- 초전도(신)전력계통 고장전류 분석 및 병렬한류시스템
- ㆍ 저자명
- 윤재영,이승렬,김종율,Yoon. Jae-Young,Lee. Seung-Ryul,Kim. Jong-Yul
- ㆍ 간행물명
- 한국초전도·저온공학회논문지
- ㆍ 권/호정보
- 2006년|8권 1호|pp.49-53 (5 pages)
- ㆍ 발행정보
- 한국초전도저온공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
This paper specifies the new power supply paradigm converting 154kV voltage level into 22.9kV class with equivalent capacity using superconducting rower facilities and analyze the fault current characteristics with and without HTS-FCL (High Temperature Superconducting-Fault Current Limiter). Superconducting new power system is the power system to which applies the 22.9kV HTS cable in parallel to HTS transformer and HTS-FCL with low-voltage and mass-capacity characteristics replacing 154kV conventional cable and transformer. The fault current of superconducting new power system will increase greatly because of the mass capacity and low impedance of HTS transformer and cable. This means that the HTS-FCL is necessary to reduce the fault current below the breaking current of circuit breaker. This paper analyze the fault current and suggests the parallel HTS-FCL scheme complementing the inherent problem of HTS-FCL, that is recovery after quenching is impossible within shorter than a few seconds.