Experimental and numerical evaluation of rotation speed degradation of radial type superconducting magnetic bearing

Kazuyuki Demachi, Akira Miura, Tetsuya Uchimoto, Kenzo Miya, Hiromasa Higasa, Ryoichi Takahata, Hiroo Kameno

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The degradation of levitation force and rotation speed is one of the most significant problems for the practical use of superconducting magnetic bearing (SMB) for flywheel energy storage system. The degradation are called the rotation losses caused by the AC magnetic field due to the inhomogeneous distribution of magnetic flux density of the permanent magnet (PM) rotor. In this research, our simulation method was improved so that the eddy current flowing in the cryostat around the superconductor was taken into account. The dependency of the rotation losses of radial type SMB with cryostat was evaluated by this new simulation method concerning the amplitude of inhomogeneous component of PM rotor's field.

本文言語English
ページ(範囲)882-885
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
357-360
DOI
出版ステータスPublished - 2001 8
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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