关键词: 十五相感应电机, 多目标优化, 田口法, 转矩脉动

Abstract: Ship electric propulsion systems impose stringent requirements on the reliability and efficiency of propulsion motors. This paper presents the design of a fifteen-phase induction motor. Employing the Taguchi method,the air-gap length, split ratio,rotor slot opening width,stator slot opening width,and stator slot width were selected as optimization factors. With the objectives of maximizing electromagnetic torque,minimizing torque ripple,and minimizing comprehensive losses serving as the multi-objective optimization criteria, an orthogonal array experiment was constructed for parameter optimization,leading to the identification of an optimal set of motor structural parameters. The performance of the motor before and after optimization was compared based on finite element analysis. The results demonstrate that the optimized motor exhibits a 3. 6% increase in electromagnetic torque, a 39. 8% reduction in torque ripple, and a 9. 8% reduction in comprehensive losses.

Key words: fifteen-phase induction motor, multi-objective optimization, taguchi method, torque ripple