FEM analysis of effect of magnetism of substrate on AC transport current loss of HTS conductor with ferromagnetic substrate

被引：20

作者：

Miyagi, Daisuke ^{[1
]}

Amadutsumi, Yoshitomo

Takahashi, Norio

Tsukamoto, Osami

机构：

[1] Okayama Univ, Dept Elect & Elect Engn, Okayama 7008530, Japan

[2] Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2007年 / 17卷 / 02期

关键词：

AC transport current loss; coated conductor; ferromagnetic substrate; finite element method;

D O I：

10.1109/TASC.2007.899088

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

It is reported that the AC transport current loss of coated conductors with ferromagnetic Ni-alloy substrates is larger than the loss calculated by the Norris equation. This means the significant influence of the ferromagnetism of the substrate on AC transport current loss. In this paper, the current distribution and AC loss of HTS coated conductor with ferromagnetic substrate are analysed using the finite element method taking account of the non-linear E - J characteristics. Calculated results show that the AC transport current loss is increased because the current distribution changes in the superconducting layer due to the concentration of magnetic flux in the substrate. The effect of magnetism of substrate on the current distribution of superconducting layer is illustrated and the AC transport current loss characteristics of the HTS coated conductor with ferromagnetic substrate are examined.

引用

页码：3167 / 3170

页数：4

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