高电压技术2023，Vol.49Issue(12)：5187-5195,9.DOI:10.13336/j.1003-6520.hve.20221220
磷酸铁锂电池在储能预制舱中的火灾模拟及其消防应急技术仿真研究
Fire Accident Simulation and Fire Emergency Technology Simulation of Lithium Iron Phos-phate Battery in Prefabricated Compartment for Energy Storage Power Station
摘要
Abstract
With the large-scale construction and operation of electrochemical energy storage power stations,fire accidents in energy storage power stations occur frequently,causing serious damage for life and property.Therefore,it is urgent to study the thermal runaway mechanism and its corresponding suppression technology for lithium battery energy storage systems in energy storage power stations to ensure the safety and stability of energy storage power stations.Firstly,in or-der to establish a reliable thermal runaway model of lithium battery,an updated dichotomy methodology was proposed and used to revise the standard heat release rate to accord the surface temperature of the lithium battery in simulation.Then,the geometric models of battery cabinet and prefabricated compartment of the energy storage power station were constructed based on their real dimensions,and applied to the simulation of fire accident.Three stages,namely,initial heating stage,flame generation stage and flame propagation stage,were observed and corresponding characteristic pa-rameters were obtained from the fire accident simulation.Finally,the fire emergency technology including fire alarm and water mist fire extinguishing system was studied.The results show that the infrared beam linear smoke detector can give the fastest warning response to the fire.Besides,the optimal parameters for water mist fire extinguishing system are ob-tained.The research results can not only provide reasonable methods and theoretical guidance for the numerical simulation of lithium battery thermal runaway,but also provide theoretical data for safety fire protection design of elec-trochemical energy storage station.关键词
磷酸铁锂电池/热失控/储能电站/预制舱/消防应急技术/热蔓延Key words
lithium iron phosphate battery/thermal runaway/energy storage power station/prefabricated compartment/fire emergency technology/heat spread引用本文复制引用
禹进,郭川钰,张伟阔,刘念,蒋旭辉,罗樟..磷酸铁锂电池在储能预制舱中的火灾模拟及其消防应急技术仿真研究[J].高电压技术,2023,49(12):5187-5195,9.基金项目
国家自然科学基金(52006020) （52006020）
重庆市自然科学基金(CSTB2023NSCQ-MSX0833).Project supported by National Natural Science Foundation of China(52006020),Natural Science Foundation of Chongqing(CSTB2023NSCQ-MSX0833). （CSTB2023NSCQ-MSX0833）
