Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions

In a hybrid AC/DC microgrid (MG), power quality issues arise when an unbalanced load connects to the AC subgrid, which are not confined to the AC subsystem but extend to affect the DC subsystem as well. This paper investigates the potential power quality issues caused by AC imbalance, including DC v...

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Authors: Yang, Chang, Zheng, Tao, Song, Yufei, Hu, Jiefeng, Guerrero Zapata, Josep Maria|||0000-0001-5236-4592
Format: article
Publication Date:2025
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/443053
Online Access:https://hdl.handle.net/2117/443053
https://dx.doi.org/10.1109/TSG.2024.3458388
Access Level:Open access
Keyword:Power quality
Fluctuations
Hybrid power systems
Impedance
Voltage fluctuations
Harmonic analysis
Australia
Distributed control
Hybrid AC/DC microgrid
Power quality improvement
Unbalance compensation
Àrees temàtiques de la UPC::Enginyeria electrònica
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spelling Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditionsYang, ChangZheng, TaoSong, YufeiHu, JiefengGuerrero Zapata, Josep Maria|||0000-0001-5236-4592Power qualityFluctuationsHybrid power systemsImpedanceVoltage fluctuationsHarmonic analysisAustraliaDistributed controlHybrid AC/DC microgridPower quality improvementUnbalance compensationÀrees temàtiques de la UPC::Enginyeria electrònicaIn a hybrid AC/DC microgrid (MG), power quality issues arise when an unbalanced load connects to the AC subgrid, which are not confined to the AC subsystem but extend to affect the DC subsystem as well. This paper investigates the potential power quality issues caused by AC imbalance, including DC voltage fluctuation and AC current harmonics. Multiple control objectives are developed, aiming to eliminate DC fluctuation, reduce AC distortion and imbalance, and achieve negative sequence current sharing among distributed generations in the AC subgrid. To realize these control objectives, a two-layer coordinated control strategy is proposed. The first layer involves local interlinking converter (IC) control to improve the power quality of the DC subgrid, while the second layer focuses on distributed unbalance compensation control to improve the power quality of the AC subgrid. Finally, several experiments are conducted to verify the effectiveness of the proposed control strategy.Peer ReviewedInstitute of Electrical and Electronics Engineers (IEEE)20252025-03-0320252025-10-03journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/443053https://dx.doi.org/10.1109/TSG.2024.3458388reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4430532026-05-27T15:37:01Z
dc.title.none.fl_str_mv Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
title Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
spellingShingle Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
Yang, Chang
Power quality
Fluctuations
Hybrid power systems
Impedance
Voltage fluctuations
Harmonic analysis
Australia
Distributed control
Hybrid AC/DC microgrid
Power quality improvement
Unbalance compensation
Àrees temàtiques de la UPC::Enginyeria electrònica
title_short Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
title_full Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
title_fullStr Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
title_full_unstemmed Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
title_sort Coordinated control strategy of hybrid AC/DC microgrid for power quality improvement under unbalanced AC conditions
dc.creator.none.fl_str_mv Yang, Chang
Zheng, Tao
Song, Yufei
Hu, Jiefeng
Guerrero Zapata, Josep Maria|||0000-0001-5236-4592
author Yang, Chang
author_facet Yang, Chang
Zheng, Tao
Song, Yufei
Hu, Jiefeng
Guerrero Zapata, Josep Maria|||0000-0001-5236-4592
author_role author
author2 Zheng, Tao
Song, Yufei
Hu, Jiefeng
Guerrero Zapata, Josep Maria|||0000-0001-5236-4592
author2_role author
author
author
author
dc.subject.none.fl_str_mv Power quality
Fluctuations
Hybrid power systems
Impedance
Voltage fluctuations
Harmonic analysis
Australia
Distributed control
Hybrid AC/DC microgrid
Power quality improvement
Unbalance compensation
Àrees temàtiques de la UPC::Enginyeria electrònica
topic Power quality
Fluctuations
Hybrid power systems
Impedance
Voltage fluctuations
Harmonic analysis
Australia
Distributed control
Hybrid AC/DC microgrid
Power quality improvement
Unbalance compensation
Àrees temàtiques de la UPC::Enginyeria electrònica
description In a hybrid AC/DC microgrid (MG), power quality issues arise when an unbalanced load connects to the AC subgrid, which are not confined to the AC subsystem but extend to affect the DC subsystem as well. This paper investigates the potential power quality issues caused by AC imbalance, including DC voltage fluctuation and AC current harmonics. Multiple control objectives are developed, aiming to eliminate DC fluctuation, reduce AC distortion and imbalance, and achieve negative sequence current sharing among distributed generations in the AC subgrid. To realize these control objectives, a two-layer coordinated control strategy is proposed. The first layer involves local interlinking converter (IC) control to improve the power quality of the DC subgrid, while the second layer focuses on distributed unbalance compensation control to improve the power quality of the AC subgrid. Finally, several experiments are conducted to verify the effectiveness of the proposed control strategy.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-03-03
2025
2025-10-03
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/2117/443053
https://dx.doi.org/10.1109/TSG.2024.3458388
url https://hdl.handle.net/2117/443053
https://dx.doi.org/10.1109/TSG.2024.3458388
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 4.0 International
http://creativecommons.org/licenses/by/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 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
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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