Design of 6-slot inset PM bearingless motor for high-speed and higher than 100kW applications
Design of 6-slot inset PM bearingless motor for high-speed and higher than 100kW applications
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适用于高速和 100kW 以上应用的 6 槽嵌入式永磁无轴承电机设计
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
A. Chiba
中科院分区：
文献类型：
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作者：
R. Jastrzebski;P. Jaatinen;O. Pyrhönen;A. Chiba
本文研究了高速大功率无轴承电动/发电机的优化设计。由于没有单独的悬浮绕组，除了电机绕组和齿线圈布置之外，可以实现紧凑且轴向短的致动器。比较了表面PM和插入PM转子几何形状。具有独立轴向主动磁轴承的双无轴承解决方案提供6自由度自轴承电机系统，适用于泵、压缩机和鼓风机应用，具有相当大的负载和各个方向的精确间隙控制。扭矩和悬浮径向力都是由叠加的轴承和电机电流引起的。采用有限元法和时间步进仿真研究了电机和悬架性能的优化设计。
This paper presents design optimization of high-speed and high-power bearingless motor/generator. Because of absence of separate suspension windings, in addition to the motor windings, and tooth coil arrangement a compact and axially short actuator can be achieved. A surface PM and inset PM rotor geometries are compared. The twin bearingless solution with separate axial active magnetic bearing delivers 6 degrees of freedom self-bearing motor system suitable for pumps, compressors and blower applications with considerable loads and precise clearance control in every direction. Both torque and suspension radial forces are induced with superimposed bearing and motor currents. Optimal design in terms of motor and suspension performances is investigated using finite element method and time stepping simulations.