[关键词]
[摘要]
针对电动自行车用磁通切换电机齿槽转矩大的问题,依据槽极配合原理,设计并对比了12槽10极和12槽11极2台电机。有限元仿真结果表明,12槽11极电机的转矩脉动仅为12槽10极的16.6%,通过转子分段斜极方式进一步减小其齿槽转矩,同时分析转子斜极角度对电机转矩性能的影响。研究结果表明,斜极优化后的12槽11极磁通切换电机转矩脉动仅有2%,且输出转矩能够满足电动自行车日常行驶动力需求。
[Key word]
[Abstract]
To solve the problem of cogging torque of the flux-switching machine for electric bicycles, two machines with 12 slots/10 poles and 12 slots/11 poles are designed and compared based on the slot-pole matching principle. The torque ripple of the 12-slot/11-pole machine is only 16.6% of that of the 12-slot/10-pole machine. The cogging torque is further reduced by the rotor segmented skew pole method. The influence of the rotor skewed pole angle on the torque performance is analyzed. The simulation results show that the torque ripple of the 12-slot/11-pole flux-switching machine with the optimization of the skewed pole is only 2%, and the output torque can meet the daily driving power demand of the electric bicycle.
[中图分类号]
[基金项目]
中科院"百人计划"C类项目(2017-123)