Séminaire George Weiss

Lien visio : https://teams.microsoft.com/meet/327262304858548?p=OZRoNovIQeVgkpaLrw
Titre : The stability of electric power systems: An introduction for non-specialists and some new results
Résumé : The growing integration of renewable and inverter-based energy sources is reshaping the dynamics of electric power systems and creating new challenges for grid stability. This talk presents a dynamical-systems perspective on power-system stability, with emphasis on models that capture essential grid behavior while remaining accessible to non-specialists. We consider the Network Reduced Power System model and a model with a lossless transmission network and locally constant-power loads, and examine how the local asymptotic stability of an operating point is related to structural properties of the network and the corresponding power-flow equations. In particular, the constant-power model leads to a simple stability characterization based on the Jacobian of the electrical power map, with extensions to more general power consumers and producers.
Biographie : George Weiss is professor of control engineering in the School of EE, Tel
Aviv University. He received the M.Eng. degree in control engineering from the Polytechnic Institute of Bucharest, Romania, in 1981, and the Ph.D. degree in applied mathematics from Weizmann Institute, Rehovot, Israel, in 1989. He has been with Brown University, Providence, RI, USA, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA, Ben-Gurion University, Beer Sheva, Israel, University of Exeter, Exeter, UK, and Imperial College London, U.K. His research interests include distributed parameter systems, operator semigroups, passive and conservative systems (linear and nonlinear), power electronics, the stability of power grids,
repetitive control, sampled data systems, and wind-driven power generators. He is a co-author, with M. Tucsnak, of the book "Observation and Control for Operator Semigroups", Birkhauser, 2009. He has supervised 11 students towards their PhD degree, and is now supervising 5 more. He is leading research projects for the European Commission, for the Israeli Ministry of Energy and for NOGA, the Israeli electricity grid operator.