A dynamic output feedback controller for a network controlled system based on delay estimates

The stabilization of a network controlled system including a global time-varying delay is investigated in this note. This delay is considered to be unknown but it is assumed that a bounded error estimate is available. The exponential uncertainty induced by the time-varying delay is decomposed into t...

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Bibliographic Details
Published in:Automatica (Oxford) 2013-03, Vol.49 (3), p.788-792
Main Authors: Jungers, Marc, Castelan, Eugênio, Moraes, Vitor M., Moreno, Ubirajara F.
Format: Article
Language:English
Subjects:
Automatic
Engineering Sciences
Online Access:Get full text
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Summary:The stabilization of a network controlled system including a global time-varying delay is investigated in this note. This delay is considered to be unknown but it is assumed that a bounded error estimate is available. The exponential uncertainty induced by the time-varying delay is decomposed into the sum of a polytopic term and an uncertain bounded term. Sufficient conditions to design a dynamic output feedback controller depending on an estimate of the time-varying delay are proposed as linear matrix inequalities. An illustration shows how our methodology enlarges the design techniques of the literature.
ISSN:0005-1098
DOI:10.1016/j.automatica.2012.11.047