A single-bridge interleaved three-level LLC resonant converter with current sharing capability for fuel cell system

被引：0
|
作者：
Zhao, Qianqi [1 ]
Cheng, Xu-Feng [1 ]
Li, Yazhuo [1 ]
Li, He [1 ]
Wang, Dianlong [2 ]
Liu, Chenyang [3 ]
Zhang, Yong [4 ]
机构：
[1] Hebei Univ Sci & Technol, Sch Mech Engn, Shijiazhuang 050018, Peoples R China
[2] Yanshan Univ, Sch Mech Engn, Qinhuangdao 066004, Peoples R China
[3] Dalian Maritime Univ, Coll Marine Elect Engn, Dalian 116026, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
来源：
SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期
关键词：
HIGH-EFFICIENCY;
D O I：
10.1038/s41598-024-67456-1
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This paper propose a wide gain single-bridge interleaved three-level LLC resonant converter with current sharing capability. This novel converter offers numerous advantages, including low cost, low current ripple, reduced voltage and current stress, widely gain range, high efficiency, good current sharing capability and versatile application scalability. Utilizing the three-level inverter + full-wave rectifier LLC converter as a representative case, the paper conducts an in-depth analysis and research on the proposed method. Finality, a 600 W experimental prototype was constructed and tested. Experimental results reveal that the proposed converter exhibits lower current ripple and a broader gain range. Moreover, the converter shows good current sharing capability (with a resonant element tolerance of 10%, the current error between the two phases does not exceed 12%) and high efficiency (peaking at 95.8%).
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页数：16
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