Dr. Ali Abur spoke at ABB in Baden Switzerland on Thursday, April 30th. His talk was entitled "Phasor-Only State Estimation." During his visit, he also led research discussions with the ABB power systems group.
Abstract: This talk is concerned about the use of synchronized phasor measurements in power system static state estimation. The availability of synchronized phasor measurements at most utilities is not yet sufficient to make the system fully observable. However, given the rapid deployment of these devices in substations, it is expected that this will be the case in a few years. So, this talk will be based on the assumption that the entire network is already observable by the existing set of phasor measurements. After a brief review of state estimation formulation that uses only phasor measurements, we will present two alternative solution algorithms that are both based on exclusive use of phasor measurements. They will be comparatively discussed with respect to their computational complexity as well as robustness against bad data. The talk will conclude by briefly highlighting some of the benefits of having phasor measurements (as opposed to SCADA measurements) for parameter error identification.
Biography: Ali Abur received his B.S. degree at Orta Dogu Teknik Universitesi, Ankara, Turkey and M.S. and Ph.D. degrees from The Ohio State University. He joined the Department of Electrical Engineering at Texas A&M University where he worked as a Professor between 1985 and 2005. In 2005, he moved to the Department of Electrical and Computer Engineering at Northeastern University in Boston where he is currently a professor. He co-authored the book “Power System State Estimation” and published technical papers and reports on the same topic. He served as an Editor for IEEE Transactions on Power Systems between 1999 and 2011. He is a Fellow of the IEEE and Distinguished Lecturer for PES.