一种适用于可再生能源发电系统的新型双开关电容DC-DC变换器

贾海涛; 周晓燕; 王鹤霖; 卢庆轩; 胡昊泽; 田朔

doi:10.19912/j.0254-0096.tynxb.2024-0770

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (9) : 678-687. DOI: 10.19912/j.0254-0096.tynxb.2024-0770

一种适用于可再生能源发电系统的新型双开关电容DC-DC变换器

贾海涛, 周晓燕, 王鹤霖, 卢庆轩, 胡昊泽, 田朔

作者信息 +

A NOVEL DOUBLE-SWITCHED CAPACITOR DC-DC CONVERTER SUITABLE FOR RENEWABLE ENERGY POWER GENERATION SYSTEM

Jia Haitao, Zhou Xiaoyan, Wang Helin, Lu Qingxuan, Hu Haoze, Tian Shuo

Author information +

文章历史 +

摘要

为使并网发电系统对光伏、燃料电池、风力发电等清洁能源发电设备具有更高的兼容性,提出一种基于新型双开关电容的耦合电感DC-DC变换器。该变换器的高增益、低损耗和低开关电压应力是通过新型双开关电容结构和耦合电感升压单元实现的。重要的是,通过新型双开关电容结构中的无源箝位电路,可均匀分配两个功率开关的电压应力,从而降低其峰值电压。同时可回收漏感能量,提高变换器效率。介绍其工作模式和稳态分析,对元件的受力、理论效率进行分析,并与其他DC-DC变换器进行比较。最后,根据设计准则在实验室搭建一个200 W的样机,验证所提变换器的有效性。

Abstract

To make grid-connected power generation systems more compatible with photovoltaic, fuel cell, wind power and other clean energy power generation equipment, a coupled inductance DC-DC converter based on a new type of double-switched structure capacitor is proposed in this paper. The high gain, low loss and low switching voltage stress of the converter are realized by a novel double switched capacitor structure and a coupled inductance boost unit. Importantly, the voltage stress of the two power switches can be evenly distributed through the passive clamping circuit in the novel double-switched capacitor structure, thus reducing their peak voltages. At the same time, the leakage energy can be recovered and the efficiency of the converter can be improved. This paper introduces its operating mode and steady state analysis. The stresses and theoretical efficiency of the components are analyzed and compared with other DC-DC converters. Finally, according to the design criteria, a 200 W prototype was built in the laboratory to verify the effectiveness of the proposed converter.

导出引用

贾海涛, 周晓燕, 王鹤霖, 卢庆轩, 胡昊泽, 田朔. 一种适用于可再生能源发电系统的新型双开关电容DC-DC变换器[J]. 太阳能学报. 2025, 46(9): 678-687 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0770

Jia Haitao, Zhou Xiaoyan, Wang Helin, Lu Qingxuan, Hu Haoze, Tian Shuo. A NOVEL DOUBLE-SWITCHED CAPACITOR DC-DC CONVERTER SUITABLE FOR RENEWABLE ENERGY POWER GENERATION SYSTEM[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 678-687 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0770

中图分类号： TM46

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