Uniform asymptotic stabilization of decentralized adaptive robust control for uncertain large scale interconnected systems

The problem of decentralized robust control is considered for a class of uncertain time-varying large scale interconnected systems. In the paper, the upper bounds of the uncertainties and external disturbances are assumed to be unknown. The adaptation laws are proposed to estimate such unknown bounds, and by making use of the updated values of these unknown bounds, a class of decentralized robust state feedback controllers are constructed. It is shown that by employing the proposed decentralized robust state feedback controllers, the solutions of the resulting adaptive closed-loop large scale systems can be guaranteed to be uniformly bounded, and the States are uniformly asymptotically stable.