Model Predictive Direct Torque Control for PMSM Drives in M–T Frame

Abstract

Model predictive control (MPC) is attracting interests due to many of its advantages, such as fast dynamic response and no need for modulators. However, the changes of system parameters affect the accuracy of the prediction results. Hence, this paper proposes a novel Model Predictive Direct Torque Control (MP-DTC) method for permanent magnet synchronous motor (PMSM) drives in M-T frame, which is synchronized with the stator flux linkage vector. Thus, the entire control system for PMSM drives operates under the M–T coordinate system, which reveals an attractiveness of parameter insensitivity and simple calculation. The simulation and experiment result demonstrate the validity and effectiveness of the proposed control strategy.