关键词: 永磁同步电机, 自抗扰控制, 滤波, 响应速度, 模型预测控制

Abstract:

An improved active disturbance rejection controller(ADRC) based on MPC for permanent magnet synchronous motor(PMSM) speed control system was presented. The model predictive control was used as the inner loop of the current, which reduced the stator current pulsation and improved the control precision of the system.The bandwidth of the ESO is usually limited by the existence of noise in the ADRC controller,therefore,the ESO can not track the total disturbance in real time. In order to reduce the effects of noise, a Kalman observer was designed to improve the performance of the ESO, which can estimate the load torque disturbance simultaneously. Combining the Kalman observer with the ESO,the performance of the ADRC controller can be greatly improved.The simulation and experiment results show the effectiveness of the method.

Key words: permanent magnet synchronous motor (PMSM), improved active disturbance rejection control (ADRC), wave filtering, response speed, model prediction control (MPC)