전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제66권1호
  • /
  • Pages.21-26
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  • 2017
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  • 1229-800X(pISSN)
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  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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모터부하를 고려한 상정사고 발생 시 저전압 부하차단 적용 방안에 대한 연구

A Study on the Application of Under Voltage Load Shedding Scheme in Line Contingency considering Motor Load

  • 투고 : 2017.02.03
  • 심사 : 2017.02.27
  • 발행 : 2017.03.01
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초록

Failure of high-voltage transmission line, which is responsible for large-scale power transmission, can be reason for system voltage instability. There are many methods to prevent voltage instability like adjustment of equipment, the generator voltage setting, and load shedding. Among them, the load shedding, have a problem of economic loss and cascading effect to power system. Therefore, the execution of load shedding, amount and timing is very important. Conventionally, the load shedding setting is decided by the preformed simulation. Now, it is possible to monitor the power system in real time by the appearance of PMU(Phasor Measurement Unit). By this reason, some of research is performed about decentralized load shedding. The characteristics of the load can impact to amount and timing of decentralized load shedding. Especially, it is necessary to consider the influence of the induction motor loads. This paper review recent topic about under voltage load shedding and compare with decentralized load shedding scheme with conventional load shedding scheme. And simulations show the effectiveness of proposed method in resolving the delayed voltage recovery in the Korean Power System.

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참고문헌

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