Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Protectability Evaluation of Distance Relay based on a Probabilistic Method for Transmission Network

오차확률 가반 송전계통 보호계전기 보호도 평가방법 연구

  • Zhang, Wen-Hao (Next-Generation Power Technology Center Myongji University) ;
  • Choi, Myeon-Song (Next-Generation Power Technology Center Myongji University) ;
  • Lee, Seung-Jae (Next-Generation Power Technology Center Myongji University)
  • 짱원하오 (차세대전력기술연구센터 명지대학교) ;
  • 최면승 (차세대전력기술연구센터 명지대학교) ;
  • 이승재 (차세대전력기술연구센터 명지대학교)
  • Published : 2008.07.16
Download PDF
⟨ Previous Next ⟩

Abstract

This paper defines a concept of "protectability" for the performance evaluation of distance relay considering its sensitivity and selectivity. The paper starts from the probabilistic modeling of the errors, and based on this model, a detailed explanation of protectability calculation for each zone of the distance relay is presented. An effect of the Weighting Rate and the Measurement Deviation on the protectability evaluation is also given. By considering this effect, the optimization of relay setting can be realized. The proposed method is applied to a typical model system to show its effectiveness.

Keywords