Valve Positioner Opening Control Based on Variable Universe Fuzzy Logic ADRC

In view of the high requirements for valve control accuracy and stability in industrial process control, Aiming at the high requirements for valve control accuracy and stability in industrial process control, a valve opening control scheme based on variable universe fuzzy auto disturbance rejection is proposed. Use AMESim and Simulink for joint simulation. First, build the controlled object model in AMESim, and then import the established controlled object model into the Simulink module of the active disturbance rejection control system. The expansion factor is introduced to improve the fuzzy control performance. Through fuzzy control Set the parameters of auto disturbance rejection controller. The simulation results show that the variable universe fuzzy auto-disturbance rejection controller has strong anti-interference ability and good adaptability, can quickly and stably reach the preset control opening, and can achieve precise and stable control of the valve opening.