关键词: 工业机械, 内嵌式永磁同步电机, 田口法, 转矩脉动

Abstract: To achieve a more stable output torque, an interior permanent magnet synchronous motor for the industrial machinery industry was designed. The Taguchi method was used to optimize the three optimization objectives of the motor output electromagnetic torque, radial electromagnetic force, and torque ripple using slot depth, magnet thickness, stack thickness, pole arc angle, and air gap length as optimization factors. Orthogonal experiments were conducted on the motor output electromagnetic torque, radial electromagnetic force and torque ripple. The finite element method was used to compare the motor before and after optimization. The results show that,while ensuring that the output torque remained unchanged, the radial electromagnetic force and torque ripple were reduced by 34. 1 % and 11. 4 % , respectively.

Key words: industry machinery, interior permanent magnet synchronous motor ( IPMSM), Taguchi method, torque ripple