A fault tolerant sensorless techniques for switched reluctance motor

A fault tolerant position estimation for Switched Reluctance Motor (SRM) is proposed in the paper based on relationship between inductance and rotor position. First, the particular position signal is obtained by comparing the real-time flux linkage with the particular position flux linkage, the position is estimated by the particular position signal. Second, the delay method is used based on inter-phase independence under the phase fault, the fault phase position is estimated by the normal phase the particular position signal. Finally, the experimental have been implemented in a 12/8 structure SRM prototype. The results show that the proposed methods are verified the correctness and feasibility.