A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology

In this paper a novel packed U cell (PUC) based multilevel grid connected inverter is proposed. Unlike the U cell arrangement which consists of two power switches and one capacitor, in the proposed converter topology a lower DC power supply from renewable energy resources such as photovoltaic arrays...

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Autores principales: Pakdel, Majid, Jalilzadeh, Saeid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622103/
https://www.ncbi.nlm.nih.gov/pubmed/28963473
http://dx.doi.org/10.1038/s41598-017-12806-5
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author Pakdel, Majid
Jalilzadeh, Saeid
author_facet Pakdel, Majid
Jalilzadeh, Saeid
author_sort Pakdel, Majid
collection PubMed
description In this paper a novel packed U cell (PUC) based multilevel grid connected inverter is proposed. Unlike the U cell arrangement which consists of two power switches and one capacitor, in the proposed converter topology a lower DC power supply from renewable energy resources such as photovoltaic arrays (PV) is used as a base power source. The proposed topology offers higher efficiency and lower cost using a small number of power switches and a lower DC power source which is supplied from renewable energy resources. Other capacitor voltages are extracted from the base lower DC power source using isolated DC-DC power converters. The operation principle of proposed transformerless multilevel grid connected inverter is analyzed theoretically. Operation of the proposed multilevel grid connected inverter is verified through simulation studies. An experimental prototype using STM32F407 discovery controller board is performed to verify the simulation results.
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spelling pubmed-56221032017-10-12 A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology Pakdel, Majid Jalilzadeh, Saeid Sci Rep Article In this paper a novel packed U cell (PUC) based multilevel grid connected inverter is proposed. Unlike the U cell arrangement which consists of two power switches and one capacitor, in the proposed converter topology a lower DC power supply from renewable energy resources such as photovoltaic arrays (PV) is used as a base power source. The proposed topology offers higher efficiency and lower cost using a small number of power switches and a lower DC power source which is supplied from renewable energy resources. Other capacitor voltages are extracted from the base lower DC power source using isolated DC-DC power converters. The operation principle of proposed transformerless multilevel grid connected inverter is analyzed theoretically. Operation of the proposed multilevel grid connected inverter is verified through simulation studies. An experimental prototype using STM32F407 discovery controller board is performed to verify the simulation results. Nature Publishing Group UK 2017-09-29 /pmc/articles/PMC5622103/ /pubmed/28963473 http://dx.doi.org/10.1038/s41598-017-12806-5 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Pakdel, Majid
Jalilzadeh, Saeid
A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology
title A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology
title_full A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology
title_fullStr A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology
title_full_unstemmed A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology
title_short A New Family of Multilevel Grid Connected Inverters Based on Packed U Cell Topology
title_sort new family of multilevel grid connected inverters based on packed u cell topology
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622103/
https://www.ncbi.nlm.nih.gov/pubmed/28963473
http://dx.doi.org/10.1038/s41598-017-12806-5
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