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A multilevel converter topology for a STATCOM system based on Four-leg Two-level inverters and cascaded Scott Transformers

2021-06-03Journal article Restricted access
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dc.contributor.authorFernao Pires, Vitor
dc.contributor.authorCordeiro, Armando
dc.contributor.authorFoito, Daniel
dc.contributor.authorSilva, Fernando
dc.date.accessioned2021-06-09T16:43:08Z
dc.date.available2021-06-09T16:43:08Z
dc.date.issued2021-06-03
dc.description.abstractThis paper presents a new power electronic topology for a STATCOM allowing the generation of multilevel AC voltages. This topology is characterized by a modular configuration since it uses two well known four-leg two-level voltage source inverters. A Scott transformer with multiple secondary windings connects the two four-leg inverters to the grid. One of the important features of the proposed power topology is the capability to generate AC voltages with high number of levels, in spite of using only two four-leg two-level voltage source inverters. To maximize the number of voltage levels a geometric progression ratio of 3 between the windings of the transformers connected in cascade is proposed. However, to reduce the turns-ratio span, alternatively a fractional geometric ratio of 1.5 is also proposed and analyzed. A control strategy adapted to the proposed power converter topology is also presented. Besides the control of the reactive power the regulation of the four-leg inverter DC voltage will also be considered. To support the theoretical studies and assumptions, simulations and experiments are presented. Experimental results were obtained using a low power laboratory prototype. The results shown give evidence to the characteristics and features of the proposed power converter topology and control system.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPIRES, Vítor; [et al] – A multilevel converter topology for a STATCOM system based on Four-Leg Two-Level inverters and cascaded Scott transformers. : IEEE Transactions on Power Delivery. ISSN 0885-8977. (2021), pp. 1-12pt_PT
dc.identifier.doi10.1109/TPWRD.2021.3086399pt_PT
dc.identifier.eissn1937-4208
dc.identifier.issn0885-8977
dc.identifier.urihttp://hdl.handle.net/10400.21/13431
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIEEEpt_PT
dc.relationUIDB/50021/2020 - FCTpt_PT
dc.relation.publisherversionhttps://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9446577pt_PT
dc.subjectStatic Synchronous Compensator (STATCOM)pt_PT
dc.subjectMultilevel power converterpt_PT
dc.subjectFour-Leg Two-level voltage source converterspt_PT
dc.subjectScott Transformerpt_PT
dc.titleA multilevel converter topology for a STATCOM system based on Four-leg Two-level inverters and cascaded Scott Transformerspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage12pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleIEEE Transactions on Power Deliverypt_PT
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
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2891ab5a-f371-44ac-8d28-f49a8c3efabd
relation.isAuthorOfPublicationcb166065-fd85-42f7-88b5-a835226f38a1
relation.isAuthorOfPublication59408426-0129-4fe0-aaa4-954a8d57c0a9
relation.isAuthorOfPublication.latestForDiscoverycb166065-fd85-42f7-88b5-a835226f38a1

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