Fabrication and evaluation of superconducting bearing module for 10 kW h flywheel

K. Matsunaga, M. Tomita, N. Yamachi, K. Iida, J. Yoshioka, M. Isono, M. Hirose, H. Nasu, H. Kameno, A. Kubo, R. Takahata, N. Kitai, H. Yamamoto, Y. Nakamura, N. Koshizuka, M. Murakami

研究成果: Article査読

11 被引用数 (Scopus)

抄録

We constructed a model superconducting magnetic bearing (SMB) module which will be installed for the 10 kW h class flywheel. The bearing is a radial type in that YBCO bulks are installed in the inner-stator and permanent magnet (PM) circuit in the outer-rotor. The PM circuit consists of NdFeB magnets and SPCC yokes. The maximum levitation force density of the superconducting bearing was 9.0 N/cm2 at 77 K. The rotational loss of the SMB was 8.03 W at 6000 rpm with the load of 838 N, which was mainly caused by an inhomogeneity in magnetic field generated from the PM circuit.

本文言語English
ページ(範囲)883-887
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
378-381
PART 1
DOI
出版ステータスPublished - 2002 10 1
外部発表はい

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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