低压变频电机轴电流解决方案的对比分析及选择

Comparative Analysis and Selection of Shaft Current Solutions of the Low-voltage Inverter Motor

根据变频电机轴电流的来源,对目前比较常见的轴电流现象提出不同的解决方案,分别采用堵和疏两种方法防止轴电流的产生。采用不同方案对同一台电机进行轴电压测试,得到防止轴电流的有效测试数据及结论。

According to the sources of inverter motor shaft current,different solutions are proposed for the common shaft current phenomenon,two methods are used to prevent the shaft current,that is the method of blocking or sparing.Shaft voltage tests for the same motor using different solutions are performed,to obtain the effective test data and conclusions to prevent from the shaft currents.