An Analysis of the January 2019 Eastern Interconnection Power System Forced Oscillation Event Using Online Approximate Maximum Likelihood Estimators
Professor Luke Dosiek, PhD
Department of Electrical, Computer, & Biomedical Engineering
Union College
Schenectady, NY
Abstract: On January 11, 2019, a system-wide forced oscillation (FO) event was observed in the Eastern Interconnection (EI) power grid. Originating from a malfunctioning controller in a Florida power plant, this 0.25-Hz oscillation resonated with the dominant North-South electromechanical mode, resulting in a system response so strong that it was even observable at the distribution level in the Northern edges of the country. This discussion analyzes the Florida FO event using a recently developed toolkit of approximate maximum likelihood estimators (MLEs) for the simultaneous estimation of power system electromechanical modes and FO parameters, including Cramer-Rao Lower Bounds (CRLB) on variance. Background theory in detection and estimation will be discussed, along with the details of implementing the algorithms in an online setting. Finally, the analysis results will be compared with those from the NERC report on the FO event, with consideration given to the question of how operators could practically use these tools as an event unfolds in real time.
BIO: Luke Dosiek is a professor in the Department of Electrical, Computer, & Biomedical Engineering at Union College in Schenectady, NY. He received the Bachelor’s and Master’s degrees in electrical engineering from Clarkson University in 2004 and 2006 and the Ph.D. in electrical engineering at the University of Wyoming in 2010. After a two-year postdoc at Wyoming followed by two years as a research engineer at Assured Information Security in Rome, NY, Luke joined Union college in 2014. His research interests include the application of system identification theory to power systems with a recent focus on situational awareness in systems with high penetration of IBRs and microgrids. Luke is a Senior Member of the IEEE and is active in several Power and Energy Society activities. His work has been recognized with both the NSF CAREER and ASEE Curtis W. McGraw Research Awards.
Thursday, November 14, 2024, 12:15-1:15 pm, CAMP 194
Join Link: https://clarkson.zoom.us/j/97763004044?pwd=fReadMi2o7OYVOIOgYm5yAuGGnbmdy.1
Contact for queries: Prof Leo Jiang, yjiang@clarkson.edu
*Co-Sponsored by IEEE student branch and HKN
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Electrical and Computer Engineering ● CLARKSON UNIVERSITY ● Potsdam, New York 13699-5720