부산대학교 도서관

Due to the important role of electric vehicles in society, it becomes mandatory to improve battery longevity and power capacity. Such requirements can be achieved with the improvement of Battery Management Systems (BMS). Conventional BMS have low cell balancing current, leading to a long time to complete this process. This work presents the architecture of a modular BMS, to be used with four cells and above, enabling high balancing current Using a battery pack with four Lithium-ion, experimental tests were conducted to evaluate the performance of a common BMS and the proposed high current BMS. The proposed BMS has achieved a maximum balancing current almost 5 times higher. Comparative results demonstrate and validate the effectiveness of the proposed approach, with a great potential to optimize the use of Lithium Cells both in 12 V to 48 V low voltage systems and in high voltage and capacity traction batteries in electric and hybrid vehicles.