Diseño y simulación del control de un sistema de generación fotovoltaico basado en un convertidor dc-dc elevador aislado, un convertidor dc-ac monofásico desconectado de la red y un banco de baterías

Abstract

The following article presents the control design and simulation of an off-grid photovoltaic generation system, which consist of photovoltaic panels for the generation of electrical energy, and a battery bank used to store the excess of energy or to provide the required energy when the photovoltaic panels do not generate enough of it. The sizing of the elements that constitute the system is made by the assumption that no energy loss occurs in the converters, and based on the minimum requirements in the ripple of both the current and the voltage. Next is the design of the photovoltaic system control, aiming to maintain the voltage and current values within normal limits, even in the case of a disturbance. Finally, extensive testing are performed by simulations, using digital tools such as PLECS and MATLAB / SIMULINK, that verify the correct operation of the system when there are changes in its input signals, trying to emulate real conditions.