Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain

Eskandary, Wahid; Monfared, Mohammad; Nikbahar, Ali; Mahdave, Ahmad

doi:10.1049/pel2.12730

Journal article 658 views 162 downloads

Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain

Wahid Eskandary, Mohammad Monfared

, Ali Nikbahar, Ahmad Mahdave

IET Power Electronics, Volume: 17, Issue: 14, Pages: 1749 - 1760

Swansea University Author: Mohammad Monfared

PDF | Version of Record

© 2024 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License.
Download (2.25MB)

Check full text

DOI (Published version): 10.1049/pel2.12730

Abstract

This paper proposes a novel non-isolated ultrahigh step-down interleaved DC-DC converter with an extremely extended duty cycle based on the series capacitor and coupled-inductor techniques. The proposed converter utilizes a three-winding coupled inductor (TWCI) to enhance the step-down conversion ra...

Full description

Published in:	IET Power Electronics
ISSN:	1755-4535 1755-4543
Published:	Institution of Engineering and Technology (IET) 2024
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa66751

first_indexed	2024-06-19T08:35:19Z
last_indexed	2025-02-20T10:49:53Z
id	cronfa66751
recordtype	SURis
fullrecord	<?xml version="1.0"?><rfc1807><datestamp>2025-02-19T14:42:41.6401134</datestamp><bib-version>v2</bib-version><id>66751</id><entry>2024-06-19</entry><title>Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain</title><swanseaauthors><author><sid>adab4560ff08c8e5181ff3f12a4c36fb</sid><ORCID>0000-0002-8987-0883</ORCID><firstname>Mohammad</firstname><surname>Monfared</surname><name>Mohammad Monfared</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2024-06-19</date><deptcode>ACEM</deptcode><abstract>This paper proposes a novel non-isolated ultrahigh step-down interleaved DC-DC converter with an extremely extended duty cycle based on the series capacitor and coupled-inductor techniques. The proposed converter utilizes a three-winding coupled inductor (TWCI) to enhance the step-down conversion ratio. In contrast to conventional coupled inductor-based step-down converters, its voltage gain improves as the turn ratio approaches unity. Consequently, coupled inductors have significantly lower winding losses. Furthermore, there is no extra constraint on the turn ratio of the TWCI. It results in a highly flexible voltage gain and more design freedom. Other advantages of the employed series capacitor and coupled inductor techniques can be listed as, zero voltage switching (ZVS) condition for all switches, significant reduction of the total switching device power (SDP) and recovery of the energy of leakage inductors. They all reduce power losses and costs. Steady-state analysis, derivation of voltage gain and design considerations are discussed in detail. Finally, a 200 W, 400-to-12 V experimental prototype is implemented to verify the effectiveness and feasibility of the proposed converter.</abstract><type>Journal Article</type><journal>IET Power Electronics</journal><volume>17</volume><journalNumber>14</journalNumber><paginationStart>1749</paginationStart><paginationEnd>1760</paginationEnd><publisher>Institution of Engineering and Technology (IET)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1755-4535</issnPrint><issnElectronic>1755-4543</issnElectronic><keywords>DC-DC; interleaved; ultrahigh gain; ZVS</keywords><publishedDay>4</publishedDay><publishedMonth>11</publishedMonth><publishedYear>2024</publishedYear><publishedDate>2024-11-04</publishedDate><doi>10.1049/pel2.12730</doi><url/><notes/><college>COLLEGE NANME</college><department>Aerospace, Civil, Electrical, and Mechanical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>ACEM</DepartmentCode><institution>Swansea University</institution><apcterm>SU Library paid the OA fee (TA Institutional Deal)</apcterm><funders/><projectreference/><lastEdited>2025-02-19T14:42:41.6401134</lastEdited><Created>2024-06-19T09:31:38.0997350</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering</level></path><authors><author><firstname>Wahid</firstname><surname>Eskandary</surname><order>1</order></author><author><firstname>Mohammad</firstname><surname>Monfared</surname><orcid>0000-0002-8987-0883</orcid><order>2</order></author><author><firstname>Ali</firstname><surname>Nikbahar</surname><order>3</order></author><author><firstname>Ahmad</firstname><surname>Mahdave</surname><order>4</order></author></authors><documents><document><filename>66751__30846__8f4042d4d74e4f0ab4cf41e88eaff1fd.pdf</filename><originalFilename>66751.VoR.pdf</originalFilename><uploaded>2024-07-08T16:22:27.7193746</uploaded><type>Output</type><contentLength>2361558</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>© 2024 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling	