Dynamic equivalent state estimation for multi-area power systems with synchronized phasor measurement units

Vahidnia, Arash, Ledwich, Gerard, Palmer, Edward, & Ghosh, Arindam (2013) Dynamic equivalent state estimation for multi-area power systems with synchronized phasor measurement units. Electric Power Systems Research, 96, pp. 170-176.

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This paper proposes a new approach for state estimation of angles and frequencies of equivalent areas in large power systems with synchronized phasor measurement units. Defining coherent generators and their correspondent areas, generators are aggregated and system reduction is performed in each area of inter-connected power systems. The structure of the reduced system is obtained based on the characteristics of the reduced linear model and measurement data to form the non-linear model of the reduced system. Then a Kalman estimator is designed for the reduced system to provide an equivalent dynamic system state estimation using the synchronized phasor measurement data. The method is simulated on two test systems to evaluate the feasibility of the proposed method.

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4 citations in Scopus
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3 citations in Web of Science®

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ID Code: 55568
Item Type: Journal Article
Refereed: Yes
Keywords: Inter-area oscillation, state estimation, transient stability, generator coherency, Kalman filtering, synchronized phasor measurement unit
DOI: 10.1016/j.epsr.2012.11.006
ISSN: 1873-2046
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Elsevier S.A.
Copyright Statement: This is the author's version of a work that was accepted for publication in Electric Power Systems Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Electric Power Systems Research, [Vol. 96, 2013] http://dx.doi.org/10.1016/j.epsr.2012.11.006
Deposited On: 09 May 2013 02:15
Last Modified: 12 Sep 2016 20:38

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