Sliding mode predictive control for long delay time systems

Delay time, which may degrade the control performance, is frequently encountered in various systems. In this Letter, a sliding mode controller (SMC) based on fuzzy prediction algorithm is presented to control the long delay systems. According to the characteristics of the long delay systems, we simulate the manual operating process and predict the delayed error and its increment based on the information of the input and output variables of the system, and then feedback these prediction values to the sliding mode controller. Simulation examples demonstrate the advantages of the proposed control scheme.