电力系统保护与控制2024，Vol.52Issue(1)：133-144,12.DOI:10.19783/j.cnki.pspc.230666
宽增益高效谐振型直流变换器技术
Wide gain and high efficiency resonant DC-DC converter technology
摘要
Abstract
The DC-DC converter is widely used in electric vehicle charging and the photovoltaic power generation system.How to adapt to input/output voltage changes over a wide range,and realize the wide gain and maximum transmission efficiency have attracted attention from academia and industry.Especially,since the LLC and LLC_LC as well as the LLCLC resonant converter have characteristics such as high-power density and low electromagnetic interference,there are shortcomings including difficulty in designing magnetic components and resonant network parameters.These cause instability for the converter output,and it is difficult to meet the requirements for practical application.Thus a wide gain and high efficiency resonant DC-DC converter technology is proposed.The fundamental principle of the resonant DC-DC converter is summarized.Then research progress,both domestic and abroad,for topology and modulation strategy,is examined.The paper elaborates the application requirement for a wide gain and high efficiency resonant DC-DC converter.Then the topology and modulation strategy for both LLC_LC and LLCLC with multi-mode PWM voltage-multiplying rectifying converter are analyzed.Through simulation and experimental verification,the effectiveness of the topology and modulation strategy for two wide gain and high efficiency resonant DC-DC converters is verified,to show a maximum output voltage range of 1～6.2,and a conversion efficiency of 96.1%.This shows good prospects for application.关键词
谐振变换器/宽增益/高效率/拓扑结构/调制策略Key words
resonant converter/wide gain/high efficiency/topology structure/modulation strategy引用本文复制引用
龚春阳,夏潇,包俊,郑建,陈辉,陈晓琳,王志新,黄冬梅..宽增益高效谐振型直流变换器技术[J].电力系统保护与控制,2024,52(1):133-144,12.基金项目
国家重点研发计划项目资助(2016YFC1401902) （2016YFC1401902）
上海市经信委工业强基专项资助(GYQJ-2022-1-14) （GYQJ-2022-1-14）
上海市科技计划项目资助(21DZ1207300) This work is supported by the National Key Research and Development Program of China(No.2016YFC1401902). （21DZ1207300）
