Analysis of current distribution in multi-laminated HTS tape conductor for double pancake coil of SMES

Takataro Hamajima, Naoki Atomura, Yuta Chiba, Tsuyoshi Yagai, Makoto Tsuda, Koji Shikimachi, Naoki Hirano, Shigeo Nagaya

研究成果: Article査読

6 被引用数 (Scopus)

抄録

A multi-laminated HTS tape conductor has been recently developedto fabricate large double pancake coils.If the HTS tapes are simply laminated to form the conductor, the current distribution in the laminated tape conductor of the coil is unbalanced because of different inductances of all tapes. It is very important to analyze current distributions in the multi-laminated tape conductor used for the double pancake coil for SMES. In this paper, we analyze the current distribution in the tape conductor by using electrical circuit model, and then discuss how to obtain the homogeneous current distribution. One way is to transpose the tape position at both ends of pancake coil so as to arrange the tapes symmetrically. However, this method is not perfectly geometrical symmetry for more than 3 laminated tapes in the conductor. We propose new method to obtain homogeneous current distribution by adjusting gaps between HTS tapes in the conductor. Finally we numerically demonstrate the homogeneous current distribution in the 4-laminated tapes with inserting additional thickness among tapes.

本文言語English
論文番号5643129
ページ(範囲)1371-1374
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
21
3 PART 2
DOI
出版ステータスPublished - 2011 6

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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