[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5207/JIEIE.2007.21.9.101

Real-Time Monitoring and Analysis of Power Systems with Synchronized Phasor Measurements

Kim, Hong-Rae (Dept. of Electronic Information Engineering, Soonchunhyang University)

Publication Information

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.21, no.9, 2007 , pp. 101-108 More about this Journal

Abstract

State estimators are used to monitor the operating states of power systems in modern EMS. It iteratively calculates the voltage profile of the currently operating power system with voltage, current, and power measurements gathered from the entire system. All the measurements are usually assumed to be obtained simultaneously. It is practically impossible, however, to maintain the synchronism of the measurement data. Recently, phasor measurements synchronized via satellite are used for the operation of these power systems. This paper describes the modified state estimator used to support the processing of synchronized phasor measurements. Synchronized phasor measurements are found to provide synchronism of measurement data and improve the accuracy/redundancy of the measurement data for state estimation. The details of the developed state estimation program and some numerical results of operation are presented.

Keywords

Power System State Estimation; Phasor Measurement; Ems; Real-Time Monitoring;

Citations & Related Records

Reference

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