MFA controller with tracking differentiator

The paper presents that by combining tracking differentiator with model-free adaptive controller(MFAC) and joining their advantages,it is possible to design a controller fit for such complicated systems as large-scale time delay system,time-variation system and strong coupling system.This controller realizes the fast and non-overshoot control on strong disturbance system and time delay system by arranging transitional process of tracking differentiator.The paper carries out a contrast emulation research between the MFAC with the tracking differentiator and the non-linear PID(proportional integral derivative)controller.The emulation result indicates that the merit of the MFAC with a non-linear tracking differentiator is suit to deal with the control problem of strong disturbance and time delay.