摘要
齿槽转矩是由转子与定子齿间电磁力的切向分量所构成。齿槽转矩的变化引起转矩脉动,影响永磁同步电主轴稳定性。不同的转子表面结构,会引起气隙的不均匀,影响气隙磁场分布,导致磁导发生较大的变化,进而影响转矩脉动的大小。对永磁同步电主轴进行了有限元仿真分析,通过改变转子表面结构减小了永磁同步电主轴的转矩脉动。结果表明:合理设计内置式永磁同步电主轴的转子表面结构,可以有效地减小转矩脉动对电主轴的影响,提高系统的工作精度,并且不会减小额定转矩。
The cogging torque came from tangential component of electrical magnetic force between rotor and stator. The various cogging torque caused torque ripple,which affected the stability of permanent magnet synchronous electrical spindle（ PMSES）. Difference rotor surface structure could lead to uneven air gap,it affected distribution of air gap magnetic field,and changed magnetic permeance even further torque ripple value.This paper obtained finite element simulation analysis of PMSES,torque ripple was reduced by changing the rotor surface structure. Simulation results show that reasonable designing rotor surface structure of the PMSES could effectively reduce the influence of torque ripple on the spindle,which improved the system working accuracy,and didn＇t decrease the rated torque.
出处
《重型机械》
2016年第2期29-32,共4页
Heavy Machinery
基金
国家自然科学基金项目(51175350)
沈阳市科技计划项目(F15-199-1-13)
关键词
齿槽转矩
转矩脉动
永磁同步电主轴
转子表面结构
cogging torque
torque ripple
permanent magnet synchronous electrical spindle
rotor surface structure
