Interleaved DC/DC Converter with Soft Switching Based on Distributed Partially Coupled Integrated Inductors

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI:10.1002/tee.70001

Liang Qian, Shuhai Quan, Yinfeng Zhao, Jingxiang Gao

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引用次数: 0

Abstract

The power of DC/DC converters can be significantly improved using interleaved DC/DC converters. The losses in power switching are significantly reduced using a resonant circuit composed of inductors and other components, which is a useful method for improving efficiency. A growing number of studies are focused on coupled inductors for interleaved DC/DC converters, which can increase the gravimetric power density and reduce the number of inductors. Power-inductor and resonant-inductor coupling in single-phase converters has been proposed by some researchers, but few studies have addressed the power-inductor and resonant-inductor coupling in multiphase converters. Therefore, a dual-phase interleaved DC/DC converter with distributed coupled inductors and passive soft-switching is proposed in this paper. The operation process, condition of soft switching, design method, and structure of the distributed coupled inductor are described. A 30 kW, 20 kHz dual interleaved insulated gate bipolar transistor prototype was built, and a power density of 5.15 kW/kg was achieved, attaining 97.18% efficiency at 30 kW. The results of Simulink and experiments reveal that the converter is effective and has the advantages of high power density and high efficiency. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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基于分布式部分耦合集成电感的软开关交错DC/DC变换器

采用交错DC/DC转换器可以显著提高DC/DC转换器的功率。采用由电感和其他元件组成的谐振电路，大大降低了功率开关的损耗，是提高效率的有效方法。用于交错DC/DC变换器的耦合电感的研究越来越多，它可以提高重量功率密度并减少电感的数量。单相变换器中的功率电感和谐振电感耦合已经被一些研究者提出，但对多相变换器中的功率电感和谐振电感耦合的研究还很少。因此，本文提出了一种具有分布式耦合电感和无源软开关的双相交错DC/DC变换器。介绍了分布式耦合电感的工作过程、软开关条件、设计方法和结构。建立了一个30 kW、20 kHz的双交错绝缘栅双极晶体管样机，实现了5.15 kW/kg的功率密度，在30 kW时效率达到97.18%。Simulink仿真和实验结果表明，该变换器具有功率密度高、效率高等优点。©2025日本电气工程师协会和Wiley期刊有限责任公司。

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来源期刊

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.