Using Passive Cell Balancing, a Battery Management System is Designed and Analysed

Abstract

Economic and technological efforts to lessen the challenges posed by fossil fuels are having an impact on the global demand for electric vehicles (EVs).A crucial component is energy storage, which powers electric vehicles. Numerous battery cells are connected in series and parallel in battery packs that are used as energy storage for electric vehicles. When these battery cells are used in an electric vehicle, they need to be closely monitored and managed by a system. Such a framework, called the Battery The board Framework (BMS).BMS and battery packs are crucial to the development of EVs into the best commercial and technical alternative to gasoline-powered vehicles. BMS ensures a safe operating range while simultaneously extending battery life and improving battery performance. BMS's State of Charge (SOC) monitoring and cell voltage balancing are two important functions. An Arduino-Nano controller-based passive cell balancing method for lithium-ion (Li-Ion) batteries is the primary focus of this paper's design and analysis. The passive cell balancing mechanism and the Coulomb counting method were used to simulate the SOC estimation in MATLAB, and the results were analysed in this paper.