基于齿槽转矩的永磁同步电主轴动态性能试验研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (20) : 216-222.

论文

李松生，杨焕钊，何国庆，张国烨，刘扬扬，郑志强

作者信息 +

Experimental study on dynamic performance of permanent magnet synchronous electric spindles based on cogging torque

LI Songsheng,YANG Huanzhao,HE Guoqing,ZHANG Guoye,LIU Yangyang,ZHENG Zhiqiang

Author information +

文章历史 +

摘要

永磁同步电机应用于高速电主轴，可以提高电主轴的效率、功率等，但永磁同步内装电机的齿槽转矩会引起电主轴的振动和噪声等问题。基于永磁同步电机理论分析了齿槽转矩的影响因素和抑制措施，针对分段对齐安装的直极转子与分段错位安装的斜极转子两种不同内装电机结构形式的永磁同步电主轴，分别对它们的齿槽转矩进行了理论分析和试验测试，在此基础上重点对它们的噪声、外壳振动以及转速的平稳性等动态性能进行了系统试验研究。结果表明，内装电机的齿槽转矩是影响电主轴振动、噪声的重要因素，在相同条件下，内装电机采用分段斜极转子可以大幅度削弱齿槽转矩的作用，有效减小电主轴运行过程中的振动和噪声水平，提高运行速度的稳定性。

Abstract

Permanent magnet synchronous motors (PMSM) used in high-speed electric spindle can improve the efficiency and power of electric spindles, but their cogging torque can cause vibration and noise problems. Based on the theory of PMSM, influencing factors and restraining measures of cogging torque were discussed. Aiming at the permanent magnet synchronous electric spindles (PMSES) with two different rotor structures of built-in PMSM, a step-skewed rotor and a non-skewed rotor, their cogging torques were analyzed theoretically and tested experimentally. On this basis, the dynamic performances of their noise, vibration and speed stability were emphatically studied. The results show that the cogging torque of built-in PMSM is an important factor affecting the vibration and noise of PMSES. Under the same conditions, the step-skewed rotor structure can effectively weaken the cogging torque of PMSES, reduce the vibration and noise, and improve speed stability.

导出引用

李松生，杨焕钊，何国庆，张国烨，刘扬扬，郑志强. 基于齿槽转矩的永磁同步电主轴动态性能试验研究[J]. 振动与冲击, 2020, 39(20): 216-222

LI Songsheng,YANG Huanzhao,HE Guoqing,ZHANG Guoye,LIU Yangyang,ZHENG Zhiqiang. Experimental study on dynamic performance of permanent magnet synchronous electric spindles based on cogging torque[J]. Journal of Vibration and Shock, 2020, 39(20): 216-222

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