A triple-LC-based DC/DC converter with wide input voltage gain in both under-resonance and over-resonance frequency regions

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-25 DOI:10.1049/pel2.12731

Chunguang Ren, Yue Qin, Jiansheng Kong, Xinqi Li, Yue Hui, Xiaoqing Han, Xiangning He

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Abstract

In recent years, wide voltage range DC/DC converters have been widely used in telecom power, solar generation and electric vehicle charger applications. Based on this, a new multi-resonant converter with wide input voltage is proposed here. Compared with the traditional LLC converter, the proposed converter can maintain the output voltage within a narrow frequency regulation range in both under-resonance and over-resonance areas. Thus, a wide voltage range can be realized without additional switch components or complex control strategies. The topology and the corresponding working principle of the proposed converter are introduced. In addition, the equivalent model by considering the fundamental wave is established and the influence of the resonance parameters on the voltage gain characteristic is analysed in detail. With these considerations, the resonance parameters are designed. Finally, a 500 W experiment platform is established to verify the effectiveness and feasibility of the proposed converter.

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在欠谐振和过谐振频率区域均具有宽输入电压增益的基于三LC 的 DC/DC 转换器

近年来，宽电压范围 DC/DC 转换器已广泛应用于电信电源、太阳能发电和电动汽车充电器等领域。在此基础上，本文提出了一种新型宽输入电压多谐振转换器。与传统的 LLC 转换器相比，所提出的转换器在欠谐振和过谐振区域都能将输出电压维持在较窄的频率调节范围内。因此，无需额外的开关元件或复杂的控制策略，就能实现宽电压范围。本文介绍了拟议转换器的拓扑结构和相应的工作原理。此外，还建立了考虑基波的等效模型，并详细分析了谐振参数对电压增益特性的影响。基于这些考虑，设计了谐振参数。最后，建立了一个 500 W 的实验平台，以验证所提转换器的有效性和可行性。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.