New cascaded multilevel inverter with series connection of novel capacitor based basic units

Abstract This research proposes a novel multilevel inverter based on a new capacitor basic unit. Four capacitors are deployed in this unit to provide both even and odd voltage levels. Two‐cell proposed cascaded multilevel inverters and developed cascaded multilevel inverters are evaluated in order t...

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Main Authors: Sara Laali, Reza Nasiri‐Zarandi
Format: Article
Language:English
Published: Wiley 2023-08-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12502
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author Sara Laali
Reza Nasiri‐Zarandi
author_facet Sara Laali
Reza Nasiri‐Zarandi
author_sort Sara Laali
collection DOAJ
description Abstract This research proposes a novel multilevel inverter based on a new capacitor basic unit. Four capacitors are deployed in this unit to provide both even and odd voltage levels. Two‐cell proposed cascaded multilevel inverters and developed cascaded multilevel inverters are evaluated in order to improve the number of output levels generated. Calculations are made for all associated equations after determining the value of the necessary DC voltage source. Additionally, both inverters' switching tables and capacitor charge and discharge modes are fully explained. The merits and disadvantages of the proposed topology are then assessed by contrasting the cascaded multilevel inverter under consideration with a number of widely used multilevel inverters. The key benefit of the suggested architecture is the increase in the number of output levels produced while using fewer power electronic devices and DC voltage sources overall. The proposed one‐cell cascaded inverter is then utilized to evaluate the performance of the proposed topology using the relevant equations, simulations, and experimental data. The simulation is carried out using the EMTDC/PSCAD software, and a lab prototype yields the experimental data.
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spelling doaj.art-3febb71463eb4959ae64b372ad6edf5d2023-08-16T10:56:23ZengWileyIET Power Electronics1755-45351755-45432023-08-0116111796181310.1049/pel2.12502New cascaded multilevel inverter with series connection of novel capacitor based basic unitsSara Laali0Reza Nasiri‐Zarandi1Department of Electrical Engineering, North Tehran Branch Islamic Azad University Tehran IranElectrical Machine Research Department Niroo Research Institute (NRI) Tehran IranAbstract This research proposes a novel multilevel inverter based on a new capacitor basic unit. Four capacitors are deployed in this unit to provide both even and odd voltage levels. Two‐cell proposed cascaded multilevel inverters and developed cascaded multilevel inverters are evaluated in order to improve the number of output levels generated. Calculations are made for all associated equations after determining the value of the necessary DC voltage source. Additionally, both inverters' switching tables and capacitor charge and discharge modes are fully explained. The merits and disadvantages of the proposed topology are then assessed by contrasting the cascaded multilevel inverter under consideration with a number of widely used multilevel inverters. The key benefit of the suggested architecture is the increase in the number of output levels produced while using fewer power electronic devices and DC voltage sources overall. The proposed one‐cell cascaded inverter is then utilized to evaluate the performance of the proposed topology using the relevant equations, simulations, and experimental data. The simulation is carried out using the EMTDC/PSCAD software, and a lab prototype yields the experimental data.https://doi.org/10.1049/pel2.12502capacitor switchingDC–AC power convertors
spellingShingle Sara Laali
Reza Nasiri‐Zarandi
New cascaded multilevel inverter with series connection of novel capacitor based basic units
IET Power Electronics
capacitor switching
DC–AC power convertors
title New cascaded multilevel inverter with series connection of novel capacitor based basic units
title_full New cascaded multilevel inverter with series connection of novel capacitor based basic units
title_fullStr New cascaded multilevel inverter with series connection of novel capacitor based basic units
title_full_unstemmed New cascaded multilevel inverter with series connection of novel capacitor based basic units
title_short New cascaded multilevel inverter with series connection of novel capacitor based basic units
title_sort new cascaded multilevel inverter with series connection of novel capacitor based basic units
topic capacitor switching
DC–AC power convertors
url https://doi.org/10.1049/pel2.12502
work_keys_str_mv AT saralaali newcascadedmultilevelinverterwithseriesconnectionofnovelcapacitorbasedbasicunits
AT rezanasirizarandi newcascadedmultilevelinverterwithseriesconnectionofnovelcapacitorbasedbasicunits