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arXiv 1604.01293eess.SYcs.SY
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锂离子电池等效电路模型参数的全局敏感性分析

Global sensitivity analysis of battery equivalent circuit model parameters

University of Oxford(牛津大学)

Shi Zhao, David A. Howey

AI总结:

本文利用Morris方法研究了锂离子电池等效电路模型参数对输出电压的敏感性,发现部分参数变化对电压输出影响小,可视为常数以提高模型精度。

摘要:

本文考虑了最常用的锂离子电池等效电路模型(ECMs),利用Morris方法研究了模型输出对参数变化的敏感性。在镍锰钴氧化物(NMC)电极的锂离子电池中,进行了SOC范围[100%,10%]内的参数识别实验。尽管所有模型参数随SOC变化,但全局敏感性分析表明,某些参数的不确定性对电压输出影响很小,暗示这些参数可视为常数而不影响模型精度。这一结论通过实验验证得以进一步确认。

英文摘要:

This paper considers one of the most commonly used equivalent circuit models (ECMs) for lithium-ion batteries and investigates the sensitivity of the model output to changes of model parameters using the Morris method. Experiments are carried out on a lithium-ion cell with nickel manganese cobalt oxide (NMC) electrode and parameters of the model are identified in the state of charge (SOC) range [100%,10%]. Although all the model parameters do vary with SOC, global sensitivity analysis reveals that the uncertainties of some of the parameters generate very little uncertainty in the voltage output, implying that those parameters can be taken as constants without compromising the accuracy of the model. This is further confirmed by experimental validation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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