円筒磁石可動形コアレススラスト磁気軸受の設計と性能評価

  • 朝間 淳一
    東京理科大学 理工学部 電気電子情報工学科
  • 千葉 明
    東京理科大学 理工学部 電気電子情報工学科
  • 深尾 正
    モーターソリューション(株)

書誌事項

タイトル別名
  • Design and Performance Evaluation of a Coreless Thrust Magnetic Bearing with a Cylindrical Permanent Magnet Mover
  • エントウ ジシャク カドウケイ コアレススラスト ジキ ジクウケ ノ セッケイ ト セイノウ ヒョウカ

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抄録

A thrust magnetic bearing using a magnetic disk with a large diameter is usually employed in five-degrees-of-freedom controlled magnetic bearings and bearingless drive systems. However, the large disk may result in a complicated assembly process and increased peripheral velocity, which results in the limitation of a maximum rotational speed. In this paper, a novel thrust magnetic bearing using a cylindrical permanent magnet (PM) mover without the large disk has been proposed, designed, and tested. Coreless coil stators are employed for the reduction of radial attractive force that may cause disturbance to the bearingless drive system. To enhance the thrust force, iron disks with the same diameter of the PM mover are attached to the rotor. The fabricated actuator can generate a desired thrust force with less disturbance to the bearingless motor.

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