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Control transition mode from voltage control to MPPT for PV generators in isolated DC microgrids

2022-05Journal article Restricted access
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dc.contributor.authorFernao Pires, Vitor
dc.contributor.authorCordeiro, Armando
dc.contributor.authorFoito, Daniel
dc.contributor.authorSilva, J. Fernando
dc.date.accessioned2022-06-01T09:52:44Z
dc.date.available2022-06-01T09:52:44Z
dc.date.issued2022-05
dc.description.abstractThe integration of photovoltaic (PV) power sources on a large scale into grid-tied and islanded solutions is now a reality. Despite the fluctuating characteristics of solar energy, the direct current (DC) nature of PV sources is highly compatible with DC microgrids compared with AC solutions. However, as more PV sources are being installed, challenges related to the control of DC microgrids are also increasing, especially for islanded applications. To ensure an appropriate transition from the maximum power point to DC bus voltage regulation of DC microgrids, novel control strategies must be designed, and this aspect is particularly critical when these grids operate without energy storage systems. We therefore propose a new control strategy for a PV generator for islanded DC microgrids without storage systems. Our approach allows for smooth switching from the maximum power point mode to the voltage control regulation mode (V control) when the available PV power is excessive, thus limiting the generated PV power and returning to maximum power point operation when all the available power is required. This allows us to control a DC microgrid without a storage system and provides a new alternative that offers a cost-effective solution for rural and deprived regions. Our solution combines the maximum power point tracking algorithm with a proportional integral compensator for V control and minimises undervoltage/overvoltage problems in the DC bus. The behaviour of the isolated DC microgrid under different conditions, for example in the case of transitions, perturbations, and different types of loads, is also studied and verified. The performance of the proposed control strategy is confirmed by several simulation and experimental tests.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPIRES, V. Fernão; [et al] – Control transition mode from voltage control to MPPT for PV generators in isolated DC microgrids. International Journal of Electrical Power & Energy Systems. ISSN 0142-0615. Vol. 137 (2022), pp. 1-15.pt_PT
dc.identifier.doi10.1016/j.ijepes.2021.107876pt_PT
dc.identifier.eissn1879-3517
dc.identifier.issn0142-0615
dc.identifier.urihttp://hdl.handle.net/10400.21/14679
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationInstituto de Engenharia de Sistemas e Computadores, Investigação e Desenvolvimento em Lisboa
dc.relationCentre of Technology and Systems
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0142061521010905?via%3Dihub#!pt_PT
dc.subjectPhotovoltaic systemspt_PT
dc.subjectMaximum power point trackingpt_PT
dc.subjectConstant powerpt_PT
dc.subjectQuadratic Boost converterpt_PT
dc.subjectDC microgridspt_PT
dc.titleControl transition mode from voltage control to MPPT for PV generators in isolated DC microgridspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstituto de Engenharia de Sistemas e Computadores, Investigação e Desenvolvimento em Lisboa
oaire.awardTitleCentre of Technology and Systems
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50021%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00066%2F2020/PT
oaire.citation.endPage15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleInternational Journal of Electrical Power & Energy Systemspt_PT
oaire.citation.volume137pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFernao Pires
person.familyNameCordeiro
person.familyNameFoito
person.givenNameVitor
person.givenNameArmando
person.givenNameDaniel
person.identifier1017494
person.identifier2692732
person.identifier.ciencia-idDC1C-D708-69C5
person.identifier.ciencia-idEE1F-34B0-4A02
person.identifier.orcid0000-0002-3764-0955
person.identifier.orcid0000-0001-6658-5783
person.identifier.orcid0000-0003-4831-9064
person.identifier.ridL-6836-2015
person.identifier.scopus-author-id7003305269
person.identifier.scopus-author-id16174830500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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