대한전기학회논문지:전력기술부문A (The Transactions of the Korean Institute of Electrical Engineers A)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

시각동기 위상측정데이터를 이용한 전력계통 상태추정

Electric Power System State Estimation with Time Synchronized Phasor Measurement Data

  • 권형석 (순천향대 정보기술공학부) ;
  • 장한성 (순천향대 전기공학과) ;
  • 김홍래 (순천향대 정보기술공학부)
  • 발행 : 2006.09.01
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⟨ 이전 논문 다음 논문 ⟩

초록

In modern EMS, state estimation is used as a tool for monitoring how the power system operates. A state estimator iteratively calculates the voltage profile of the currently operating power system with voltage, current, and power measurements gathered from the entire system. It is usually assumed that all the measurements are obtained simultaneously. It, however, is not practically possible to maintain the synchronism of the measurements data. Recently, phasor measurements synchronized by satellites are used for the operation of the power systems. This paper describes the state estimator modified to support the processing of synchronized phasor measurements. Synchronized phasor measurements are found to provide synchronism of measurement data and improve the nccuracy/redundancy of the results of running it are presented.

키워드

참고문헌

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