An H5-Bridge-Based Asymmetric LLC Resonant Converter With an Ultrawide Output Voltage Range

doi:10.1109/TIE.2019.2952778

	An H5-Bridge-Based Asymmetric LLC Resonant Converter With an Ultrawide Output Voltage Range
	Cheng Li1,2 ; Mingde Zhou1 ; Haoyu Wang1
	2020-11-01
发表期刊	IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (IF:7.5[JCR-2023],8.0[5-Year])
ISSN	1557-9948
卷号	67 期号:11
发表状态	已发表
DOI	10.1109/TIE.2019.2952778
摘要	To extend the output voltage range of the conventional LLC topology, a small magnetizing inductance and a large frequency modulation window are required. Both would jeopardize the system performances. To resolve this issue, this article proposes a novel H5-bridge-based asymmetric LLC resonant converter. By configuring the switch pattern of the H5-bridge, two asymmetric LLC resonant tanks could operate in idle, half-bridge, hybrid-bridge, and full-bridge modes. Correspondingly, six operation modes with scaled voltage gains are obtained. Hence, an ultrawide output voltage range is achieved with moderate magnetizing inductance and simplified design of resonant parameters. The switching frequency range is squeezed close to the resonant frequency, which is beneficial for control implementation and circulating current suppression. Furthermore, two resonant tanks facilitate an easier zero-voltage switching (ZVS) of the primary-side MOSFETs and alleviate the current and voltage stresses. The conduction loss is further reduced due to the power-sharing effect between resonant tanks. To achieve a minimized frequency window, the optimized design of two resonant tanks is analyzed. To verify this concept, a 1-kW-rated prototype with 390 V input and 80-450 V output is designed and tested. Primary-side MOSFETs' ZVS are achieved over the entire load range. The designed prototype achieves 97.05% peak efficiency and good efficiency performance over the ultrawide output voltage range.
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收录类别	SCI ; SCIE ; EI
来源库	IEEE
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/123485
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.Power Electronics and Renewable Energies Laboratory, School of Information Science & Technology, ShanghaiTech University, Shanghai, China 2.Hesai Photonics Technology Company, Ltd, Shanghai, China
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	Cheng Li,Mingde Zhou,Haoyu Wang. An H5-Bridge-Based Asymmetric LLC Resonant Converter With an Ultrawide Output Voltage Range[J]. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,2020,67(11).
APA	Cheng Li,Mingde Zhou,&Haoyu Wang.(2020).An H5-Bridge-Based Asymmetric LLC Resonant Converter With an Ultrawide Output Voltage Range.IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,67(11).
MLA	Cheng Li,et al."An H5-Bridge-Based Asymmetric LLC Resonant Converter With an Ultrawide Output Voltage Range".IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 67.11(2020).