A new discrete variable structure control algorithm based on sliding mode prediction

In this paper, a new discrete variable structure control design approach based on sliding mode prediction algorithm for a class of discrete-time systems is presented. By employing a special model to predict future sliding mode value and an ideal reaching law as reference sliding mode trajectory, and at the same time, combining feedback correction and rolling optimization method which are extensively applied on predictive control strategy, a discrete-time variable structure control law is constructed. Simulation results illustrate that the closed-loop system has desired performance, such as strong robustness, fast convergence and chattering elimination.