A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches

Abstract A soft switching non‐isolated bidirectional DC–DC converter with an improved voltage conversion ratio without any additional auxiliary switch is presented in this paper. In the proposed converter, improved step‐up/step‐down gain conversion is achieved by employing the coupled inductors meth...

Full description

Saved in:
Bibliographic Details
Main Authors: Nasrin Asadi Madiseh, Ehsan Adib
Format: Article
Language:English
Published: Wiley 2024-10-01
Series:IET Renewable Power Generation
Subjects:
Online Access:https://doi.org/10.1049/rpg2.13114
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1841546508714901504
author Nasrin Asadi Madiseh
Ehsan Adib
author_facet Nasrin Asadi Madiseh
Ehsan Adib
author_sort Nasrin Asadi Madiseh
collection DOAJ
description Abstract A soft switching non‐isolated bidirectional DC–DC converter with an improved voltage conversion ratio without any additional auxiliary switch is presented in this paper. In the proposed converter, improved step‐up/step‐down gain conversion is achieved by employing the coupled inductors method. Also, the auxiliary circuit provides soft switching conditions for all the semiconductor elements, regardless of the power flow direction and without any extra voltage stress. The other switch helps provide soft switching conditions for the main switch. Moreover, the switch used for providing soft switching conditions operates as a synchronous rectifier as well. The additional circuit added to attain soft switching is composed of an inductor, coupled with the converter's main inductor, and two auxiliary diodes. The auxiliary diodes benefit from zero‐current‐switching conditions. Fully soft switching conditions for all semiconductor devices, removing the reverse recovery problem, and a low number of components have led to mitigating switching losses and improving efficiency. Detailed operating principles and a theoretical analysis of the proposed converter are presented. Also, the experimental results of a 220 W prototype circuit are provided to confirm the validity of the proposed topology.
format Article
id doaj-art-612c04922d744ddfb8e9f487765d4176
institution Kabale University
issn 1752-1416
1752-1424
language English
publishDate 2024-10-01
publisher Wiley
record_format Article
series IET Renewable Power Generation
spelling doaj-art-612c04922d744ddfb8e9f487765d41762025-01-10T17:41:03ZengWileyIET Renewable Power Generation1752-14161752-14242024-10-0118142694270510.1049/rpg2.13114A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switchesNasrin Asadi Madiseh0Ehsan Adib1Department of Electrical and Computer EngineeringIsfahan University of TechnologyIsfahanIranDepartment of Electrical and Computer EngineeringIsfahan University of TechnologyIsfahanIranAbstract A soft switching non‐isolated bidirectional DC–DC converter with an improved voltage conversion ratio without any additional auxiliary switch is presented in this paper. In the proposed converter, improved step‐up/step‐down gain conversion is achieved by employing the coupled inductors method. Also, the auxiliary circuit provides soft switching conditions for all the semiconductor elements, regardless of the power flow direction and without any extra voltage stress. The other switch helps provide soft switching conditions for the main switch. Moreover, the switch used for providing soft switching conditions operates as a synchronous rectifier as well. The additional circuit added to attain soft switching is composed of an inductor, coupled with the converter's main inductor, and two auxiliary diodes. The auxiliary diodes benefit from zero‐current‐switching conditions. Fully soft switching conditions for all semiconductor devices, removing the reverse recovery problem, and a low number of components have led to mitigating switching losses and improving efficiency. Detailed operating principles and a theoretical analysis of the proposed converter are presented. Also, the experimental results of a 220 W prototype circuit are provided to confirm the validity of the proposed topology.https://doi.org/10.1049/rpg2.13114DC–DC power convertorsPWM power convertorszero current switchingzero voltage switching
spellingShingle Nasrin Asadi Madiseh
Ehsan Adib
A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches
IET Renewable Power Generation
DC–DC power convertors
PWM power convertors
zero current switching
zero voltage switching
title A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches
title_full A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches
title_fullStr A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches
title_full_unstemmed A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches
title_short A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches
title_sort soft switching non isolated bidirectional dc dc converter with improved voltage conversion ratio and minimum number of switches
topic DC–DC power convertors
PWM power convertors
zero current switching
zero voltage switching
url https://doi.org/10.1049/rpg2.13114
work_keys_str_mv AT nasrinasadimadiseh asoftswitchingnonisolatedbidirectionaldcdcconverterwithimprovedvoltageconversionratioandminimumnumberofswitches
AT ehsanadib asoftswitchingnonisolatedbidirectionaldcdcconverterwithimprovedvoltageconversionratioandminimumnumberofswitches
AT nasrinasadimadiseh softswitchingnonisolatedbidirectionaldcdcconverterwithimprovedvoltageconversionratioandminimumnumberofswitches
AT ehsanadib softswitchingnonisolatedbidirectionaldcdcconverterwithimprovedvoltageconversionratioandminimumnumberofswitches