锂离子动力电池的智能均衡控制策略研究

Research of An Intelligent Equalization Control Strategy of Li-Ion Traction Battery

对于串联锂离子电池的均衡问题,我们提出了一中基于模糊逻辑控制的智能电池均衡方案。该电池均衡方案是由一个带有能量转移电容双向的DC-DC控制器,这个能量转移电容可以用于设计能量均衡系统中的无损耗均衡器。仿真和实验的结果表明锂离子电池组的均衡性能良好。模糊逻辑均衡控制策略可以减少32%的均衡时间。

An intelligent battery equalization scheme based on fuzzy logic control is presented to adaptively control the equalizing process of series-connected li-ion batteries.The proposed battery equalization scheme is a bidirectional DC-DC converter with energy transferring capacitor that can be used to design the bidirectional nondissipative equalizer for a battery balancing system.The simulation and experimental results show the advantage of the predicted equalizing performance of the lithium-ion battery stacks.The proposed fuzzy logic control battery equalization controller can abridge the equalization time about 32%.