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

doi:10.16628/j.cnki.2095-8188.2021.02.016

Abstract

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

CLC Number:

TM46

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

Figures/Tables 9

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

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