LEAD ACID BATTERY MANAGEMENT SYSTEM FOR ELECTRICAL VEHICLES

The high level of energy and power density of Lithium-ion and Zinc batteries amongst electrochemical batteries such Lead acid battery etc. makes them suitable as the energy storage in electric, hybrid electric vehicle, and plug-in vehicles (EV/HEV/PHEV). The battery management system is an electronic system that manages battery. One of the requirements in electrical system is rechargeable battery and its precise management. The Battery management system (BMS) monitors very important battery parameters i.e. state of charge, state of health, coolant flow for air or fluid, ampere hour counting, terminal voltage and flowing current (in and out).Open circuit voltage and integral of discharging current of the battery be used for estimation of SOC and are the function of SOC. The on line measurement and comparison of the predicted and measured terminal voltage and integral of current provides a tool for estimating the SOC and SOH. The BMS is also used for calculating secondary reports and reporting the generated data. The BMS also helps in controlling or balancing battery environment. In this research paper attempt is made to design the battery management system for electrical system or plug-in vehicles.