Reference : State Reconstruction from a Limited Number of Synchronized Phasor Measurements: Appli...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/2268/127096
State Reconstruction from a Limited Number of Synchronized Phasor Measurements: Application to Voltage Instability Detection
English
Glavic, Mevludin []
Van Cutsem, Thierry mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation >]
Jul-2012
Proceedings of the IEEE PES General Meeting
No
Yes
International
IEEE Power Engineering Society General Meeting
du 22 au 26 juillet 2012
IEEE
San Diego (CA)
USA
[en] Long-term voltage instability ; instability detection ; wide-area monitoring ; sensitivity analysis ; synchronized phasor measurements ; unobservability ; state estimation ; state reconstruction ; weighted least squares ; constrained optimization
[en] This paper deals with the performance of the wide-area monitoring previously proposed by the authors in [1], [2] for early detection of voltage instability, when a limited number of synchronized phasor measurements is available. This sensitivity-based scheme assumed that phasor measurements are sufficient in number and location for a state estimator to determine the voltages at all buses of the region prone to voltage instability. This paper demonstrates that the method still performs well when relying on bus voltages obtained from a state reconstruction procedure exploiting a limited number of synchronized phasor measurements which do not make the region of concern observable. The state reconstruction is formulated as the minimization, under constraints, of a weighted least square objective involving the available phasor measurements together with bus power pseudo-measurements relative to a reference state. The presented results relate to a 52-bus system with phasor measurements obtained from detailed time simulation of a long-term voltage unstable evolution triggered by a large disturbance. [1] M. Glavic, T. Van Cutsem, “Wide-Area Detection of Voltage Instability From Synchronized Phasor Measurements. Part I: Principle,” IEEE Trans. Power Syst., Vol. 24, No. 3, pp. 1408-1416, Aug. 2009 [2] M. Glavic, T. Van Cutsem, “Wide-Area Detection of Voltage Instability From Synchronized Phasor Measurements. Part II: Simulation Results,” IEEE Trans. Power Syst., Vol. 24, No. 3, pp. 1417-1425, Aug. 2009
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/127096
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