基于定子磁障的分数槽集中绕组永磁同步电机应用设计与分析

分数槽集中式绕组（FSCW）存在谐波含量大的缺点，易引起定转子铁心损耗和振动噪声问题，限制了其在高端领域的应用。以采用FSCW的12槽14极永磁同步电机(PMSM)为研究对象，使用有限元软件进行仿真，分析定子非绕线齿中的磁障对磁动势谐波、电磁转矩、铁心损耗及径向电磁力的影响，并与传统永磁电机进行对比。仿真结果表明，采用定子磁障的电机能够有效降低绕组磁动势低次谐波，1、3、5次谐波分别下降了87%、84%和30%，铁心损耗减小了21.1%，低阶径向电磁力减小了20%以上，实现了对噪声和振动的有效抑制。

Application Design and Analysis of FSCW PMSM Based on Stator Flux Barrier

The fractional slot concentrated windings (FSCWs) lead to the disadvantage of large harmonic content, which can easily cause stator and rotor core loss and vibration and noise problems, and limit the application of FSCW in high-end fields. Based on a 12-slot 14-pole permanent magnet synchronous motor (PMSM) with FSCW, the finite element software is used to simulate and analyze the effect of flux barriers in the stator non-wound teeth on magnetomotive force harmonics, electromagnetic torque, core loss and radial electromagnetic force, and compare the motors with and without stator flux barriers. The simulation results show that the motor using stator flux barriers can effectively reduce the low-order harmonics of the winding magnetomotive force. The 1st, 3rd and 5th harmonics are reduced by 87%, 84% and 30%, respectively, and the core loss is reduced by 21.1%. The lower-order radial electromagnetic force is reduced by more than 20%. The noise and vibration are effectively suppressed.