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An improved seven-level switched-capacitor-based neutral-point clamped inverter

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dc.citedby1
dc.contributor.authorKakar S.en_US
dc.contributor.authorArif M.S.B.en_US
dc.contributor.authorAyob S.M.en_US
dc.contributor.authorNordin N.B.M.en_US
dc.contributor.authorMekhilef S.en_US
dc.contributor.authorSeyedmahmoudian M.en_US
dc.contributor.authorStojcevski A.en_US
dc.contributor.authorid57211319577en_US
dc.contributor.authorid57197536034en_US
dc.contributor.authorid8400307300en_US
dc.contributor.authorid57850526700en_US
dc.contributor.authorid57928298500en_US
dc.contributor.authorid55575761400en_US
dc.contributor.authorid55884935900en_US
dc.date.accessioned2023-05-29T09:36:42Z
dc.date.available2023-05-29T09:36:42Z
dc.date.issued2022
dc.descriptionBalancing; Electric inverters; Solar panels; Solar power generation; Topology; Common mode voltage; High power; Multilevel inverter; Multilevels; Neutral-point clamped inverters; Neutralpoint-clamped (NPC); Renewable energies; Seven-level; Switched capacitor; Voltage boosting; Renewable energy resourcesen_US
dc.description.abstractMultilevel inverters (MLIs) have seen significant growth in a variety of medium- to high-power industrial applications and have become a mature and viable solution for renewable energy systems over the past decade. The major concerns of MLIs are the high component count and the buck-type feature of the ac output voltage when used for grid-connected renewable-energy-based sources such as solar photovoltaic (PV) panels. As another option, a switched-capacitor (SC)-based inverter possessing the feature of boost ability is a prime solution to meet the requirements of ac power applications. Integrating an SC network with a neutral-point clamped (NPC) structure makes leakage current alleviation viable for transformerless PV grid-connected systems. In this article, an improved SCMLI based on the NPC structure is proposed to reduce the number of active switches and the number of switches in the charging loop, significantly reducing the power loss. It can generate seven voltage levels with voltage boosting and self-balancing of capacitors within a single-stage power conversion. The working principle of the proposed topology, circuit description, and control technique are presented. Further, the proposed inverter was compared with other recent SC topologies to show its superiority. In the end, a laboratory prototype was developed and tested for the seven-level module under steady-state and dynamic conditions to validate the practical viability of the proposed configuration. The proposed inverter�s maximum efficiency was 97.5% at 1.2�kW rated power. Copyright � 2022 Kakar, Arif, Ayob, Nordin, Mekhilef, Seyedmahmoudian and Stojcevski.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo957825
dc.identifier.doi10.3389/fenrg.2022.957825
dc.identifier.scopus2-s2.0-85136180980
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85136180980&doi=10.3389%2ffenrg.2022.957825&partnerID=40&md5=ce18e9787a3ca3ead08bfdc27e659bad
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26788
dc.identifier.volume10
dc.publisherFrontiers Media S.A.en_US
dc.relation.ispartofAll Open Access, Gold
dc.sourceScopus
dc.sourcetitleFrontiers in Energy Research
dc.titleAn improved seven-level switched-capacitor-based neutral-point clamped inverteren_US
dc.typeArticleen_US
dspace.entity.typePublication
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