Decentralized robust controller design for a class of interconnected uncertain systems: with unknown bound of uncertainty

Author

Gong, Zhiming ; Wen, Changyun ; Mital, Dinesh P.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore

Volume

41

Issue

6

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

850

Lastpage

854

Abstract

In this paper, a simple decentralized robust control scheme is proposed for a class of interconnected time-varying systems with uncertainties. The uncertainties may appear in the interconnections between the subsystems and also within the subsystems, and they are possibly nonlinear and time-varying. The uncertainties are bounded, but the bounds of the uncertainties are unknown in controller design. When certain matching conditions are satisfied for the uncertain interconnections and the uncertainties within the subsystems, the proposed decentralized control scheme guarantees the controlled system to converge exponentially with a prescribed degree toward the equilibrium of the system, or a residual ball around the equilibrium

Keywords

control system synthesis; decentralised control; interconnected systems; robust control; time-varying systems; uncertain systems; decentralized robust controller design; exponential convergence; interconnected uncertain systems; matching conditions; time-varying systems; Adaptive control; Control systems; Distributed control; Riccati equations; Robust control; Stability; Time varying systems; Uncertain systems; Uncertainty; Vectors;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.506237

Filename

506237