An Integrated Four-Port DC/DC Converter for Renewable Energy Applications
An Integrated Four-Port DC/DC Converter for Renewable Energy Applications
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DOI：
10.1109/tpel.2010.2043119
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发表时间：
2010-02
影响因子：
6.7
通讯作者：
Z. Qian;O. Abdel-Rahman;I. Batarseh
中科院分区：
文献类型：
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作者：
Z. Qian;O. Abdel-Rahman;I. Batarseh
本文提出了一种新型的转换器拓扑结构，它连接四个电源端口：两个电源端口、一个双向存储端口和一个隔离负载端口。所提出的四端口DC/DC转换器是通过在传统的半桥拓扑结构上简单地增加两个开关和两个二极管而得到的。四个主开关管均实现了零电压开关。四个端口中的三个可以通过调整其独立的占空比值来严格控制，而第四个端口则不受控制，以维持系统的功率平衡。给出了电路分析和设计注意事项，并给出了动态建模和闭环设计指导。实验结果验证了所提出的拓扑结构，并证实了其能够实现对三条功率处理路径的严格独立控制。这种拓扑结构有望显著节省可再生能源集电系统的组件数量和损耗。
This paper proposes a novel converter topology that interfaces four power ports: two sources, one bidirectional storage port, and one isolated load port. The proposed four-port dc/dc converter is derived by simply adding two switches and two diodes to the traditional half-bridge topology. Zero-voltage switching is realized for all four main switches. Three of the four ports can be tightly regulated by adjusting their independent duty-cycle values, while the fourth port is left unregulated to maintain the power balance for the system. Circuit analysis and design considerations are presented; the dynamic modeling and close-loop design guidance are given as well. Experimental results verify the proposed topology and confirm its ability to achieve tight independent control over three power-processing paths. This topology promises significant savings in component count and losses for renewable energy power-harvesting systems.