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A Dual-Current-Fed Dual-Active-Bridge DC/DC Converter With High-Frequency Current-Ripple-Friendly Ports
IEEE Transactions on Power Electronics ( IF 6.7 ) Pub Date : 2022-08-04 , DOI: 10.1109/tpel.2022.3196328
Yue Zhang 1 , Li Ding 1 , Nie Hou 1 , Yunwei Li 1
Affiliation  

The current-fed isolated dc/dc converters are suitable solutions for applications requiring low high-frequency current ripple and convenient current control, such as fuel cells and Li-ion batteries. The existing current-fed isolated dc/dc converters are combined with a current-fed bridge-type terminal and a voltage-fed bridge-type terminal, which can only partially obtain the merits of the current-fed terminals. In this article, a dual-current-fed dual-active-bridge dc/dc converter is proposed with the inductor connection on both terminals. Hence, low high-frequency current ripple and convenient current control can be realized on both sides. Besides, it can also realize the voltage spike suppression without snubber circuits and has the inherent soft-switching operation and voltage boost function. Then, the operation principle, design process, and loss analysis of the proposed converter are presented in detail. The experimental results based on a proof-of-concept laboratory prototype are given to verify the steady-state and dynamic performance of the proposed converter.

中文翻译:

具有高频电流纹波友好端口的双电流馈电双有源桥 DC/DC 转换器

电流馈电隔离式 DC/DC 转换器适用于需要低高频电流纹波和方便电流控制的应用,例如燃料电池和锂离子电池。现有的电流馈电隔离式dc/dc转换器结合了电流馈电桥式端子和电压馈电桥式端子,只能部分获得电流馈电端子的优点。在本文中,提出了一种双电流馈电双有源桥 DC/DC 转换器,其两端均连接电感器。因此,可以在两侧实现低高频电流纹波和方便的电流控制。此外,它还可以在没有缓冲电路的情况下实现电压尖峰抑制,并具有固有的软开关操作和升压功能。然后,操作原理,设计过程,并详细介绍了所提出的转换器的损耗分析。给出了基于概念验证实验室原型的实验结果,以验证所提出转换器的稳态和动态性能。
更新日期:2022-08-04
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