Research on PMSM Speed Control based on Active Disturbance Rejection Control

Abstract

In current permanent magnet synchronous motor (PMSM) control systems,the traditional PI algorithm is commonly employed for motor control and regulation.However,this approach suffers from issues such as prolonged settling time and excessive overshoot.To address these problems,a PMSM control design based on Active Disturbance Rejection Control (ADRC) is proposed.Furthermore,to enhance the motor's operational stability,disturbance rejection capability,and reduce control costs, three speed control strategies for PMSMs are designed based on Nonlinear Active Disturbance Rejection Control (NLADRC),Linear Active Disturbance Rejection Control (LADRC), and PI controllers.By constructing simulation models and conducting simulation experiments,it is demonstrated that,compared to the traditional PI algorithm and LADRC,the NLADRC-based strategy achieves a smoother speed curve,shorter settling time,and smaller overshoot,exhibiting superior real-time performance and robustness.This meets the requirements of industrial control applications,verifying that the NLADRC-based control strategy designed in this paper offers optimal motor response and tracking characteristics.The nonlinear active disturbance rejection control technology successfully enables closed-loop speed control of permanent magnet synchronous motors.