Título Three-Phase Isolated Multimodular Converter in Renewable Energy Distribution Systems
Autores Verdugo C. , Candela J.I. , Blaabjerg F. , RODRÍGUEZ CORTÉS, PEDRO
Publicación externa No
Medio IEEE J. Emerg. Sel. Top. Power Electron.
Alcance Article
Naturaleza Científica
Cuartil JCR 1
Cuartil SJR 1
Impacto JCR 4.47200
Impacto SJR 1.57000
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078019638&doi=10.1109%2fJESTPE.2019.2895465&partnerID=40&md5=2de790c2f2ef903ae88ec8169e75bb15
Fecha de publicacion 01/01/2020
ISI 000512547100070
Scopus Id 2-s2.0-85078019638
DOI 10.1109/JESTPE.2019.2895465
Abstract Multilevel 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 (PV) plants, these topologies could provide multiple benefits since they are able to connect string of PV 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 multimodular 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 PV 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 the simulation and experimental results. © 2013 IEEE.
Palabras clave HVDC power transmission; Photovoltaic cells; Renewable energy resources; Topology; High voltage applications; High voltage systems; Medium voltage levels; Modular multi-level converters; Multi-modular
Miembros de la Universidad Loyola

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