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TitleA novel multilevel converter for on-grid interface of renewable energy sources in smart grids
Author(s)Monteiro, Vítor Duarte Fernandes
Sousa, Tiago J.C.
Sepulveda, M. J.
Couto, Carlos
Martins, Júlio S.
Afonso, João L.
KeywordsGrid-Tied Converter
Multilevel Converter
Power Quality
Renewable Energy Sources
Smart Grids
Issue date2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
CitationVítor Monteiro, Tiago J. C. Sousa, M. J. Sepúlveda, Carlos Couto, Júlio S. Martins, João L. Afonso “A Novel Multilevel Converter for On-Grid Interface of Renewable Energy Sources in Smart Grids”IEEE SEST International Conference on Smart Energy Systems and Technologies, Porto, Portugal, Sept. 2019.
Abstract(s)The on-grid interface of renewable energy sources involves a dc-ac converter for controlling the injected current. In this perspective, a novel topology of grid-tied converter is proposed, assuming as main feature the produced multilevel voltages (five-levels). The proposed grid-tied converter is intended for on-grid interfaces, which is controlled for guaranteeing sinusoidal currents for all grid voltage conditions. The dc-side can be linked directly to a dc-to-dc intermediary converter, responsible for interfacing renewable energy sources, as solar photovoltaic or wind power systems. Throughout the paper, a complete examination of the operation principle and the adopted control theory, including current control, as well as hardware project, are comprehensively presented. An accurate computational simulation validation is presented, comprising realistic operating conditions in terms of grid voltage disturbances and operating power. The obtained results prove the advantages of the proposed grid-tied multilevel converter, and establish a comparison with the classical solutions.
TypeConference paper
Publisher version
AccessOpen access
Appears in Collections:CAlg - Artigos em livros de atas/Papers in proceedings

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