永磁行星齿轮电机设计及有限元分析

Design and Finite Element Analysis of Magnetic Planetary Gear Permanent Magnet Machines

本文针对智能机电系统所需的动力驱动系统,以节能与智能化为研究目的,设计出高性能的永磁行星齿轮电机,以提升运输动力系统输出功率。整体创新设计与非接触式电机传动概念除了可应用在电动汽车,也可拓展应用到机械臂、无人搬运车等行业。本文从永磁行星齿轮电机的参数优化设计角度,对其槽半径、定子槽宽、定子极靴的厚度、定子线圈匝数、定子外径详细分析,获得了优化后的磁齿轮传动机构参数,并根据根据有限元分析得出磁场分布,得出磁场合理性分析。最后加工永磁行星齿轮电机的样机,实验得出传递转矩性能。通过仿真结果和测量结果对比后,说明优化后的永磁行星齿轮电机的磁路是正确的,转矩满足设计要求,该类永磁行星齿轮电机为有效降低运输用动力系统体积与重量,提高续航能力提供了参考和应用价值。

This article investigated the optimal design of magnetic-planetary-gear permanent magnet(MPG-PM)machine.The key is to develop a design method for the pole shoe thickness,stator outer diameter and coil turns of the MPG-PM machine in such a way that the torque waveform is sinusoidal.The magnetic field distributions was solved by the finite element analysis according to the optimization results.A prototype of MPG-PM machine was used for exemplification in terms of the experiment performance requirement.Both the predicted and measured results were given to illustrate the proposed machine.The theory analysis and the experimental results show that the magnetic circuit of the MPG-PM machine was correct and the torque satisfy design requirements.It provides reference and application value for developing high performance and low-cost MPG-PM machine.