Artículos de revistas
H-2 And H-infinity Control Of Time-varying Delay Switched Linear Systems With Application To Sampled-data Control
Nonlinear Analysis-hybrid Systems. Elsevier Sci Ltd, v. 22, p. 43 - 54, 2016.
Grace S.; Bolzern
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)This paper deals with switched linear systems subject to time-varying delay. The main goal is to design state and output feedback switching strategies preserving closed-loop stability and a guaranteed H-2 or H-infinity performance. The switching strategies are based on a generalization of a recent extended version of the Small gain theorem and do not require any assumption on the continuity of the delay and its time-variation rate. The key point to obtain the design conditions is the adoption of an equivalent switched linear system where the time-varying delay is modeled as a norm-bounded perturbation. Moreover, with this approach, it is possible to deal with sampled-data control systems. All conditions are formulated in terms of Lyapunov Metzler inequalities, which allow the maximization of an upper bound on the time-delay preserving stability and guaranteed performance. Numerical examples are discussed in order to illustrate the effectiveness of the design approach. (C) 2016 Elsevier Ltd. All rights reserved.224354Brazilian National Research Council-CNPq [303887/2014-1, 443166/2014-5]Sao Paulo Research Foundation-FAPESP [2013/08691-2]Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)