Repository logo
 
Publication

Compensation of unbalanced low-voltage grids using a photovoltaic generation system with a dual four-leg, two-level inverter

2022-01-20Journal article Open access
Simple item page
dc.contributor.authorFernao Pires, Vitor
dc.contributor.authorCordeiro, Armando
dc.contributor.authorFoito, Daniel
dc.contributor.authorJ. Pires, A.
dc.contributor.authorHao, Chen
dc.contributor.authorMartins, Joao
dc.contributor.authorCastro, Rui
dc.date.accessioned2022-02-21T15:47:08Z
dc.date.available2022-02-21T15:47:08Z
dc.date.issued2022-01-20
dc.description.abstractIn this paper, a grid-connected photovoltaic (PV) generation system is proposed with the purpose of providing support to low-voltage grids, namely through the elimination or attenuation of the grid imbalances. This compensation must consider the load types, which can be either linear or non-linear, and whether the reactive power and current harmonics generated by the non-linear loads need to be compensated in addition to the unbalanced active power. This must be well considered, since the compensation of all aspects requires oversized PV inverters. Thus, the different unbalanced compensation schemes are addressed. Several schemes for the generation of the inverter current references taking into consideration the compensation and load type are presented. For this PV generation system, a dual four-leg, two-level inverter is proposed. It provides full unbalanced compensation owing to the fourth leg of the inverter and also extends the AC voltage, which is important when this compensation is required. To control this inverter, a control scheme for the inverter that considers several compensation factors is proposed. A vector voltage modulator associated with the controller is another aspect that is addressed in the paper. This modulator considers the balance between the DC voltages of the inverters. Several compensation schemes are verified through computational tests. The results validate the effectiveness of the proposed PV generation system.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPIRES, Vítor Fernão; [et al] – Compensation of unbalanced low-voltage grids using a photovoltaic generation system with a dual four-leg, two-level inverter. Electronics. eISSN 2079-9292. Vol. 11, N.º 3 (2022), pp. 1-25.pt_PT
dc.identifier.doi10.3390/electronics11030320pt_PT
dc.identifier.eissn2079-9292
dc.identifier.urihttp://hdl.handle.net/10400.21/14323
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationUIDB/50021/2020 - FCTpt_PT
dc.relationUIDB/00066/2020 - FCTpt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2079-9292/11/3/320/htmlpt_PT
dc.subjectLow-voltage gridpt_PT
dc.subjectUnbalanced loadpt_PT
dc.subjectGrid supportpt_PT
dc.subjectDual inverterpt_PT
dc.subjectMultilevel inverterpt_PT
dc.subjectPhotovoltaic system (PV)pt_PT
dc.titleCompensation of unbalanced low-voltage grids using a photovoltaic generation system with a dual four-leg, two-level inverterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage25pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleElectronicspt_PT
oaire.citation.volume11pt_PT
person.familyNameFernao Pires
person.familyNameCordeiro
person.familyNameFoito
person.familyNamePinheiro Marques Pires
person.familyNameMartins
person.familyNameCastro
person.givenNameVitor
person.givenNameArmando
person.givenNameDaniel
person.givenNameArmando José
person.givenNameJoão
person.givenNameRui
person.identifier1017494
person.identifier2692732
person.identifier.ciencia-idDC1C-D708-69C5
person.identifier.ciencia-idEE1F-34B0-4A02
person.identifier.ciencia-idDF15-7E08-AAB6
person.identifier.ciencia-idCD13-5257-F4CA
person.identifier.ciencia-id5C1D-2997-B7A7
person.identifier.orcid0000-0002-3764-0955
person.identifier.orcid0000-0001-6658-5783
person.identifier.orcid0000-0003-4831-9064
person.identifier.orcid0000-0002-2248-2595
person.identifier.orcid0000-0002-3108-8880
person.identifier.ridL-6836-2015
person.identifier.ridG-8903-2011
person.identifier.scopus-author-id7003305269
person.identifier.scopus-author-id16174830500
person.identifier.scopus-author-id7201798943
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2891ab5a-f371-44ac-8d28-f49a8c3efabd
relation.isAuthorOfPublicationcb166065-fd85-42f7-88b5-a835226f38a1
relation.isAuthorOfPublication59408426-0129-4fe0-aaa4-954a8d57c0a9
relation.isAuthorOfPublicationccc20ac8-9fe8-410b-bda5-d983b97dc6ac
relation.isAuthorOfPublication952e4f81-8718-4d99-88f5-6479edf127b9
relation.isAuthorOfPublication971947b1-467a-40ee-8227-30c9cd492c48
relation.isAuthorOfPublication.latestForDiscovery952e4f81-8718-4d99-88f5-6479edf127b9

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Compensation_ACordeiro.pdf
Size:
8.97 MB
Format:
Adobe Portable Document Format
Download

Collections

ISEL - Eng. Electrotécn. - Artigos