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http://dx.doi.org/10.5207/JIEIE.2009.23.10.014

Analysis Operating Characteristics of Matrix-Type Superconducting Fault Current Limiter in Ground Faults of Power Grid  

Oh, Kum-Gon (조선대학교 공대 전기공학과)
Cho, Yong-Sun (조선대학교 대학원)
Choi, Hyo-Sang (조선대학교 전기공학과)
Oh, Seong-Bo (제주대학교 전기전자공학과)
Kim, Deog-Goo (조선대학교 대학원)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.23, no.10, 2009 , pp. 14-20 More about this Journal
Abstract
It is very important for power stability to suppress the excessive fault current happened frequently in the real power grid The superconducting fault current limiter (SFCL) is one of the most effective ways to reduce the fault current among the facilities developed so far. In this paper, we have investigated the operating characteristics of the power grid with the SFCL according to three types such as the single, double and triple line-to-ground faults. In addition, we analyzed the consumption power of the superconducting units based on the working data of the SFCL. We confirmed that the fault current could be limited lower than its peak value to 85 percentage in initial fault condition and to 85 percentage after one cycle in the matrix-type SFCL. The consumption powers of the superconducting units were almost equal by reduction of the difference of the critical current between superconducting units element.
Keywords
Flux-Lock Type SFCL; Fault Current Limiting; Recovery; Consumed Energy;
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  • Reference
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