A trial manufacturing of 0.2kWh class flywheel rotor supported by superconducting magnetic bearing for energy storage system

• Takahata Ryoichi

  Koyo Seiko Co., Ltd.

• Higasa Hiromasa

  Shikoku Research Institute

• Ueyama Hirochika

  Koyo Seiko Co., Ltd.

• Miyagawa Yasukata

  Koyo Seiko Co., Ltd.

• Kameno Hironori

  Koyo Seiko Co., Ltd.

• Ishikawa Humihiko

  Shikoku Research Institute

Bibliographic Information

Other Title

• 超電導磁気浮上軸受支持0.2kWh級フライホイール電力貯蔵装置の試作
• チョウデンドウ ジキ フジョウ ジクウケ シジ 0.2kWhキュウ フライホイ

Abstract

A flywheel rotor whose a main shaft had two pieces of flywheel disk and one magnet was designed and manufactured. The flywheel was made of CFRP material which is light weight and has high tensile strength. The magnet was hooped by CFRP in order to prevent from centrifugal burst. The rotor was suspended by a superconducting magnetic bearing in axial direction and active magnetic bearings in radial direction. The superconducting magnetic bearing was made of Y Ba₂Cu₃O_7-x which had a strong pinning force. It was stably accelerated up to 16, 500rpm by a induction motor in a vacuum chamber and then its energy storage value was 176Wh. The rotor design, bearing and rotational properties of the rotor was discussed.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 117 (9), 1132-1138, 1997

  The Institute of Electrical Engineers of Japan

Keywords

• 超電導
• 磁気軸受
• 永久磁石
• フライホイール
• 電力貯蔵

Details

• CRID: 1390282679635444864
• NII Article ID: 10002725226
• NII Article ID: 10009825105
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.117.1132
• ISSN: 13488163
• ISSN: 09136339
• NDL BIB ID: 4284706
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4284706
• Web Site: http://www.jstage.jst.go.jp/article/ieejias1987/117/9/117_9_1132/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed