A superconducting fault current limiter (SFCL) using high temperature superconducting (HTS) wire has been developed in Korea. While the first-generation wire has difficulty in adopting various matrices because it is made by PIT process, the second-generation wire has flexibility in the design of its stabilizer. In general, coated conductor (CC) tape Is clad with a thick metal layer as a stabilizer on the superconducting layer such as YBCO. In addition, the metal layer has good electrical conductivity. However, resistive SFCL, when a fault occurs, limits fault current using high resistance of the stabilizer. Therefore, the design of stabilizer is one of the most important parts in the design of SFCL. In this paper, over-current characteristics of CC tapes clad with stabilizers having various specifications were experimentally investigated. It was possible to design the stabilizer of CC based on calculation. An SFCL rated on 13.2 kV/630 A was designed using the optimal design of the stabilizer.
Bibliographical noteFunding Information:
Manuscript received August 29, 2006. This work was supported by a grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Republic of Korea. M. C. Ahn is with Korea Electrical Engineering & Science Research Institute, 56-1 Shinlim-dong, Kwanak-gu, Seoul, Korea (e-mail: email@example.com). D. K. Park, S. E. Yang, M. J. Kim, J.-W. Park, and T. K. Ko are with the School of Electrical and Electronic Eng., Yonsei University, Seoul, Korea (e-mail: firstname.lastname@example.org). H. M. Kim is with the Korea Electrotechnology Research Institute, Changwon, Korea (e-mail: email@example.com). H. Kang, K. Nam, and B.-Y. Seok are with the Electro-Mechanical Research Institute, Hyundai Heavy Industries Co., Ltd., Yongin, Korea (e-mail: firstname.lastname@example.org). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2007.898130
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering