Integrity of systems under decentralized integral control

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Integrity of systems under decentralized integral control

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dc.contributor.author Kariwala, Vinay
dc.contributor.author Forbes, J. Fraser
dc.contributor.author Meadows, Edward S.
dc.date.accessioned 2009-03-09T03:01:18Z
dc.date.available 2009-03-09T03:01:18Z
dc.date.copyright 2005
dc.date.issued 2009-03-09T03:01:18Z
dc.identifier.citation Kariwala, V., Forbes, J. F., & Meadows, E. S.(2005). Integrity of systems under decentralized integral control. Automatica, 41(9), 1575-1581.
dc.identifier.issn 0005-1098
dc.identifier.uri http://hdl.handle.net/10220/4504
dc.description.abstract A decentralized controller that maintains closed loop stability, when the individual controllers fail or are taken out of service, provides fault tolerance and flexibility in operation. Recently, necessary and sufficient conditions for the existence of a block decentralized controller with integral action for a system to possess integrity against controller failures were proposed. In this paper, these conditions are equivalently expressed using the well-known notions of Niederlinski index (NI) and block relative gain (BRG). The alternate representation implies that under minor assumptions, the available necessary conditions based on NI and BRG are actually both necessary and sufficient. We also show that confirming the existence of a block decentralized controller with integral action such that the system has integrity is NP-hard.
dc.format.extent 7 p.
dc.language.iso en
dc.relation.ispartofseries Automatica
dc.rights Automatica. Copyright © 2005 Elsevier Ltd All rights reserved. The Journal's web site is located at http://www.sciencedirect.com/science/journal/00051098
dc.subject DRNTU::Engineering::Chemical engineering
dc.subject DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering
dc.subject DRNTU::Engineering::Computer science and engineering::Theory of computation::Analysis of algorithms and problem complexity
dc.title Integrity of systems under decentralized integral control
dc.type Journal Article
dc.contributor.school School of Chemical and Biomedical Engineering
dc.date.journalvolissue Vol. 41, no. 9 (Sep. 2005)
dc.identifier.doi http://dx.doi.org/10.1016/j.automatica.2005.03.024
dc.description.version Accepted version

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