Hardware e Software para monitoramento e operação de BESS

Abstract

The prospect of growing demand for photovoltaic systems and electric vehicles in recent years has created the need for improvement in battery management systems for commercial and industrial applications. BESS is a system that provides a solution that enables the control and intelligent use of energy resources. In this course conclusion work, a system is developed to monitor the charge and discharge of a lithium-ion battery. A circuit capable of charging and discharging a battery is designed, and the charge is perfor- med using the CCCV method. A microcontroller and some sensors were used to capture the voltage and current of the battery, and perform the SOC estimation through the Coulomb count. Data from these measurements are sent via websocket to a server, which stores the measurements in a relational database. All data can be visualized in graphs updated in real time in a frontend that runs in a web browser. Through the experiments, it was possible to validate the functioning of the system through the observation of the graphs of charge and discharge of the battery.