The reconfigurable equilibrium circuit can take account of the number of components and the conversion efficiency and can easily balance every single cell in the battery pack, but the voltage of the battery pack will fluctuate when the battery pack is balanced. To solve this problem, a reconfigurable equalization circuit with an additional power supply is proposed. By replacing the cell with the additional power supply, the purpose of stabilizing the voltage of the battery pack is achieved. Aiming at the additional power supply, this paper puts forward a method that the additional power supply participates in the charging (discharging) process when the SOC (state of charge) of the battery pack is not lower (higher) than the additional power supply while the battery pack is charging (discharging), to make the charge and discharge capacity of the additional power supply always better than the battery pack. The experimental results show that the proposed equalization circuit can not only retain the advantages of the traditional reconfigurable equilibrium circuit but also maintain the voltage of the battery pack in the equalization process.

中文翻译：

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可重新配置的平衡电路，带有额外的电源

可重新配置的平衡电路可以考虑组件的数量和转换效率，并且可以轻松地平衡电池组中的每个单电池，但是当电池组达到平衡时，电池组的电压会发生波动。为了解决这个问题，提出了具有附加电源的可重构均衡电路。通过用额外的电源替换电池，可以达到稳定电池组电压的目的。针对附加电源，提出了一种在电池组的SOC（荷电状态）不低于（高于）附加电源的同时，附加电源参与充电（放电）过程的方法。电池组正在充电（正在放电），使附加电源的充电和放电容量始终优于电池组。实验结果表明，所提出的均衡电路不仅可以保持传统可重构均衡电路的优势，而且可以在均衡过程中保持电池组的电压。