永磁交流伺服电动机转矩波动测试装置

Torque ripple test device of permanent magnet AC servo motor

在永磁交流同步电动机的某些应用场合,如数控机床、加工中心及航天航空工程等,要求电动机能够在低速时输出较大的转矩且能平稳运行,电动机的低速平稳性直接影响因素是转矩波动。导致转矩波动的因素较多,既和电动机本体设计、电动机结构和加工工艺有关,也与运行方式有关,甚至还有驱动控制器方面的因素。因此在研发测试过程中该参数有测试的必要性。根据在广州数控设备有限公司的实际应用,对所构建的这种永磁伺服电动机转矩波动测试装置进行了详细论述。通过实际应用,验证了该套装置的测试数据与理论设计值基本一致,系统地阐述了所述测试装置的实用性与可行性。

In some applications of permanent magnet synchronous AC motor,such as NC machine tools,machining center and aerospace engineering,etc.,require motor can output large torque at low speed and can run smoothly,the stability of the motor directly influence factor is the torque ripple. Factors leading to torque ripple are more,both related to ontology and motor design,motor structure and processing technology,also related to the operation mode,and even drive controller factors. So in the R D and testing process,this parameter is necessary to be tested. According to the practical application of GSK CNC Equipment Co.,Ltd. in Guangzhou,this paper describes the building permanent magnet servo motor torque fluctuation test device in detail. Verified by practical application,this set of device test data and the theoretical design value,systematically expounds the practicability and feasibility of the test device described in this article.