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首页> 外文期刊>IEEE Transactions on Power Electronics >A Family of Quasi-Switched-Capacitor Circuit-Based Dual-Input DC/DC Converters for Photovoltaic Systems Integrated With Battery Energy Storage
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A Family of Quasi-Switched-Capacitor Circuit-Based Dual-Input DC/DC Converters for Photovoltaic Systems Integrated With Battery Energy Storage

机译:基于准开关电容器电路的双输入DC / DC转换器系列,用于集成了电池能量存储的光伏系统

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摘要

In this paper, a family of bidirectional dual-input dc/dc converters is proposed to combine a photovoltaic system and battery energy storage system. This family of converters utilizes a full-bridge, or half-bridge current-source circuit, as the primary side, and a quasi-switched-capacitor circuit as the secondary side. Depending on the power level of the primary side and voltage level of the battery, different topologies can be selected. Compared to other bidirectional multiple-input dc/dc converters with galvanic isolation, this family of converters requires less switches and passive components, reduces voltage stress on switches, and realizes soft switching for all switches. The operation principle of the converter is presented, and a power sharing strategy between two input sources is proposed. A 2-kW full-bridge circuit prototype is built in the lab, based on Gallium Nitride (GaN) switching devices. Simulation and experimental results are also presented to verify the theoretical analysis.
机译:本文提出了一个双向双向输入dc / dc转换器系列,以结合光伏系统和电池储能系统。该系列转换器使用全桥或半桥电流源电路作为初级侧,并使用准开关电容器电路作为次级侧。根据原边的功率水平和电池的电压水平,可以选择不同的拓扑。与其他具有电流隔离的双向多输入dc / dc转换器相比,该系列转换器需要更少的开关和无源组件,减少了开关上的电压应力,并实现了所有开关的软开关。提出了转换器的工作原理,并提出了两个输入源之间的功率共享策略。在实验室中,基于氮化镓(GaN)开关器件构建了2kW全桥电路原型。仿真和实验结果也被提出来验证理论分析。

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