关键词: 永磁同步电机, 增量式模型预测控制, 滑模扰动观测器, 滑模控制

Abstract: To improve the disturbance rejection capability and dynamic response of permanent magnet synchronous motors ( PMSM ) , an incremental model predictive current control strategy using a predefined-time sliding mode was proposed. To address the issue of parameter perturbations in the predictive model, a predefined-time sliding mode disturbance observer was designed to estimate disturbances within each control cycle. These estimated disturbance values
were fed forward to the controller for compensation, enhancing the system' s robustness to parameter variations. A sliding mode speed controller was designed based on predefined-time reaching law and integral sliding mode, and an extended state observer was introduced to estimate unknown disturbances in the controller to improve the tracking accuracy of the system. Simulation results verify the proposed control method's disturbance suppression and tracking capabilities.

Key words: permanent magnet synchronous motor ( PMSM ), incremental model predictive control, sliding mode disturbance observer, sliding mode control