使用压敏电阻对LiFePO4电池进行浪涌保护的挑战

IF 0.9 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Konstantinos M. Gektidis;Thomas Tsovilis
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引用次数: 0

摘要

这封信检查了与锌铝压敏电阻并联连接的单电池磷酸铁锂(${\mathrm {LiFePO}}_{4}$)电池的电流共享行为,旨在防止快速前冲击电流。通过实验数据分析和ATP-EMTP模拟,研究了保护压敏电阻堆和圆柱形电池在浪涌事件下的瞬态行为。考虑的关键因素包括确定转移到压敏电阻和电池的电荷以及它们两端的电压。研究结果强调了与浪涌保护相关的挑战,这些挑战威胁到现代储能系统的可靠性和寿命,特别是在防御雷击和电磁脉冲方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Challenge of Surge Protection for LiFePO4 Batteries Using Varistors
This letter examines the current-sharing behavior of a single-cell lithium iron phosphate ( ${\mathrm { LiFePO}}_{4}$ ) battery connected in parallel with a zinc-aluminum varistor, aimed at protecting against fast-front impulse currents. Through experimental data analysis and ATP-EMTP simulations, the study explores the transient behavior of the protective varistor stack and the cylindrical ${\mathrm { LiFePO}}_{4}$ battery under surge events. Key factors considered include the determination of charge transferred to both the varistor and the battery as well as the voltage across their terminals. The findings highlight the challenges associated with surge protection against fast-front transients that threaten the reliability and lifespan of modern energy storage systems, particularly in safeguarding against lightning strikes and electromagnetic pulses.
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