Fault Current limiting Characteristics of Flux-Lock type Superconducting Fault Current Limiter with Open-loop Iron Core according to the Voltage Level

개루프 철심을 이용한 자속구속형 초전도한류기의 전압별 전류제한 특성분석

  • 남긍현 (조선대학교 전기공학과) ;
  • 최효상 (조선대학교 전기공학과) ;
  • 박형민 (조선대학교 전기공학과) ;
  • 조용선 (조선대학교 전기공학과) ;
  • 이나영 (조선대학교 전기공학과) ;
  • 임성훈 (전북대학교 공업기술연구센터)
  • Published : 2005.11.18

Abstract

Superconducting fault current limiter (SFCL) provides the effect such as enhancement in power system reliability due to limiting fault current in a few miliseconds. The flux-lock type SFCL among various type SFCLs consists of two coils wound on the same iron core and a component using the YBCO thin film. In the SFCL, operation characteristics can be controlled by adjusting the inductances and the winding directions of the coils. In this paper, we investigated the various fault current limiting characteristics according to the voltage level. To analyze the current limiting performance, we compared operational characteristics on the subtractive polarity winding direction on in case of open-loop iron core.

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