Wide-Area Power System Damping Control using Synchrophasor Data

February 24, 2012, Webb 1100

Joe Chow

Rensselaer Polytechnic Institute, Electrical & Computer Systems Engineering


This talk presents an interarea mode damping control strategy for power systems using distributed and possibly remote synchrophasor data. A key consideration is the time delay in computing the phasor quantities and the variable communication network latency for controllers to use remote synchrophasor data. Based on a statistical estimate of the synchrophasor arrival time, a control strategy is developed assuming a fixed delay time that would accommodate most of the data. An adaptive component is used to augment the control design for data arriving beyond the selected delay time. A key concern is the stability of the switching control. The design is illustrated with a 2-area power system. Applications to large power systems will be discussed.

Speaker's Bio

Joe Chow is a Professor of Electrical, Computer, and Systems Engineering at Rensselaer Polytechnic Institute, Troy, New York, and the Campus Director of the NSF/DOE CURENT ERC. He received his BS degrees in Electrical Engineering and Mathematics from the University of Minnesota, and the MS and PhD degrees from the University of Illinois, Urbana-Champaign. He worked at General Electric Company before joining RPI in 1987. His current research includes Voltage-Sourced Converter based Flexible AC Transmission Systems, and the analysis, modeling, and control of large power systems using synchronized phasor measurements. He has received several awards in control and power systems, and is a fellow of IEEE.