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

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

저항형 고온초전도 소자의 스위칭 동작을 이용한 브리지형 고온초전도 전류제한기의 동작 특성

Operational Characteristics of Bridge Type SFCL Using Switching Operation of Resistive Type HTSC Element

  • 임성훈 (전북대학교 공업기술연구센터) ;
  • 이상일 (조선대학교 전기공학과) ;
  • 최효상 (조선대학교 전기공학과) ;
  • 한병성 (전북대학교 전기공학과)
  • 발행 : 2004.11.01
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초록

We proposed the bridge type superconducting fault current limiter(SFCL) using switching operation of high-Tc superconducting(HTSC) thin film. The proposed bridge type SFCL consists of HTSC thin film, a diode bridge and a dc reactor. The controller for the operation of an interrupter is required in the conventional bridge type SFCL to prevent the continuous increase of fault current after a fault happens. On the other hand, the proposed bridge type SFCL can limit the fault current without the interrupter and the controller for its operation by the resistance generated when the gradually increased fault current exceeds HTSC thin film's critical current. We calculated the time when the gradually increased fault current started to be limited by the resistance generated in HTSC thin film after a fault happened and confirmed that it could be dependent on the amplitude of source voltage. The experimental results well agreed with the calculated ones from simulation.

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참고문헌

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