An Improved Interleaved Boost Converter with Enhanced Power Density and Efficiency Using Single Zero Voltage Transition Soft Switching Cell for Fuel Cell Electric Vehicles

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Seung Hyun Kang, Yun Seong Hwang, Man Jae Kwon, Byoung Kuk Lee
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Abstract

This paper proposes an improved interleaved boost converter with a single zero voltage transition (ZVT) soft switching cell (IBSC) to achieve high power density and efficiency. By applying the single ZVT soft switching cell to the interleaved structure, the volume of the converter can be reduced compared to the multi ZVT soft switching cell that has a soft switching cell for each phase. Furthermore, the efficiency of the converter can also be increased because each phase can achieve soft switching regardless of the number of phases. This paper provides a detailed analysis of the operating principle based on the duty of the main switch (Sm) and the design method for resonant parameters using the equivalent circuit of Sm. To verify the feasibility, a 3 kW prototype IBSC is designed and implemented. Based on the experimental results, the volume of the soft switching converter decreased by 29.84%, while its efficiency increased by 0.4% compared to the conventional hard switching converter. Therefore, it is confirmed that the proposed IBSC has advantages in terms of power density and efficiency.

Abstract Image

使用单零电压转换软开关单元的改进型交错升压转换器,可提高燃料电池电动汽车的功率密度和效率
本文提出了一种采用单零电压转换(ZVT)软开关单元(IBSC)的改进型交错升压转换器,以实现高功率密度和高效率。通过在交错结构中应用单 ZVT 软开关单元,与每相都有一个软开关单元的多 ZVT 软开关单元相比,转换器的体积可以减小。此外,由于无论相数多少,每相都能实现软开关,因此还能提高变流器的效率。本文详细分析了基于主开关(Sm)占空比的工作原理,以及利用 Sm 的等效电路设计谐振参数的方法。为了验证其可行性,设计并实现了一个 3 kW 的 IBSC 原型。根据实验结果,与传统的硬开关转换器相比,软开关转换器的体积减少了 29.84%,而效率提高了 0.4%。因此,可以确认所提出的 IBSC 在功率密度和效率方面具有优势。
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
Journal of Electrical Engineering & Technology
Journal of Electrical Engineering & Technology ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
4.00
自引率
15.80%
发文量
321
审稿时长
3.8 months
期刊介绍: ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies. The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.
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