Abstract
Based on sliding mode control (SMC) method, a model predictive torque control (MPTC) strategy is proposed for permanent magnet synchronous motor (PMSM) systems. The mathematical model of PMSM system is built firstly. Then the SMC and MPTC are respectively designed, with the former being used to make the motor speed track its reference quickly and accurately while the latter being used to reduce the torque and flux ripples. Compared with conventional PI-based MPTC PMSM system, the designed system possesses better dynamical response behavior and stronger robustness in the presence of variation of load torque. The simulation results validate the feasibility and effectiveness of the proposed scheme.
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