Abstract

Stability is an absolutely essential feature of any electric power system whether it be terrestrial, shipboard, aerospace, or vehicular. Historically, so-called transient or rotor-angle instabilities have dominated the attention of power-system engineers in synchronized terrestrial power systems since such instabilities can lead to major blackouts. However, many other types of instability have occurred due to various dynamic interactions between the generators, transmission networks (ac and dc), loads, and their associated control systems.  Furthermore, with the many advances in power electronics, which have enabled the successful integration of disparate renewable sources such as wind and solar, as well as the introduction of micro-grids, other forms of instability have been introduced. Finally, power systems containing a large percentage of power-electronic-based loads, such as those used in ships, aircraft, spacecraft, and electric vehicles, are subject to so-called negative-impedance instabilities. In this presentation, the many faces of instability are described, along with the mathematical models, frameworks, and control strategies that are needed in order to study and, more importantly, prevent them from occurring.

Biography

Oleg Wasynczuk received the B.S.E.E. degree in electrical engineering from Bradley University, Peoria, IL, in 1976, and the M.S.E.E. and Ph.D. degrees in electrical engineering from Purdue University, West Lafayette, IN, in 1977 and 1979, respectively. He is currently a Professor in the School of Electrical and Computer Engineering at Purdue University and also serves as Chief Technical Officer of PC Krause and Associates, Inc. He is the author or coauthor of more than 100 technical papers, and the coauthor of three textbooks: "Analysis of Electric Machinery and Drive Systems," "Electromechanical Motion Devices," and “Introduction to Electric Power and Drive Systems,” all published by IEEE press/Wiley. His research interests include power system dynamics and control, and the analysis and design of electromechanical devices. Prof. Wasynczuk is a past Chair of the Generator Subcommittee of the Electric Machinery Committee of the IEEE. He is a fellow of the IEEE and was the 2008 recipient of the IEEE PES Cyril Veinott Electromechanical Energy Conversion Award.