为了设计出起动性能好，运行更加稳定的V形内置式永磁同步电机，通过改善空气隔磁槽结构的方法对空载反电势、气隙磁密、齿槽转矩、转矩脉动进行优化。将空气隔磁槽几何参数作为待优化变量，采用拉丁超立方抽样算法进行多目标优化，得到最优参数组合。优化后齿槽转矩下降了45%，转矩脉动下降了4.4%，电磁转矩提升了5.2%。优化结果理想，验证了该永磁同步电机优化方案的合理性。

In order to design a V-shaped built-in permanent magnet synchronous motor with good starting performance and more stable operation, the no-load back electromotive force （EMF）, air gap magnetic density, cogging torque and torque ripple are optimized by improving the structure of air magnetic isolation tank. Taking the geometric parameters of the air magnetic isolation tank as the variables to be optimized, the Latin hypercube sampling algorithm is used for multi-objective optimization to obtain the optimal parameter combination. After optimization, cogging torque decreased by 45%, torque ripple decreased by 4.4%, and electromagnetic torque increased by 5.2%. The optimization result is ideal, verifying the rationality of the optimization scheme for the permanent magnet synchronous motor.

国家自然科学基金（51877101）