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

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....

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Bibliographic Details
Published in:IEEE transactions on automatic control 1996-06, Vol.41 (6), p.850-854
Main Authors: Gong, Z., Wen, C., Mital, D.P.
Format: Article
Language:English
Subjects:
Adaptive control
Applied sciences
Computer science
control theory
systems
Control system synthesis
Control systems
Control theory. Systems
Distributed control
Exact sciences and technology
Riccati equations
Robust control
Stability
Time varying systems
Uncertain systems
Uncertainty
Vectors
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Summary: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.
ISSN:0018-9286
1558-2523
DOI:10.1109/9.506237