A Nonisolated Common-Ground High Step-Up Soft-Switching DC–DC Converter With Single Active Switch
A Nonisolated Common-Ground High Step-Up Soft-Switching DC–DC Converter With Single Active Switch
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DOI：
10.1109/tie.2022.3198262
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发表时间：
2023
影响因子：
7.7
通讯作者：
Sohrab Abbasian;Mohammad Farsijani;M. Tavakoli Bina;A. Shahirinia
中科院分区：
文献类型：
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作者：
Sohrab Abbasian;Mohammad Farsijani;M. Tavakoli Bina;A. Shahirinia
在这篇文章中，我们提出了一种新的非隔离高增益（HG）DC-DC拓扑。通过使用磁耦合电感，该拓扑可以达到比其他拓扑更高的电压增益，具有适中的占空比。通过提高有源开关的占空比或匝数比（N），可以进一步扩大电压增益。提出了谐振无源箝位电路，有效地回收了漏感能量，抑制了主电源电压尖峰。然后，输出二极管的反向恢复问题是由泄漏电感和谐振电容之间的谐振减轻。因此，可以提高所提出的HG转换器的效率。有源功率开关分别在零电流开关和零电压开关模式下导通和关断。详细描述了数值研究和MATLAB/Simulink仿真。同样，实验装置开发使用100 W的太阳能电池板，提供建议的DC-DC转换器，验证所介绍的分析和模拟。
In this article, we present a new nonisolated high-gain (HG) dc–dc topology. Using a magnetically coupled inductor, the proposed topology can reach a higher voltage gain than those of the other topologies with a moderate duty cycle. The voltage gain will be expanded further by enhancing duty cycle of the active power switch or the turn ratio (N). The resonance passive clamping circuits are presented to recycle the energy of leakage inductance and mitigating voltage spikes on the primary power mosfet efficaciously. Then, the output diode's reverse-recovery problem is lightened by the resonance between the leakage inductance and resonance capacitor. Accordingly, the efficiency of the presented HG converter can be improved. The active power switch turns on and off in the zero-current switching and zero-voltage switching modes, respectively. The numerical investigation and MATLAB/Simulink simulations are depicted in detail. Likewise, an experimental setup is developed using a 100 W solar panel that supplies the suggested dc–dc converter, validating the introduced analysis and simulations.