Reference : Electric Power Network State Tracking from Multirate Measurements
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
Electric Power Network State Tracking from Multirate Measurements
Alcaide-Moreno, Boris []
Fuerte-Esquivel, Claudio []
Glavic, Mevludin mailto []
Van Cutsem, Thierry mailto [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation >]
IEEE Transactions on Instrumentation and Measurement
IEEE Instrumentation and Measurement Society
Yes (verified by ORBi)
New York
[en] Tracking state estimation ; SCADA ; synchrophasor measurements ; constrained least-squares ; event detection ; innovation analysis
[en] This paper proposes a novel tracking state estimator to process both fast-rate synchronized phasor and slow rate SCADA measurements. The former are assumed to be in limited number. The latter are exploited as and when they arrive to the control center. In order to restore observability, after each execution of the tracking state estimator, forecasted SCADA measurements are used as pseudo-measurements in the next estimation. An event detection analysis allows assessing if the system is in quasi steady-state. If so, an innovation analysis is performed to identify and eliminate erroneous SCADA measurements. The system state is computed by Hachtel’s augmented matrix method. The option of exploiting time-tagged SCADA measurements is also considered. The method is illustrated through detailed dynamic simulations of a test system evolving towards voltage collapse, with and without emergency control.
CONACyT, Mexico (grant 321846) ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
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