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Analysis on Current Limiting Characteristics of a Hybrid SFCL with the First Half Cycle Limiting Operation Due to Resistance of Superconducting Element

초전도소자의 저항변화에 따른 반주기내 한류형 하이브리드 초전도 전류제한기의 전류제한 특성 분석

  • 김진석 (숭실대학교 공대 전기공학과) ;
  • 임성훈 (숭실대학교 공대 전기공학과) ;
  • 김재철 (숭실대학교 공대 전기공학과) ;
  • 최종수 (한국전기안전공사)
  • Received : 2011.01.14
  • Accepted : 2011.09.08
  • Published : 2011.10.01

Abstract

The fault current has been increasing due to expansive substation facilities for meeting the increase of demand. To limit increasing fault current in a power system, among methods the superconducting fault current limiter (SFCL) has been considered to be adopted in the power grid. However, in case of adopting SFCL in the power system, most of SFCLs need to solve problems such as recovery, cost. With efforts to solve those problems, the novel fault current limiting device which is called hybrid SFCL is developed. To apply the hybrid SFCL, it has to be needed to analyze application possibility and itself operation characteristics. In this paper, the fault current limiting and operation characteristics of hybrid SFCL with first half cycle the limiting operation in case of various resistances of superconducting element were analyzed through experiment.

Acknowledgement

Supported by : 한국산업기술평가관리원

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