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Type: Artigo de periódico
Title: Robust ℋ2 Static Output Feedback Design Starting From A Parameter-dependent State Feedback Controller For Time-invariant Discrete-time Polytopic Systems
Author: Moreira H.R.
Oliveira R.C.L.F.
Peres P.L.D.
Abstract: This paper investigates the problem of computing robust ℋ2 static output feedback controllers for discrete-time uncertain linear systems with time-invariant parameters lying in polytopic domains. A two stages design procedure based on linear matrix inequalities is proposed as the main contribution. First, a parameter-dependent state feedback controller is synthesized and the resulting gains are used as an input condition for the second stage, which designs the desired robust static output feedback controller with an ℋ2 guaranteed cost. The conditions are based on parameter-dependent Lyapunov functions and, differently from most of existing approaches, can also cope with uncertainties in the output control matrix. Numerical examples, including a mass-spring system, illustrate the advantages of the proposed procedure when compared with other methods available in the literature. © 2009 John Wiley & Sons, Ltd.
Rights: fechado
Identifier DOI: 10.1002/oca.916
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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