A Multiple-Input Multiple-Output Bipolar DC-DC Voltage Gain Converter with Backup Battery Port

2019 International Conference on Engineering and Emerging Technologies (ICEET) Pub Date : 2019-02-01 DOI:10.1109/CEET1.2019.8711856

S. Khan, Laraib Saeed, Muhammad Yasir Ali Khan, J. Saleem, A. Majid

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引用次数: 3

Abstract

Photovoltaic (PV) arrays usually operate at a low voltage level. To integrate low renewable voltage with high voltage DC microgrid, a high gain DC converter is essential. Moreover, to enhance efficiency and reduce the cost, multiport converters play a pivotal role. Various topologies proposed in the literature achieve only low voltage gains from source to load. This paper presents a DC converter that achieves both a high gain output as well as multiport operation. The converter also integrates a storage device (battery) with renewable resource to provide backup in the absence of renewable energy. Bidirectional voltage flow is achieved through buck operation for battery charging. The proposed topology presents a four port converter with a voltage source, battery and asymmetric bipolar outputs, suitable for interfacing with DC microgrid and hybrid electric vehicles. Two inductors are used in the topology to achieve high voltage gain. Circuit operation, simulation, voltage gain and efficiencies are critically analyzed. Operation, design consideration and simulations at different levels of the proposed structure are presented.

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一个多输入多输出双极DC-DC电压增益转换器与备用电池端口

光伏(PV)阵列通常在低电压水平下运行。为了实现低可再生电压与高压直流微电网的集成，高增益直流变换器是必不可少的。此外，为了提高效率和降低成本，多端口转换器起着举足轻重的作用。文献中提出的各种拓扑结构只能实现从源到负载的低电压增益。本文提出了一种既能实现高增益输出又能实现多端口工作的直流变换器。转换器还集成了具有可再生资源的存储装置(电池)，以在没有可再生能源时提供备用。通过buck操作实现电池充电的双向电压流动。所提出的拓扑结构提出了一个具有电压源、电池和非对称双极输出的四端口转换器，适用于与直流微电网和混合动力汽车的接口。在拓扑结构中使用两个电感器来实现高电压增益。电路操作，仿真，电压增益和效率进行了严格的分析。介绍了该结构在不同层次上的运行、设计考虑和仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 International Conference on Engineering and Emerging Technologies (ICEET)

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