对永磁同步电主轴的齿槽转矩的分析  

Analysis of cogging torque of permanent magnet synchronous electrical spindle

作　　者：钟双双[1] 于慎波[1] 

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870

出　　处：《重型机械》2016年第4期25-29,共5页Heavy Machinery

基　　金：国家自然科学基金资助项目(51175350);沈阳市科技计划项目(F15-199-1-13)

摘　　要：永磁同步电主轴被广泛使用在各种高性能的速度和位置控制系统中,但为了保证其高质量的运行,应降低齿槽转矩。文章分析了齿槽转矩产生原因和削弱方法,提出了梯形磁体和阶梯磁体两种永磁体结构,研究其对永磁同步电主轴的齿槽转矩的影响。并运用Ansys对这两种永磁体结构的永磁同步电主轴进行仿真。最后针对仿真所得的数据,运用Matlab对其进行计算、分析和对比。结果表明,在不影响永磁同步电主轴平均转矩等运行性能的前提下,适当的梯形永磁体的倾斜角度和阶梯永磁体的阶梯高,会使齿槽转矩的最大值和基波的幅值降低。Permanent magnet synchronous electrical spindle （PMSES） is widely used in variety high-performance speed and position control systems. In order to ensure the high quality of the operation, cogging torque should be reduced. According to the producing causes and the reducing methods of cogging torque, this paper presents two kinds of permanent magnet structure, which are trapezoidal magnet and steps magnet. The effects of the two methods on cogging torque of PMSES are investigated. Then, the PMSES of two kinds of permanent magnet structure is simulated by Ansys. At last, the data of the simulation is calculated, analyzed and com- pared by using Matlab. The results show that the suitable tilt angle of trapezoidal magnet and the suitable ladder height of steps magnet can reduce the maximum cogging torque value and the value of the amplitude of fundamental harmonic under the condition of no affecting running performance of the PMSES, such as average torque.

关 键 词：永磁同步电主轴 齿槽转矩 梯形磁体 阶梯磁体 

分 类 号：TM351[电气工程—电机]