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Estimation of Radial Power System Transfer Path Dynamic Parameters Using Synchronized Phasor Data
2008 (English)In: IEEE Transactions on Power Systems, ISSN 0885-8950, Vol. 23, no 2, 564-571 p.Article in journal (Refereed) Published
Abstract [en]

This paper develops a measurement-based method for estimating a two-machine reduced model to represent the interarea dynamics of a radial, multimachine power system. The method uses synchronized bus voltage phasor measurements at two buses and the line current on the power transfer path. The innovation is the application of the interarea oscillation components in the voltage variables resulting from disturbances for extrapolating system impedances and inertias beyond the measured buses. Expressions for the amplitudes of the bus voltage and bus frequency oscillations as functions of the location on the transmission path are derived from a small-signal perturbation approach. The reduced model provides approximate response to disturbances on the transfer path and offers an alternative to model reduction techniques based on detailed system models and data.

Place, publisher, year, edition, pages
IEEE , 2008. Vol. 23, no 2, 564-571 p.
Keyword [en]
bus frequency oscillations;interarea dynamics;interarea oscillation components;measurement-based method;model reduction techniques;multimachine power system;radial power system transfer path dynamic parameters;small-signal perturbation approach;synchronized bus voltage phasor measurements;synchronized phasor data;two-machine reduced model;phase measurement;power system measurement;
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-63383DOI: 10.1109/TPWRS.2008.919315ISI: 000258765900034OAI: diva2:482105
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. QC 20120126Available from: 2012-01-26 Created: 2012-01-23 Last updated: 2012-01-26Bibliographically approved

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