Soft Switched Non-Isolated High Step-up DC-DC Converter Based on Combination of Buck-Boost and Switched Resonator Converters

2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC) Pub Date : 2022-02-01 DOI:10.1109/PEDSTC53976.2022.9767210

M. Hajilou, H. Farzanehfard

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引用次数: 1

Abstract

In this paper, a soft switched non-isolated high step-up DC-DC converter based on combination of buck-boost and switched resonator converters is proposed which is the combination of a buck-boost and a switched resonator converter. To reduce the converter semiconductor elements, one switch of the switched resonator structure is shared with the buck-boost structure. Soft switching condition for both switches is established without using any axillary switch, also, all diodes except one are turned OFF under ZCS condition which has mitigated the reverse recovery problem. Semiconductor elements soft-switching operation has reduced the converter switching losses and contributed to increased efficiency. In the continuation of this article, the proposed converter operational principle and steady-state analysis are discussed. The proposed converter is simulated by PSpice software at 24V input, 350V output and 200W, and results are presented. The simulation results confirm the converter analysis and operation.

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基于Buck-Boost和开关谐振器组合的软开关非隔离高升压DC-DC变换器

本文提出了一种基于buck-boost和开关谐振器相结合的软开关非隔离高升压DC-DC变换器，即buck-boost和开关谐振器相结合的变换器。为了减少变换器的半导体元件，开关谐振器结构的一个开关与降压结构共用。在不使用任何腋窝开关的情况下，建立了两个开关的软开关条件，并且在ZCS条件下，除了一个二极管外，所有二极管都关闭，从而减轻了反向恢复问题。半导体元件的软开关操作降低了变换器的开关损耗，提高了效率。在本文的续文中，讨论了所提出的变换器的工作原理和稳态分析。利用PSpice软件对该变换器在输入24V、输出350V、功率200W下进行了仿真，并给出了仿真结果。仿真结果验证了变换器的分析和运行。

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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