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Fast optimum-predictive control and capacitor voltage balancing strategy for bipolar back-to-back NPC converters in high-voltage direct current transmission systems

2011-03Journal article Open access
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dc.contributor.authorChaves, Miguel
dc.contributor.authorMargato, Elmano
dc.contributor.authorSilva, J. F.
dc.contributor.authorPinto, S. F.
dc.contributor.authorSantana, J.
dc.date.accessioned2013-02-15T12:28:18Z
dc.date.available2013-02-15T12:28:18Z
dc.date.issued2011-03
dc.description.abstractMultilevel power converters have been introduced as the solution for high-power high-voltage switching applications where they have well-known advantages. Recently, full back-to-back connected multilevel neutral point diode clamped converters (NPC converter) have been used inhigh-voltage direct current (HVDC) transmission systems. Bipolar-connected back-to-back NPC converters have advantages in long-distance HVDCtransmission systems over the full back-to-back connection, but greater difficulty to balance the dc capacitor voltage divider on both sending and receiving end NPC converters. This study shows that power flow control and dc capacitor voltage balancing are feasible using fast optimum-predictive-based controllers in HVDC systems using bipolar back-to-back-connected five-level NPC multilevel converters. For both converter sides, the control strategytakes in account active and reactive power, which establishes ac grid currents in both ends, and guarantees the balancing of dc bus capacitor voltages inboth NPC converters. Additionally, the semiconductor switching frequency is minimised to reduce switching losses. The performance and robustness of the new fast predictive control strategy, and its capability to solve the DC capacitor voltage balancing problem of bipolar-connected back-to-back NPCconverters are evaluated.por
dc.identifier.citationCHAVES, M.; MARGATO, E.; SILVA, J. F.; PINTO, S. F.; SANTANA, J. - Fast optimum-predictive control and capacitor voltage balancing strategy for bipolar back-to-back NPC converters in high-voltage direct current transmission systems. IET Generation Transmission & Distribution. ISSN 1751-8687. Vol. 5, n.º 3 (2011) p. 368-375.por
dc.identifier.issn1751-8687
dc.identifier.urihttp://hdl.handle.net/10400.21/2199
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherINST Engineering Technology-IETpor
dc.subjectMultilevel Converterpor
dc.subjectInverterpor
dc.subjectLimitspor
dc.titleFast optimum-predictive control and capacitor voltage balancing strategy for bipolar back-to-back NPC converters in high-voltage direct current transmission systemspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceHertfordpor
oaire.citation.endPage375por
oaire.citation.issue3por
oaire.citation.startPage368por
oaire.citation.titleIET Generation Transmission & Distributionpor
oaire.citation.volume5por
person.familyNameChaves
person.familyNameMargato
person.givenNameMiguel
person.givenNameElmano
person.identifier.ciencia-id2F12-3295-B091
person.identifier.orcid0000-0003-2377-6680
person.identifier.orcid0000-0002-8601-9145
person.identifier.ridA-4532-2014
person.identifier.scopus-author-id26530942300
person.identifier.scopus-author-id6505972972
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationaf867b60-1a8f-4e3a-9cba-01468311303e
relation.isAuthorOfPublication9f983bef-f0ef-4660-b6e9-e9beebaf6acc
relation.isAuthorOfPublication.latestForDiscovery9f983bef-f0ef-4660-b6e9-e9beebaf6acc

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