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A numerical study on the feasibility evaluation of a hybrid type superconducting fault current limiter applying thyristors
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  • A numerical study on the feasibility evaluation of a hybrid type superconducting fault current limiter applying thyristors
  • A numerical study on the feasibility evaluation of a hybrid type superconducting fault current limiter applying thyristors
저자명
Nam. Seokho,Lee. Woo Seung,Lee. Jiho,Hwang. Young Jin,Ko. Tae Kuk
간행물명
Progress in superconductivity and cryogenics : PSAC
권/호정보
2013년|15권 4호|pp.26-29 (4 pages)
발행정보
한국초전도저온공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Smart fault current controller (SFCC) proposed in our previous work consists of a power converter, a high temperature superconducting (HTS) DC reactor, thyristors, and a control unit [1]. SFCC can limit and control the current by adjusting firing angles of thyristors when a fault occurs. SFCC has complex structure because the HTS DC reactor generates the loss under AC. To use the DC reactor under AC, rectifier that consists of four thyristors is needed and it increases internal resistance of SFCC. For this reason, authors propose a hybrid type superconducting fault current limiter (SFCL). The hybrid type SFCL proposed in this paper consists of a non-inductive superconducting coil and two thyristors. To verify the feasibility of the proposed hybrid type SFCL, simulations about the interaction of the superconducting coil and thyristors are conducted when fault current flows in the superconducting coil. Authors expect that the hybrid type SFCL can control the magnitude of the fault current by adjusting the firing angles of thyristors after the superconducting coil limits the fault current at first peak.