Improvement of Active Axial Force at Flux Intensifying Region in Single-Drive Bearingless Motor

カテゴリ: 全国大会

論文No: 5-191

グループ名: 【全国大会】平成30年電気学会全国大会論文集

発行日: 2018/03/05

タイトル(英語): Improvement of Active Axial Force at Flux Intensifying Region in Single-Drive Bearingless Motor

著者名: Theeraphong Srichiangsa(Tokyo Institute of Technology),Hiroya Sugimoto(Tokyo Institute of Technology),Akira Chiba(Tokyo Institute of Technology)

著者名(英語): Theeraphong Srichiangsa(Tokyo Institute of Technology),Hiroya Sugimoto(Tokyo Institute of Technology),Akira Chiba(Tokyo Institute of Technology)

キーワード: ベアリングレスモータ,シングルドライブベアリングレスモータ,1DOF,能動軸支持力,強め界磁領域

要約(日本語): This paper presents a design and enhancing active axial force at flux intensifying region in a single-drive bearingless motor. The single-drive bearingless motor design requires only one 3-phase inverter and one displacement sensor. The active axial force (Fz) and Torque (T) are generated by d-and q-axis currents, respectively. Radial and tilting directions are passively stabilized by the repulsive passive magnetic bearings (RPMB). Owing to magnetic saturation in stator teeth at flux intensifying region lead to a non-linearity in current-force factor. Consequently, the motor design was not able to overcome the target axial force suspension. The proposed design, the stator teeth are tapered and taper angle (γ) including the width of tip stator teeth are optimized to tackle the saturation problem. Finally, the motor design has been achieved the target axial force and the rotor can start up from the touch-down condition. Evaluation of the proposed design is carried out by Three-Dimensional Finite Element Method (3D-FEM) analysis.

原稿種別: 英語

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