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首页> 外文会议>International Conference on Sustainable Energy, Environment and Information Engineering >Investigation on Early-stage Internal Short Circuit Identification for Power Battery Pack
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Investigation on Early-stage Internal Short Circuit Identification for Power Battery Pack

机译：电力电池组早期内部短路识别研究

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摘要

The spontaneous internal short circuit is a very important way for the thermal runaway of lithium-ion battery. Identification of the internal short circuit accurately and in time during the working process is critical for the safety of lithium-ion battery. In this study, a modified algorithm for the early-stage internal short circuit identification is investigated. This method is based on the mean-difference model and the recursive least square algorithm. An equivalent experiment is setup to validate the feasibility of this method for the identification of early-stage internal short circuit. The results indicate that this method can identify the internal short circuit only when the SOC is very low. For ordinary operation conditions of the power battery pack, this method is not suitable for early-stage internal short circuit identification.
机译：自发内部短路是锂离子电池热失控的一个非常重要的方式。在工作过程中精确且及时识别内部短路对于锂离子电池的安全至关重要。在该研究中，研究了一种用于早期内部短路识别的改进算法。该方法基于平均差模和递归最小二乘算法。设置了等效实验，以验证该方法的可行性，以识别早期内部短路。结果表明，该方法仅在SOC非常低时才能识别内部短路。对于电动电池组的普通操作条件，该方法不适用于早期内部短路识别。

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