| Texto completo | |
| Autor(es): |
Braga, Marcio F.
;
Morais, Cecilia F.
;
Tognetti, Eduardo S.
;
Oliveira, Ricardo C. L. F.
;
Peres, Pedro L. D.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL; v. 26, n. 11, p. 2299-2313, JUL 25 2016. |
| Citações Web of Science: | 2 |
| Resumo | |
This paper investigates the problem of designing robust linear quadratic regulators for uncertain polytopic continuous-time systems over networks subject to delays. The main contribution is to provide a procedure to determine a discrete-time representation of the weighting matrices associated to the quadratic criterion and an accurate discretized model, in such a way that a robust state feedback gain computed in the discrete-time domain assures a guaranteed quadratic cost to the closed-loop continuous-time system. The obtained discretized model has matrices with polynomial dependence on the uncertain parameters and an additive norm-bounded term representing the approximation residual error. A strategy based on linear matrix inequality relaxations is proposed to synthesize, in the discrete-time domain, a digital robust state feedback control law that stabilizes the original continuous-time system assuring an upper bound to the quadratic cost of the closed-loop system. The applicability of the proposed design method is illustrated through a numerical experiment. Copyright (C) 2015 John Wiley \& Sons, Ltd. (AU) | |
| Processo FAPESP: | 14/22881-1 - Controle de sistemas chaveados, sujeitos a saltos markovianos e outras classes de sistemas híbridos usando LMIs |
| Beneficiário: | Cecília de Freitas Morais |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 14/25112-9 - Controle e filtragem ótimos de sistemas politópicos discretizados |
| Beneficiário: | Marcio Feliciano Braga |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |