Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips

Due to the replacement of synchronous generators, grid operators are currently demanding to control grid-connected inverters in grid–forming mode to make them participate in the maintenance of the grid. To carry this out, the traditional droop controls based on the active and reactive powers are usu...

Descripción completa

Detalles Bibliográficos
Autores: Erdocia Zabala, Ioseba, Urtasun Erburu, Andoni, Marroyo Palomo, Luis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2022
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/44676
Acceso en línea:https://hdl.handle.net/2454/44676
Access Level:acceso abierto
Palabra clave:Current limitation
Frequency control
Grid-forming inverter
Inverters
Power angle
Power system stability
Rats
Transient analysis
Transient stability
Voltage control
Voltage dip
Voltage fluctuations
id ES_d6ca2e7e6f64beee5fe5eae5ded70bc0
oai_identifier_str oai:academica-e.unavarra.es:2454/44676
network_acronym_str ES
network_name_str España
repository_id_str
spelling Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dipsErdocia Zabala, IosebaUrtasun Erburu, AndoniMarroyo Palomo, LuisCurrent limitationFrequency controlGrid-forming inverterInvertersPower anglePower system stabilityRatsTransient analysisTransient stabilityVoltage controlVoltage dipVoltage fluctuationsDue to the replacement of synchronous generators, grid operators are currently demanding to control grid-connected inverters in grid–forming mode to make them participate in the maintenance of the grid. To carry this out, the traditional droop controls based on the active and reactive powers are usually adopted, achieving a satisfactory performance in normal operation. Nevertheless, the power-frequency (P-ω) droop may become transiently unstable under voltage dips. This is because of the modification of the active power response caused by the inverter current limitation together with the voltage reduction. To enhance this, the power angle-frequency (δinv-ω) droop is proposed, consisting in employing an estimation of the inverter power angle as input to obtain the inverter frequency. The proposed method provides the inverter with the same performance as the P-ω droop in normal operation, while enhancing considerably the transient stability margins under current limitation. This is thanks to the higher variation of the inverter power angle with the phase difference between the inverter and the grid. Simulation results show the transient stability problems of the P-ω droop as well as the superior performance of the proposed δinv-ω droop control, which has also been verified by means of HIL results.This work has been supported by the Spanish State Research Agency (AEI) under grant PID2019-110956RB-I00 /AEI/ 10.13039/501100011033, and by the Public University of Navarre through a doctoral scholarship.IEEEIngeniería Eléctrica, Electrónica y de ComunicaciónIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2454/44676reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110956RB-I00© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/446762026-06-17T12:41:47Z
dc.title.none.fl_str_mv Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
title Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
spellingShingle Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
Erdocia Zabala, Ioseba
Current limitation
Frequency control
Grid-forming inverter
Inverters
Power angle
Power system stability
Rats
Transient analysis
Transient stability
Voltage control
Voltage dip
Voltage fluctuations
title_short Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
title_full Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
title_fullStr Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
title_full_unstemmed Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
title_sort Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
dc.creator.none.fl_str_mv Erdocia Zabala, Ioseba
Urtasun Erburu, Andoni
Marroyo Palomo, Luis
author Erdocia Zabala, Ioseba
author_facet Erdocia Zabala, Ioseba
Urtasun Erburu, Andoni
Marroyo Palomo, Luis
author_role author
author2 Urtasun Erburu, Andoni
Marroyo Palomo, Luis
author2_role author
author
dc.contributor.none.fl_str_mv Ingeniería Eléctrica, Electrónica y de Comunicación
Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
dc.subject.none.fl_str_mv Current limitation
Frequency control
Grid-forming inverter
Inverters
Power angle
Power system stability
Rats
Transient analysis
Transient stability
Voltage control
Voltage dip
Voltage fluctuations
topic Current limitation
Frequency control
Grid-forming inverter
Inverters
Power angle
Power system stability
Rats
Transient analysis
Transient stability
Voltage control
Voltage dip
Voltage fluctuations
description Due to the replacement of synchronous generators, grid operators are currently demanding to control grid-connected inverters in grid–forming mode to make them participate in the maintenance of the grid. To carry this out, the traditional droop controls based on the active and reactive powers are usually adopted, achieving a satisfactory performance in normal operation. Nevertheless, the power-frequency (P-ω) droop may become transiently unstable under voltage dips. This is because of the modification of the active power response caused by the inverter current limitation together with the voltage reduction. To enhance this, the power angle-frequency (δinv-ω) droop is proposed, consisting in employing an estimation of the inverter power angle as input to obtain the inverter frequency. The proposed method provides the inverter with the same performance as the P-ω droop in normal operation, while enhancing considerably the transient stability margins under current limitation. This is thanks to the higher variation of the inverter power angle with the phase difference between the inverter and the grid. Simulation results show the transient stability problems of the P-ω droop as well as the superior performance of the proposed δinv-ω droop control, which has also been verified by means of HIL results.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/44676
url https://hdl.handle.net/2454/44676
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110956RB-I00
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869420915265110016
score 15,81155

Similares en LA Referencia