Abstract
Poor battery state of health (SOH) or unit cell replacement of a damaged battery may cause an imbalance in the state of charge (SOC) or battery voltage terminal of electric vehicle (EV) batteries, which can negatively impact EV performance and EV batteries when charging. Battery Management System (BMS) monitor charges safely and efficiently. BMS can maximize battery life, can estimate SOC and State of health (SOH). EV Charger charge batteries individually in sequence (parallel) or, at once while in series connection. BMS cell balance controls battery charging in series or parallel using macro charging circuits. This study discusses series motor DC drive Electric Car (EC) Battery Management System (BMS) utilizing macro charging circuit and cell balancing control method. The MATLAB/Simulink software used to test the control algorithm shows that the proposed BMS cell balancing algorithm works effectively and meets our expectations.
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