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Galerkin-based sliding mode tracking control of non-minimum phase DC-to-DC power converters

Fossas, E., Olm, J.M., Zinober, A. and Shtessel, Y.B. (2006) Galerkin-based sliding mode tracking control of non-minimum phase DC-to-DC power converters. International Journal of Robust and Nonlinear Control, 17 (7). pp. 587-604. ISSN 1049-8923

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Output voltage control of nonlinear DC-to-DC power converters is handicapped by the non-minimum phase character exhibited by these systems. The problem has been usually solved with indirect control strategies that work through the input current. In this article, we report a robust control methodology that uses Galerkin-based sliding manifolds, which use full state reference profiles and an estimate of the disturbed load parameter. The sliding surface incorporates a first-order Galerkin approximation of the input current that provides robustness to piecewise constant load perturbations by dynamic compensation: it allows on-line accommodation to the action of the load estimator. This results in high-accuracy tracking of periodic references at the output resistance of boost and buck-boost converters. Copyright © 2006 John Wiley & Sons, Ltd.

Item Type: Article
Keywords: Galerkin method; non-minimum phase systems; robust control; bilinear power converters
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield)
Depositing User: Mrs Megan Hobbs
Date Deposited: 22 Mar 2010 15:41
Last Modified: 16 Nov 2015 11:49
Published Version: http://dx.doi.org/10.1002/rnc.1136
Status: Published
Publisher: John Wiley & Sons
Identification Number: 10.1002/rnc.1136
URI: http://eprints.whiterose.ac.uk/id/eprint/10639

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