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Home | Seminars and Symposia | Past seminars/symposia: Thursday, April 26, 2012

DTC Leading Edge Seminar Series

Synchro-phasor Assisted Power System State Estimation and Parameter Error Identification


Ali Abur
Northeastern University
Boston, MA

Thursday, April 26, 2012
3:30 p.m. reception
4:00 p.m. seminar

401/402 Walter Library

View webcast of this seminar

AburReliable and efficient operation of large interconnected power systems requires accurate information about the operating state and network model on a continuous basis. This is accomplished by frequent scanning of substation measurements and processing them to obtain the best estimate of the system state as well as the real-time model of the power system. Latest additions to the set of available measurements at the substations are the phasor measurements of bus voltages and branch currents which are synchronized by the GPS system. These measurements provide some improvements in the way state estimation is executed as well as in identifying network parameter errors. In this talk, we will first present an overview of the synchro-phasor assisted power system state estimation highlighting the impact of these measurements on the solution algorithm as well as measurement design. We will then look at the network parameter error identification problem and present a practical solution that can be implemented as an add-on function without requiring any changes to the existing state estimation code.


Ali Abur obtained his B.S. degree from Orta Dogu Teknik Universitesi, Turkey in 1979 and both his M.S. and Ph.D. degrees from the Ohio State University in 1981 and 1985 respectively. He was a faculty member at Texas A&M University until November 2005 when he joined the faculty of Northeastern University as a Professor and Chair of the Electrical and Computer Engineering Department. His research and educational activities have been in the area of power systems. He is a Fellow of the IEEE for his work on power system state estimation. He co-authored a book and published widely in IEEE journals and conferences. He was on the Editorial Board of IEEE Transactions on Power Systems during 1999-2011. He currently serves as an editor of Power Engineering Letters and as an IEEE PES Distinguished Lecturer.