摘要：以一台10极定子30槽表面式永磁同步电动机为例，分别在永磁体下方的转子铁心和永磁体底部开设不同形状、数量和位置的辅助槽，分析各类辅助槽对于电机带载运行时的转矩脉动和平均转矩的影响，总结转矩脉动随辅助槽大小和位置的变化规律。有限元分析研究表明，开设合理的转子铁心辅助槽和永磁体辅助槽可以有效地削弱转矩脉动。
关键词：永磁同步电机；转矩脉动；辅助槽；表面式永磁转子

Abstract: Taking a 10pole 30statorslot surface permanent magnet synchronous motor as an example, auxiliary slots with different shapes, numbers and positions are set up on the rotor core beneath the magnets and on the bottom of the magnets respectively. Influence of the auxiliary slots on the onload torque ripple and the average torque was analyzed with finite element method, showing that proper auxiliary slots on the rotor core and on the magnets can effectively reduce the torque ripple.
Key words: permanent magnet synchronous motor; torque ripple; auxiliary slot; surface permanent magnet rotor