Aiming at the defects of the large calculation,complex fault-tolerant control strategy,and large pulsation of motor torque in the application of the traditional model predictive current control of a six-phase fault-tolerant per-manent magnet rim-driven motor,this paper presents a model predictive current control method based on a six-phase stationary coordinate system.Under a fixed sampling frequency,a set value of a six-phase stator current is calculated using the rotor position,rotation speed at the present moment,and the fault-tolerant control strategy.Further,the six-phase current is predicted independently in two rounds under the six-phase stationary coordinate system.By opti-mizing the value function,the optimal switch combination for the six-phase H-bridge inverter circuit is determined to realize model predictive current control for the six-phase fault-tolerant permanent magnet rim-driven motor.The re-sults show that the proposed model predictive current control method based on a six-phase stationary coordinate system has such advantages as its being simple and fault-free and the small pulsation of the motor torque.In addition,the method considered the fast dynamic response feature of traditional model predictive current control algorithms.
维普
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