2011年6月
Ac loss reduction of multilayer superconducting power transmission cables by using narrow coated conductors
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
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- 巻
- 24
- 号
- 6
- 開始ページ
- 065013
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0953-2048/24/6/065013
- 出版者・発行元
- IOP PUBLISHING LTD
The ac loss characteristics of coated conductors are dominated by the magnetic field component normal to their superconductor layer. Multilayer cables as well as monolayer cables consisting of 4 mm-wide coated conductors (named 4 mm cables) and those consisting of 2 mm-wide coated conductors (named 2 mm cables) were designed, and numerical electromagnetic field analyses were performed in their cross sections to calculate their ac losses. Trapezoidal lateral critical current density J(c) distributions with shoulders as well as uniform ones were assumed in coated conductors for the analyses. The former models the degraded J(c) near the edges of coated conductors. In the case of the monolayer, the calculated ac losses of the 2 mm cables were comparable to those of the 4 mm cables. In the cases of the multilayers, the calculated ac losses of the 2 mm cables were obviously less than those of the 4 mm cables. The degraded J(c) near the edges of coated conductors more seriously affects the ac loss characteristics of the 2 mm cables than those of the 4 mm cables. However, even if we consider the influence of the degraded J(c) near the edges of coated conductors, 2 mm-wide coated conductors are more profitable than 4 mm-wide coated conductors in multilayer cables from the viewpoint of ac loss reduction.
- リンク情報
- ID情報
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- DOI : 10.1088/0953-2048/24/6/065013
- ISSN : 0953-2048
- Web of Science ID : WOS:000290472900015