대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

분산 전원의 고립 운전 검출 기법 개발

Development of a Loss of Mains Detection Method for Distributed Resources

  • 장성일 (강원대학교 전기전자정보통신공학부) ;
  • 김광호 (강원대학교 전기전자정보통신공학부)
  • Jang, S.I. (Department of Electrical and Computer Engineering, Kangwon National University) ;
  • Kim, K.H. (Department of Electrical and Computer Engineering, Kangwon National University)
  • 발행 : 2001.05.11
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초록

The islanding protection for distributed resources (DR) becomes an important and emerging issue in power system protection since the distributed generator installations are rapidly increasing and most of the installed systems are interconnected with distribution network. In order to avoid the negative impacts on distributed network resulting from islanding operations of DR, it is necessary to detect the loss of mains (LOM) effectively. This paper presents a new LOM detection method using the rate of change in total harmonic distortion (THD) of current. The proposed method effectively detects LOM of the DR unit operating in parallel with the distribution network. We also verified the efficiency of the proposed method using the radial distribution network of IEEE 34 bus model.

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