Model Predictive Direct Speed Control of Permanent Magnet Synchronous Motor based on Full Parameters Disturbance Observer

This paper presents an improved model predictive direct speed control (MP-DSC) based on full parameters disturbance observer(FPDOB) for permanentmagnet synchronous motor (PMSM) drives. Firstly, the analysis of parameter mismatches and the load disturbance on the Conventional MP-DSC is presented. Then, The FPDOB that can compensate for the disturbance caused by parameter mismatches, including the mechanical parameters and the electrical parameters is proposed. Finally, The Stability of FPDOB is proved by Lyapunov's direct method. The simulation results show that the proposed control method can achieve better dynamic performance and stronger robustness.