Approach to New Model Recovery Anti-windup Scheme with PID Controller

Abstract

This study describes and demonstrates a new Model Recovery Anti-Windup scheme with a proportional-integral-derivative (PID) controller. PID control has been widely used in the industrial processes. However, if a control system has an integral element, the windup effect causes control system performance deterioration. To solve this problem, it is necessary to add an anti-windup (AW) compensator to the control system. In the proposed method, PID controller gain and feedback gain of an AW filter are obtained simultaneously using a linear matrix inequality method. Simulation results prove the proposed method to be robust against external disturbances and to provide better performance than previous AW strategy.