Autor(es)

Palma, Jonathan M. ; Garces, Hugo O. ; Rojas, Alejandro J. ; Morais, Cecilia F. ; Oliveira, Ricardo C. L. F.

• Tipo de documento: Artigo Científico
• Fonte: IFAC PAPERSONLINE; v. 51, n. 25, p. 6-pg., 2018-01-01.

Resumo

This paper proposes a complete robust control design procedure for combustion systems, present in a wide range of important applications. Using a non-linear model identified through optical instrumentation, it is proposed a linear model around an operating condition. To ensure robustness with respect to variations on the operation condition and to deal with external disturbances, a state-space linear representation is further developed, introducing uncertain parameters and exogenous inputs affecting the plant (as non-laminar air flow), giving rise to a polytopic uncertain linear system. Finally, it is proposed a reduced-order H-infinity output-feedback control law for the resulting uncertain system, capable to assure closed-loop robust stability and performance in the whole uncertain domain A numerical experiment is presented to show the effectiveness of the designed reduced-order controller, that is robust against uncertainties and have a low cost of implementation. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. (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: 17/18785-5 - Desigualdades Matriciais Lineares Dependentes de Parâmetros Aplicadas à Análise de Estabilidade e à Síntese de Controladores e Filtros para Sistemas Dinâmicos com Incertezas
• Beneficiário: Pedro Luis Dias Peres
• Modalidade de apoio: Auxílio à Pesquisa - Regular