Title :
Decentralized stabilization of uncertain large scale interconnected time-varying systems
Author_Institution :
Dept. of Inf. Sci., Hiroshima Prefectural Univ., Japan
Abstract :
The problem of decentralized stabilisation of large scale linear time-varying systems with uncertainties and external disturbances in the interconnections is considered. The upper bounds of the uncertainties and external disturbances are assumed to be unknown. 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 state feedback controllers is constructed. It is shown that by employing the proposed adaptive robust decentralized state feedback controllers, the solutions of the resulting adaptive closed-loop large scale system can be guaranteed to be uniformly bounded, and the states are uniformly asymptotically stable
Keywords :
adaptive control; asymptotic stability; closed loop systems; decentralised control; interconnected systems; state feedback; time-varying systems; uncertain systems; adaptive closed-loop large scale system; adaptive robust controllers; decentralized stabilization; decentralized state feedback controllers; external disturbances; uncertain large scale interconnected time-varying systems; uniform asymptotic stability; Adaptive control; Control systems; Large-scale systems; Programmable control; Robust control; State estimation; State feedback; Time varying systems; Uncertainty; Upper bound;
Conference_Titel :
Control Applications, 2001. (CCA '01). Proceedings of the 2001 IEEE International Conference on
Conference_Location :
Mexico City
Print_ISBN :
0-7803-6733-2
DOI :
10.1109/CCA.2001.973964
