A Single-Switch High Step-Up DC–DC Converter with Low Input Current Ripple for Renewable Energy Applications

2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC) Pub Date : 2022-02-01 DOI:10.1109/pedstc53976.2022.9767428

Mir Yahya Hassani, M. Maalandish, Seyed Amir Hossein Hosseini

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Abstract

In this paper, a high step-up DC-DC converter with a dual-output is studied. The presented converter is assembled from a modified SEPIC and a three-level boost converter. The most significant advantage of this structure is achieving different high voltage gains for two outputs, using only one power switch and one input voltage source. The modified SEPIC converter supplies one of these outputs and the other output is provided by the three-level boost converter. The three-level stage is constructed by diode-capacitor units. The generated voltage gain by this stage is independent of the SEPIC part, which causes the proposed converter becomes appropriate for two different consumers. Depending on duty cycle of the switch, the SEPIC converter can be step-up or step-down, which in this case, it works in step-up mode. In further, the proposed converter analysis is explained in detail. Finally, performance of the presented converter is evaluated by simulation results.

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用于可再生能源应用的低输入纹波单开关高升压DC-DC变换器

本文研究了一种具有双输出的高升压DC-DC变换器。该变换器由一个改进的SEPIC和一个三电平升压变换器组装而成。该结构最显著的优点是仅使用一个电源开关和一个输入电压源，就可以实现两个输出的不同高电压增益。改进的SEPIC转换器提供其中一个输出，另一个输出由三电平升压转换器提供。三级级是由二极管电容单元构成的。这一阶段产生的电压增益与SEPIC部分无关，这使得所提出的转换器适用于两个不同的消费者。根据开关的占空比，SEPIC转换器可以升压或降压，在这种情况下，它工作在升压模式。进一步，对所提出的转换器进行了详细的分析。最后，通过仿真结果对该变换器的性能进行了评价。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)

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