A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications

被引：3
作者：
Huo, Xianxu [1 ]
Xu, Ke [2 ]
Liu, Ruixin [3 ]
Chen, Xi [3 ]
Li, Zhanchun [4 ]
Yan, Haiyun [5 ]
机构：
[1] Elect Power Res Inst State Grid Tianjin Elect Pow, Tianjin 300384, Peoples R China
[2] State Grid Tianjin Elect Power Corp, Tianjin 300310, Peoples R China
[3] Tianjin Univ, Sch Elect & Informat Engn, Tianjin 300072, Peoples R China
[4] State Grid Tianjin Elect Power Corp Chengxi Dist, Tianjin 300113, Peoples R China
[5] State Grid Tianjin Maintenance Co, Tianjin 300250, Peoples R China
来源：
ENERGIES | 2019年 / 12卷 / 15期
基金：
国家重点研发计划;
关键词：
structure-reconfigurable; soft-switching; resonant DC-DC converter; loss analysis; over-current protection;
D O I：
10.3390/en12152905
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a structure-reconfigurable resonant DC-DC (direct current - direct current) converter is presented. By controlling the state of the auxiliary switch, the converter could change the resonant structure to acquire a high efficiency and wide voltage gain range simultaneously. The characteristics of the LLC (inductor-inductor-capacitor) resonant converter are firstly analyzed. Based on this, through introducing additional resonant elements and adopting the topology morphing method, the proposed converter can be formed. Moreover, a novel parameter selection method is discussed to satisfy both working states. Then, a detailed loss analysis calculation is conducted to determine the optimal switching point. In addition, an extra resonant zero point is generated by the topology itself, and the inherent over-current protection is guaranteed. Finally, a 500 W prototype is built to demonstrate the theoretical rationality. The output voltage is constant at 400 V even if the input voltage varies from 160 to 400 V. A peak efficiency of 97.2% is achieved.
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页数：25
相关论文
共 28 条
  • [1] [Anonymous], 2019, FERROXCUBE APPL NOTE
  • [2] Bo Y, 2003, APPL POWER ELECT CO, P605
  • [3] Comparative Analysis and Optimization of Power Loss Based on the Isolated Series/Multi Resonant Three-Port Bidirectional DC-DC Converter
    Chen, Bo
    Wang, Ping
    Wang, Yifeng
    Li, Wei
    Han, Fuqiang
    Zhang, Shuhuai
    [J]. ENERGIES, 2017, 10 (10):
  • [4] 3 A Variable-Structure Multi-Resonant DC-DC Converter with Smooth Switching
    Chen, Mengying
    Wang, Yifeng
    Yang, Liang
    Han, Fuqiang
    Hou, Yuqi
    Yan, Haiyun
    [J]. ENERGIES, 2018, 11 (09)
  • [5] De Simone S, 2006, INT POWER ELECT ELEC, P200
  • [6] Operation Mode Analysis and Peak Gain Approximation of the LLC Resonant Converter
    Fang, Xiang
    Hu, Haibing
    Shen, Z. John
    Batarseh, Issa
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2012, 27 (04) : 1985 - 1995
  • [7] Optimal Design Methodology for LLC Resonant Converter in Battery Charging Applications Based on Time-Weighted Average Efficiency
    Fang, Zhijian
    Cai, Tao
    Duan, Shanxu
    Chen, Changsong
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2015, 30 (10) : 5469 - 5483
  • [8] IMPROVED ANALYTICAL MODELING OF CONDUCTIVE LOSSES IN MAGNETIC COMPONENTS
    FERREIRA, JA
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 1994, 9 (01) : 127 - 131
  • [9] Novel Multi-Element Resonant Converters for Front-end DC/DC Converters
    Fu, Dianbo
    Lee, Fred C.
    Liu, Ya
    Xu, Ming
    [J]. 2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10, 2008, : 250 - 256
  • [10] Analysis of Frequency Characteristics of the Half-Bridge CLCL Converter and Derivative Topologies
    Guan, Yueshi
    Wang, Yijie
    Cecati, Carlo
    Wang, Wei
    Xu, Dianguo
    [J]. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2018, 65 (10) : 7741 - 7752
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