Speed Control of Permanent Magnet Synchronous Motor Drives Based on Model Predictive Control

A control technique model for predicting the speed of permanent magnet synchronous motor is proposed in this paper in order to cut costs and fortify the stability and effectivity of motor drive, and some simple models of PMSM are employed in the MPC structure. In view of the crosscoupling electromotive force between the direct axis and the quadratic axis in the voltage equation, the dynamic model of PMSM, it is proposed to add a feedforward decoupler to achieve decoupling. The performance of the comparison between MPC with feedforward decoupling and without feedforward decoupling has been carried out, and the feasibility of the proposed scheme is verified by scientific and rigorous simulation experiments. The results proved that the PMSM with the speed and current MPC controller with feedforward decoupling has superior transient response. In addition, more accurate tracking performance has come true.

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