Study on method for fault diagnosis of squirrel cage induction motor based on Clarke transform

According to the analysis of the reference-frame transformation of AC machine, some shortcoming of the diagnosis ways of Park vector and Extended Park vector is pointed out in this paper, the ways of Clarke vector track recognition and Extended Clarke vector is presented, diagnose motor's familiar electrical fault by using of vector track recognition, and distinguish stator winding inter-turn short-circuit based on the idea of negative-sequence current. The simulation and experiment results show that this method is efficient and feasible.