Decentralized Robust Control for Uncertain Nonlinear Descriptor Large-scale Composite Systems with Input Saturation

This paper investigated the problem of decentralized robust stabilization for a class of uncertain nonlinear descriptor similar large-scale composite systems with input saturation. Based on decomposing theory of large-scale systems, Lyapunov stable theory and matrix theory, a kind of decentralized robust stabilization controller is designed which ensures asymptotic stability of the closed-loop systems for these systems and the closedloop systems for their isolated subsystems. Since the similar structures of the controllers, all controllers can be obtained by only one controller and similar parameters; thus, they are easy to perform in engineering practice. Further, a numerical example is given to demonstrate the effectiveness of the proposed methods.