Artículos de revistas
Discretization And Event Triggered Digital Output Feedback Control Of Lpv Systems
Registro en:
Discretization And Event Triggered Digital Output Feedback Control Of Lpv Systems. Elsevier Science Bv, v. 86, p. 54-65 DEC-2015.
0167-6911
WOS:000366342100008
10.1016/j.sysconle.2015.10.002
Autor
Braga
Marcio F.; Morais
Cecilia F.; Tognetti
Eduardo S.; Oliveira
Ricardo C. L. F.; Peres
Pedro L. D.
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) This paper investigates the problem of discretization and digital output feedback control design for continuous-time linear parameter-varying (LPV) systems subject to a time-varying networked-induced delay. The proposed discretization procedure converts a continuous-time LPV system into an equivalent discrete-time LPV system based on an extension of the Taylor series expansion and using an event-based sampling. The scheduling parameters are continuously measured and modeled as piecewise constant. A new transmission of the measured output to the controller is triggered by significant changes in the parameters, yielding time-varying transmission intervals. The obtained discretized model has matrices with polynomial dependence on the time-varying parameters and an additive norm-bounded term representing the discretization residual error. A two step strategy based on linear matrix inequality conditions is then proposed to synthesize a digital static scheduled output feedback control law that stabilizes both the discretized and the LPV model. The conditions can also be used to provide robust (i.e., independent of the scheduling parameter) static output feedback controllers. The viability of the proposed design method is illustrated through numerical examples. (C) 2015 Elsevier B.V. All rights reserved. 86
54 65 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Brazilian agency FAPDF Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) [2011/08312-6] [2014/22881-1] Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)