H∞ fuzzy control of DC-DC converters with input constraint
Journal article, Peer reviewed
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OriginalversjonSaifia, D., Chadli, M., Labiod, S., & Karimi, H. R. (2012). H∞ fuzzy control of DC-DC converters with input constraint. Mathematical Problems in Engineering, 2012, 1-18. doi: 10.1155/2012/973082 10.1155/2012/973082
This paper proposes a method for designing H∞ fuzzy control of DC-DC converters under actuator saturation. Because linear control design methods do not take into account the nonlinearity of the system, a T-S fuzzy model and a controller design approach is used. The designed control not only handles the external disturbance but also the saturation of duty cycle. The input constraint is first transformed into a symmetric saturation which is represented by a polytopic model. Stabilization conditions for the H∞ state feedback system of DC-DC converters under actuator saturation are established using the Lyapunov approach. The proposed method has been compared and verified with a simulation example.
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2012/973082 Open access