A novel interleaved boost-flyback DC-DC step-up converter

被引：0
|
作者：
Zhao, Guoyan [1 ]
Huang, Qin [1 ]
Ling, Rui [1 ]
Liu, Wei [1 ]
机构：
[1] College of Automation, Chongqing University, Shapingba District, Chongqing
来源：
Dianwang Jishu/Power System Technology | 2014年 / 38卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Boost; Converter; Flyback; Interleaved; Voltage gain;
D O I：
10.13335/j.1000-3673.pst.2014.10.025
中图分类号：
学科分类号：
摘要：
Due to the low forestage output voltage of photovoltaic/fuel cell generation system, the DC-DC converter with high step-up ratio is commonly needed to raise the output voltage. For this purpose, a novel interleaved boost-flyback converter (IFBC), in which the Boost converter and the flyback converter are interleaved to decrease the input and output ripples and the transformer turn ratio of flyback converter is used to attain a higher voltage gain, is proposed. The primary winding of the Flyback converter is connected to the output terminal via the capacitor, thus the energy of leakage inductance in the input side can be transferred to the output side, and the leakage inductance loss is reduced. The energy storage capacitor located at the middle of the converter can reduce the voltage stress extremely, so the transform efficiency is further improved. Various working conditions of IBFC are analyzed and voltage stresses of all elements are derived. Experimental results show that the proposed DC-DC converter is feasible and available.
引用
收藏
页码：2779 / 2783
页数：4
相关论文
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