A Class of Disturbance-estimated Sliding Mode Control Strategy for Uncertain Networked Control System

Aiming at the uncertain NCS with bounded long time delay, the time-varying network-delay is translated into constant loop-delay by setting the proper network interface, and the augmented plant model implicating delay information is established. Then for the uncertain part of system, a disturbance estimator is designed. On the basis of the above mentioned studies, a class of disturbance-estimated sliding mode control strategy is presented. Simulation study shows that above-mentioned method can overcome effectively the concurrent parameter perturbation and exterior disturbance as well as delay's adverse influence, and has good control performance and robustness