日本機械学会論文集
Online ISSN : 2187-9761
機械力学,計測,自動制御,ロボティクス,メカトロニクス
IPM型5軸制御セルフベアリングモータの小型化とコギングトルク特性改善に関する研究
松田 健一熊谷 渉近藤 良増澤 徹
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2015 年 81 巻 827 号 p. 14-00567

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5-DOF self-bearing motor possesses the functions of a motor, two radial active magnetic bearings (AMBs), and an axial AMB. It is possible to downsize the AMB system while still maintaining a high level of support performance. In a 5-DOF self-bearing motor, the IPM rotor generates bias fluxes in not only the radial direction but also in the axial and tilt directions without any side surface permanent magnets. However, cogging torques are inherently generates by the magnetic flux flow in a IPM rotor. The proposed flux recovery-type permanent magnets configuration was analyzed using the 3-dimensional finite element method. The results show a significant reduction of the cogging torques and an improvement to motor efficiency.

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