A Soft-Switched Step-Up Non-isolated Zeta-Flyback Converter for Solar PV Applications

被引：0
|
作者：
Asadi, Alireza [1 ]
Mohammadpour, Omid [1 ]
Liang, Xiaodong [1 ]
机构：
[1] Univ Saskatchewan, Dept Elect & Comp Engn, Saskatoon, SK, Canada
来源：
2023 IEEE CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, CCECE | 2023年
关键词：
Zeta-flyback converter; non-isolated; step-up DC-DC converter; soft-switching; ZVT-PWM CONVERTERS; FAMILY;
D O I：
10.1109/CCECE58730.2023.10288703
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In this paper, a new configuration of a non-isolated zeta-flyback converter is proposed. A zeta converter can reduce output current and voltage ripples, and by interleaving a flyback converter with it, the proposed converter is an excellent choice for interfacing solar photovoltaics (PV) panels, fuel cells and ultra-capacitors due to its high gain, high efficiency and low costs. The flyback section of the converter, including a transformer, increases the output voltage gain and forms a step-up converter. However, the switch used in this converter experiences high voltage and high current stress during switching operations, resulting in a lower system efficiency. To increase the converter's efficiency and achieve zero switching losses, a soft switching method is utilized for the zeta-flyback converter based on a resonance structure with an auxiliary switch and a diode. The performance of the designed converter is validated by simulation using the software, Power Sim.
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页数：6
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