Non-inductive control of permanent magnet synchronous motor based on linear active disturbance rejection control

At present, in the speed control algorithm of permanent magnet synchronous motor, PID control algorithm is widely used, but there are problems such as overshoot and insufficient anti-interference ability. Active disturbance rejection control continues the advantages of PID control that does not depend on the model, and has good adaptability and anti-interference ability. Therefore, this paper designs and improves a new LADRC control method. Through modeling and simulation on Matlab / Simulink simulation software, the effectiveness of the scheme under complex operating conditions of motor operation is verified. The simulation results show that compared with the traditional extended state observer, the improved extended state observer has higher tracking ability and observation accuracy, stronger anti-noise ability of the system, and the speed disturbance suppression effect and response speed are improved.