Theory of Stability Regions and its Practical Applications in Online Stability Assessments of Large-Scale Power Grids

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• Prof. Hsiao-Dong Chiang School of Electrical and Computer Engineering Cornell University
• Tuesday 07 November 2023, 14:00-17:00
• 909B Seminar Room .

If you have a question about this talk, please contact Fei Teng.

Recent advances in the theory and estimation of several classes of nonlinear dynamical systems, including two-time-scale DAE systems will be presented. An effective, theory-based methodology, termed BCU methodology, for on-line transient stability assessment (TSA) and enhancement of a large set of contingencies at operating points obtained from state estimators will be presented. A critical evaluation of this methodology using a practical utility model as a fast screening and ranking method has been performed. This evaluation study is the largest in terms of system size—14,500 buses and 3000 generators—for a practical on-line transient stability assessment application. The evaluation results, performed on 5.3 million contingencies, were very promising in terms of speed, accuracy, reliability, and robustness. This study also confirms the practicality of a theory-based methodology for on-line TSA of large-scale power systems. Extension of BCU methodology to modern power grids with IBRs will be discussed.

Bio: Hsiao-Dong Chiang (F’97) received the Ph.D. degree in electrical engineering and computer sciences from the University of California at Berkeley. Since 1998, he has been a professor in the School of Electrical and Computer Engineering at Cornell University, Ithaca, NY, USA . His current research interests include nonlinear systems, power networks, nonlinear computation and optimization, and their practical applications. He holds 28 U.S. and overseas patents and several consultant positions. He and his research team have published more than 480 papers in refereed journals and conference proceedings with more than 17,500 citations. His publications earned an h-index of 65. He is the author of two books: Direct Methods for Stability Analysis of Electric Power Systems (Hoboken, NJ, USA : Wiley, 2011) and (with Luis F. Alberto) Stability Regions of Nonlinear Dynamical Systems (Cambridge, UK: Cambridge Univ. Press, 2015). Dr. Chiang is the founder of Bigwood Systems, Inc.(BSI) in 1995, Ithaca, NY, USA . In the United States, On-line and off-line products developed by Dr. Chiang and his team members at BSI have served utility customers in 45 states that cover over 70% of the US population. He has served as an associate editor for three different IEEE transactions and journals, served as a board member for IEEJ Japan. In 2022, he and his team members received Best paper recognition from IEEE Trans. On Power Systems and Best conference paper from IEEE PES .

This talk is part of the Control and Power Seminars series.

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• 909B Seminar Room
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• Control and Power Seminars

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