Single closed-loop active disturbance rejection control strategy of permanent magnet synchronous motor based on compensation function

抄録

To improve the performance of permanent magnet synchronous motor (PMSM), a single closed-loop active disturbance rejection control strategy of permanent magnet synchronous motor based on compensation function is proposed in this paper. Firstly, a single closed-loop linear active disturbance rejection controller is designed to reduce the difficulty of controller parameter tuning. Secondly, the control effect of the active disturbance rejection control method is optimized by combining the compensation function observer (CFO) with the linear active disturbance rejection control (LADRC), and the current limiting control link is designed to ensure that the motor works within the current constraint. Finally, the stability analysis is carried out, and the control strategy is simulated and the prototype experiment is carried out. The results show that compared with the traditional LADRC, the improved method has a simple control system structure, strong anti-interference ability to load and parameter changes, and the controller adjustment is simple and easy to implement in engineering.