永磁同步电机低转矩脉动实现方法研究

Research on Low Torque Ripple of Permanent Magnet Synchronous Motor

在永磁同步电机的实际生产中,材料特性偏差与加工制造偏差的客观存在使得电机转矩脉动实际值与设计值产生偏差。在设计电磁结构尺寸参数设计值时,采用田口鲁棒设计方法进行正交试验优化设计,从而使得到的电机电磁结构尺寸参数设计值对一定限度内的材料特性偏差和加工制造偏差具有最大的容忍度,抑制其对永磁同步电机转矩脉动特性的影响。

In the actual production of permanent magnet synchronous motor(PMSM),the deviation between the actual value of torque ripple and the design value is caused by the objective existence of material characteristic deviation and manufacturing deviation.In the design of electromagnetic structure dimension parameters,Taguchi robust design method is used for orthogonal test optimization design,so that the obtained electromagnetic structure size parameter design value has the maximum tolerance for the material characteristic deviation and manufacturing deviation within a certain limit,and the influence on the torque ripple characteristics of permanent magnet synchronous motor is suppressed.