磁悬浮永磁同步电动机的电磁力密度波及振动噪声研究  

Research on Electromagnetic Force Density and Vibration Noise of Magnetic Suspension Permanent Magnet Synchronous Motor

作　　者：陈天毅[1] 竺志大[2] 曾励[2] 杜立强[1] CHEN Tian-yi;ZHU Zhi-da;ZENG Li;DU Li-qiang(China Aerodynamics Research and Development Center,Mianyang Sichuan 621000,China;Shool of Mechanica Engineering,Yangzhou University,Yangzhou Jiangsu 222125,China)

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]扬州大学机械工程学院,江苏扬州222125

出　　处：《组合机床与自动化加工技术》2021年第6期53-58,共6页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：科技部重点研发计划项目(2016YFD0700903);国家自然科学基金(51375427)。

摘　　要：磁悬浮永磁同步电动机具有无机械摩擦和磨损,可以达到长寿命的高速或超高速运行,但电动机工作时需要不停地对磁悬浮电磁合力进行抗负载干扰调节,由此产生的电磁振动和噪声也比常规永磁同步电动机大很多,不可忽视。提出一种开口圆弧段定子绕组的永磁同步电动机,由4个这种电动机并联悬浮支承同一转子并驱动其旋转构成整体的磁悬浮永磁同步电动机;针对圆弧定子绕组式的磁悬浮永磁同步电动机进行电磁振动噪声研究,建立电动机气隙磁场及电磁力密度波的分布模型,基于电磁力密度波优化电动机绕组参数,并对电动机振动和噪声进行仿真研究。通过仿真结果可知,优化后的电动机在保证电磁性能的前提下其振动噪声也降到了合理水平。The magnetic levitation permanent magnet synchronous motor has no mechanical friction and wear,and can achieve long-life high-speed or ultra-high-speed operation.However,when the motor works,it needs to constantly adjust the magnetic levitation electromagnetic force to resist load interference,resulting in electromagnetic vibration and noise much larger than the conventional permanent magnet synchronous motor,which can not be ignored.In this paper,a permanent magnet synchronous motor with open circular arc section stator windings is presented.Four such motors are suspended in parallel to support the same rotor and drive its rotation to form a whole magnetically suspended permanent magnet synchronous motor.The electromagnetic vibration and noise of magnetic suspension permanent magnet synchronous motor with circular arc stator winding is studied.The distribution model of air gap magnetic field and electromagnetic force density wave is established.Based on the electromagnetic force density wave,the motor winding parameters are optimized,and the motor vibration and noise are simulated.The simulation results show that the vibration and noise of the optimized motor are also reduced to a reasonable level while the electromagnetic performance is guaranteed.

关 键 词：磁悬浮 同步电动机 电磁力密度 优化 振动噪声 

分 类 号：TH16[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]