An Isolated DC/DC Converter Using High-Frequency Unregulated LLC Resonant Converter for Fuel Cell Applications

被引：203
作者：
Lee, Jun-Young [1 ]
Jeong, Yu-Seok [1 ]
Han, Byung-Moon [1 ]
机构：
[1] Myongji Univ, Dept Elect Engn, Yongin 449728, South Korea
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2011年 / 58卷 / 07期
关键词：
DC/DC converter; fuel cell; LLC converter; BOOST CONVERTER; VOLTAGE; DESIGN;
D O I：
10.1109/TIE.2010.2076311
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper suggests an isolated dc/dc converter using an unregulated LLC converter for fuel cell applications. The LLC converter operates as an isolated voltage amplifier with a constant voltage gain, and a nonisolated converter installed in the input stage regulates the output voltage under a wide variation of fuel cell stack voltage. By separating the functions, the unregulated LLC converter can be operated at an optimal switching condition, and the high-frequency operation of 300 kHz can be accomplished without introducing an excessive switching loss. The prototype converter with a 1-kW design (V-in = 24 similar to 48 V/V-o = 400 V) shows an efficiency of above 90.2% under a 24-V input and full load conditions.
引用
收藏
页码：2926 / 2934
页数：9
相关论文
共 24 条
[1]   Highly Efficient High Step-Up Converter for Fuel-Cell Power Processing Based on Three-State Commutation Cell [J].
Araujo, Samuel Vasconcelos ;
Torrico-Bascope, Rene P. ;
Torrico-Bascope, Grover V. .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2010, 57 (06) :1987-1997
[2]   Cuffent-fed Full Bridge Converter for Fuel Cell. Systems [J].
Averberg, A. ;
Meyer, K. R. ;
Mertens, A. .
2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10, 2008, :866-872
[3]   ANALYSIS AND DESIGN OF LCL-TYPE SERIES RESONANT CONVERTER [J].
BHAT, AKS .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 1994, 41 (01) :118-124
[4]   Novel High Step-Up DC-DC Converter for Fuel Cell Energy Conversion System [J].
Changchien, Shih-Kuen ;
Liang, Tsorng-Juu ;
Chen, Jiann-Fuh ;
Yang, Lung-Sheng .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2010, 57 (06) :2007-2017
[5]   Analysis and design of a current-fed zero-voltage-switching and zero-current-switching CL-resonant push-pull dc-dc converter [J].
Chu, C. -L. ;
Li, C. -H. .
IET POWER ELECTRONICS, 2009, 2 (04) :456-465
[6]  
Dong Wang, 2008, IECON 2008 - 34th Annual Conference of IEEE Industrial Electronics Society, P808, DOI 10.1109/IECON.2008.4758057
[7]   A new active clamping zero-voltage switching PWM current-fed half-bridge converter [J].
Han, SK ;
Yoon, HK ;
Moon, GW ;
Youn, MJ ;
Kim, YH ;
Lee, KH .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2005, 20 (06) :1271-1279
[8]  
Heldwein ML, 2000, IEEE POWER ELECTRON, P199, DOI 10.1109/PESC.2000.878838
[9]   Active Current Sharing and Source Management in Fuel Cell-Battery Hybrid Power System [J].
Jiang, Wei ;
Fahimi, Babak .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2010, 57 (02) :752-761
[10]   Hybrid full-bridge three-level LLC resonant converter - A novel DC-DC converter suitable for fuel-cell power system [J].
Jin, Ke ;
Ruan, Xinbo .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2006, 53 (05) :1492-1503
123