Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components

A high voltage gain inverter is a critical component of any high voltage power system, which feeds from a limited DC source. Numerous inventive solutions proposed to increase the boost factor. However, many of them have a large number of components and no short circuit immunity. While retaining the...

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Main Authors: Sohrab Naderi, Hasan Rastegar
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10011407/
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author Sohrab Naderi
Hasan Rastegar
author_facet Sohrab Naderi
Hasan Rastegar
author_sort Sohrab Naderi
collection DOAJ
description A high voltage gain inverter is a critical component of any high voltage power system, which feeds from a limited DC source. Numerous inventive solutions proposed to increase the boost factor. However, many of them have a large number of components and no short circuit immunity. While retaining the inherent characteristics of conventional quasi Z-source inverters (qZSI) with fewer components, this paper proposes two new active impedance source inverters based on qZSIs that utilize an additional active switch. In addition to the inherent benefits of qZSIs, the proposed topologies have a higher boost capability. They have an additional degree of freedom that allows the voltage ratio of the capacitors adjusted to any desired value without affecting the gain of the converter. They can also control the dc-link voltage without being fully dependent on the shoot-through time duration, resulting in a higher utilization factor for the dc-link. Additionally, the proposed topologies establish a common-ground connection between the input and output terminals, which is useful for some applications. In order to drive the inverters’ boost factor, the operation and steady-state analysis described. Furthermore, the comparative analysis done to illustrate the features of proposed topologies. Finally, a simulation and experimental analysis carried out to validate that the proposed inverters are feasible.
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spelling doaj.art-be8385fc42d246e984a04319c6e4ab792023-01-24T00:00:22ZengIEEEIEEE Access2169-35362023-01-01115804581510.1109/ACCESS.2023.323527110011407Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive ComponentsSohrab Naderi0https://orcid.org/0000-0001-6943-9722Hasan Rastegar1https://orcid.org/0000-0001-7027-8794Department of Electrical Engineering, Amirkabir University of Technology, Tehran, IranDepartment of Electrical Engineering, Amirkabir University of Technology, Tehran, IranA high voltage gain inverter is a critical component of any high voltage power system, which feeds from a limited DC source. Numerous inventive solutions proposed to increase the boost factor. However, many of them have a large number of components and no short circuit immunity. While retaining the inherent characteristics of conventional quasi Z-source inverters (qZSI) with fewer components, this paper proposes two new active impedance source inverters based on qZSIs that utilize an additional active switch. In addition to the inherent benefits of qZSIs, the proposed topologies have a higher boost capability. They have an additional degree of freedom that allows the voltage ratio of the capacitors adjusted to any desired value without affecting the gain of the converter. They can also control the dc-link voltage without being fully dependent on the shoot-through time duration, resulting in a higher utilization factor for the dc-link. Additionally, the proposed topologies establish a common-ground connection between the input and output terminals, which is useful for some applications. In order to drive the inverters’ boost factor, the operation and steady-state analysis described. Furthermore, the comparative analysis done to illustrate the features of proposed topologies. Finally, a simulation and experimental analysis carried out to validate that the proposed inverters are feasible.https://ieeexplore.ieee.org/document/10011407/Active impedance sourcehigh boostmodified quasi Z-source invertertwo-level inverter
spellingShingle Sohrab Naderi
Hasan Rastegar
Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components
IEEE Access
Active impedance source
high boost
modified quasi Z-source inverter
two-level inverter
title Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components
title_full Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components
title_fullStr Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components
title_full_unstemmed Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components
title_short Two New Common Ground Extended-Boost Active Quasi Z-Source Inverter With Reduced Passive Components
title_sort two new common ground extended boost active quasi z source inverter with reduced passive components
topic Active impedance source
high boost
modified quasi Z-source inverter
two-level inverter
url https://ieeexplore.ieee.org/document/10011407/
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AT hasanrastegar twonewcommongroundextendedboostactivequasizsourceinverterwithreducedpassivecomponents