一种耦合电感零纹波高增益DC/DC变换器

doi:10.16628/j.cnki.2095-8188.2021.02.016

电器与能效管理技术 ›› 2021, Vol. 0 ›› Issue (2): 88-93.doi: 10.16628/j.cnki.2095-8188.2021.02.016

• 分布式电源及并网技术 • 上一篇下一篇

一种耦合电感零纹波高增益DC/DC变换器

洪建超, 林国庆

福州大学电气工程与自动化学院, 福建福州 350108

收稿日期:2020-12-28 出版日期:2021-02-28 发布日期:2021-03-25
作者简介:洪建超(1995—),男,硕士研究生,研究方向为新能源电力变换技术、高增益DC/DC变换器拓扑及控制。|林国庆(1966—),男,教授,博士生导师,研究方向为电力电子变流技术。

Zero Ripple High-Gain DC/DC Converter with Coupled Inductor

HONG Jianchao, LIN Guoqing

College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China

Received:2020-12-28 Online:2021-02-28 Published:2021-03-25

摘要/Abstract

摘要：

针对新能源发电系统中直流升压变换器输入电流纹波大的问题,提出了一种耦合电感零纹波高增益直流变换器。变换器在Boost变换器基础上,引入耦合电感和二极管电容升压单元提高电压增益;同时在理论上实现输入电流零纹波,有助于提高发电效率。详细分析了变换器的工作原理和稳态特性,最后搭建了1台100 W的实验样机,验证了变换器的零输入电流特性和高增益特性。

关键词: 新能源发电, 零纹波, 高增益, 耦合电感

Abstract:

For the problem of large input current ripple of boost DC/DC converter in new energy power generation system,a zero ripple high gain DC/DC converter with coupled inductor was proposed.The converter,based on the boost converter,introduces coupled inductor and diode capacitor boost unit to improve the voltage gain.At the same time,the input current ripple achieves zero in theory,which is beneficial to improve the efficiency of power generation.The operational principle of the converter and its steady-state characteristics were analyzed in detail.Finally,a 100W prototype was built to verify the zero input current ripple of the converter and high-gain characteristics.

Key words: new energy power generation, zero ripple, high-gain, coupled inductor

中图分类号:

TM46

洪建超, 林国庆. 一种耦合电感零纹波高增益DC/DC变换器[J]. 电器与能效管理技术, 2021, 0(2): 88-93.

HONG Jianchao, LIN Guoqing. Zero Ripple High-Gain DC/DC Converter with Coupled Inductor[J]. LOW VOLTAGE APPARATUS, 2021, 0(2): 88-93.

图/表 9

图1

图2

图3

表1

变换器性能对比

变换器性能	文献 [8]	文献 [9]	文献 [15]	文献 [16]	本文变换器
电压增益	$n + 2 - D 1 - D$	$1 + nD 1 - D$	$n + 1 1 - D$	$n + 1 1 - D$	$n + 2 1 - D$
开关管应力	$U o n + 2 - D$	$U o 1 + nD$	$U o n + 1$	$U o n + 1$	$U o n + 2$
开关管数量	2	1	1	1	1
二极管数量	3	4	3	3	3
电容数量	4	4	4	5	4
电感数量	1	1	2	3	2
是否零纹波	否	否	是	是	是

表1

图4

图5

图6

图7

图8

参考文献 18

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一种耦合电感零纹波高增益DC/DC变换器

Zero Ripple High-Gain DC/DC Converter with Coupled Inductor

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