Series–parallel connected Li-ion battery string is an inevitable component of electric/hybrid electric vehicle (EV/HEV). One of the common concerns of battery system is charge imbalance among the series connected batteries, which leads to over voltage/under voltage stress, reduced cycle life and even fire hazard. To overcome these issues, various cell balancing circuits have been developed during the past years, in which most of these circuits have failed to consider state of charge (SOC), the unavoidable parameter in battery balancing. This paper proposes a novel fuzzy-based mono circuitry for balancing cells arranged in module, considering SOC variations of battery. The performance of the proposed method is validated under MATLAB/Simulink environment by considering twelve cells arranged in four modules. Through this new topology, balancing can be achieved in a fast and an efficient manner.

中文翻译：

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使用用于电动汽车应用的单声道电路的基于模糊的集成模块化电池平衡

串并联锂离子电池组是电动/混合动力汽车（EV/HEV）不可或缺的组成部分。电池系统常见的问题之一是串联电池之间的电荷不平衡，这会导致过压/欠压应力、循环寿命缩短甚至火灾危险。为了克服这些问题，在过去几年中开发了各种电池平衡电路，其中大多数电路未能考虑充电状态 (SOC)，这是电池平衡中不可避免的参数。本文提出了一种新的基于模糊的单声道电路，用于平衡模块中排列的电池，考虑到电池的 SOC 变化。通过考虑排列在四个模块中的十二个单元，在 MATLAB/Simulink 环境下验证了该方法的性能。通过这种新拓扑，