Numerical Study on AC Loss Reduction of Multi-Pole HTS Coil by Optimal Design of Winding Cross Section of Element Coil

Author

Fukui, Satoshi ; Takahashi, Masaki ; Ogawa, Jun ; Oka, Tetsuo ; Sato, Takao ; Yamaguchi, Mitsugi ; Takao, Tomoaki

Author_Institution

Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

2150

Lastpage

2154

Abstract

We study the optimal design of 2- and 4-pole coils wound by YBCO tapes as the case studies of the optimal design of the multiple-coil system based on the AC loss minimization. The winding cross sections of the element coils of the 2- and 4-pole coils were optimized starting from the conventional rectangular cross section to minimize the AC loss. The result shows that the AC loss in the optimized coil is significantly reduced and the critical current of the optimized coil is increased compared with the base coil. According to the results, the validity of our optimal design method is verified to effectively reduce the AC loss in the multi-pole coils wound by the YBCO tapes. Some disadvantageous points of the optimized coil are also discussed.

Keywords

barium compounds; critical currents; high-temperature superconductors; superconducting coils; superconducting tapes; type II superconductors; yttrium compounds; AC loss reduction; YBCO; YBCO tapes; critical currents; multipole high-temperature superconducting coil; winding cross-section; AC loss; YBCO tape; multi-pole HTS coil; optimal design;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2044161

Filename

5451072