中国电机工程学报Issue(18)：2898-2905,8.DOI:10.13334/j.0258-8013.pcsee.2014.18.005
双向CLLLC谐振型直流变压器的分析与设计
Analysis and Design of Bidirectional CLLLC Resonant DC-DC Transformers
摘要
Abstract
A bidirectional full-bridge CLLLC resonant converter is proposed based on the LLC resonant converter due to its advantages in achieving high efficiency and high power density. The proposed converter is fully soft switched and totally snubberless. Aiming at the application to DC-DC transformers, an improved design method is proposed based on detailed analysis about CLLLC converter’s voltage gain characteristic, soft switching restriction and efficiency with the first harmonic approximation method. Finally, a prototype which interfaces 400~48 V dc buses with a power rating of 1kW was built. Using the prototype converter, experimental results were obtained to verify the performance of the proposed topology and design method. The highest applicable conversion efficiencies for the bidirectional operational modes exceed 95%.关键词
双向变换/LLC 谐振变换器/软开关/基波分析法/直流变压器Key words
bidirectional converter/LLC resonant converter/soft switching/first harmonic approximation method/DC-DC transformer分类
信息技术与安全科学引用本文复制引用
陈启超,纪延超,王建赜..双向CLLLC谐振型直流变压器的分析与设计[J].中国电机工程学报,2014,(18):2898-2905,8.基金项目
国家国际科技合作项目(2010DFR70600)Project Supported by International S&T Cooperation Program of China (2010DFR70600) （2010DFR70600）
