Chair of Power Electronics


Costas D. Vournas, IEEE Fellow, received the Diploma of Electrical and Mechanical Engineering from the National Technical University of Athens (NTUA), Athens, Greece, in 1975, the M.Sc. degree in electrical engineering from the University of Saskatchewan, Saskatoon, SK, Canada, in 1978, and the Doctor of Engineering degree from NTUA in 1986. He is currently a Professor in the Electrical Energy Systems Laboratory, School of Electrical and Computer Engineering, NTUA. His research interests include voltage stability and security analysis, as well as power system control.

He has published more than 100 papers in International Journals and Conferences and has co-authored the book “Voltage Stability of Electric Power Systems”. His research interests are in the area of power system dynamics, stability, and control and include voltage stability analysis and security assessment, wind generator integration in power systems, novel control applications in the distribution and transmission grid, as well as the effect of deregulation on power system operation and control. He is Fellow of IEEE since 2005, member of CIGRE and the Technical Chamber of Greece.


  • Our research is focused on the design of high efficient and reliable PWM-based power converter architectures (single-cell, multi-cell, multilevel), their modelling and control to exploit commercial as well as new power semiconductor devices with minimum over design.
    We develop controllers for electric drives and we are particularly skilled in the integration of renewable energy systems into the electric grid.
    Please discover our expertise looking to our recent projects.

    HEART - The Highly Efficient And Reliable smart Transformer
    Further Research Projects