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dc.contributor.authorDehghani Tafti, Hosseinen
dc.contributor.authorMaswood, Ali Iftekharen
dc.contributor.authorKonstantinou, Georgiosen
dc.contributor.authorTownsend, Christopher Daviden
dc.contributor.authorAcuna, Pabloen
dc.contributor.authorPou, Josepen
dc.identifier.citationDehghani Tafti, H., Maswood, A. I., Konstantinou, G., Townsend, C. D., Acuna, P., & Pou, J. (2018). Flexible Control of Photovoltaic Grid-Connected Cascaded H-Bridge Converters during Unbalanced Voltage Sags. IEEE Transactions on Industrial Electronics, 65(8), 6229-6238.en
dc.description.abstractMultilevel cascade H-bridge (CHB) converters are one of the promising solutions for medium- and large-scale grid-connected photovoltaic power plants. However, there is a lack of a complete study about their operation during voltage sags. This paper proposes a flexible control strategy for the operation of photovoltaic grid-connected CHB inverters during unbalanced voltage sags. The key novelty is that the proposed strategy is able to inject both active and reactive powers to the grid with either balanced or unbalanced currents, while ensuring that all dc-link capacitor voltages remain balanced. The simulation and experimental evaluations of a 9-kVA grid-connected seven-level CHB illustrate and validate the performance of the proposed strategy for the operation of the grid-connected CHB converter during different unbalanced voltage sags.en
dc.format.extent9 p.en
dc.relation.ispartofseriesIEEE Transactions on Industrial Electronicsen
dc.rights© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [].en
dc.subjectPhotovoltaic Systemsen
dc.subjectMultilevel Converteren
dc.titleFlexible Control of Photovoltaic Grid-Connected Cascaded H-Bridge Converters during Unbalanced Voltage Sagsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.description.versionAccepted versionen
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