Reduction of irregular magnetic field generated by screening current in REBCO coil

Hiroshi Ueda, Jun Saito, Yuta Ariya, Ayumu Mochida, Tao Wang, Xudong Wang, Koh Agatsuma, Atsushi Ishiyama

研究成果: Article査読

7 被引用数 (Scopus)

抄録

In REBCO coils, the screening current flows in the tape in response to the normal component of the linkage flux to the tape's wide face. Generally, the radial component of the magnetic field is large at both ends of the coil winding. Therefore, changes in the winding arrangement may be expected to reduce screening current induction. Furthermore, multifilamentary or narrow REBCO tapes with widths of a few millimeters can be also expected to reduce the magnitude of the screening current. Based on the above considerations, in this paper, we numerically investigated the reduction effect on a magnetic field generated by a screening current in a REBCO coil, due to thinning tape width and varying coil winding arrangements. It was found that the screening field is inversely proportional to the number of tape filaments, whereas a smaller coil winding aspect ratio leads to a decrease in the screening field.

本文言語English
論文番号6971179
ジャーナルIEEE Transactions on Applied Superconductivity
25
3
DOI
出版ステータスPublished - 2015 6月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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