Technical Comparison between Lead-acid and Lithium-ion Batteries Used in Microgrid UPS System

2023 IEEE IAS Global Conference on Renewable Energy and Hydrogen Technologies (GlobConHT) Pub Date : 2023-03-11 DOI:10.1109/GlobConHT56829.2023.10087466

Adnan Shafee, M. M. Hossain, Lia Moni, Khandoker Mainul Islam, Shameem Ahmad, Sujan Howlader, Mohammad Zohurul Islam, Mahamudul Hashan Antor, S. Mekhilef

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Abstract

An uninterruptible power supply (UPS) in microgrid application uses battery to protect important loads against utility-supplied power issues such as spikes, brownouts, fluctuations, and power outages. UPS system typically employs lead-acid batteries instead of lithium-ion (Li-ion), even though Li-ion battery possesses advantages over lead-acid. This paper aims to investigate the performance of the two batteries for UPS system so that a conclusion on which battery is appropriate for UPS application can be drawn. The comparison is conducted based on state of charge (SOC) for both charging and discharging, voltage and current values, and heating effect. Two software namely COMSOL and MATLAB/Simulink have been used to investigate the performance of the two batteries. From the simulation results it has been observed that for microgrid's UPS application, Li-ion batteries overall performance is much better than Lead-acid battery.

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微电网UPS系统中铅酸电池与锂离子电池的技术比较

微电网应用中的不间断电源(UPS)使用电池来保护重要负载免受公用事业供电问题的影响，如尖峰、限电、波动和停电。UPS系统通常采用铅酸电池而不是锂离子电池(Li-ion)，尽管锂离子电池具有优于铅酸电池的优点。本文旨在研究这两种电池在UPS系统中的性能，从而得出哪种电池适合UPS应用的结论。基于充电和放电的荷电状态(SOC)、电压和电流值以及热效应进行了比较。利用COMSOL和MATLAB/Simulink两种软件对两种电池的性能进行了研究。从仿真结果可以看出，对于微电网的UPS应用，锂离子电池的整体性能远优于铅酸电池。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 IEEE IAS Global Conference on Renewable Energy and Hydrogen Technologies (GlobConHT)

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