtonen, Matti; Hämäläinen, Pekka
2009

Pikajälleenkytkennät ja jännitekuopat

Heine, Pirjo; Lehtonen, Matti
2007

IT-sovellukset ja energiatehokkuuden kehittäminen

Lehtonen, Matti; Heine, Pirjo; Kallonen, Milla; Lähdetie, Artturi; Tapper, Jan; Vitie, Matias; Koski, Pertti; Elväs, Saara; Rautiainen, Kimmo; Husu, Timo; Silvast, Antti
2007

Determination of the wave propagation characteristics for partial discharge monitoring in covered-conductor overhead distribution networks

Hashmi, G.Murtaza; Nordman, Mikael; Lehtonen, Matti
2006

Verkkovisio 2030 ­ Jakelu- ja alueverkkojen teknologiavisio

Kumpulainen, Lauri; Laaksonen, Hannu; Komulainen, Risto; Martikainen, Antti; Lehtonen, Matti; Heine, Pirjo; Silvast, Antti; Imris, Peter; Partanen, Jarmo; Lassila, Jukka; Kaipia, Tero; Viljainen, Satu; Verho, Pekka; Järventausta, Pertti; Kivikko, Kimmo; Kauhaniemi, Kimmo; Lågland, Henry; Saaristo, Hannu
2006

Cable ampacity - A Finnish perspective

Millar, John Robert; Lehtonen, Matti
2006

Sähkönjakelun keskeytyksestä aiheutuva haitta

Silvast, Antti; Heine, Pirjo; Lehtonen, Matti; Kivikko, Kimmo; Mäkinen, Antti; Järventausta, Pertti
2006

An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings

Elhaffar, Abdelsalam; Lehtonen, Matti
2005

Reliability Centered Maintenance (RCM) - Application to Circuit Breakers

Lammintausta, Marko; Lehtonen, Matti
2003

Earth fault distance computation with fundamental frequency signals based on measurements in substation supply bay

Hänninen, Seppo; Lehtonen, Matti
2002

Sähköyhtiöiden kehitysnäkymät Yhdysvalloissa

Lehtonen, Matti
2002

Costs of voltage sags and interruptions with increasing levels of automation

Lehtonen, Matti
2002

Supercontinuum generation, photonic crystal fiber

Lehtonen, M.; Genty, G.; Kaivola, M.; Jensen, J.R.; Ludvigsen, H.
2002

The effect of moisture migration, native soil environment and trough cement quality on the steady-state of HV power cables

Millar, John; Lehtonen, Matti
2002

Keskijännitteisen jakeluverkon maasulkujen ominaisuudet ja paikantaminen

Hänninen, S.; Lehtonen, M.
2000

Johdinkatkoksen havaitseminen keskijännitejakeluverkossa

Hänninen, S.; Lehtonen, M.
2000

TESLA - Information technology and electric power systems technology programme 1998-2002

Lehtonen, M.
2000

Jakelujohtoautomaation kehittäminen

Lehtonen, M.; Matsinen, A.
2000

Decentralised electrical distribution network in power plants

Mannila, P.; Lehtonen, M.
2000

Jännitteen säätö jännitejakauman avulla

Uusitalo, Kristian; Jalonen, M.; Lehtonen, M.
2000

Comparison of Wavelet and Differential Equation Algorithms in Earth Fault Distance Computation

Hänninen, S.; Lehtonen, M.; Hakola, T.; Rantanen, R.
1999

Transient analysis for ground fault distance estimation in electrical distribution network

Lehtonen, Matti
1992

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