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首页> 外文期刊>Journal of power sources >Simulation of lithium ion battery replacement in a battery pack for application in electric vehicles
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Simulation of lithium ion battery replacement in a battery pack for application in electric vehicles

机译：电动汽车电池组中锂离子电池更换的仿真

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摘要

The design and optimization of the battery pack in an electric vehicle (EV) is essential for continued integration of EVs into the global market. Reconfigurable battery packs are of significant interest lately as they allow for damaged cells to be removed from the circuit, limiting their impact on the entire pack. This paper provides a simulation framework that models a battery pack and examines the effect of replacing damaged cells with new ones. The cells within the battery pack vary stochastically and the performance of the entire pack is evaluated under different conditions. The results show that by changing out cells in the battery pack, the state of health of the pack can be consistently maintained above a certain threshold value selected by the user. In situations where the cells are checked for replacement at discrete intervals, referred to as maintenance event intervals, it is found that the length of the interval is dependent on the mean time to failure of the individual cells. The simulation framework as well as the results from this paper can be utilized to better optimize lithium ion battery pack design in EVs and make long term deployment of EVs more economically feasible. (C) 2017 Elsevier B.V. All rights reserved.
机译：电动汽车（EV）中电池组的设计和优化对于将EV继续集成到全球市场至关重要。最近，可重新配置的电池组备受关注，因为它们允许将损坏的电池从电路中移除，从而限制了它们对整个电池组的影响。本文提供了一个模拟框架，可以对电池组进行建模，并研究用新电池更换损坏的电池的效果。电池组中的电池单元随机变化，并且在不同条件下评估整个电池组的性能。结果表明，通过更换电池组中的电池单元，可以将电池组的健康状态始终保持在用户选择的某个阈值之上。在以离散间隔（称为维护事件间隔）检查电池更换的情况下，发现间隔的长度取决于单个电池的平均故障时间。仿真框架以及本文的结果可用于更好地优化电动汽车中的锂离子电池组设计，并使电动汽车的长期部署在经济上更加可行。 （C）2017 Elsevier B.V.保留所有权利。

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