2025-02-19T14:42:41.6401134 v2 66751 2024-06-19 Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain adab4560ff08c8e5181ff3f12a4c36fb 0000-0002-8987-0883 Mohammad Monfared Mohammad Monfared true false 2024-06-19 ACEM This paper proposes a novel non-isolated ultrahigh step-down interleaved DC-DC converter with an extremely extended duty cycle based on the series capacitor and coupled-inductor techniques. The proposed converter utilizes a three-winding coupled inductor (TWCI) to enhance the step-down conversion ratio. In contrast to conventional coupled inductor-based step-down converters, its voltage gain improves as the turn ratio approaches unity. Consequently, coupled inductors have significantly lower winding losses. Furthermore, there is no extra constraint on the turn ratio of the TWCI. It results in a highly flexible voltage gain and more design freedom. Other advantages of the employed series capacitor and coupled inductor techniques can be listed as, zero voltage switching (ZVS) condition for all switches, significant reduction of the total switching device power (SDP) and recovery of the energy of leakage inductors. They all reduce power losses and costs. Steady-state analysis, derivation of voltage gain and design considerations are discussed in detail. Finally, a 200 W, 400-to-12 V experimental prototype is implemented to verify the effectiveness and feasibility of the proposed converter. Journal Article IET Power Electronics 17 14 1749 1760 Institution of Engineering and Technology (IET) 1755-4535 1755-4543 DC-DC; interleaved; ultrahigh gain; ZVS 4 11 2024 2024-11-04 10.1049/pel2.12730 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University SU Library paid the OA fee (TA Institutional Deal) 2025-02-19T14:42:41.6401134 2024-06-19T09:31:38.0997350 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Wahid Eskandary 1 Mohammad Monfared 0000-0002-8987-0883 2 Ali Nikbahar 3 Ahmad Mahdave 4 66751__30846__8f4042d4d74e4f0ab4cf41e88eaff1fd.pdf 66751.VoR.pdf 2024-07-08T16:22:27.7193746 Output 2361558 application/pdf Version of Record true © 2024 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License. true eng http://creativecommons.org/licenses/by/4.0/
title	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain
spellingShingle	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain Mohammad Monfared
title_short	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain
title_full	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain
title_fullStr	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain
title_full_unstemmed	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain
title_sort	Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain
author_id_str_mv	adab4560ff08c8e5181ff3f12a4c36fb
author_id_fullname_str_mv	adab4560ff08c8e5181ff3f12a4c36fb_***_Mohammad Monfared
author	Mohammad Monfared
author2	Wahid Eskandary Mohammad Monfared Ali Nikbahar Ahmad Mahdave
format	Journal article
container_title	IET Power Electronics
container_volume	17
container_issue	14
container_start_page	1749
publishDate	2024
institution	Swansea University
issn	1755-4535 1755-4543
doi_str_mv	10.1049/pel2.12730
publisher	Institution of Engineering and Technology (IET)
college_str	Faculty of Science and Engineering
hierarchytype
hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str	1
active_str	0
description	This paper proposes a novel non-isolated ultrahigh step-down interleaved DC-DC converter with an extremely extended duty cycle based on the series capacitor and coupled-inductor techniques. The proposed converter utilizes a three-winding coupled inductor (TWCI) to enhance the step-down conversion ratio. In contrast to conventional coupled inductor-based step-down converters, its voltage gain improves as the turn ratio approaches unity. Consequently, coupled inductors have significantly lower winding losses. Furthermore, there is no extra constraint on the turn ratio of the TWCI. It results in a highly flexible voltage gain and more design freedom. Other advantages of the employed series capacitor and coupled inductor techniques can be listed as, zero voltage switching (ZVS) condition for all switches, significant reduction of the total switching device power (SDP) and recovery of the energy of leakage inductors. They all reduce power losses and costs. Steady-state analysis, derivation of voltage gain and design considerations are discussed in detail. Finally, a 200 W, 400-to-12 V experimental prototype is implemented to verify the effectiveness and feasibility of the proposed converter.
published_date	2024-11-04T05:21:04Z
_version_	1851097417794977792
score	11.089407

Interleaved ZVS DC‐DC converter with ultrahigh step‐down and flexible gain

Similar Items