Title :
Delay-dependent robust H∞ control for uncertain systems with time-varying state-delay
Author :
Lee, Young Sam ; Moon, Young Soo ; Kwon, Wook Hyun ; Lee, Kwan Ho
Author_Institution :
Eng. Res. Center for Adv. Control & Instrum., Seoul Nat. Univ., South Korea
Abstract :
The paper concerns a problem of robust H∞ control for uncertain systems with time-varying state-delay. A delay-dependent robust H∞ controller is presented in terms of matrix inequalities. An algorithm involving convex optimization is proposed to find a suboptimal maximal delay such that the closed-loop system with the designed controller is asymptotically stable and guarantees the H ∞ norm bound for all admissible uncertainties. Numerical examples are presented to show that the proposed results are less conservative than the existing results
Keywords :
H∞ control; asymptotic stability; closed loop systems; delays; matrix algebra; robust control; uncertain systems; H∞ norm bound; asymptotically stable controller; closed-loop system; convex optimization; delay-dependent robust H∞ control; matrix inequalities; suboptimal maximal delay; time-varying state-delay; uncertain systems; Algorithm design and analysis; Control systems; Delay; Design optimization; Linear matrix inequalities; Robust control; Robustness; Time varying systems; Uncertain systems; Uncertainty;
Conference_Titel :
Decision and Control, 2001. Proceedings of the 40th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-7061-9
DOI :
10.1109/.2001.980312
