Analysis, design, and reliability evaluation of a modified multi-port quasi-resonant converter with high gain

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-04-01 DOI:10.1049/pel2.12691

Sampath Harini, Chellammal Nallaperumal, Alireza Hosseinpour

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Abstract

High-gain converters play a vital role in all industrial applications such as automobiles, motor drives, renewable energy systems, and railway transportation sectors. The conventional converters have low gain owing to high-voltage stress on active MOSFET, diode and low efficiency related with high operating pulse ratio. To overcome the limitations associated with the conventional converters, this study proposes a non-isolated configuration of multiport quasi-resonant converter (MP-QRC) with high gain. The proposed MP-QRC has the merits of high-voltage gain, reduced number of components, minimum conduction losses, realization of soft switching in the devices and improved reliability. Moreover, the proposed converter is scalable and can serve as a good candidate in microgrid environment where the integration of more than one input is essential. In this paper, first a comprehensive analysis of various operation modes and design constraints are presented. Further, the study is supported with a reliability evaluation of proposed converter based on component failure. Also, the futuristic behaviour of MP-QRC under continuous conduction mode as a function of operational and environmental variables is investigated to ascertain the reliability. The steady-state operation of the converter is demonstrated for off-board electric vehilce (EV) charging using MATLAB/SIMULINK and experiments performed on a 300-W test rig.

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具有高增益的改进型多端口准谐振转换器的分析、设计和可靠性评估

高增益转换器在汽车、电机驱动、可再生能源系统和铁路运输等所有工业应用中都发挥着至关重要的作用。传统的转换器增益较低，原因是有源 MOSFET、二极管受到高压应力，以及工作脉冲比高导致效率低。为了克服传统转换器的局限性，本研究提出了一种非隔离配置的高增益多端口准谐振转换器（MP-QRC）。所提出的 MP-QRC 具有高电压增益、元件数量减少、传导损耗最小、器件实现软开关和可靠性提高等优点。此外，所提出的转换器还具有可扩展性，在需要集成多个输入的微电网环境中可作为理想的候选器件。本文首先对各种运行模式和设计限制进行了全面分析。此外，还根据组件故障情况对拟议的转换器进行了可靠性评估，为研究提供了支持。此外，还研究了 MP-QRC 在连续导通模式下的未来行为，并将其作为操作和环境变量的函数，以确定其可靠性。利用 MATLAB/SIMULINK 和在 300 瓦测试平台上进行的实验，演示了该转换器在车外电动汽车 (EV) 充电时的稳态运行情况。

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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.