Control of nonlinear phenomena in DC-DC converters: Fuzzy logic approach

DC–DC power converters are characterized by cyclic switching of circuit configurations, which gives rise to a variety of nonlinear behaviours. Their occurrence in DC–DC power converters makes the system analysis, control and behaviour prediction difficult. An enhanced modelling method allowing one t...

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Bibliographic Details
Published in:International journal of circuit theory and applications 2008-10, Vol.36 (7), p.857-874
Main Authors: Guesmi, Kamel, Hamzaoui, Abdelaziz, Zaytoon, Janan
Format: Article
Language:English
Subjects:
Automatic
averaged current regulation
boost converter
Engineering Sciences
enhanced model
fuzzy logic controller
nonlinear phenomena
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Summary:DC–DC power converters are characterized by cyclic switching of circuit configurations, which gives rise to a variety of nonlinear behaviours. Their occurrence in DC–DC power converters makes the system analysis, control and behaviour prediction difficult. An enhanced modelling method allowing one to obtain an accurate description of the converter behaviour is presented in this paper. A fuzzy control scheme is proposed, and a fuzzy logic controller is then developed to both suppress converter nonlinear phenomena and ensure the averaged input current regulation for a wide range of parameters' variation. Copyright © 2008 John Wiley & Sons, Ltd.
ISSN:0098-9886
1097-007X
DOI:10.1002/cta.468