Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/152422
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dc.contributor.authorBeniwal, Nehaen_US
dc.contributor.authorDehghani Tafti, Hosseinen_US
dc.contributor.authorFarivar, Glen Ghiasen_US
dc.contributor.authorCeballos, Salvadoren_US
dc.contributor.authorPou, Josepen_US
dc.contributor.authorBlaabjerg, Fredeen_US
dc.date.accessioned2021-08-11T08:40:42Z-
dc.date.available2021-08-11T08:40:42Z-
dc.date.issued2021-
dc.identifier.citationBeniwal, N., Dehghani Tafti, H., Farivar, G. G., Ceballos, S., Pou, J. & Blaabjerg, F. (2021). A control strategy for dual-input neutral-point-clamped inverter-based grid-connected photovoltaic system. IEEE Transactions On Power Electronics, 36(9), 9743-9757. https://dx.doi.org/10.1109/TPEL.2021.3063745en_US
dc.identifier.issn0885-8993en_US
dc.identifier.urihttps://hdl.handle.net/10356/152422-
dc.description.abstractThis article presents a control strategy for a dual-input neutral-point-clamped (NPC) inverter-based grid-connected photovoltaic (PV) system to asymmetrically control the PV arrays without incorporating any additional external circuit. This is achieved by employing an analytically developed linearization block, which helps in generating the required neutral point (NP) current to counter for the difference in the PV currents. The analysis also provides the maximum NP current compensation limits of the NPC inverter. If the required NP current reference is less than the maximum limit, both PV arrays operate at their maximum power points. However, if the required current exceeds the limit, one of the PV arrays operates at its maximum power point, while the output power of the other PV array is reduced to satisfy the NP current limit. Experimental tests are conducted on a laboratory prototype to validate the performance of the proposed control strategy. currents. The analysis also provides the maximum NP current compensation limits of the NPC inverter. If the required NP current reference is less than the maximum limit, both PV arrays operate at their maximum power points. However, if the required current exceeds the limit, one of the PV arrays operates at its maximum power point (MPP) while the output power of the other PV array is reduced to satisfy the NP current limit. Experimental tests are conducted on a laboratory prototype to validate the performance of the proposed control strategy.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.language.isoenen_US
dc.relation2019-T1-001-168 (RG 80/19)en_US
dc.relation.ispartofIEEE Transactions on Power Electronicsen_US
dc.rights© 2021 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: https://doi.org/10.1109/TPEL.2021.3063745.en_US
dc.subjectEngineering::Electrical and electronic engineering::Power electronicsen_US
dc.titleA control strategy for dual-input neutral-point-clamped inverter-based grid-connected photovoltaic systemen_US
dc.typeJournal Articleen
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en_US
dc.identifier.doi10.1109/TPEL.2021.3063745-
dc.description.versionAccepted versionen_US
dc.identifier.issue9en_US
dc.identifier.volume36en_US
dc.identifier.spage9743en_US
dc.identifier.epage9757en_US
dc.subject.keywordsCarrier-based Pulsewidth Modulaen_US
dc.subject.keywordsFeedforward Compensationen_US
dc.subject.keywordsNeutral-point-clamped Converteren_US
dc.description.acknowledgementThis work was supported by the Singapore Ministry of Education Academic Research Fund Tier 1 under Grant No: 2019-T1-001-168 (RG 80/19).en_US
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