关键词: 永磁同步电机, 模型预测控制, 多电压矢量

Abstract:

To improve the dynamic performance of motor control and reduce the current and flux ripple, combined with the advantages of field oriented control and direct torque control, a predictive control model of PMSM based on multi voltage vector was proposed. Using current state equations and two order Euler method predict the stator current, and the optimal switching state was obtained by the objective function. The simulation platform was built to compare the speed response, the current and flux ripple under different control method. Simulation results show that the proposed control strategy has the advantages of fast response, small current,flux ripple and good control effect.

Key words: permanent magnet synchronous motor, model prediction control(MPC), multi voltage vector