A New Variable Structure Control Algorithm Based on General Sliding Mode Prediction

摘要

For systems described by Controlled Auto-Regressive Integrated Moving Average model, a novel variable structure control (VSC) strategy based on general sliding mode prediction is presented. By creating a special sliding mode prediction model, introducing a suitable reference sliding mode trajectory, and combining with general predictive control (GPC) approach, the variable structure control law is constructed. Simulation results illustrate that the closed-loop systems have the advantages of VSC and GPC, while relief the drawbacks of VSC. Such as the systems have strong robustness, the systems states have fast convergence, the control signals in the systems are optimal, the disgusting chattering phenomena is eliminated, and the algorithm is convenient to deal with time-delay.