A Novel Type of High Gain DC-DC Converter

doi:10.11930/j.issn.1004-9649.2014.4.97.4

Abstract

Abstract: With the wide application of new energy of solar and fuel cells whose output voltage is low, researches on high power and high gain converter become one of the focuses of power electronics. To obtained the high gain and high reliability of the DC-DC converter, a novel type of no-isolated passive-clamped interleaving converter based on precharged capacitance unit is proposed, in which the inputs are in series and the outputs in parallel. To test the theory analysis, a 200 W experimental equipment is built. The experimental results indicate that this passive-clamped circuit can receive leakage inductance energy effectively, zero-voltage-switched and zero-current-switched are achieved, which has the similar effectiveness of active-clamped circuit, and the reliability of this device is improved. By using of this new converter, high gain is obtained in the context of suitable duty ratio, transformer turns-ratio is reduced and reverse recovery is restrained, the efficiency is improved, the power density is also improved, and the size of magnetic cores is reduced effectively. So, it is proved that this new converter is novel and practical.

Key words: interleaving parallel, zero-current-switching-on, zero-voltage-switching-off, passive-clamped, high gain

CLC Number:

TM46

GUI Cun-bing. A Novel Type of High Gain DC-DC Converter[J]. Electric Power, 2014, 47(4): 97-101.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.4.97.4

https://www.electricpower.com.cn/EN/Y2014/V47/I4/97

References

[1] 戴慧珠,陈默子,王伟胜,等. 中国风电发展现状及有关技术服务[J]. 中国电力,2005,38（1）：80-84.
DAI Hui-zhu, CHEN Mo-zi, WANG Wei-sheng, et al . The status of wind power development and technical supports in China [J]. Electric Power, 2005, 38(1): 80-84.
[2] 金一丁,宋强,陈晋辉,等. 大容量电池储能电网接入系统[J]. 中国电力,2010,43（2）：16-20.
JIN Yi-ding, SONG Qiang, CHEN Jin-hui, et al . Power conversion system of large scaled battery energy storage[J]. Electric Power, 2010, 43(2): 16-20.
[3] 张伯泉,杨宜民. 风力和太阳能光伏发电现状及发展趋势[J]. 中国电力,2006,39（6）：65-69.
ZHANG Bo-quan, YANG Yi-min. Status and trend of wind/photovoltaic power development[J]. Electric Power, 2006, 39(6):65-69.
[4] 罗全明,闫欢,孙明坤,等. 基于拓扑组合的高增益Boost变换器[J]. 电工技术学报,2012,27（7）：96 -102.
LUO Quan-ming, YAN Huan, SUN Ming-kun, et al . A high gain boost DC-DC converter based on combined Topology[J]. Transaction of China Electrotechnical Society, 2012, 27(7): 96 -102.
[5] ZHAO Q, TAO F, LEE F C. A front-end DC-DC converter for network server applications[C]// Proceedings of the IEEE Power Electronics Specialists Conference. Vancouver, Canada, 2001: 1535-1539.
[6] WATSON R, LEE F C, HUA G C. Utilization of an active-clamp circuit to achieve soft switching in flyback converters[C]//Proceedings of the IEEE Power Electronics Specialists Conference. Bologna, Italy, 1994: 909-916.
[7] CHOI C T, LI C K, KOK S K. Modeling of an active clamp discontinuous conduction mode flyback converter under variation of operating condition[C]// Proceedings of the IEEE International Conference on Power Electronics and Drive Systems. Hong Kong, China, 1999: 730-733.
[8] ZHAO Q, LEE F C. High-efficiency, high step-up DC-DC converters[J]. IEEE Transactions on Power Electronics, 2003, 18(1): 65-73.
[9] YAO G, CH EN A, HE X. Soft switching circuit for inter leaved boost converters[J]. IEEE Transact ions on Power Electronics, 2007, 22(1): 80-86.
[10] 石健将,洪峰,严仰光. 双管正-反激组合变换器研究[J]. 电工技术学报,2003,18（5）：87-90.
SHI Jian-jiang, HONG Feng, YAN Yang-guang. Study of two- transistor forward-flyback combined converter[J]. Transaction of China Electrotechnical Society, 2003, 18(5): 87-90.
[11] 张方华, 严仰光. 带隔离变压器DC/DC变换器零电流转换方案[J]. 中国电机工程学报,2003,23（9）：63-66.
ZHANG Fang-hua, YAN Yang-guang. ZCT scheme of isolated DC/DC converter[J]. Proceedings of the CSEE, 2003, 23(9): 63-66.
[12] 陈阿莲,邓焰,何湘宁. 一种具有冗余功能的多电平变换器拓扑[J]. 中国电机工程学报,2003,23（9）：34-38.
CHEN A-lian, DENG Yan, HE Xiang-ning. A multilevel converter Topology with redundancy ability[J]. Proceedings of the CSEE,2003, 23(9): 34-38.
[13] 石健将,严仰光,何湘宁. 一种具有输入端电容均压的串-并型双管正激组合变换器研究[J].中国电机工程学报,2004,24（12）：92-97.
SHI Jian-jiang, YAN Yang-guang, HE Xiang-ning. A study on seriesparallel connection of dual two-transistor forward converter modules with voltage sharing between input-capacitor[J].Proceedings of the CSEE, 2004, 24(12): 92-97.
[14] 穆新华. 交错并联式双管正激变换器工作模式分析及系统设计[J]. 中国电机工程学报,2004,24（12）：38-42.
MU Xin-hua. Model analysis and system design of interleaving double-transistor-forward converter[J]. Proceedings of the CSEE,2004, 24(12): 38-42.
[15] ZHAO Q, LEE F C. High-efficiency, high step-up DC-DC converters[J]. IEEE Transactions on Power Electronics, 2003, 18(1): 65-73.
[16] 李武华,何湘宁,吴剑勇. 隔离型三绕组耦合电感交错式DC/DC 变换器[J]. 电工技术学报,2009,24（9）：99-106.
LI Wu-hua, HE Xiang-ning, WU Jian-yong. Isolated interleaved DC/DC converts with winding-cross-coupled inductors[J]. Transaction of China Electrotechnical Society, 2009, 24(9): 99-106.
[17] LI W, LIU J, HE X. Design and analysis of isolated ZVT boost converters for high-efficiency and high-step-up applications [J].IEEE Transactions on Power Electronics, 2007, 22(16): 2363-2374.
[18] CHIN C, KNIGHTS M A. Interleaving technique in distributed power conversions [J]. IEEE Transactions on Circuits Systems I, Fundamental Theory Application, 2005, 42(5): 245-251.
[19] SHIN H B, PARK J G, CHUNG S K, et al . Generalised steady- state analysis of multiphase interleaved boost converter with coupled inductors [J]. Proc Inst Electr Eng-Elect Power Applicat, 2005, 152(3): 584-594.
[20] LI W, HE X. High step-up soft switching interleaved boost converters with cross-winding-coupled inductors and reduced auxiliary switch number [J]. IET Power Electronics, 2009, 2(2): 125-133.