A framework for estimation of power systems based on synchronized phasor measurement data
2009 (English)In: 2009 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, VOLS 1-8, IEEE , 2009, 3271-3276 p.Conference paper (Refereed)
This paper presents a new approach for synchronized phasor measurement-based state estimation, which starts from the buses with synchronized phasor data and enables highly accurate estimation of portions of the power system with connectivity to these phasor data buses. Observability analysis is used to assemble the buses for this Phasor State Estimator (PSE). The state estimation is formulated as an iterative least-squares problem, with bus voltage and line current magnitudes and phases as the estimated variables. An important aspect of this formulation is its ability to correct for constant or random phase biases that may exist in some phasor measurement equipment. Beside being a standalone state estimator, the PSE can enhance the reliability of a conventional state estimator. The PSE methodology is demonstrated for a power transfer path in the New York power system.
Place, publisher, year, edition, pages
IEEE , 2009. 3271-3276 p.
New York power system;bus voltage magnitudes;iterative least-squares problem;line current magnitudes;phasor data buses;phasor state estimator;power system state estimation;power transfer path;standalone state estimator;synchronized phasor measurement data;iterative methods;least squares approximations;load flow;phase measurement;power system measurement;power system state estimation;
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-63346DOI: 10.1109/PES.2009.5275545ISI: 000275524901195ISBN: 978-1-4244-4240-9OAI: oai:DiVA.org:kth-63346DiVA: diva2:482039
General Meeting of the IEEE-Power-and-Energy-Society, Calgary, CANADA, JUL 26-30, 2009
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QC 201202022012-02-022012-01-232012-02-02Bibliographically approved