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...
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| Format: | Article |
| Language: | English |
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Wiley
2024-10-01
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| Series: | IET Renewable Power Generation |
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| Online Access: | https://doi.org/10.1049/rpg2.13114 |
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| 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 |