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Title: Anti-windup and the preservation of robustness against structured norm-bounded uncertainty
Authors: Morales, Rafael Mauricio
Li, G.
Heath, W. P.
First Published: 6-May-2013
Publisher: John Wiley and Sons Ltd for International Federation of Automatic Control (IFAC)
Citation: International Journal of Robust and Nonlinear Control, 2013, 24 (17), pp. 2640-2652
Abstract: Anti-windup systems are modified control structures, which are designed to compensate against the detrimental effects of saturations. This manuscript considers primarily the stability robustness of two well-known anti-windup structures. Sufficient conditions for the stability robustness of the anti-windup structures and optimal robustness against structured norm-bounded plant uncertainty are found. A saturated loop is said to be optimally robust if the constrained loop is as robust as its unconstrained counterpart. The robustness condition is shown to be less conservative than existing results on additive uncertainty. Although it is known that the conventional internal model control provides optimal robustness against additive unstructured uncertainty, this is not the case against the more general uncertainty structure.
DOI Link: 10.1002/rnc.3014
ISSN: 1049-8923
eISSN: 1099-1239
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2013 John Wiley & Sons, Ltd. This is the peer reviewed version of the following article: Morales R.M., Li G., and Heath W.P. (2014), Anti-windup and the preservation of robustness against structured norm-bounded uncertainty, Int. J. Robust. Nonlinear Control, 24, pages 2640–2652, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Appears in Collections:Published Articles, Dept. of Engineering

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