Diseño e implementación de un convertidor DC/DC en lazo cerrado que genere las curvas i-v y p-v de módulos fotovoltaicos comerciales hasta 100W

Abstract

This project offers a tool that allows to replicate the electrical behavior of commercial photovoltaic modules of up to 100 W in front of irradiance variations, the equipment allows to solve problems when using real photovoltaic modules, such as the dependence of the climatic conditions, the large space required and the high cost to perform tests on equipment such as inverters and converters. The equipment also allows to carry out feasibility studies of the use of photovoltaic panels and the choice of the most suitable panel to obtain maximum use. The electrical behavior of a photovoltaic panel is defined by the characteristic curves IV and PV in certain conditions of irradiance and temperature, to reproduce this behavior a programmable DC source was designed based on a DC / DC Converter Reductor-Elevator since this topology allows to characterize all the IV curve in continuous conduction mode, the converter is controlled by a FPGA card and software developed in LabVIEW of the National Instrument. The team has a graphical interface developed also in LabVIEW that allows the entry by the user of the electrical parameters of the photovoltaic module to emulate, as well as the solar irradiation scenarios, also allows the visualization and analysis of the characteristic curves.