关键词: 永磁同步电机, 模型预测控制, 有限控制集, 参数畸变, 转速响应, 动、静态性能

Abstract: When the predictive control system of permanent magnet synchronous motor ( PMSM) works in a complex environment such as high temperature, the motor parameters such as stator resistance, d and q axis inductance and permanent magnet flux linkage are often distorted due to the slot effect, edge effect, saturation effect and external interference. To solve the above problems, the finite control set model predictive current control ( FCS-MPCC) model of PMSM was established, and the influence of different parameter distortion was analyzed, and the predicted current deviation of d and q axis caused by the distortion was calculated. The parameter distortion range was partitioned and applied to the model in turn. Under different distortion degrees, the influence of different parameter distortion on dynamic and static performance of PMSM, including d and q axis current, predicted current deviation, electromagnetic torque and rotational speed, was analyzed experimentally

Key words: permanent magnet synchronous motor ( PMSM ), model predictive control ( MPC ), finite control set ( FCS), parameter distortion, speed response, dynamic and static performance