Operating Characteristics of Hybrid Type Superconducting Fault Current Limiter = 하이브리드형 초전도 한류기의 동작 특성

다국어 초록 (Multilingual Abstract)

We investigated the operating characteristics of the hybrid-type superconducting fault current limiter (SFCL) according to the inductance of secondary windings. The hybrid type SFCL consists of a transformer that has a primary winding and a secondary winding with serially connected YBa₂Cu₃O？ (YBCO) films. The resistive-type SFCL has difficulty when it comes to raising the capacity of the SFCL due to slight differences of critical current densities between units and structure of the SFCL. The hybrid-type SFCL with closed-loop is able to achieve capacity increase through the electrical isolation and reduction of the inductance of the secondary winding with a superconducting element of the same critical current. On the other hand, the current limiting characteristics were nearly identical in the hybrid-type SFCL with open-loop compared to closed-loop, but quench time was longer than the hybrid-type SFCL with closed-loop. We confirmed that the capacity of the SFCL was increased effectively by the reduced inductance of the secondary winding. In addition, the power burden of the system also could be lowered by reducing the inductance of secondary winding.

목차 (Table of Contents)

• Abstract
• 1. INTRODUCTION
• 2. EXPERIMENTAL
• 3. RESULTS AND DISCUSSION
• 4. CONCLUSIONS
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 Hyo-Sang Choi, "Switching properties of a hybrid type superconducting fault current limiter using YBCO stripes" 14chosu (14chosu): sep.2002.

2 M. Yamaguchi, "Performance of DC reactor type fault current limiter using high superconducting coil" 9 (9): 940-943, Jun.1999.

3 Sung-Hun Lim,, "Operational characteristics of flux-lock-type high - T/sub c/superconducting Fault Current Limiter with a Tap changer" 14 (14): 82-86, mar.2004.

4 Hyo-Sang Choi,Hye-Rim Kim, "Operating properties of superconducting fault limiters based on YBCO thin films" 41 (41): 163-167, mar.2001.

5 W. Paul, "Fault current limiter based on high temperature superconductors different concepts, test results, simulations, applications" 354 (354): 27-33, May2001

6 Yu Jiang, Shi Dongyuan, Duan Xianzhong, Tang Yuejin and Cheng Shijie, "Comparison of supercon- ducting fault current limiter in power system" 1 : 43-47, 2001.