A Transformerless Quadratic Boost High Gain DC-DC Converter

2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2020-12-16 DOI:10.1109/PEDES49360.2020.9379778

Mohammad Zaid, Javed Ahmad, A. Sarwar, Zeeshan Sarwer, M. Tariq, A. Alam

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引用次数: 8

Abstract

In this paper, a new non-isolated de-de converter with high voltage gain and reduced stress across switch and diodes is proposed. A new voltage boost cell is proposed to boost the voltage at the output at lower duty ratios. Thus, switching devices of low power rating can be selected. Apart from high gain, the converter has a single switch and continuous source current. All these features make this converter suitable to be used in microgrid applications. Steady-state working of the converter is discussed in detail and performance comparison of the converter is done with other high gain topologies. Respective expressions for voltage gain and stress across switch and diodes are presented in the paper. The power loss and efficiency of the converter are also determined by incorporating the switching characteristics of switch and diodes from datasheet into PLECS software. The software is specially designed to determine the losses in switching devices. Finally, a hardware prototype is also developed in the laboratory. The hardware results verify the results obtained through simulation.

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无变压器二次升压高增益DC-DC变换器

本文提出了一种具有高电压增益和减小开关和二极管间应力的新型非隔离式去解码变换器。提出了一种新的电压升压电池，以提高输出电压在较低的占空比。因此，可以选择低额定功率的开关器件。除高增益外，变换器具有单开关和连续源电流。所有这些特点使该变换器适用于微电网应用。详细讨论了变换器的稳态工作，并与其他高增益拓扑进行了性能比较。本文给出了开关和二极管电压增益和应力的表达式。通过将数据表中的开关和二极管的开关特性整合到PLECS软件中，还可以确定转换器的功率损耗和效率。该软件是专门设计用于确定开关器件的损耗。最后，在实验室开发了硬件样机。硬件结果验证了仿真结果。

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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来源期刊

2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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