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一种锂离子电池低温SOC估计算法

, PP. 53-58

Keywords: 磷酸铁锂电池,SOC估算,低温,安时法

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Abstract:

电动汽车在低温地区工作运行,电池组的性能会下降,低温对电池组充放电容量的影响比较大。为了使电动汽车在低温地区能够正常工作,低温下准确的SOC估计是必不可少的条件。本文提出了一种改进安时计量法适用于不同温度条件的电池SOC估计算法,该算法主要考虑了不同温度下电池实际可用容量的变化对SOC估计的影响,并且可以对不同温度下估算的SOC进行换算。通过平台实验验证,该算法在不同的温度环境下具有较高的精度。

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