Transient Stability Characteristics of a 1-m Single-Layer YBCO Cable

Author

Ishiyama, Atsushi ; Wang, Xudong ; Ueda, Hiroshi ; Yagi, Masashi ; Mukoyama, Shinichi ; Kashima, Naoji ; Nagaya, Shigeo ; Shiohara, Yuh

Author_Institution

Dept. of Electr. Eng. & Biosci., Waseda Univ., Tokyo

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

1228

Lastpage

1231

Abstract

YBCO tapes are expected to be used in future high temperature superconductor (HTS) applications as they have better J_c characteristics at high temperatures and in high magnetic fields. For power applications such as transmission cables, YBCO tapes and a copper former are connected in parallel and they might be subjected to a short-circuit fault current that is 10 to 30 times the normal operating current. Therefore, the over-current behavior, including the hot-spot and the distribution of transport current between the copper-laminated YBCO tapes and the copper former, is very important to examine the stability and feasibility of the cable. This paper describes the experimental results for over-current pulses of a 1-m single-layer cable fabricated with five copper-laminated YBCO tapes and a copper former. Further, we performed numerical simulations by using a newly developed computer program based on the 3D finite element method.

Keywords

barium compounds; finite element analysis; high-temperature superconductors; power cables; stability; superconducting cables; superconducting tapes; yttrium compounds; 3D finite element method; YBa₂Cu₃O₇; copper former; copper-laminated tapes; over-current pulses; single-layer YBCO cable; size 1 m; transient stability characteristics; FEM analysis; Fault current; YBCO; over-current; transient stability; transmission cable;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.920610

Filename

4519802