A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating

A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating

Employing partial power processing (PPP) technique for quasi Z-source converter (QZSC) a new structure of the converter is presented. Using PPP technique although eliminates electrical insolation, but permits reducing voltage and current stress at the semiconductors, if compared with full power prop...

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Main Authors: Shahin Honarmand, Amirhossein Rajaei, Mahdi Shahparasti, Alvaro Luna, Edris Pouresmaeil
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Energies
Subjects:
partial power processing
quasi Z-source converters
high step up converters
Online Access:https://www.mdpi.com/1996-1073/12/11/2139
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spelling doaj-892812d98995441489eb153d05dd5f6b2020-11-25T01:51:03ZengMDPI AGEnergies1996-10732019-06-011211213910.3390/en12112139en12112139A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power RatingShahin Honarmand0Amirhossein Rajaei1Mahdi Shahparasti2Alvaro Luna3Edris Pouresmaeil4Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz 71557-13876, IranDepartment of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz 71557-13876, IranDepartment of Electrical Engineering, Technical University of Catalonia, 08222 Barcelona, SpainDepartment of Electrical Engineering, Technical University of Catalonia, 08222 Barcelona, SpainDepartment of Electrical Engineering and Automation, Aalto University, 02150 Oslo, FinlandEmploying partial power processing (PPP) technique for quasi Z-source converter (QZSC) a new structure of the converter is presented. Using PPP technique although eliminates electrical insolation, but permits reducing voltage and current stress at the semiconductors, if compared with full power proposals. In this work, two PPP structures are discussed: A first one, similar to the basic topology, where the output voltage of the power converter is in series with the input voltage; and a second one, where the output is in series with the capacitor of the QZSC. This minor modification, which requires no extra elements, improves the power rating, voltage gain, and requires a lower transformation ratio. An experimental prototype of the proposed converter has been tested and the results are compared with other implementations, permitting to validate the theoretical analysis as well as the advantages that this proposal provides.https://www.mdpi.com/1996-1073/12/11/2139partial power processingquasi Z-source convertershigh step up converters
collection DOAJ
language English
format Article
sources DOAJ
author Shahin Honarmand
Amirhossein Rajaei
Mahdi Shahparasti
Alvaro Luna
Edris Pouresmaeil
spellingShingle Shahin Honarmand
Amirhossein Rajaei
Mahdi Shahparasti
Alvaro Luna
Edris Pouresmaeil
A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating
Energies
partial power processing
quasi Z-source converters
high step up converters
author_facet Shahin Honarmand
Amirhossein Rajaei
Mahdi Shahparasti
Alvaro Luna
Edris Pouresmaeil
author_sort Shahin Honarmand
title A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating
title_short A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating
title_full A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating
title_fullStr A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating
title_full_unstemmed A Modified Partial Power structure for Quasi Z-Source Converter to Improve Voltage Gain and Power Rating
title_sort modified partial power structure for quasi z-source converter to improve voltage gain and power rating
publisher MDPI AG
series Energies
issn 1996-1073
publishDate 2019-06-01
description Employing partial power processing (PPP) technique for quasi Z-source converter (QZSC) a new structure of the converter is presented. Using PPP technique although eliminates electrical insolation, but permits reducing voltage and current stress at the semiconductors, if compared with full power proposals. In this work, two PPP structures are discussed: A first one, similar to the basic topology, where the output voltage of the power converter is in series with the input voltage; and a second one, where the output is in series with the capacitor of the QZSC. This minor modification, which requires no extra elements, improves the power rating, voltage gain, and requires a lower transformation ratio. An experimental prototype of the proposed converter has been tested and the results are compared with other implementations, permitting to validate the theoretical analysis as well as the advantages that this proposal provides.
topic partial power processing
quasi Z-source converters
high step up converters
url https://www.mdpi.com/1996-1073/12/11/2139
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