Torque Density Improvement of a One Axis Actively Positioned Single-Drive Bearingless Motor
Torque Density Improvement of a One Axis Actively Positioned Single-Drive Bearingless Motor
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一轴主动定位单驱动无轴承电机的扭矩密度改进
DOI：
10.1109/ecce.2018.8557413
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
and Akira Chiba
中科院分区：
文献类型：
--
作者：
Theeraphong Srichiangsa;Hiroya Sugimoto;and Akira Chiba
提出了一种提高单轴主动定位单驱动无轴承电机转矩密度的设计方案。单驱动无轴承电机只需一台三相逆变器和一个位移传感器。主动轴向悬浮力和旋转扭矩分别由d轴和q轴电流产生。径向和倾斜转子运动通过由圆柱形永磁体制成的排斥性被动磁轴承被动地稳定。所提出的设计具有软磁复合材料的优点，该软磁复合材料具有独特的形状以容纳辅助绕组。发现这种布置提高了扭矩密度。
This paper proposes a novel design for improving torque density in a one-axis actively positioned single-drive bearingless motor. The single-drive bearingless motor requires only one unit of three-phase inverter and one displacement sensor. The active axial suspension force and rotating torque are generated by d- and q-axis currents, respectively. Radial and tilting rotor movements are passively stabilized by repulsive passive magnetic bearings which are made of cylindrical permanent magnets. The proposed design has an advantage of a soft magnetic composite which is uniquely shaped to accommodate the supplementary windings. This arrangement is found to enhance the torque density.