Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters

With the increase of the renewable energy generator capacity, the requirements of the power system for grid-connected converters are evolve, which leads to diverse control schemes and increased complexity of systematic stability analysis. Although various frequency-domain models are developed to ide...

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Autores: Liu, Ni, Wang, Hong, Zhou, Weihua, Song, Jie, Zhang, Yiting, Prieto Araujo, Eduardo|||0000-0003-4349-5923, Chen, Zhe
Tipo de recurso: artículo
Fecha de publicación:2025
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:2117/426580
Acceso en línea:https://hdl.handle.net/2117/426580
https://dx.doi.org/10.35833/MPCE.2023.000842
Access Level:acceso abierto
Palabra clave:Grid forming
Impedance
Power system stability
Frequency-domain analysis
Analytical models
Grid following
Integrated circuit modeling
Voltage control
Stability criteria
Power system dynamics
Converter
Grid-forming (GFM)
Grid-following (GFL) impedance
Renewable energy
Stability analysis
Frequency-domain model
Àrees temàtiques de la UPC::Enginyeria elèctrica
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spelling Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming convertersLiu, NiWang, HongZhou, WeihuaSong, JieZhang, YitingPrieto Araujo, Eduardo|||0000-0003-4349-5923Chen, ZheGrid formingImpedancePower system stabilityFrequency-domain analysisAnalytical modelsGrid followingIntegrated circuit modelingVoltage controlStability criteriaPower system dynamicsConverterGrid-forming (GFM)Grid-following (GFL) impedanceRenewable energyStability analysisFrequency-domain modelÀrees temàtiques de la UPC::Enginyeria elèctricaWith the increase of the renewable energy generator capacity, the requirements of the power system for grid-connected converters are evolve, which leads to diverse control schemes and increased complexity of systematic stability analysis. Although various frequency-domain models are developed to identify oscillation causes, the discrepancies between them are rarely studied. This study aims to clarify these discrepancies and provide circuit insights for stability analysis by using different frequency-domain models. This study emphasizes the limitations of assuming that the transfer function of the self-stable converter does not have right half-plane (RHP) poles. To ensure that the self-stable converters are represented by a frequency-domain model without RHP poles, the applicability of this model of grid-following (GFL) and grid-forming (GFM) converters is discussed. This study recommends that the GFM converters with ideal sources should be represented in parallel with the P/Q-¿/V admittance model rather than the V-I impedance model. Two cases are conducted to illustrate the rationality of the P/Q-¿/V admittance model. Additionally, a hybrid frequency-domain modeling framework and stability criteria are proposed for the power system with several GFL and GFM converters. The stability criteria eliminates the need to check the RHP pole numbers in the non-passive subsystem when applying the Nyquist stability criterion, thereby reducing the complexity of stability analysis. Simulations are carried out to validate the correctness of the frequency-domain model and the stability criteria.20252025-01-0120252025-03-17journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/426580https://dx.doi.org/10.35833/MPCE.2023.000842reponame: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:2117/4265802026-05-27T15:37:01Z
dc.title.none.fl_str_mv Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
title Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
spellingShingle Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
Liu, Ni
Grid forming
Impedance
Power system stability
Frequency-domain analysis
Analytical models
Grid following
Integrated circuit modeling
Voltage control
Stability criteria
Power system dynamics
Converter
Grid-forming (GFM)
Grid-following (GFL) impedance
Renewable energy
Stability analysis
Frequency-domain model
Àrees temàtiques de la UPC::Enginyeria elèctrica
title_short Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
title_full Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
title_fullStr Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
title_full_unstemmed Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
title_sort Hybrid frequency-domain modeling and stability analysis for power systems with grid-following and grid-forming converters
dc.creator.none.fl_str_mv Liu, Ni
Wang, Hong
Zhou, Weihua
Song, Jie
Zhang, Yiting
Prieto Araujo, Eduardo|||0000-0003-4349-5923
Chen, Zhe
author Liu, Ni
author_facet Liu, Ni
Wang, Hong
Zhou, Weihua
Song, Jie
Zhang, Yiting
Prieto Araujo, Eduardo|||0000-0003-4349-5923
Chen, Zhe
author_role author
author2 Wang, Hong
Zhou, Weihua
Song, Jie
Zhang, Yiting
Prieto Araujo, Eduardo|||0000-0003-4349-5923
Chen, Zhe
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Grid forming
Impedance
Power system stability
Frequency-domain analysis
Analytical models
Grid following
Integrated circuit modeling
Voltage control
Stability criteria
Power system dynamics
Converter
Grid-forming (GFM)
Grid-following (GFL) impedance
Renewable energy
Stability analysis
Frequency-domain model
Àrees temàtiques de la UPC::Enginyeria elèctrica
topic Grid forming
Impedance
Power system stability
Frequency-domain analysis
Analytical models
Grid following
Integrated circuit modeling
Voltage control
Stability criteria
Power system dynamics
Converter
Grid-forming (GFM)
Grid-following (GFL) impedance
Renewable energy
Stability analysis
Frequency-domain model
Àrees temàtiques de la UPC::Enginyeria elèctrica
description With the increase of the renewable energy generator capacity, the requirements of the power system for grid-connected converters are evolve, which leads to diverse control schemes and increased complexity of systematic stability analysis. Although various frequency-domain models are developed to identify oscillation causes, the discrepancies between them are rarely studied. This study aims to clarify these discrepancies and provide circuit insights for stability analysis by using different frequency-domain models. This study emphasizes the limitations of assuming that the transfer function of the self-stable converter does not have right half-plane (RHP) poles. To ensure that the self-stable converters are represented by a frequency-domain model without RHP poles, the applicability of this model of grid-following (GFL) and grid-forming (GFM) converters is discussed. This study recommends that the GFM converters with ideal sources should be represented in parallel with the P/Q-¿/V admittance model rather than the V-I impedance model. Two cases are conducted to illustrate the rationality of the P/Q-¿/V admittance model. Additionally, a hybrid frequency-domain modeling framework and stability criteria are proposed for the power system with several GFL and GFM converters. The stability criteria eliminates the need to check the RHP pole numbers in the non-passive subsystem when applying the Nyquist stability criterion, thereby reducing the complexity of stability analysis. Simulations are carried out to validate the correctness of the frequency-domain model and the stability criteria.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-01
2025
2025-03-17
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/2117/426580
https://dx.doi.org/10.35833/MPCE.2023.000842
url https://hdl.handle.net/2117/426580
https://dx.doi.org/10.35833/MPCE.2023.000842
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.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
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score 15,811543

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