Sistema de gerenciamento de energia para baterias li-íon aplicadas em veículos elétricos

Abstract

Traditional vehicles powered by internal combustion use fossil fuels derived from petroleum, which is a non-renewable source of energy, releasing polluting gases into the atmosphere capable of interfering with climate change and contributing to an increase in the average temperature of the planet. A solution to minimize the emission of pollutants is the use of purely electric traction vehicles, which require energy storage systems that are increasingly adequate and efficient. In this context, the main objective of this work is to analyze and implement an energy storage system, thus aiming to define the most efficient type for applications in a low-cost purely electric traction vehicle. It was observed that Li-ion (Lithium Ion) batteries are currently the most suitable for this type of application, however, they require a dedicated control to provide the best performance, useful life and safety guarantee. In this way, a BMS (Battery Management System) circuit was developed, responsible for managing the charging and discharging processes, balancing between series of the battery packs. The BMS implemented proved to be adequate, being able to guarantee the satisfactory operation of the storage system.