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Design of energy-saving adaptive fast-charging control strategy for Li-Fe-PO4 battery module

机译:Li-Fe-PO 4 电池模块节能自适应快速充电控制策略设计

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摘要

In this study, an energy-saving adaptive fast-charging strategy is developed and applied to a Li-FePO4 battery module. In this strategy, there are three options including an adaptive constant current (CC)/constant voltage (CV) control scheme, an adaptive variable current (VC) control scheme, and an adaptive current-voltage control scheme to be selected by the user. The objectives of fast charging and energy saving can be simultaneously achieved by the well-designed circuit components in a charge circuit (i.e. a boost converter) plus the proposed adaptive fast-charging strategy. In this study, the maximum conversion efficiency of the boost converter is 97.7- and its average conversion efficiency is over 95-. Moreover, the charge speed and energy saving of a CC/CV framework with a conventional proportional-integral control scheme can be enhanced to reach uppermost 19.2 and 1.33- improvement rates by the adaptive current-voltage control scheme and the adaptive VC control scheme, respectively.
机译:本研究开发了一种节能自适应快速充电策略,并将其应用于Li-FePO 4 电池模块。在该策略中,存在三个选项,其中包括要由用户选择的自适应恒流(CC)/恒压(CV)控制方案,自适应可变电流(VC)控制方案和自适应电流-电压控制方案。快速充电和节能的目标可以通过充电电路(即升压转换器)中精心设计的电路组件以及建议的自适应快速充电策略来同时实现。在这项研究中,升压转换器的最大转换效率为97.7-,其平均转换效率超过95-。此外,采用自适应比例-电压控制方案的CC / CV框架的充电速度和节能可以通过自适应电流-电压控制方案和自适应VC控制方案分别提高到最高的19.2和1.33-改善率。 。

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