The constraint optimization approach for robust PID design in AVR system

摘要

A constraint optimization approach is discussed for estimating the proportional-integral-derivative (PID) controller gains used for an AVR system. A new evaluation function is given to ensure the less variation in the control signal input to the system without compromising the overall dynamic responses. The robustness of the system is guaranteed by imposing the maximum sensitivity in solving the optimizing problem. The proposed method ensures the better performance even in the presence of the uncertainties in plant parameters. The simulation studies are presented to validate the design method.