Reverse power transmission of two-transformer active clamp forward flyback converter

IF 1.3 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Power Electronics Pub Date : 2024-07-25 DOI:10.1007/s43236-024-00882-6
Hanhim Sung, Jong-Won Shin, Wonhee Kim
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Abstract

A two-transformer active clamp forward flyback (ACFF) converter without output inductors is suitable for high output current applications such as low-voltage DC-DC converters (LDCs) in electrified vehicles. This paper presents the reverse power transmission operation of an ACFF converter used Synchronous Rectifier (SR). One of the target applications of the proposed converter is bidirectional LDCs used in electrified vehicles due to its high-power density and cost competitiveness. Operational principles with key voltage and current waveforms are provided, and a detailed analysis of each operating interval is provided, offering guidelines for component selection. Experimental results obtained from a 14 V–600 V hardware prototype verifies the feasibility of operation in practical LDCs.

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双变压器有源钳位正激式反激变换器的反向功率传输
无输出电感器的双变压器有源箝位正激式反激(ACFF)转换器适用于高输出电流应用,如电气化车辆中的低压直流-直流转换器(LDC)。本文介绍了使用同步整流器 (SR) 的 ACFF 转换器的反向功率传输操作。由于具有高功率密度和成本竞争力,拟议转换器的目标应用之一是电气化车辆中使用的双向 LDC。本文提供了带有关键电压和电流波形的工作原理,并对每个工作区间进行了详细分析,为元件选择提供了指导。从 14 V-600 V 硬件原型获得的实验结果验证了实用 LDC 运行的可行性。
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来源期刊
Journal of Power Electronics
Journal of Power Electronics 工程技术-工程:电子与电气
CiteScore
2.30
自引率
21.40%
发文量
195
审稿时长
3.6 months
期刊介绍: The scope of Journal of Power Electronics includes all issues in the field of Power Electronics. Included are techniques for power converters, adjustable speed drives, renewable energy, power quality and utility applications, analysis, modeling and control, power devices and components, power electronics education, and other application.
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