Power Electronics and Power Drives

In some demand high reliability fields, multi-phase permanent magnetsynchronous motor receiving more and more attention, due to its good fault-tolerantoperation ability. Therefore, multiphase PMSM is gradually becoming a hotspot incurrent research of motor.In this paper, … . The characteristics of openphase operation are in-depth researched. The purpose of the paper is to find out effectivefault-tolerant control strategies, ensures five phase PMSM can operate stably when itappears one phase open-circuit fault and two phases open-circuit fault. The organizationof this study is as follows:First, according to Fourier decomposition, it can get the winding function of fivephase windings and the expression of five phase current function, and then,