Journal of New Technology and Materials
Volume 4, Numéro 1, Pages 126-133
2014-06-30

Analysis Of Pulse Width Modulation Dc-dc Chopper -on/off Control Via A Second Order Filter-



Authors : Belhour Souad . Zaatri Abdelouahab .

Abstract

his paper presents the analysis of a nonlinear on/off control system including a filter of a second order in the closed loop for compensating the fluctuation of the irradiation as well as the variations of the load. The proposed system is capable of generating a pulse width modulation which is used to design and built up a (Pulse Width Modulation) chopper dedicated to regulate fluctuating power supplies (photovoltaic, wind, etc.). The study essentially focuses on determining the relationship between the pulse duration with respect to system parameters and technological requirements. The theoretical study is followed by a simulation of a chopper.

Keywords

on/off control, pulse width modulation, chopper design, optimal control

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