Fixed Frequency Phase Shift Modulated LLC Resonant Converter Adapted to Ultra Wide Output Voltage Range
Cao, Qi; Li, Zhiqing; Xue, Bo; Wang, Haoyu
2019
Source PublicationTHIRTY-FOURTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2019)
Volume2019-March
Pages817-822
Status已发表
DOI10.1109/APEC.2019.8722285
AbstractConventional frequency modulated LLC topology is unsuitable for ultra wide voltage range applications and suffers from poor voltage regulation performance at light load conditions. To cope with those issues, this paper proposes a novel two-phase dual LLC resonant converter. Both resonant tanks are driven by two fixed-frequency square waves, whose frequencies are always tuned at the optimal resonant frequency. A phase shift is introduced between those two square waves to regulate the output voltage. The proposed topology demonstrates good voltage regulation performance, which is weakly dependent on the load condition. Zero-voltage switching and zero-current switching are well realized on the power MOSFETs and diodes in a wide range. A 1 kW rated laboratory prototype is designed to convert 390 V input to 100-420 V output. The prototype demonstrates a 98.2% peak efficiency and good voltage regulation capability. The experimental results agree well with the theoretical analysis.
KeywordLLC phase shift modulation resonant converter wide output range
Conference PlaceAnaheim, CA, United states
Conference Date17-21 March 2019
URL查看原文
Indexed ByEI ; CPCI
Language英语
Funding ProjectShanghai Sailing Program[16YF1407600]
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Electrical & Electronic
WOS IDWOS:000475931100126
PublisherIEEE
EI Accession Number20192407050046
EI KeywordsNatural frequencies ; Power converters ; Power MOSFET ; Topology ; Voltage regulators ; Zero current switching ; Zero voltage switching
EI Classification NumberControl Equipment:732.1 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4
WOS KeywordBATTERY CHARGER ; HIGH-EFFICIENCY ; DENSITY
Original Document TypeProceedings Paper
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/49931
Collection信息科学与技术学院_本科生
信息科学与技术学院_PI研究组_王浩宇组
信息科学与技术学院_硕士生
Corresponding AuthorWang, Haoyu
AffiliationShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China
First Author AffilicationSchool of Information Science and Technology
Corresponding Author AffilicationSchool of Information Science and Technology
First Signature AffilicationSchool of Information Science and Technology
Recommended Citation
GB/T 7714
Cao, Qi,Li, Zhiqing,Xue, Bo,et al. Fixed Frequency Phase Shift Modulated LLC Resonant Converter Adapted to Ultra Wide Output Voltage Range[C]:IEEE,2019:817-822.
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