Conception et simulation de la commande MPPT dans le cas d’hacheur boost & Z-source

Abstract

To choose the right sources, we first need to select the basic architecture of the energy flow, in terms of reversibility of electrical energy and system stability, such as a system of photovoltaic panels with storage batteries. In addition, the output voltage of these sources is relatively low and, in general, a high DC bus voltage is required. And among the elements of the photovoltaic conversion chain that impose certain limitations are the choppers and especially the high-gain Z-source converters that play an important role in the interface between the photovoltaic panels and the DC bus. These converters have better efficiency and gain characteristics than conventional converters.