基于光电子封装的永磁直线电机结构优化仿真  

Structural Optimization Simulation of Permanent Magnet Linear Motor Based on Optoelectronics Packaging Platform

作　　者：谢凯[1,2] 周海波[1,2] 周振宇[1,2] 

机构地区：[1]中南大学高性能复杂制造国家重点实验室,湖南长沙410083 [2]中南大学机电工程学院,湖南长沙410083

出　　处：《计算机仿真》2016年第9期242-247,共6页Computer Simulation

基　　金：国家自然科学基金项目(51575534);湖南省自然科学基金项目(2015JJ4078)

摘　　要：在光电子封装运动平台使用的直线电机推力波动优化研究中,直线电机在低速运动、精确定位时推力波动大,产生振动和噪音,严重影响平台的运行精度。针对上述问题,建立了电机模型进行电机空载气隙磁场分析,来降低直线电机的推力波动。同时,利用Ansoft软件对不同结构形式电机的推力波动和平均推力进行了对比分析,对永磁体形状和绕组形式进行优化,最终选择弧形永磁体和叠放绕组结构形式。结果表明:采用弧形永磁体和叠放绕组结构形式的永磁直线电机能够减少因磁场波形畸变而造成的推力波动大的问题,提高了电机推力的优化。In the research of linear motor thrust ripple used in optoelectronics packaging platform, the big thrust ripple can lead to vibration and noises, which has a serious influence on the platform precision when linear motor runs in low speed movement and precise positioning. In view of the above problems, a motor theory model was set up to analyze the no-load air-gap magnetic field of motor and reduce the linear motor thrust ripple. Meanwhile, the motor thrust ripple and average thrust with different structural forms were comparatively analyzed using the Ansoft software. The shapes of permanent magnet and winding styles were optimized. Eventually, the arc-shape permanent magnet with overlapping winding style was adopted. The simulation results show that the permanent magnet linear motor with the structure of arcshape permanent magnet and overlapping windings can effectively reduce motor thrust ripple caused by magnetic field waveform distortion.

关 键 词：永磁直线电机 推力波动 永磁体形状 绕组形式 

分 类 号：TH391.9[机械工程—机械制造及自动化]