关键词: 永磁同步电机, 自抗扰控制器, PID控制器, 转速环控制, 电流环控制

Abstract: By combining the control mechanism of ADRC with the mathematical model of PMSM, a new servo system based on ADRC current loop controller and speed loop controller was designed to replace the traditional PID controller. The ADRC controller improved the anti-load disturbance ability of the system, improved the robustness and control accuracy of the system, and effectively suppressesed the generation of current harmonics. The simulation results showed that compared with the traditional PID control servo system, the system had fast response speed, small overshoot and high control accuracy when the load torque changed. When the parameters of the motor changed, the system regulation was almost unaffected and had strong robustness.