Optimal pole change operation method of a six-phase pole change induction motor for electric vehicles

The authors have already proposed a six- phase pole change induction motor (six-phase PCIM) as a new drive method that uses a single winding-pole change method with a pole ratio of 2:1, and have carried out various studies. In this paper, it is clarified that the smooth pole change operation of the six-phase PCIM is possible under some conditions. In addition, the optimal pole change operation method for a given condition is recommended.