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Delay-dependent robust stability and -gain analysis of a class of nonlinear time-delay systems

✍ Scribed by Daniel F. Coutinho; Carlos E. de Souza

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
600 KB
Volume
44
Category
Article
ISSN
0005-1098

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✦ Synopsis

A convex approach to robust regional stability analysis of a class of nonlinear state-delayed systems subject to convex-bounded parameter uncertainty is proposed. Delay-dependent conditions are developed to ensure system robust local stability and obtain an estimate of a domain of attraction of the origin inside a given polytopic region of the state-space. This approach is then extended to provide a delay-dependent solution to the problem of L 2 -gain analysis. The proposed approach is based on a Lyapunov-Krasovskii functional with polynomial dependence on the system state and uncertain parameters and is formulated in terms of linear matrix inequalities. Numerical examples illustrate the potentials of the derived results.

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