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High gain DC-DC converter with coupled inductor
Author(s): Chao Liu; Hongwei Sun; Song Xin; Zhang Zheng; Maochuan Wu; Peng Xu
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Paper Abstract

This paper analyzes the working principle, advantages and disadvantages of traditional Boost DC-DC converter firstly, and then proposes a new type of high set-up ratio DC-DC converter topology with the coupled-inductor and voltage-doubler structure. In the following parts, it introduces the composition and the equivalent circuit of this topology in detail, and deduces its set-up ratio expression and the voltage stress expression of the switching tubes and diodes. Finally, this paper designs the main parameters and the relevant models of the topology, and makes the experimental platform. The experiment results indicate that this topology could realize high set-up ratio even under usual duty-ratio conditions, and could effectively reduce the voltage stress and switching-off loss of switching tubes, providing favorable conditions for realizing multilevel conversion of the following inverter in the photovoltaic power generation system.

Paper Details

Date Published: 7 June 2019
PDF: 8 pages
Proc. SPIE 10971, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII, 109711Y (7 June 2019); doi: 10.1117/12.2513256
Show Author Affiliations
Chao Liu, Jiangsu Automation Research Institute (China)
Hongwei Sun, Jiangsu Automation Research Institute (China)
Song Xin, Jiangsu Automation Research Institute (China)
Zhang Zheng, Lianyungang Jari DeepSoft Technology, Ltd. (China)
Maochuan Wu, Lianyungang Jari DeepSoft Technology, Ltd. (China)
Peng Xu, Jiangsu Automation Research Institute (China)


Published in SPIE Proceedings Vol. 10971:
Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII
Andrew L. Gyekenyesi, Editor(s)

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