基于判据融合的异步电动机定子绕组匝间短路诊断

Diagnosis of stator winding inter-turn short-circuit fault for asynchronous motors based on criterion fusion

为解决定子绕组匝间短路故障诊断中常见异常运行工况干扰的问题,提出一种基于判据融合的异步电动机定子绕组匝间短路故障诊断方案。首先,考虑到故障特征之间的关联性,提出一种以电流特征为主、电压特征为辅的融合判据;然后,通过融合判据对定子绕组匝间短路故障及故障相进行诊断;最后,通过仿真实验证明了该方案的有效性。

To solve the interference problem of other common abnormal operating conditions in the diagnosis of the stator winding inter-turn short-circuit fault,a stator winding inter-turn short-circuit fault diagnosis scheme based on criterion fusion for asynchronous motors is proposed.First,considering the causal relationship between fault features,fusion criteria with current features as the main feature and voltage features as the auxiliary feature are proposed.Next,these fusion criteria are used to diagnose the stator winding inter-turn short-circuit fault and fault phase.Last,the effectiveness of the scheme is verified through simulation experiments.