A development of battery monitoring and management system

In case of installing a room of a battery for recharging an electric car, it is necessary to have a system to keep the best state of a battery and to control the recharge and discharge of power. This paper is about the measuring module for the status information of a battery and the development of a battery management system to manage individual battery in a room of a battery with 120kWh grade. It was designed to measure 400V for the maximum voltage of a battery, and 300A for the electric current and (−10 ∼ 50) °C for the temperature. By manufacturing a measuring module, the voltage, electric current and temperature were measured for nickel-metal hydride battery, and a system managing the recharge and discharge of power of a battery in real time was developed by using LabVIEW program.