Aplicação de películas orgânicas fotovoltaicas como fonte de energia auxiliar do sistema elétrico de veículos leves

Abstract

This study proposes to use the electrical energy generated by organic photovoltaic films (OPV) to assist in supplying energy to the loads of the electrical system of light vehicles, where the main source of energy, when the vehicle has the engine on, comes from the alternator. It is proposed the design of a dc-dc Buck-Boost converter with the objective of acting as a maximum power point tracker of the conversion of the OPV modules to increase the global efficiency of the system. The converter uses the Constant Voltage MPPT technique, which maintains the voltage at the OPV module terminals at the maximum power point under reference operating conditions. The design specifications of the converter are as follows: 18 W processed power, input voltage 16 V, output voltage 14 V, and 50 kHz converter switching frequency. The numerical results obtained are presented, in order to validate the theoretical studies, the development of a prototype and experimental results.