Construction of the stator installed in the superconducting magnetic bearing for a 10 kWh flywheel

N. Koshizuka, K. Matsunaga, N. Yamachi, A. Kawaji, H. Hirabayashi, M. Murakami, M. Tomita, S. Une, S. Saito, M. Isono, H. Nasu, T. Maeda, F. Ishikawa

研究成果: Article査読

13 被引用数 (Scopus)

抄録

We fabricated a superconducting magnetic bearing module consisting of a stator of epoxy resin impregnated YBaCuO bulks and a rotor of NdFeB permanent magnet circuits. We obtained levitation force density of 10.5 N/cm2 at 67 K and rotation loss per levitation force of 2.5 mW/N at 77 K. The rotation loss was reduced by the decrease of magnetic field inhomogeneity in the circular direction along the ring shape permanent magnet of the rotor. Based on these results we constructed a stator consisting of five modules and installed in the form of superconducting magnetic bearing for a 10 kWh class flywheel energy storage test system.

本文言語English
ページ(範囲)756-760
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
412-414
SPEC. ISS.
DOI
出版ステータスPublished - 2004 10

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
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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