Show simple item record

dc.contributor.authorVerdugo Retamal, Cristian Andrés
dc.contributor.authorCandela García, José Ignacio
dc.contributor.authorBlaabjerg, Frede
dc.contributor.authorRodríguez Cortés, Pedro
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.identifier.citationVerdugo, C. [et al.]. Three-phase isolated multi-modular converter in renewable energy distribution systems. "IEEE Journal of emerging and selected topics in power electronics", 25 Gener 2019, p. 1-12.
dc.description.abstractMultilevel converters are widely used in medium and high voltage applications. Their high performance, power quality, efficiency and smaller filters make them interesting for renewable energy distribution systems. In utility- scale photovoltaic plants, these topologies could provide multiple benefits since they are able to connect string of photovoltaic panels to independent modules. However, high floating voltages caused by high number of modules limit multilevel converters in medium and high voltage applications, since all of them are not suitable to provide isolation to each module. To offer a solution, this paper presents a novel multi-modular converter that provides multiple isolated modules connected in series through low frequency transformers to operate at medium voltage levels. This topology is able to achieve the power balancing between the connected modules and independently adjust the dc voltage of each module by means of controlling a circulating current which flows through the arms. Furthermore, the topology implemented in photovoltaic renewable energy systems and the control strategy required to regulate the circulating and the output current are presented. The main principle behind this concept and the performance of the converter are evaluated and validated through simulation and experimental results.
dc.format.extent12 p.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
dc.subjectÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Captadors solars
dc.subject.lcshElectric current converters
dc.subject.lcshPhotovoltaic power systems
dc.subject.othercascaded transformer multilevel inverter
dc.subject.otherhigh voltage systems
dc.subject.otherisolated multi-modular converter
dc.subject.othermodular multilevel converter
dc.titleThree-phase isolated multi-modular converter in renewable energy distribution systems
dc.subject.lemacConvertidors de corrent elèctric
dc.subject.lemacEnergia solar fotovoltaica
dc.contributor.groupUniversitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorVerdugo, C.; Candela, J.; Blaabjerg, F.; Rodríguez , P.
local.citation.publicationNameIEEE Journal of emerging and selected topics in power electronics

Files in this item


This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder