Characteristics of the magnetic flux-offset type FCL by switching component
기관명 | NDSL |
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저널명 | Progress in superconductivity and cryogenics : PSAC |
ISSN | 1229-3008,2287-6251 |
ISBN |
저자(한글) | Jung, Byung-Ik,Choi, Hyo-Sang |
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저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2016-01-01 |
초록 | The study of superconducting fault current limiter (SFCL) is continuously being studied as a countermeasure for reducing fault-current in the power system. When the fault occurred in the power system, the fault-current was limited by the generated impedance of SFCLs. The operational characteristics of the flux-offset type SFCL according to turn ratios between the primary and the secondary winding of a reactor were compared in this study. We connected the secondary core to a superconductor and a SCR switch in series in the suggested structure. The fault current in the primary and the secondary winding of the reactor and the voltage of the superconductor on the secondary were measured and compared. The results showed that the fault current in the load line was the lowest and the voltage applied at both ends of the superconductor was also low when the secondary winding of the reactor had lower turn ratio than the primary. It was confirmed based on these results that the turn ratio of the secondary winding of the reactor must be designed to be lower than that of the primary winding to reduce the burden of the superconductor and to lower the fault current. Also, the suggested structure could increase the duration of the limited current by limiting the continuous current after the first half cycle from the fault with the fault current limiter. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201620438448255 |
첨부파일 |
과학기술표준분류 | |
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ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | Superconducting fault current limiter (SFCL),flux-offset type FCL,Silicon controlled rectifier (SCR),Turn ratio of a reactor |