Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy

Abstract This paper examines a new topology of the AC‐AC Z‐source converter based on asymmetric Gama structure is proposed. The proposed converter has all the common features such as common ground between input and output, realizing the continuous input current and the ability of boost in‐phase and...

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Main Authors: Seyyed Mohammad Javad Mousavi, Ebrahim Babaei, Darioush Alizadeh, Hasan Komurcugil
Format: Article
Language:English
Published: Wiley 2021-02-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12055
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author Seyyed Mohammad Javad Mousavi
Ebrahim Babaei
Darioush Alizadeh
Hasan Komurcugil
author_facet Seyyed Mohammad Javad Mousavi
Ebrahim Babaei
Darioush Alizadeh
Hasan Komurcugil
author_sort Seyyed Mohammad Javad Mousavi
collection DOAJ
description Abstract This paper examines a new topology of the AC‐AC Z‐source converter based on asymmetric Gama structure is proposed. The proposed converter has all the common features such as common ground between input and output, realizing the continuous input current and the ability of boost in‐phase and buck out of‐phase. In order to generate a high voltage gain in the proposed converter, a coupled inductor with Gama structure is used. In this structure, as the turn ratio approaches to one, it gives a higher voltage gain. In order to damping the voltage and current overshoots on the proposed converter switches, a safe commutation strategy is used. Due to the specific topology of the proposed converter, the output filter has been eliminated, so the size and cost of the proposed converter are reduced. Circuit analysis and performance principles are presented in detail and a laboratory prototype implemented to confirm the practicality of the proposed converter.
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spelling doaj.art-ce477135962c494fa6a5e561a5641c972022-12-22T03:56:55ZengWileyIET Power Electronics1755-45351755-45432021-02-0114368068910.1049/pel2.12055Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategySeyyed Mohammad Javad Mousavi0Ebrahim Babaei1Darioush Alizadeh2Hasan Komurcugil3Faculty of Electrical and Computer Engineering University of Tabriz Tabriz IranFaculty of Electrical and Computer Engineering University of Tabriz Tabriz IranFaculty of Electrical and Computer Engineering University of Tabriz Tabriz IranComputer Engineering Department Eastern Mediterranean University Famagusta, North Cyprus Mersin 10 TurkeyAbstract This paper examines a new topology of the AC‐AC Z‐source converter based on asymmetric Gama structure is proposed. The proposed converter has all the common features such as common ground between input and output, realizing the continuous input current and the ability of boost in‐phase and buck out of‐phase. In order to generate a high voltage gain in the proposed converter, a coupled inductor with Gama structure is used. In this structure, as the turn ratio approaches to one, it gives a higher voltage gain. In order to damping the voltage and current overshoots on the proposed converter switches, a safe commutation strategy is used. Due to the specific topology of the proposed converter, the output filter has been eliminated, so the size and cost of the proposed converter are reduced. Circuit analysis and performance principles are presented in detail and a laboratory prototype implemented to confirm the practicality of the proposed converter.https://doi.org/10.1049/pel2.12055Power electronics, supply and supervisory circuitsPower convertors and power supplies to apparatusAC‐AC power convertorsDC‐DC power convertors
spellingShingle Seyyed Mohammad Javad Mousavi
Ebrahim Babaei
Darioush Alizadeh
Hasan Komurcugil
Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
IET Power Electronics
Power electronics, supply and supervisory circuits
Power convertors and power supplies to apparatus
AC‐AC power convertors
DC‐DC power convertors
title Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
title_full Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
title_fullStr Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
title_full_unstemmed Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
title_short Single‐phase AC‐AC Z‐source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
title_sort single phase ac ac z source converter based on asymmetrical gamma structure with continuous input current and safe commutation strategy
topic Power electronics, supply and supervisory circuits
Power convertors and power supplies to apparatus
AC‐AC power convertors
DC‐DC power convertors
url https://doi.org/10.1049/pel2.12055
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