田口法在永磁同步电机优化设计中的应用

Application of taguchi method in optimum design of permanent magnet synchronous motor

为了改善电动汽车用永磁同步驱动电机的振动噪声,以降低永磁同步电机的转矩波动和齿槽转矩为优化目标、增大单位磁钢宽度的平均转矩和直轴电感为约束条件,选取"V"型转子磁极结构中永磁体槽的位置、尺寸和磁钢宽度等参数作为优化设计变量,在仿真实验中采用田口法设计,选出最优的参数组合方案。仿真结果表明:田口法优化后的相关性能相比于原机方案得到了全面提升,仿真结果验证了田口法在车用永磁同步驱动电机电磁性能优化设计中的有效性和实用性。

In order to reduce the vibration and noise of permanent magnet synchronous m-otor(PMSM) for electric vehicle,the position and size of permanent magnet slot and the width of permanent magnet in the V-type rotor pole structure are selected as optimal desi-gn variables, and Taguchimethod is used to reduce the torque fluctuation and coggingto-rque of PMSM as optimization objective, increase the average torque per width of magnet and theinductance of straight axis as constraints. In the simulation experiment, Taguchi method is used to design the optimal parameter combination scheme.The simulation resul-ts show that the optimized performance of Taguchi method is improved compared with theoriginal scheme.The simulation results verify the effectiveness and practicability of Taguc-hi method in the optimization design of electromagnetic performance of PMSM forelectricvehicle.