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|Title:||Integrity of systems under decentralized integral control||Authors:||Meadows, Edward S.
Forbes, J. Fraser
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering
DRNTU::Engineering::Computer science and engineering::Theory of computation::Analysis of algorithms and problem complexity
|Issue Date:||2005||Source:||Kariwala, V., Forbes, J. F., & Meadows, E. S.(2005). Integrity of systems under decentralized integral control. Automatica, 41(9), 1575-1581.||Series/Report no.:||Automatica||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.||URI:||https://hdl.handle.net/10356/90901
|ISSN:||0005-1098||DOI:||http://dx.doi.org/10.1016/j.automatica.2005.03.024||Rights:||Automatica. Copyright © 2005 Elsevier Ltd All rights reserved. The Journal's web site is located at http://www.sciencedirect.com/science/journal/00051098||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SCBE Journal Articles|
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