Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system

Takumi Ichihara, Koji Matsunaga, Makoto Kita, Izumi Hirabayashi, Masayuki Isono, Makoto Hirose, Keiji Yoshii, Kazuaki Kurihara, Osamu Saito, Shinobu Saito, Masato Murakami, Hirohumi Takabayashi, Mitsutoshi Natsumeda, Naoki Koshizuka

研究成果: Article査読

62 被引用数 (Scopus)

抄録

Radial type superconducting magnetic bearings have been developed for a 10 kWh-class flywheel energy storage system. The bearings consist of an inner-cylindrical stator of YBCO bulk superconductors and an outer-rotor of permanent magnets. The rotor is suspended without contact via the pinning forces of the bulk superconductors that are arranged such that the c-axis of each superconductor is aligned parallel to the radial direction of the cylinder. In this paper, we describe the implementation of the stator part and report the SMB test results, namely that the rotor was successfully rotated at up to 7,500 rpm. Thus we succeeded in energy storage of 2.24 kWh.

本文言語English
ページ(範囲)2245-2248
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
15
2 PART II
DOI
出版ステータスPublished - 2005 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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