基于磁路法与有限元法对永磁同步电机的优化仿真  

Simulation of Permanent Magnet Synchronous Motor based on Magnetic Circuit Method and Finite Element Method

作　　者：江伟[1] 王亚文[1] 

机构地区：[1]广东工业大学自动化学院,广州510006

出　　处：《电力学报》2017年第2期147-151,共5页Journal of Electric Power

摘　　要：利用Ansoft软件中Rmxprt模块对一款设计的1.5kW纺织用的永磁同步电机进行磁路法分析与建模,然后生成2d模型,在Maxwell2d进行有限元仿真分析。针对有铁芯永磁电机存在的齿槽转矩问题,采用分布式扫描永磁体的极弧系数、磁极偏心距参数的方法,求解出合适的数值。接着对电机设计前后的气隙磁密进行对比分析,算出其反电动势的畸变率,检验优化设计的有效性。最后通过Ansys workbench进行噪声仿真对比优化前后的仿真结果,证明优化设计的合理性,为永磁同步电机的优化仿真提供思路。By using Rmxprt module in Ansoft software to analyze a 1.5 kW spinning permanent magnet syn- chronous motor （PMSM） and ifs modeled by the magnetic circuit method, and then generating 2D model and the finite element simulation analysis is carried out in Maxwell2d. According to the problems existing in the core of cogging torque of permanent magnet motor, using distributed scanning pole arc coefficient, permanent magnet pole eccentric distance parameter method, calculate the appropriate value. Then the air gap flux density for motor design before and after the comparative analysis, calculate the distortion of the back EMF of the rate of effective contrast test optimization. Finally, the simulation results of Ansys workbench are compared before and after the Acoustic optimization, which provides the ideas for the simulation of the permanent magnet motor.

关 键 词：永磁同步电机 齿槽转矩 气隙磁密 畸变率 噪声仿真 

分 类 号：TM341[电气工程—电机]