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Analysis and design of H control of nonminimum phase-switching converters

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5 Author(s)
Vidal-Idiarte, E. ; Dept. d''Enginyeria Electron., Electrica i Automatica, Univ. Rovira i Virgili, Tarragona, Spain ; Martinez-Salamero, L. ; Valderrama-Blavi, H. ; Guinjoan, F.
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The application of the H theory to control nonminimum phase dc-to-dc switching converters is investigated in this paper. Using an averaged linear model of the converter, a robust controller is developed, guaranteeing stability and the desired closed-loop dynamic response. Boost and buck-boost converters with H control exhibit excellent performances with good tracking and high rejection capability of disturbances introduced by changes of load and input voltage by computer simulation. Experimental results are also obtained in a boost converter and compared with those obtained using current peak control and sliding-mode control.

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Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on  (Volume:50 ,  Issue: 10 )