FOC control system of permanent magnet synchronous motor based on fuzzy active disturbance rejection control

Abstract

Aiming at the problems of overshoot, weak disturbance resistance ability and poor adaptive ability of permanent magnet synchronous motor using PI control algorithm. Firstly, the field oriented control (FOC) model of permanent magnet synchronous motor is analyzed. Secondly, based on the active disturbance rejection control and fuzzy control principle, the speed loop controller is improved, and the fuzzy active disturbance rejection control algorithm is designed. The control algorithm preserves the advantages of active disturbance rejection control, and realizes the online tuning function of active disturbance rejection control parameters, which improves the adaptive ability of the system. Finally, the simulation experiment is carried out on the MATLAB / Simulink platform, and the results show that the fuzzy active disturbance rejection control algorithm has the characteristics of no overshoot, high control accuracy and strong adaptive ability.