Coupled-inductor-based high step-up DC–DC converter

A novel high step-up DC–DC converter with coupled inductors has been proposed. The proposed topology includes two coupled inductors, four capacitors, four diodes, and two metal–oxide–semiconductor field-effect transistors. Two coupled inductors charge in parallel when the switches are on and dischar...

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Bibliographic Details
Published in:IET power electronics 2019-10, Vol.12 (12), p.3093-3104
Main Authors: Ebrahimi, Reza, Madadi Kojabadi, Hossein, Chang, Liuchen, Blaabjerg, Frede
Format: Article
Language:English
Subjects:
capacitors
coupled‐inductor‐based high step‐up DC–DC converter
DC‐DC power convertors
diodes
inductors
metal–oxide–semiconductor field‐effect transistors
power switches
regenerative snubber
Research Article
snubbers
stray inductance
switches
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Summary:A novel high step-up DC–DC converter with coupled inductors has been proposed. The proposed topology includes two coupled inductors, four capacitors, four diodes, and two metal–oxide–semiconductor field-effect transistors. Two coupled inductors charge in parallel when the switches are on and discharge in series when switches are off. Additionally, for absorbing the energy of stray inductance, a regenerative snubber is used. In this way, the duty cycle of the power switches can vary in a wider range and the voltage gain is higher in comparison to most of the other coupled-inductor-based converters. The effectiveness of the proposed converter has been verified by various simulation and experimental results.
ISSN:1755-4535
1755-4543
1755-4543
DOI:10.1049/iet-pel.2018.6151