Reconfigurable H5-bridge Based LLC-DAB Sigma Converter for EV Fast Charging Stations
2025-03-20
会议录名称2025 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC)
ISSN1048-2334
页码2207-2212
发表状态已发表
DOI10.1109/APEC48143.2025.10977378
摘要

In fast charging stations, the electric vehicle (EV) charger needs to adapt to the traction batteries of different models. The ultra-wide voltage range brings significant challenges to the optimal design of the dc/dc converter in the EV charger. To cope with this issue, we propose a Sigma converter based on a reconfigurable H5 bridge. The converter consists of two submodules, the LLC submodule and the DAB submodule, with a shared H5 bridge. By reconfiguring the H5 bridge, the LLC submodule exhibits a trapezoidal gain characteristic. On this basis, the DAB submodule realizes the residual gain through a hybrid modulation. The LLC submodule delivers the majority of power and always operates at the optimal operating point, while the voltage regulation is majorly realized by the DAB submodule. The circulating current of the LLC submodule contributes to the zero-voltage switching (ZVS) of the DAB, and the partial power processing structure makes the power path simpler and more efficient. In addition, the modulation method is capable of battery current control, making it suitable for EV charging applications. A 3.3kW prototype that converts 800V input to a 150-900V ultra-wide output is designed, simulated, and experimentally tested to validate the concept.

会议录编者/会议主办者IEEE Industry Applications Society (IAS) ; IEEE Power Electronics Society (PELS) ; Power Sources Manufacturers Association (PSMA)
关键词Hybrid vehicles State of charge Wireless charging Zero current switching Zero voltage switching DAB Dc transformer (DCX) Electric vehicles chargers Fast charging stations H5-bridge LLC Reconfigurable Submodules Voltage ranges Wide voltage range
会议名称14th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2025
会议地点Atlanta, GA, USA
会议日期16-20 March 2025
URL查看原文
收录类别EI
语种英语
出版者Institute of Electrical and Electronics Engineers Inc.
EI入藏号20252018417744
EI主题词Fast charging (Batteries)
EISSN2470-6647
EI分类号662.1 Automobiles ; 702.1 Electric Batteries ; 702.1.2 Secondary Batteries ; 703 Electric Circuits ; 706.1.1 Electric Power Transmission ; 713 Electronic Circuits ; 1501.1.1 Sustainable Transport
原始文献类型Conference article (CA)
来源库IEEE
文献类型会议论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/523876
专题信息科学与技术学院
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
信息科学与技术学院_博士生
作者单位
1.School of Information Science and Technology, ShanghaiTech University, Shanghai, China
2.Shanghai Engineering Research Center of Energy Efficient and Custom AIIC
第一作者单位信息科学与技术学院
第一作者的第一单位信息科学与技术学院
推荐引用方式
GB/T 7714
Huangsheng Xu,Mingde Zhou,Qishan Pan,et al. Reconfigurable H5-bridge Based LLC-DAB Sigma Converter for EV Fast Charging Stations[C]//IEEE Industry Applications Society (IAS), IEEE Power Electronics Society (PELS), Power Sources Manufacturers Association (PSMA):Institute of Electrical and Electronics Engineers Inc.,2025:2207-2212.
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