工业应用的锂离子电池充电状态估计策略

IF 1 4区工程技术 Q4 ENERGY & FUELS

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-02-22 DOI:10.1680/jener.22.00056

Zilong Chen, Wenjun Liao, Pingfei Li, Jinhui Tan, Yuping Chen

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引用次数: 1

摘要

锂离子电池的荷电状态估计对电池组的安全可靠运行至关重要。在工业上，通常采用安培-小时积分加开路电压策略来估计充电状态。然而，开路电压的使用要求非常高，需要几个小时。本文提出了一种新的充电状态估计策略，可以对电池运行过程中的充电状态进行校正，以消除安时积分的累积误差。具体来说，当电池的电流在一段时间内为恒流，或者在充电或放电时变化较小时，可以根据其电压来纠正充电状态。本文进行了详细的理论分析，并搭建了实验平台进行测试。

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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Lithium-ion battery state of charge estimation strategy for industrial applications

The state of charge estimation of lithium-ion batteries is very important for the safe and reliable operation of the battery pack. In the industry, the ampere-hour integration plus open-circuit voltage strategy is usually used to estimate the state of charge. However, the use of open-circuit voltage is very demanding, requiring several hours. In this paper, a new estimation strategy is proposed, which can calibrate state of charge during battery operation to eliminate the accumulated error of ampere-hour integration. Specifically, when the current of the battery is constant current for a period, or the change is small while charging or discharging, the state of charge can be corrected according to its voltage. The detailed theoretical analysis is given in this paper and an experimental platform is built for testing.

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来源期刊

Proceedings of the Institution of Civil Engineers-Energy ENERGY & FUELS-

CiteScore

3.00

自引率

18.20%

发文量

期刊介绍： Energy addresses the challenges of energy engineering in the 21st century. The journal publishes groundbreaking papers on energy provision by leading figures in industry and academia and provides a unique forum for discussion on everything from underground coal gasification to the practical implications of biofuels. The journal is a key resource for engineers and researchers working to meet the challenges of energy engineering. Topics addressed include: development of sustainable energy policy, energy efficiency in buildings, infrastructure and transport systems, renewable energy sources, operation and decommissioning of projects, and energy conservation.