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SUMMARY:Theory of Stability Regions and its Practical Application in Onlin
 e Stability Assessment of Large-Scale Power Grids  - Hsiao-Dong Chiang\, C
 ornell University
DTSTART:20231103T140000Z
DTEND:20231103T150000Z
UID:TALK207889@talks.cam.ac.uk
CONTACT:Fulvio Forni
DESCRIPTION:Recent advances in the theory for stability region estimation 
 for several classes of nonlinear dynamical systems\, including two-time-sc
 ale DAE systems will be presented. An effective methodology\, termed BCU\,
  for on-line transient stability assessment (TSA) and enhancement of a lar
 ge set of contingencies at operating points obtained from state estimators
  will be presented. A critical evaluation of this methodology using a prac
 tical utility model as a fast screening and ranking method has been perfor
 med. This evaluation study is the largest in terms of system size—14\,50
 0 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\, reliabi
 lity\, and robustness. This study also confirms the practicality of a theo
 ry-based methodology for on-line TSA of large-scale power systems. More th
 an a dozen on-line TSA systems have been installed in large utility compan
 ies. Extensions of the BCU methodology to modern power grids with IBRs wil
 l be discussed.\n\nThe seminar will be held in the JDB Seminar Room\, Depa
 rtment of Engineering\, and online (zoom): https://newnham.zoom.us/j/92544
 958528?pwd=YS9PcGRnbXBOcStBdStNb3E0SHN1UT09
LOCATION:Department of Engineering\, James Dyson Building Seminar Room
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