Abstract:In order to solve the difficult research points of sensorless starting and low-speed operation of switched reluctance motor (SRM) used by electric vehicle.A new sensorless control method based on space vector model of phase inductance for switched reluctance motor is presented in this paper.Three-phase inductance of SRM are computed by pulse injection at startup and low-speed drive operating two different operating states,and through the cosine functional relationship between space vector model of phase inductance and angle to realize the rotor angle estimation.The realization of this sensorless method is simple and reliable.Finally,the proposed sensorless scheme is verified by simulation and experiment.The results show that the proposed method can estimate the rotor position accurately and meet the requirements of low-speed sensorless operation of SRM.