Research on Decoupling Model Predictive Torque Control Strategy with Load Feedforward Compensation for PMSM

In this paper, a decoupling model predictive torque control strategy with load feedforward compensation for PMSM was designed, which could effectively overcome the problems about high computation complex, difficult to adjust the weight coefficient and poor dynamic response of traditional model predictive torque control. First of all, based on the decoupling predictive model of the PMSM, the ideal voltage vector was determined by the deadbeat principle, and the vectors selected were reduced from seven to two. Meanwhile, the weight coefficient was omitted by directly comparing the voltage vectors. Secondly, a sliding mode load observer was constructed, which compensates the speed regulator. Finally, the feasibility and superiority of the proposed strategy were verified by the simulations.