中文摘要：

介绍了永磁容错电机的工作原理和数学模型,给出了基于电压调制的转矩控制系统的算法和理论分析,包括了转矩控制算法和电压调制算法。建立了系统仿真模型,包括电机模型、故障诊断、转矩控制算法、电压调制算法和转速PI调节器五部分。仿真结果表明,基于电压调制的转矩控制系统能够实现故障前后转矩、转速性能基本不变。

英文摘要：

The model and principle of the fault tolerant permanent magnet motor was put forward and a torque control strategy based on voltage modulation was established,including torque control algorithm and voltage modulation algorithm.Simulation model was set up,which contains the motor model,fault diagnosis,torque control algorithm,voltage modulation algorithm and speed controller.Simulation results show that torque and speed characteristics under faulted conditions are as good as those of normal conditions.