Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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On the Current Limiting Characteristics and Parameters of Superconducting Fault Current Limiter Introduced to 345kV Electric Power System due to Resistive-Type, Reactive-Type and Their Performance Comparison

유도형과 저항형 초전도한류기의 파라메타를 고려한 전력계통도입효과의 분석 및 성능평가에 관한 연구

  • 홍원표 (한밭대학교 건축설비공학과) ;
  • 김용학 (한밭대학교 건축설비공학과)
  • Published : 2002.05.01
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Abstract

The maximun short circuit current of modern power system is becoming so large that circuit breaker is not expected to be able to shut down the current in the future In order cut over-currents, a system composed of a superconducting fault current limiter(SFCL) and traditional breaker seems to provide a promising solution for furture power operation. In present paper, three line-to-ground fault is assumed to happen at the center of 345kV transmission lines in a large capacity electric power system. The superconducting fault current limiter was represented using a commutation type, which consists of a non-inductive superconducting coil and current limiting element (resistor or reactor). from the viewpoint of current limiting performance, the prevention of the voltage drop at the load bus and comparision characteristics for two type SFCL. Desired design specification and operation parameters of SECL were also given qualitatively by the performance.

본 논문은 전력설비에 조기적용이 예상되는 초전도한류기의 파라메타를 정의하고 앞으로 개발방향을 제시하기 위하여 한류기의 동작원리, 특성 및 계통조기적용가능성들을 근거로 파라메타의 특성을 비교 ·평가하였다. 또한 한류기의 계통적용효과를 분석하기 위하여 SFCL이 기간 특고압 모델계통에 도입한 경우를 상정하여 3선지락 고장에서 저항형과 유도형 SFCL의 도입 효과에 대하여 RTDS (Real Time Digital Simulation)/EMTDC(Electromagnetic Transient DC)로 시뮬레이션하였다. 특히 저항형과 유도형의 한류효과의 비교 평가, 모선전압의 저하 억제 및 계통과 한류기의 파라메타와의 관련성에 대하여 검토하였다.

Keywords

References

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