Diseño de un cargador de baterías en aplicaciones de energía solar

Abstract

This article addresses the design of a battery charger for off-grid applications powered by photovoltaic solar energy, using a DC-DC buck converter and solar panels with nominal power of 100W. In the control system a perturb and observe (P&O) maximum power point tracking algorithm is applied aiming of operating at the optimum point, using a PWM modulator which controls the output current of the solar panel. The passive elements of the converter are calculated to operate in a continuous conduction mode. The control system uses a dsPIC30F4011, and its performance experimentally verified.