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Sliding motion, robust control and power loss minimization in a class of non-linear switched converters

Olm, J.M., Biel, D., Fossas, E. and Zinober, A.S.I. (2007) Sliding motion, robust control and power loss minimization in a class of non-linear switched converters. International Journal of Control, 80 (6). pp. 968-981. ISSN 0020-7179

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In this paper we propose a sliding mode control scheme that allows robust control of the output voltage in a class of non-linear switched converters that includes the non-inverting buck-boost, the Watkins-Johnson and the inverse of Watkins-Johnson. Using a full-state reference profile-based sliding surface, periodic signals may be tracked by the output voltage under appropriate restrictions. Furthermore, semi-infinite programming techniques are used to minimize power loses while taking into account the existence of load perturbations. The procedure consists of choosing a reference signal for the inductor current with minimum root mean square, subject to the maintenance of sliding regime under possible load variation in a set with known bounds. Realistic simulation results show a highly robust performance in the presence of load disturbances.

Item Type: Article
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 11:48
Last Modified: 16 Nov 2015 11:49
Published Version: http://dx.doi.org/10.1080/00207170701261960
Status: Published
Publisher: Taylor & Francis
Identification Number: 10.1080/00207170701261960
URI: http://eprints.whiterose.ac.uk/id/eprint/10641

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