Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96990
Type: Artigo de periódico
Title: Lmi Relaxations For Reduced-order Robust H ∞ Control Of Continuous-time Uncertain Linear Systems
Author: Agulhari C.M.
Oliveira R.C.L.F.
Peres P.L.D.
Abstract: This technical note is concerned with the problem of reduced order robust H ∞ dynamic output feedback control design for uncertain continuous-time linear systems. The uncertain time-invariant parameters belong to a polytopic domain and affect all the system matrices. The search for a reduced-order controller is converted in a problem of static output feedback control design for an augmented system. To solve the problem, a two-stage linear matrix inequality (LMI) procedure is proposed. At the first step, a stabilizing state feedback scheduled controller with polynomial or rational dependence on the parameters is determined. This parameter-dependent state feedback controller is used at the second stage, which synthesizes the robust (parameter- independent) output feedback H ∞ dynamic controller. A homogeneous polynomially parameter-dependent Lyapunov function of arbitrary degree is used to assess closed-loop stability with a prescribed H ∞ attenuation level. As illustrated by numerical examples, the proposed method provides better results than other LMI based conditions from the literature. © 2011 IEEE.
Editor: 
Rights: fechado
Identifier DOI: 10.1109/TAC.2011.2174693
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84861754199&partnerID=40&md5=7a5f26378f82f0941a41e7690d4c45ac
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.