An Asymmetrical Step-Up Multilevel Inverter Based on Switched-Capacitor Network

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorTaghvaie, Amir
dc.contributor.authorAlijani, Ahmad
dc.contributor.authorAdabi, M. Ebrahim
dc.contributor.authorRezanejad, Mohammad
dc.contributor.authorAdabi, Jafar
dc.contributor.authorRouzbehi, Kumars
dc.contributor.authorPouresmaeil, Edris
dc.contributor.departmentDeakin University
dc.contributor.departmentBabol Noshirvani University of Technology
dc.contributor.departmentDelft University of Technology
dc.contributor.departmentMazandaran University
dc.contributor.departmentUniversity of Seville
dc.contributor.departmentRenewable Energies for Power Systems
dc.contributor.departmentDepartment of Electrical Engineering and Automationen
dc.date.accessioned2019-08-15T08:28:55Z
dc.date.available2019-08-15T08:28:55Z
dc.date.issued2019-06-02
dc.description.abstractThis paper presents a transformerless step-up multilevel inverter based on a switched-capacitor structure. One of the main contributions of the proposed topology is replacing the separated DC voltage source with capacitors which are charged at predetermined time intervals. Therefore, a high-level staircase voltage waveform can be achieved by discharging some of these capacitors on the load. The other contribution of the proposed structure is to eliminate the magnetic elements which traditionally boost the input DC voltage. In addition, asymmetrical or unequal amounts of capacitor voltages create more voltage levels, which enable voltage level increments without increasing the number of semiconductor devices. This paper introduces a self-balanced boost Switched-Capacitors Multilevel Inverter (SCMLI) which is able to create a nearly sinusoidal voltage waveform with a maximum voltage of up to 45 times that of the input voltage DC source. Higher level output voltage levels are also achievable by extending the circuit topology. After determination of the switching angles and selecting the proper switching states for each level, an offline NLC method is used for modulation, which eases the control implementation. Analysis, simulation and experiments are carried out for a 91-level inverter (45 levels for positive and negative voltages and one for zero voltage) are presented.en
dc.description.versionPeer revieweden
dc.format.extent18
dc.format.extent3453-3470
dc.format.mimetypeapplication/pdf
dc.identifier.citationTaghvaie , A , Alijani , A , Adabi , M E , Rezanejad , M , Adabi , J , Rouzbehi , K & Pouresmaeil , E 2019 , ' An Asymmetrical Step-Up Multilevel Inverter Based on Switched-Capacitor Network ' , Sustainability , vol. 11 , no. 12 , 3453 , pp. 3453-3470 . https://doi.org/10.3390/su11123453en
dc.identifier.doi10.3390/su11123453
dc.identifier.issn2071-1050
dc.identifier.otherPURE UUID: f71c3eae-e981-4eca-8672-dafda7152288
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/f71c3eae-e981-4eca-8672-dafda7152288
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85069873882&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/35799726/ELEC_Taghvaie_asymmetrical_step_up_sustainability.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/39781
dc.identifier.urnURN:NBN:fi:aalto-201908154826
dc.language.isoenen
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.relation.ispartofseriesSustainabilityen
dc.relation.ispartofseriesVolume 11, issue 12en
dc.rightsopenAccessen
dc.subject.keywordConverter
dc.subject.keywordNumber
dc.subject.keywordTopology
dc.subject.keywordMultilevel inverters
dc.subject.keywordSelf-balanced
dc.subject.keywordSingle source
dc.subject.keywordTransformerless
dc.titleAn Asymmetrical Step-Up Multilevel Inverter Based on Switched-Capacitor Networken
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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