No Cover Image

Journal article 339 views 88 downloads

Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress

Ahmad Mahdave, Mohammad Monfared Orcid Logo, Ali Nikbahar, Wahid Eskandary

IET Power Electronics, Volume: 18, Issue: 1

Swansea University Author: Mohammad Monfared Orcid Logo

  • 69770.VoR.pdf

    PDF | Version of Record

    © 2025 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License.

    Download (2.76MB)

Check full text

DOI (Published version): 10.1049/pel2.70073

Abstract

In magnetically coupled impedance source (MCIS) inverters, the turn ratio of the coupled inductor offers design flexibility. The leakage inductance, however, poses additional challenges, mainly voltage spikes. This paper proposes a novel quasi-Z-source inverter (qZSI) with the coupled inductor'...

Full description

Published in: IET Power Electronics
ISSN: 1755-4535 1755-4543
Published: Institution of Engineering and Technology (IET) 2025
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa69770
first_indexed 2025-06-19T11:39:03Z
last_indexed 2025-07-22T05:04:00Z
id cronfa69770
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2025-07-21T11:24:16.3426890</datestamp><bib-version>v2</bib-version><id>69770</id><entry>2025-06-19</entry><title>Cascadable Enhanced Quasi&#x2010;Z&#x2010;Source Inverter with Reduced Current Stress</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>2025-06-19</date><deptcode>ACEM</deptcode><abstract>In magnetically coupled impedance source (MCIS) inverters, the turn ratio of the coupled inductor offers design flexibility. The leakage inductance, however, poses additional challenges, mainly voltage spikes. This paper proposes a novel quasi-Z-source inverter (qZSI) with the coupled inductor's voltages effectively clamped in each operating state without any additional snubber, reducing the stresses on the semiconductors and providing a smooth DC-link voltage. It also features significantly lower peak shoot-through (ST) current compared to other high-gain impedance source networks, resulting in enhanced efficiency and lower rating of semiconductors. Furthermore, the input current is continuous and there is a common ground between the input source and the H-bridge, which brings practical advantages. Theoretical analysis and comparison of performance with similar topologies are presented and confirmed through extensive experiments on a 500 W prototype.</abstract><type>Journal Article</type><journal>IET Power Electronics</journal><volume>18</volume><journalNumber>1</journalNumber><paginationStart/><paginationEnd/><publisher>Institution of Engineering and Technology (IET)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1755-4535</issnPrint><issnElectronic>1755-4543</issnElectronic><keywords>active-switched; clamped capacitor z-source; high gain; magnetically coupled impedance source network; quasi-z-source inverter</keywords><publishedDay>1</publishedDay><publishedMonth>1</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-01-01</publishedDate><doi>10.1049/pel2.70073</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>Swansea University</funders><projectreference/><lastEdited>2025-07-21T11:24:16.3426890</lastEdited><Created>2025-06-19T12:36:08.2957887</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>Ahmad</firstname><surname>Mahdave</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>Wahid</firstname><surname>Eskandary</surname><order>4</order></author></authors><documents><document><filename>69770__34743__2764c13596f14f9db33ed064806a3d98.pdf</filename><originalFilename>69770.VoR.pdf</originalFilename><uploaded>2025-07-11T12:53:02.3671907</uploaded><type>Output</type><contentLength>2898655</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>&#xA9; 2025 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 2025-07-21T11:24:16.3426890 v2 69770 2025-06-19 Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress adab4560ff08c8e5181ff3f12a4c36fb 0000-0002-8987-0883 Mohammad Monfared Mohammad Monfared true false 2025-06-19 ACEM In magnetically coupled impedance source (MCIS) inverters, the turn ratio of the coupled inductor offers design flexibility. The leakage inductance, however, poses additional challenges, mainly voltage spikes. This paper proposes a novel quasi-Z-source inverter (qZSI) with the coupled inductor's voltages effectively clamped in each operating state without any additional snubber, reducing the stresses on the semiconductors and providing a smooth DC-link voltage. It also features significantly lower peak shoot-through (ST) current compared to other high-gain impedance source networks, resulting in enhanced efficiency and lower rating of semiconductors. Furthermore, the input current is continuous and there is a common ground between the input source and the H-bridge, which brings practical advantages. Theoretical analysis and comparison of performance with similar topologies are presented and confirmed through extensive experiments on a 500 W prototype. Journal Article IET Power Electronics 18 1 Institution of Engineering and Technology (IET) 1755-4535 1755-4543 active-switched; clamped capacitor z-source; high gain; magnetically coupled impedance source network; quasi-z-source inverter 1 1 2025 2025-01-01 10.1049/pel2.70073 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University SU Library paid the OA fee (TA Institutional Deal) Swansea University 2025-07-21T11:24:16.3426890 2025-06-19T12:36:08.2957887 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Ahmad Mahdave 1 Mohammad Monfared 0000-0002-8987-0883 2 Ali Nikbahar 3 Wahid Eskandary 4 69770__34743__2764c13596f14f9db33ed064806a3d98.pdf 69770.VoR.pdf 2025-07-11T12:53:02.3671907 Output 2898655 application/pdf Version of Record true © 2025 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 Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
spellingShingle Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
Mohammad Monfared
title_short Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
title_full Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
title_fullStr Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
title_full_unstemmed Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
title_sort Cascadable Enhanced Quasi‐Z‐Source Inverter with Reduced Current Stress
author_id_str_mv adab4560ff08c8e5181ff3f12a4c36fb
author_id_fullname_str_mv adab4560ff08c8e5181ff3f12a4c36fb_***_Mohammad Monfared
author Mohammad Monfared
author2 Ahmad Mahdave
Mohammad Monfared
Ali Nikbahar
Wahid Eskandary
format Journal article
container_title IET Power Electronics
container_volume 18
container_issue 1
publishDate 2025
institution Swansea University
issn 1755-4535
1755-4543
doi_str_mv 10.1049/pel2.70073
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 In magnetically coupled impedance source (MCIS) inverters, the turn ratio of the coupled inductor offers design flexibility. The leakage inductance, however, poses additional challenges, mainly voltage spikes. This paper proposes a novel quasi-Z-source inverter (qZSI) with the coupled inductor's voltages effectively clamped in each operating state without any additional snubber, reducing the stresses on the semiconductors and providing a smooth DC-link voltage. It also features significantly lower peak shoot-through (ST) current compared to other high-gain impedance source networks, resulting in enhanced efficiency and lower rating of semiconductors. Furthermore, the input current is continuous and there is a common ground between the input source and the H-bridge, which brings practical advantages. Theoretical analysis and comparison of performance with similar topologies are presented and confirmed through extensive experiments on a 500 W prototype.
published_date 2025-01-01T05:29:03Z
_version_ 1851097919613042688
score 11.089407

Similar Items