Integrated Multi-Input Bi-Directional DC-DC Converter for Hybrid Energy Storage Systems

IF 5.9 2区工程技术 Q2 ENERGY & FUELS

CSEE Journal of Power and Energy Systems Pub Date : 2026-03-01 Epub Date: 2023-12-28 DOI:10.17775/CSEEJPES.2022.01000

Jun Cai;Xu Peng;Xin Zhang;Zhiquan Deng

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引用次数: 0

Abstract

Multi-input bidirectional DC-DC converter is quite vital for a single system to interface multiple sources and allow energy exchange between sources and loads. In this paper, a general multi-input DC-DC converter topology and its control strategy are proposed for hybrid energy storage system. This converter can connect any number of power sources and make any ports controllable bidirectionally. To interface $N$ power sources, only $N+1$ controllable power switches are needed, which makes converter more compact with largely reduced power devices and driving circuits. Without loss of generality, a case with two sources $(N=2)$ is utilized as a typical study case for experimental verification. Experimental results show this converter can interface two individual power sources simultaneously and ensure flexible power flow control with all ports bi-directionally. $N=2$ converter structure can be developed as an integrated converter module, which is able to combine with traditional bidirectional buck/boost DC-DC converter (BBDC) to construct series-connected or parallel connected integrated converters for multi-source applications.

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混合储能系统的集成多输入双向DC-DC变换器

多输入双向DC-DC变换器是单一系统中连接多个电源，实现电源和负载之间能量交换的重要器件。本文提出了一种用于混合储能系统的通用多输入DC-DC变换器拓扑结构及其控制策略。该转换器可以连接任意数量的电源，并使任何端口双向可控。为了连接$N$电源，只需要$N+1$可控功率开关，这使得变换器更加紧凑，大大减少了功率器件和驱动电路。在不丧失一般性的前提下，我们采用两个源$(N=2)$作为典型研究案例进行实验验证。实验结果表明，该转换器可以同时连接两个独立的电源，并保证了所有端口的双向灵活的潮流控制。$N=2$变换器结构可开发为集成变换器模块，可与传统的双向降压/升压DC-DC变换器（BBDC）相结合，构成串联或并联的集成变换器，适用于多源应用。

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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来源期刊

CSEE Journal of Power and Energy Systems Energy-Energy (all)

CiteScore

11.80

自引率

12.70%

发文量

389

审稿时长

26 weeks

期刊介绍： The CSEE Journal of Power and Energy Systems (JPES) is an international bimonthly journal published by the Chinese Society for Electrical Engineering (CSEE) in collaboration with CEPRI (China Electric Power Research Institute) and IEEE (The Institute of Electrical and Electronics Engineers) Inc. Indexed by SCI, Scopus, INSPEC, CSAD (Chinese Science Abstracts Database), DOAJ, and ProQuest, it serves as a platform for reporting cutting-edge theories, methods, technologies, and applications shaping the development of power systems in energy transition. The journal offers authors an international platform to enhance the reach and impact of their contributions.