H-Infinity Control And Exponential Stability Of Nonlinear Nonautonomous Systems With Time-Varying Delay

Springer/Plenum Publishers
Publication Type:
Journal Article
Journal of Optimization Theory and Applications, 2009, 142 (3), pp. 603 - 618
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This paper addresses the design of H ? state feedback controllers for a class of nonlinear time-varying delay systems. The interesting features here are that the system in consideration is nonautonomous with fast-varying delays, the delay is also involved in the observation output, and the controllers to be designed satisfy some exponential stability constraints on the closed-loop poles. By using the proposed Lyapunov functional approach, neither a controllability assumption nor a bound restriction on nonlinear perturbations is required to obtain new sufficient conditions for the H ? control. The conditions are derived in terms of a solution to the standard Riccati differential equations, which allows for simultaneous computation of the two bounds that characterize the stability rate of the solution.
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