Nonlinear Control of a Buck Converter Feeding a Constant Power Load

Solsona, Jorge Alberto
Gómez Jorge, Sebastián
Busada, Claudio

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Publication date

August 2014

DOI

10.1109/TLA.2014.6872903

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

ISSN

1548-0992

Journal

IEEE Latin America Transactions

Citation count (estimate)

Abstract

In this paper a nonlinear control strategy for controlling a dc/dc Buck converter feeding a constant power load is proposed. A feedback controller is combined with a feedforward strategy. A nonlinear reduced order observer is used for estimating the value of the power load and its time derivative. These estimated values are fed forward to the nonlinear feedback controller whose design is based on feedback linearization method. The proposed controller is tested via simulations and also, experimental results are presented.Fil: Solsona, Jorge Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Investigación En Ingeniería Eléctrica; Argentina. Universidad Nacional del Sur...