Research on Position Control of Turntable Servo System Based on Active Disturbance Rejection Control
A position control method based on active disturbance rejection control is proposed to address the nonlinear and time-varying characteristics of the turntable servo system.Firstly,this paper establishes a mathematical model of the turntable servo system,and simplify the system transfer function model by equating the speed control to a first-order iner-tial link.Secondly,it designs an active disturbance rejection controller,studies second-order tracking differentiator,extended state observer,and error feedback control law.Finally,simulation research on the active disturbance rejection control algo-rithm is completed in MATLAB/Simulink and CODESYS,and verified on an experimental platform.The experimental results show that compared with PID controllers,the turntable servo system based on active disturbance rejection control has high position tracking accuracy,fast dynamic response speed,and good robustness.
active disturbance rejection controlturntable servo systemposition control