Stabilization of networked control systems with large delays and packet dropouts

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Abstract

Abstract—We consider the stabilization problem for Networked Control Systems (NCSs) with uncertain, time-varying network-induced delays and a bounded number of subsequent packet dropouts. A discrete-time model, describing a NCS with packet dropouts and time-varying delays, that can be both smaller and larger than the sampling interval, is presented. Based on this NCS model sufficient LMI conditions are proposed for the stability analysis and controller synthesis problem for two different controllers, i.e. a feedback controller that depends on both the state and the past control inputs and a state-feedback controller. The applicability of both controllers is compared.Moreover, the stability and controller synthesis LMIs allow for a performance analysis in terms of a lower bound for the transient decay rate of the response. The results are illustrated by application to a typical motion control example.
Original languageEnglish
Title of host publicationProceedings of the 2008 American Control Conference (ACC2008), Seattle, Washington, USA, June 11-13, 2008
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages4991-4996
ISBN (Print)978-1-4244-2078-0
Publication statusPublished - 2008

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