Fault-tolerant control of PMSM drive unit

since the Fuel-Cell Vehicle's demonstration in the public transport, its fault diagnosis and fault tolerant control strategy become more and more important. This paper studies on the PMSM drive of FCV and presents a sensorless control algorithm in the fault mode based analytical redundancy. Simulation analysis and experiment verification are presented to compare the control algorithm using Expanded Kalman Filter (EKF) and Phase Locked Loop.