| 低压条件下分布式储能系统锂离子电池燃烧失控风险预警 |
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| 引用本文： | 李志雷,沈学良,刘海峰,杨欣可,沙云鹏.低压条件下分布式储能系统锂离子电池燃烧失控风险预警[J].机械与电子,2021,39(6):19-23. |
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| 作者姓名： | 李志雷 沈学良 刘海峰 杨欣可 沙云鹏 |
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| 作者单位： | １． 国网雄安新区供电公司,河北 雄安新区 ０７１０００ ;?２． 平高集团有限公司,河南 平顶山 ４６７０００ |
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| 摘 要： | 为解决锂离子电池燃烧失控时预警不及时的问题,构建低压条件下分布式储能系统锂离子电池燃烧失控风险预警模型.根据热失控扩展传递方式,提取低压条件下锂离子电池热失控扩展规律.识别过充电热失控风险,建立燃烧失控风险指标体系.确定预警指标权重,构建风险预警模型.实验结果表明,与 ２ 种传统模型相比,所设计风险预警模型的预警速度分别快了３.４８ s 和７.６４ s .由此可见,该研究为供电公司运作安全提供更可靠的技术保障.
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| 关 键 词： | 低压条件 分布式储能系统 锂离子电池 燃烧失控风险 预警模型 |
Risk Warning of Lithium ion Battery Combustion Out of Control in Distributed Energy Storage System under Low Pressure |
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| LI Zhilei,SHEN Xueliang,LIU Haifeng,YANG Xinke,SHA Yunpeng.Risk Warning of Lithium ion Battery Combustion Out of Control in Distributed Energy Storage System under Low Pressure[J].Machinery & Electronics,2021,39(6):19-23. |
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| Authors: | LI Zhilei SHEN Xueliang LIU Haifeng YANG Xinke SHA Yunpeng |
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| Affiliation: | (１．State Grid Xiong ’ an New Area Electric Power Supply Company , Xiong ’ an New Area ０７１０００ , China ;２．Pinggao Group Co．, Ltd． , Pingdingshan ４６７０００ , China ） |
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| Abstract: | In order to solve the problem that the warning is not timely when the lithium ion battery is burning out of control , the early-warning model of uncontrolled combustion risk of lithium ion battery in distributed energy storage system under low pressure is constructed．According to the thermal runaway propagation mode , the thermal runaway propagation rule of lithium ion battery under low pressure condition was extracted．The risk of out-of-control charging heat is identified and the index system of out-of-control combustion risk is established．The weight of early warning index is determined and a risk early warning model is built.The experimental results show that compared with the two traditional models , the warning speed of the risk warning model is ３.４８ s and ７.６４ s respectively．The study provides a more reliable technical guarantee for the safety of supply companies． |
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| Keywords: | low pressure condition distributed energy storage system lithium ion battery risk of combustion out of control early warning model |
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