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

The Korean Institute of Electrical Engineers (대한전기학회)
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Countermeasure of Voltage Sag in Radial Power Distribution System using Load Transfer Switching

부하 절환 스위칭을 이용한 방사상 배전계통에서의 순간전압강하 대책

  • 윤상윤 (숭실대 공대 전기공학과) ;
  • 오정환 (숭실대 공대 전기공학과) ;
  • 김재철 (숭실대 공대 전기공학과)
  • Published : 2000.11.01
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Abstract

In this paper, we propose a method for mitigating for mitigating the effect of voltage of voltage sag in radial power distribution systems using load transfer switching (LTS). The term of LTS is defined that the weakness load points for voltage sag transfer to the alternative source during the fault clearing practices. The sequenced of proposed LTS method is divided into the search of weakness points for voltage sag using the risk assessment model and transfer behavior of weakness points. The search of weakness point is carried out using the risk assessment model of voltage sag and Monte Carlo simulation method and the historical reliability data in Korea Electric Power Corporation (KEPCO) are also used. Through the case studies, we verify the effectiveness of proposed LTS method and present the searching method of effective application points of LTS method using the risk assessment model.

Keywords

References

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