多相电机容错控制策略综述

To objectively and comprehensively reflect the current research progress in the field of fault-tolerant control for multiphase machines and show better utilization potentiality of the control in high-power and high-reliability applications such as wind power generation, ship propulsion, rail transportation, and aerospace, related researches of fault tolerant control are analyzed, the post-fault steady-state analysis methods of multiphase machines are summarized, and the generation methods of the post-fault fault-tolerant reference current of multiphase machines are discussed in detail, including the fault-tolerant strategy based on invariant torque and the fault-tolerant strategy based on invariant magnetomotive force. The optimization methods and tracking methods of fault-tolerant current are introduced. The applications of direct torque control (DTC) and model predictive control (MPC) in fault-tolerant control strategy of multiphase machine are also introduced. The advantages and disadvantages of each control method are discussed. Finally, the above control technologies are summarized and prospected, and the development trend of fault-tolerant control technology for multiphase machine is analyzed, which may serve as reference for the development and follow-up research of multiphase machine and fault-tolerant control.