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http://dx.doi.org/10.9714/psac.2008.10.1.042

An Analysis on Current Limiting characteristics of an SFCL using Magnetic Coupling between Two Coils through Computer Simulation  

Kim, Jin-Seok (숭실대 공대 전기공학부)
Ahn, Jae-Min (숭실대 공대 전기공학부)
Lim, Sung-Hun (숭실대 공대 전기공학부)
Moon, Jong-Fil (숭실대 공대 전기공학부)
Kim, Jae-Chul (숭실대 공대 전기공학부)
Kim, Chul-Hwan (성균관대 정보통신공학부)
Hyun, Ok-Bae (한국전력연구원)
Publication Information
Progress in Superconductivity and Cryogenics / v.10, no.1, 2008 , pp. 42-47 More about this Journal
Abstract
In this paper, the fault current limiting characteristics for the superconducting fault current limiter(SFCL) using magnetic coupling between two coils were investigated. The SFCL consists of a high-$T_c$ superconducting(HTSC) element and two coils. This SFCL has different characteristics that depend on the connection form, the winding direction and the inductance ratio of two coils. The impedance and the operational current of the SFCL can be adjusted higher or lower than the resistance and the critical current of HTSC element. Therefore, the SFCL can change the amplitude of the limited fault current. To confirm it, the HTSC element was modeled and the fault current limiting characteristics of the SFCL were analysed through computer simulation. It was obtained from the analysis that the connection form and the winding direction of two coils of the SFCL were the important design parameters.
Keywords
superconducting fault current limiter(SFCL); magnetic coupling; fault current limiting characteristics;
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