Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems

Photovoltaic (PV) power systems are becoming one of the most popular green power systems. Power converters are used in these systems. Among them, quasi-Z-source inverters (qZSIs) are currently on the rise. However, instabilities can appear in multi-terminal AC grid-connected power electronics, such...

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Autores: Monjo Mur, Lluís|||0000-0001-6106-097X, Sainz Sapera, Luis|||0000-0002-5670-0669, Pedra Durán, Joaquim|||0000-0003-2890-8160
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/396847
Acceso en línea:https://hdl.handle.net/2117/396847
https://dx.doi.org/10.1016/j.ijepes.2023.109639
Access Level:acceso abierto
Palabra clave:Photovoltaic power generation
Electric current converters
Impedance (Electricity)
Solar plants
Impedance inverter
State-space representation
Energia solar fotovoltaica
Convertidors de corrent elèctric
Impedància (Electricitat)
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
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repository_id_str
spelling Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systemsMonjo Mur, Lluís|||0000-0001-6106-097XSainz Sapera, Luis|||0000-0002-5670-0669Pedra Durán, Joaquim|||0000-0003-2890-8160Photovoltaic power generationElectric current convertersImpedance (Electricity)Solar plantsImpedance inverterState-space representationEnergia solar fotovoltaicaConvertidors de corrent elèctricImpedància (Electricitat)Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaicaÀrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctricÀrees temàtiques de la UPC::Enginyeria elèctricaPhotovoltaic (PV) power systems are becoming one of the most popular green power systems. Power converters are used in these systems. Among them, quasi-Z-source inverters (qZSIs) are currently on the rise. However, instabilities can appear in multi-terminal AC grid-connected power electronics, such as PV power systems, due to the interaction between power electronic controls and the grid. Modeling of qZSI-based PV power systems is lacking in the literature and stability assessment of grid-connected qZSI-based PV power systems is not yet well understood. Accordingly, the present paper contributes with an s-domain dq-real admittance transfer matrix model of qZSI-based PV power systems derived from their small-signal state-space averaged model. The paper also describes a systematic procedure to study multi-terminal AC grid-connected qZSI-based PV power systems by the nodal admittance method, where the proposed qZSI-based PV power system model is incorporated into the nodal admittance matrix to study stability concerns. Thus, AC grid dynamics in the presence of qZSI-based PV power systems can be investigated using impedance-based stability criteria. The proposed model and the procedure are applied in a stability study of two applications where solutions for improving stability issues are presented. In these applications, the two main causes of instabilities in AC-grid connected PV-qZ systems are analyzed in detail. The study is validated by PSCAD/EMTDC simulation.This work was supported in part by the Ministerio de Ciencia, Innovación [grant number PID2021-123633OB-C33].Peer ReviewedObjectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.1 - Per a 2030, garantir l’accés universal a serveis d’energia assequibles, confiables i modernsObjectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.2 - Per a 2030, augmentar substancialment el percentatge d’energia renovable en el con­junt de fonts d’energiaObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i InfraestructuraObjectius de Desenvolupament Sostenible::7 - Energia Assequible i No ContaminantObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura::9.a - Facilitar el desenvolupament d’infraestructures sostenibles i resilients als països en desenvolupament per mitjà de més suport financer, tecnològic i tècnic als països africans, països menys avançats, països en desenvolu­pament sense litoral i petits estats insulars en desenvolupamentElsevier20242024-01-0120232023-11-22journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/396847https://dx.doi.org/10.1016/j.ijepes.2023.109639reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3968472026-05-27T15:37:01Z
dc.title.none.fl_str_mv Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
title Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
spellingShingle Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
Monjo Mur, Lluís|||0000-0001-6106-097X
Photovoltaic power generation
Electric current converters
Impedance (Electricity)
Solar plants
Impedance inverter
State-space representation
Energia solar fotovoltaica
Convertidors de corrent elèctric
Impedància (Electricitat)
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
title_short Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
title_full Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
title_fullStr Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
title_full_unstemmed Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
title_sort Model of quasi-Z-source inverter-based PV power systems for stability studies of multi-terminal AC grid-connected PV power systems
dc.creator.none.fl_str_mv Monjo Mur, Lluís|||0000-0001-6106-097X
Sainz Sapera, Luis|||0000-0002-5670-0669
Pedra Durán, Joaquim|||0000-0003-2890-8160
author Monjo Mur, Lluís|||0000-0001-6106-097X
author_facet Monjo Mur, Lluís|||0000-0001-6106-097X
Sainz Sapera, Luis|||0000-0002-5670-0669
Pedra Durán, Joaquim|||0000-0003-2890-8160
author_role author
author2 Sainz Sapera, Luis|||0000-0002-5670-0669
Pedra Durán, Joaquim|||0000-0003-2890-8160
author2_role author
author
dc.subject.none.fl_str_mv Photovoltaic power generation
Electric current converters
Impedance (Electricity)
Solar plants
Impedance inverter
State-space representation
Energia solar fotovoltaica
Convertidors de corrent elèctric
Impedància (Electricitat)
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
topic Photovoltaic power generation
Electric current converters
Impedance (Electricity)
Solar plants
Impedance inverter
State-space representation
Energia solar fotovoltaica
Convertidors de corrent elèctric
Impedància (Electricitat)
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
Àrees temàtiques de la UPC::Enginyeria elèctrica
description Photovoltaic (PV) power systems are becoming one of the most popular green power systems. Power converters are used in these systems. Among them, quasi-Z-source inverters (qZSIs) are currently on the rise. However, instabilities can appear in multi-terminal AC grid-connected power electronics, such as PV power systems, due to the interaction between power electronic controls and the grid. Modeling of qZSI-based PV power systems is lacking in the literature and stability assessment of grid-connected qZSI-based PV power systems is not yet well understood. Accordingly, the present paper contributes with an s-domain dq-real admittance transfer matrix model of qZSI-based PV power systems derived from their small-signal state-space averaged model. The paper also describes a systematic procedure to study multi-terminal AC grid-connected qZSI-based PV power systems by the nodal admittance method, where the proposed qZSI-based PV power system model is incorporated into the nodal admittance matrix to study stability concerns. Thus, AC grid dynamics in the presence of qZSI-based PV power systems can be investigated using impedance-based stability criteria. The proposed model and the procedure are applied in a stability study of two applications where solutions for improving stability issues are presented. In these applications, the two main causes of instabilities in AC-grid connected PV-qZ systems are analyzed in detail. The study is validated by PSCAD/EMTDC simulation.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-11-22
2024
2024-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/396847
https://dx.doi.org/10.1016/j.ijepes.2023.109639
url https://hdl.handle.net/2117/396847
https://dx.doi.org/10.1016/j.ijepes.2023.109639
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869406411822202880
score 15.300724

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