Research of Nonlinear PID Control Method for Time Delay Systems
A nonlinear PID control method based on Smith predictor is presented in this paper to control the time delay systems. This method combines the Smith predictor with nonlinear controller. And the simulation study had been done for a first-order time-delay system. The results show that this method offer good static and dynamic characteristics, at the same time its disturbance-rejection and robustness are better.
W. B. Liu and M. X. Wang, "Research of Nonlinear PID Control Method for Time Delay Systems", Applied Mechanics and Materials, Vols. 44-47, pp. 3839-3843, 2011