Elimination of Low-Frequency Ripples and Regulation of Neutral-Point Voltage in Stacked Multicell Converters

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dc.contributor.authorGhias, Amer M.Y.M.
dc.contributor.authorPou, Josep
dc.contributor.authorAcuna, Pablo
dc.contributor.authorCeballos, Salvador
dc.contributor.authorHeidari, Alireza
dc.contributor.authorAgelidis, Vassilios G.
dc.contributor.authorMerabet, Adel
dc.contributor.institutionPOWER ELECTRONICS AND SYSTEM EQUIPMENT
dc.date.issued2017-01
dc.descriptionPublisher Copyright: © 2016 IEEE.
dc.description.abstractThis paper introduces a modulation method for the stacked multicell converters (SMCs). The proposed method is implemented using phase-disposition pulse width modulation and is capable of balancing and regulating the voltages of all the capacitors in the topology, i.e., the flying capacitors and the dc-link capacitors. The proposed method is also able to eliminate the low-frequency voltage ripples that may appear in the neutral point (NP) of SMCs. In SMCs with two stacks, the NP voltage level can be generated by direct connection of the output to the dc-link NP, but also using two extra states available. This redundancy is used to regulate the NP voltage. Furthermore, since the proposed method can eliminate the low-frequency voltage ripples in the capacitors, the capacitances of all the capacitors of the SMCs can be reduced, while maintaining high quality of the output voltages and currents. This enables the use of film capacitors. Simulation and experimental results are presented from a three-phase five-level 2× 2 SMC to verify the effectiveness of the proposed method.en
dc.description.statusPeer reviewed
dc.format.extent12
dc.identifier.citationGhias , A M Y M , Pou , J , Acuna , P , Ceballos , S , Heidari , A , Agelidis , V G & Merabet , A 2017 , ' Elimination of Low-Frequency Ripples and Regulation of Neutral-Point Voltage in Stacked Multicell Converters ' , IEEE Transactions on Power Electronics , vol. 32 , no. 1 , 7422812 , pp. 164-175 . https://doi.org/10.1109/TPEL.2016.2536646
dc.identifier.doi10.1109/TPEL.2016.2536646
dc.identifier.issn0885-8993
dc.identifier.otherresearchoutputwizard: 11556/335
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84988703610&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofIEEE Transactions on Power Electronics
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsConverters
dc.subject.keywordsHVDC converters
dc.subject.keywordsinverters
dc.subject.keywordspower electronics
dc.subject.keywordspulse width modulated converters
dc.subject.keywordspulse width modulated inverters
dc.subject.keywordsvoltage control
dc.subject.keywordsCapacitors
dc.subject.keywordsSwitches
dc.subject.keywordsCost function
dc.subject.keywordsPhase modulation
dc.subject.keywordsCapacitance
dc.subject.keywordsCapacitors
dc.subject.keywordsSwitches
dc.subject.keywordsCost function
dc.subject.keywordsVoltage control
dc.subject.keywordsPhase modulation
dc.subject.keywordsCapacitance
dc.subject.keywordsElectrical and Electronic Engineering
dc.subject.keywordsSDG 7 - Affordable and Clean Energy
dc.titleElimination of Low-Frequency Ripples and Regulation of Neutral-Point Voltage in Stacked Multicell Convertersen
dc.typejournal article
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