Decentralized adaptive fuzzy sliding-mode controller design for large-scale nonlinear uncertain systems

Based on the combination of sliding mode control with fuzzy control and simple adaptation laws, the paper presents a feasible design algorithm to synthesize a decentralized adaptive fuzzy sliding-mode controller which can easily tackle the output tracking control problem of large-scale nonlinear uncertain systems in the presence of higher-order and unmatched uncertainties without the knowledge of the upper bounds on the norm of the uncertainties.