SmarTSLab seminar: An Optimal Thévenin Equivalent Estimation Method and its Application to the Voltage Stability Analysis of a Wind Hub

We would like to invite you to the SmarTSLab seminar about research and challenges in power systems.

Date: October 25th, 2016, at 11:00 am
Venue: Klassrummet, Osquldas väg 10 7th floor, KTH main campus

Joe H Chow
Professor, Electrical, Computer, and System Engineering
Rensselaer Polytechnic Institute
Troy, NY 12180-3590

This talk will discuss two contributions of RPI to voltage stability analysis: calculation of a Thévenin equivalent model and the AQ-bus method for computing voltage stability margins. Assuming fixed values of the Thévenin voltage and reactance, a power-voltage (PV) curve analysis can be performed to find the voltage collapse point and stability margin from a voltage source to a load center. This paper proposes a method to compute the optimal static Thévenin equivalent voltage and reactance of a power system using measured data. The method is validated with simulated PMU data and with 24-hour SCADA data at a wind hub on a medium voltage transmission system in the US western system. For the wind hub, the Thévenin equivalent parameters are used to compute the maximum power transfer capability of the wind hub as constrained by voltage stability using the AQ-bus method.

Speaker bio
Joe Chow received his MS and PhD degrees from the University of Illinois, Urbana-Champaign. After working in General Electric power systems in Schenectady, he joined Rensselaer Polytechnic Institute in 1987.  He is a professor of Electrical, Computer, and Systems Engineering and the RPI Campus Director of the CURENT ERC. His research interests include power system dynamics and control, synchronized phasor data, voltage stability, and control of renewable resources.  He is a fellow of IEEE and a past recipient of the Donald Eckman Award from the American Automatic Control Council, the Control Systems Technology Award from the IEEE Control Systems Society, and the IEEE Charles Concordia Power System Engineering Award from the IEEE Power and Energy Society.

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