Power Systems and High Voltage Engineering
The focus areas of research in power systems and high voltage engineering are distribution networks, their system solutions and reliability engineering, power system components´ load capacity and ageing, control and monitoring systems including computer applications, automation and communication solutions, end use analysis and power quality.
The strategic focus areas of teaching and research are:
- Loading, aging, diagnostics and condition monitoring of components such as lines, transformers, switchgear, generators.
- New methods for power system fault indication and location, especially utilization of fast phenomena like traveling waves, transients and partial discharges.
- Power system technology, reliability engineering, optimal planning.
- ICT-applications in power systems. Automation systems, measurements, communication, Smart Grids.
- Energy efficiency, electric vehicle charging systems, integration of distributed energy resources.
Research is performed in close collaboration with the electrical industry, utilities and authorities.
The group is led by Professor Matti Lehtonen.
Group members
Latest publications
A Multi-Agent Reinforcement Learning Framework for Voltage-Constrained Incentive Demand Response in PV-Rich Low-Voltage Distribution Systems
Fayaz Ahmed, Ammar Arshad, Attique Ur Rehman, Ghulam Amjad Hussain, Matti Lehtonen
2026
IEEE Access
Data-Driven modal characterization of converter-driven oscillation from synchronized waveform measurement using dynamic mode decomposition
Hock Lim Cheng, Janne Seppänen, Matti Lehtonen
2026
International Journal of Electrical Power and Energy Systems
Condition Monitoring and Fault Diagnostics of Distribution Transformers in the Bhutanese Utility Company: A Case Study of 11/0.4kV, 500 kVA Transformer
Devika Chhetri, Tempa Zangmo, Robert John Millar, Chenga Dorji
2026
Modeling, Simulation and Optimization - Proceedings of CoMSO 2024
Identifying Faults in Power Transformers Based on Machine-Learning Algorithms Compared With Other Techniques
Osama E. Gouda, Nourhan Ramadan, Matti Lehtonen, Mohamed M.F. Darwish
2026
Energy Science and Engineering
Investigation on the Thermal Characteristics of 33 kV DC Vacuum Circuit Breakers Using 3-D Modeling
Ossama E. Gouda, Ahmed Hamdy Elsersy, Matti Lehtonen, Mohamed M.F. Darwish
2026
IEEE Access
Integrated Multi-Objective Optimization of Rural Building Renovation: Envelope and Electrification Solutions
Xinyi Hu, Juha Jokisalo, Risto Kosonen, Matti Lehtonen
2026
Proceedings of the 15th REHVA HVAC World Congress - CLIMA 2025 - Volume 3
Demand response potential of green hydrogen production in the green energy transition in Finland
Ilkka Jokinen, Matti Lehtonen
2026
2025 IEEE 66th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)
Cost-Optimal Dimensioning of Energy Systems in Kindergarten and Apartment Building with Renewables in a Nordic Climate
Yuchen Ju, Xinyi Hu, Juha Jokisalo, Risto Kosonen, Altti Meriläinen, Antti Kosonen, Tianchen Xue
2026
Proceedings of the 15th REHVA HVAC World Congress - CLIMA 2025 - Volume 1
Electrical Performance of Porcelain Insulating Material Incorporating Micro-Scale Waste Glass
Hesham S. Karaman, Sherif M.M. Sherif, Safaa M.A. El-Gamal, Mousa A. Abd-Allah, Matti Lehtonen, Mohamed M.F. Darwish, Ahmed Elzawawy
2026
IEEE Access
Oscillatory stability in power grid network: A review on conventional and evolving types and damping improvement
Nand Kishor, Janne Seppänen, Jukka Turunen, Omkar Yadav, Innocent Kamwa
2026
Sustainable Energy, Grids and Networks