A new high step-up DC-DC converter for renewable energy applications is proposed in this paper. Employing an interleaved quadratic structure, two two-winding coupled inductors (CIs), and voltage multiplier cells (VMCs), the proposed converter can provide high-voltage gains, continuous input current with low ripple, reduced voltage stresses on semiconductors, common ground between input and output sides, and low numbers of components. In addition, diode-capacitor lossless clamp circuits are utilized to limit the voltage stresses of the power switches and further extend the voltage gain. The operating and steady-state analyses, design considerations, and a comparison with other previously published high step-up converters are presented. Lastly, experimental results of a 400 W prototype with 400 V output voltage are illustrated to verify the theoretical analysis and the functionality of the proposed converter.

中文翻译：

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具有耦合电感器的交错式二次高升压 DC-DC 转换器

本文提出了一种用于可再生能源应用的新型高升压 DC-DC 转换器。采用交错二次结构、两个双绕组耦合电感器 (CI) 和电压倍增器单元 (VMC)，所提出的转换器可以提供高电压增益、具有低纹波的连续输入电流、降低半导体上的电压应力、之间的公共接地输入端和输出端，组件数量少。此外，二极管-电容无损钳位电路用于限制电源开关的电压应力并进一步扩展电压增益。介绍了运行和稳态分析、设计注意事项以及与其他先前发布的高升压转换器的比较。最后，