永磁同步推进电机电磁振动分析

发布时间：2018-11-21 21:23

【摘要】：依据Maxwell应力方程推导了永磁同步电机径向电磁力的解析表达式,分析归纳了电机内各阶次、各频率径向电磁力的来源。以一台45槽10极永磁同步推进电机为例,分别建立了电机电磁有限元模型和结构有限元模型,并进行了模态分析;将电磁有限元模型中得到的径向电磁力耦合到结构有限元模型中,对电机进行了电磁振动谐响应分析;最后将样机实测加速度频谱与有限元仿真结果进行对比,验证了径向电磁力解析式及电磁振动有限元仿真结果的正确性。
[Abstract]:According to the Maxwell stress equation, the analytical expression of radial electromagnetic force of permanent magnet synchronous motor is derived, and the internal order of the motor and the source of radial electromagnetic force of each frequency are analyzed and summarized. Taking a 45-slot 10-pole permanent magnet synchronous propulsion motor as an example, the electromagnetic finite element model and the structural finite element model of the motor are established, and the modal analysis is carried out. The radial electromagnetic force obtained from the electromagnetic finite element model is coupled to the structural finite element model, and the harmonic response of the electromagnetic vibration of the motor is analyzed. Finally, by comparing the measured acceleration spectrum of the prototype with the finite element simulation results, the correctness of the radial electromagnetic force analytical formula and the finite element simulation results of the electromagnetic vibration are verified.
【作者单位】： 天津大学智能电网教育部重点实验室;北京精密机电控制设备研究所;
【分类号】：TM341
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本文编号：2348288