| 直流微网中高降压比软开关DC-DC变换器 |
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| 引用本文： | 赵晋斌,火彩玲,屈克庆,李芬.直流微网中高降压比软开关DC-DC变换器[J].上海电力学院学报,2015,31(1):29-34. |
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| 作者姓名： | 赵晋斌 火彩玲 屈克庆 李芬 |
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| 作者单位： | 上海电力学院电气工程学院,上海电力学院电气工程学院,上海电力学院电气工程学院,上海电力学院电气工程学院 |
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| 基金项目： | 上海市科学技术委员会浦江计划(12PJ1403900);上海市教育委员会科创重点项目(13ZZ132) |
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| 摘 要： | 针对传统单级DC-DC变换器在分布式电源构成的DC 380 V直流微电网中变换困难的问题,提出了一种具有高降压比特性的新型拓扑结构.该拓扑结构利用中间电感和输出侧电感的分压特性,较好地实现了高降压比转换,并利用钳位电容的作用实现了电路的软开关动作.在分析其基本原理的基础上,给出了一定死区时间内软开关的实现条件,并通过对比介绍了该变换器的优势.最后通过仿真验证了上述理论分析的正确性.
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| 关 键 词： | 直流微网 DC-DC变换器 非隔离 高压降 软开关 |
| 收稿时间： | 6/6/2014 12:00:00 AM |
Soft-switching DC-DC Converter with High-step-down Ratio in DC Micro-grid |
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| ZHAO Jinbin,HUO Cailing,QU Keqing and LI Fen.Soft-switching DC-DC Converter with High-step-down Ratio in DC Micro-grid[J].Journal of Shanghai University of Electric Power,2015,31(1):29-34. |
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| Authors: | ZHAO Jinbin HUO Cailing QU Keqing and LI Fen |
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| Affiliation: | School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China,School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China,School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China and School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China |
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| Abstract: | In view of the problem of traditional single-stage DC-DC converter transform difficulties in the 380 V DC micro-grid composed of distributed power, a novel topology with the partial pressure characteristics of the middle inductor and output inductor, achieving high-step-down ratio, and using the function of clamping capacitance is proposed, achieving soft-switching. Based on the analysis of its basic principle, the soft-switching conditions in the dead time are given, and at the same time, the advantages of the converter are introduced in comparison. Finally, the simulation proves the correctness of theoretical analysis. |
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| Keywords: | DC micro-grid DC/DC converter Non-isolated high step-down ratio soft-switch |
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