中文摘要：

对于超大型的精密测量设备,传统的传动方式已经不能满足实际应用需求。介绍了一种基于弧形永磁同步电机驱动方式。为了解决弧形永磁同步电机力矩波动较大的问题,采用有限元分析的方法来仿真分析电机的边端力矩和齿槽力矩。通过调整电机定子铁心的圆周方向的长度,电机的边端力矩从优化前的5.1 N·m下降到1.6 N·m;通过采用分数槽结构的方法,电机的齿槽力矩从6.0 N·m下降到0.67 N·m。仿真和实验结果表明电机的力矩波动从原来的4%下降到1.8%,证明该种方法的有效性。

英文摘要：

For the traditional motor can ＇ t meet the requirment of the super test instrument, a kind of arc permanent magnet synchronous motor （arc PMSM） was introduced. The cogging force of the arc PMSM was used. Finite element analysis （FEA） was carried out to analyze the cogging force of arc PMSM by using planar cross sections. By adopting optimization methods, such as adjusting the length of stator and adopting fractional slot, the end cogging force decreased from 5.1 N · m to 1.6 N · m, and the slot cogging force decreased from 6. 0 N ·m to 0. 67 N· m accordingly. Both simulation and experimental results show that the total toque toque ripple reduced from 4% to 1.8%.