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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.date.accessioned2016-11-16T11:03:01Z
dc.date.available2016-11-16T11:03:01Z
dc.date.issued2017-01
dc.identifier.citationA. M. Y. M. Ghias et al., "Elimination of Low-Frequency Ripples and Regulation of Neutral-Point Voltage in Stacked Multicell Converters," in IEEE Transactions on Power Electronics, vol. 32, no. 1, pp. 164-175, Jan. 2017.en
dc.identifier.issn0885-8993en
dc.identifier.urihttp://hdl.handle.net/11556/335
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 lowfrequency 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.language.isoengen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USAen
dc.titleElimination of Low-Frequency Ripples and Regulation of Neutral-Point Voltage in Stacked Multicell Convertersen
dc.typearticleen
dc.identifier.doi10.1109/TPEL.2016.2536646en
dc.isiYesen
dc.rights.accessRightsembargoedAccessen
dc.subject.keywordsCapacitorsen
dc.subject.keywordsSwitchesen
dc.subject.keywordsCost functionen
dc.subject.keywordsVoltage controlen
dc.subject.keywordsPhase modulationen
dc.subject.keywordsCapacitanceen
dc.identifier.essn1941-0107en
dc.issue.number1en
dc.journal.titleIEEE Transactions on Power Electronicsen
dc.page.final175en
dc.page.initial164en
dc.volume.number32en


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