Simplified Small-Signal Model for Output Voltage Control of Asymmetric Cascaded H-Bridge Multilevel Inverter

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dc.contributor.authorCuri Busarello, Tiago Davi
dc.contributor.authorMortezaei, Ali
dc.contributor.authorMorales Paredes, Helmo Kelis [UNESP]
dc.contributor.authorAl-Durra, Ahmed
dc.contributor.authorPomilio, Jose Antenor
dc.contributor.authorSimoes, Marcelo Godoy
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.contributor.institutionColorado Sch Mines
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionKhalifa Univ Sci & Technol
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2018-11-29T05:57:15Z
dc.date.available2018-11-29T05:57:15Z
dc.date.issued2018-04-01
dc.description.abstractThis paper proposes a simplified small-signal model for output voltage control of a single-phase asymmetrical cascaded H-bridge multilevel inverter (ACHMI). The ACHMI is an n-series connected H-bridge converter, each one with a unique value at the dc link and usually scaled at {1:2:6:...} or {1:3:9:...}. By assuming that the small-signal variation component is equal in all n converter terminal ports, a simplified small-signal model is obtained. This assumption is carefully described and justified. To verify the veracity of the proposed model, two distinct control strategies are applied. One is a single-loop control scheme based on a modified proportional-integral (PI) controller. The other one is a double-loop control scheme based on a PI controller with feedforward action of the load current. Both controllers are tuned based on the dynamic behavior of the proposed model. Since the designed controllers based on the simplified model make the ACHMI output voltage to follow the reference without steady-state error, the proposed simplified model truly represents the inverter. Experimental results show the efficacy of the simplified model of the ACHMI through the two mentioned control strategies as well as the ACHMI installed in a microgrid.en
dc.description.affiliationUniv Fed Santa Catarina, Dept Engn, BR-89065300 Blumenau, Brazil
dc.description.affiliationColorado Sch Mines, Dept Elect Engn & Comp Sci, Golden, CO 80401 USA
dc.description.affiliationUniv Estadual Paulista, BR-18087180 Sorocaba, Brazil
dc.description.affiliationKhalifa Univ Sci & Technol, Dept Elect & Comp Engn, Abu Dhabi 127788, U Arab Emirates
dc.description.affiliationUniv Estadual Campinas, Sch Elect & Comp Engn, BR-13083852 Campinas, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, BR-18087180 Sorocaba, Brazil
dc.format.extent3509-3519
dc.identifierhttp://dx.doi.org/10.1109/TPEL.2017.2704919
dc.identifier.citationIeee Transactions On Power Electronics. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 33, n. 4, p. 3509-3519, 2018.
dc.identifier.doi10.1109/TPEL.2017.2704919
dc.identifier.fileWOS000422933400065.pdf
dc.identifier.issn0885-8993
dc.identifier.urihttp://hdl.handle.net/11449/165968
dc.identifier.wosWOS:000422933400065
dc.language.isoeng
dc.publisherIeee-inst Electrical Electronics Engineers Inc
dc.relation.ispartofIeee Transactions On Power Electronics
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectModeling
dc.subjectmultilevel inverter
dc.subjectsmall-signal
dc.subjectstair-case modulation
dc.subjectvoltage control
dc.titleSimplified Small-Signal Model for Output Voltage Control of Asymmetric Cascaded H-Bridge Multilevel Inverteren
dc.typeArtigo
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dcterms.rightsHolderIeee-inst Electrical Electronics Engineers Inc
unesp.author.orcid0000-0002-5406-3811[1]
unesp.author.orcid0000-0002-6629-5134[4]

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