전력계통의 중성선에 적용된 초전도한류기의 대칭고장전류 저감방안 분석Analysis on Reduction Method of Symmetrical Fault Current in a Power System with a SFCL applied into Neutral Line
- Other Titles
- Analysis on Reduction Method of Symmetrical Fault Current in a Power System with a SFCL applied into Neutral Line
- Authors
- 임성훈
- Issue Date
- Feb-2010
- Publisher
- 한국전기전자재료학회
- Keywords
- Superconducting fault current limiter (SFCL); Unsymmetrical fault current; Balanced three-phase system; Neutral line; Fault current limiting and recovery characteristics
- Citation
- 전기전자재료학회논문지, v.23, no.2, pp.148 - 152
- Journal Title
- 전기전자재료학회논문지
- Volume
- 23
- Number
- 2
- Start Page
- 148
- End Page
- 152
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/14927
- ISSN
- 1226-7945
- Abstract
- The superconducting fault current limiter (SFCL) applied into the neural line of a power system, which can limit the unsymmetrical fault current from the single-line ground fault or the double-line ground fault, was reported to be the effective application location of the SFCL in a power system. However, the limiting operation for the symmetrical fault current like the triple line-ground fault is not effective because of properties of the balanced three-phase system. In this paper, the limiting method of the symmetrical fault current in a power system with a SFCL applied into neutral line was suggested. Through the short-circuit experiments of the three-phase fault types for the suggested method, the fault current limiting and recovery characteristics of the SFCL in the neutral line were analyzed and the effectiveness of the suggested method was described.
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