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Exploiting asymmetric wire critical current for the reduction of AC loss in hts coil windings

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posted on 2022-05-18, 10:14 authored by Zhenan JiangZhenan Jiang, N Endo, Stuart Wimbush, Justin BrooksJustin Brooks, W Song, Rodney BadcockRodney Badcock, D Miyagi, M Tsuda
Critical current and AC loss in coil windings are two important factors for various HTS applications. Many coated conductors exhibit asymmetry in the variation of the critical current with magnetic field angle. This asymmetry results in different coil critical current values depending on the orientation of the conductors in the coil windings. We report critical current and AC loss results at 77 K and 65 K for three hybrid coil assemblies which have a common central winding and different arrangements of the end windings. We found a difference greater than 13% in both the critical current and the AC loss results for the different arrangements. The results imply that if we wind coil assemblies smartly even using the same materials and the same design, we can not only improve critical current but also reduce AC loss significantly.

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Preferred citation

Jiang, Z., Endo, N., Wimbush, S. C., Brooks, J., Song, W., Badcock, R. A., Miyagi, D. & Tsuda, M. (2019). Exploiting asymmetric wire critical current for the reduction of AC loss in hts coil windings. Journal of Physics Communications, 3(9), 095017-095017. https://doi.org/10.1088/2399-6528/ab4437

Journal title

Journal of Physics Communications

Volume

3

Issue

9

Publication date

2019-09-01

Pagination

095017-095017

Publisher

IOP Publishing

Publication status

Published

Online publication date

2019-09-26

ISSN

2399-6528

eISSN

2399-6528

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