Optimal Coordinated Control Strategy of Clustered DC Microgrids under Load-Generation Uncertainties Based on GWO

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aut.relation.endpage1244
aut.relation.issue8en_NZ
aut.relation.journalElectronicsen_NZ
aut.relation.startpage1244
aut.relation.volume11en_NZ
aut.researcherLie, Tek
dc.contributor.authorAl-Tameemi, ZHAen_NZ
dc.contributor.authorLie, TTen_NZ
dc.contributor.authorFoo, Gen_NZ
dc.contributor.authorBlaabjerg, Fen_NZ
dc.date.accessioned2022-04-28T02:19:05Z
dc.date.available2022-04-28T02:19:05Z
dc.description.abstractThe coordination of clustered microgrids (MGs) needs to be achieved in a seamless manner to tackle generation-load mismatch among MGs. A hierarchical control strategy based on PI controllers for local and global layers has been proposed in the literature to coordinate DC MGs in a cluster. However, this control strategy may not be able to resist significant load disturbances and unexpected generated powers due to the sporadic nature of the renewable energy resources. These issues are inevitable because both layers are highly dependent on PI controllers who cannot fully overcome the abovementioned obstacles. Therefore, Grey Wolf Optimizer (GWO) is proposed to enhance the performance of the global layer by optimizing its PI controller parameters. The simulation studies were conducted using the well-established MATLAB Simulink, and the results reveal that the optimized global layer performs better than the conventional ones. It is noticed that not only accurate power-sharing and proper voltage regulation within ±1% along with fewer power losses are achieved by adopting the modified consensus algorithm for the clustered DC MGs, but also the settling time and overshoot/undershoot are reduced even with the enormous load and generation changes which indicates the effectiveness of the proposed method used in the paper.en_NZ
dc.identifier.citationElectronics, 11(8), 1244. https://doi.org/10.3390/electronics11081244
dc.identifier.doi10.3390/electronics11081244en_NZ
dc.identifier.issn2079-9292en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/15089
dc.languageenen_NZ
dc.publisherMDPI AGen_NZ
dc.relation.urihttps://www.mdpi.com/2079-9292/11/8/1244
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectDC microgrid; Voltage regulation; Power sharing; Hierarchical control strategy; GWO
dc.titleOptimal Coordinated Control Strategy of Clustered DC Microgrids under Load-Generation Uncertainties Based on GWOen_NZ
dc.typeJournal Article
pubs.elements-id453249
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Faculty of Design & Creative Technologies
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
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