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Fault Current Limiting Characteristics of New Resistive Type Superconducting Fault Current Limiter using Flux Linkage

Sung-Hun Lim 3Byoung-Sung Han 3Seokcheol Ko 4Hyeong-Gon Kang 1Hyo-Sang Choi 2

1. Chonbuk National University, Basic Science Research Institute, 664-14, Duckjin-Dong 1Ga, Jeonju 561-756, Korea, South
2. Chosun University, Department of Electrical Engineering, 375, Seosuk-Dong, Dong-Gu 501-759, Korea, South
3. Chonbuk National University, Research Center of Industrial Technology, Engineering Research Institute, 664-14, Duckjin-Dong 1 Ga, Jeonju 561-756, Korea, South
4. Chonbuk National University, Division of Electronics and Information Engineering, 664-14, Duckjin-Dong 1 Ga, Jeonju 561-756, Korea, South


The increase in the capacities of power transmission and in fault current of the related machinery in the grid has resulted in the development of various types of superconducting fault current limiters (SFCLs). However, as a solution to increase the ratings of voltage and current of SFCL for the application into real power system, the method to use magnetically coupled coils have been required.
In this paper, we proposed the new resistive type SFCL using flux linkage between coil 1 and coil 2. The proposed SFCL consisted of a YBCO thin film and a reactor, which was wound in parallel with two coils on a same iron core. The operational characteristics were analyzed based on the equivalent circuit of this SFCL and the fault current limiting characteristics were investigated through the experiments. The limiting fault current and the resistance of HTSC element could be controlled by the adjustment of the inductances of two coils. It was shown through the analysis that this new resistive type SFCL could increase the short-circuit capacity as well as the ratings of voltage.


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Presentation: poster at E-MRS Fall Meeting 2004, Symposium E, by Sung-Hun Lim
See On-line Journal of E-MRS Fall Meeting 2004

Submitted: 2004-04-29 18:54
Revised:   2009-06-08 12:55