Redundancy design for modular multilevel converter based STATCOMs

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dc.creatorJoão Victor Matos Farias
dc.creatorAllan F. Cupertino
dc.creatorVictor de Nazareth Ferreira
dc.creatorHeverton A. Pereira
dc.creatorSeleme Isaac Seleme Jr
dc.date.accessioned2025-05-15T13:04:02Z
dc.date.accessioned2025-09-08T23:36:52Z
dc.date.available2025-05-15T13:04:02Z
dc.date.issued2019
dc.identifier.doihttps://doi.org/10.1016/j.microrel.2019.113471
dc.identifier.issn00262714
dc.identifier.urihttps://hdl.handle.net/1843/82285
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofMicroelectronics Reliability
dc.rightsAcesso Restrito
dc.subjectConversores eletrônicos
dc.subject.otherModular Multilevel Converters, Reliability, Redundancy Design, Wear-out Failures, Random Failures
dc.subject.otherModular multilevel converter (MMC) is considered the next generation of converter for medium and high voltage applications. Among the MMC topologies, the single-delta bridge cell (SDBC) is generally used in STATCOM and energy storage applications. Moreover, the double-star chopper cells (DSCC) is widely employed in STATCOM, HVDC and in some applications from electrical drives systems. The MMC topologies consist of the cascaded connection of low voltage bridges, aiming to achieve a high voltage capability. Nevertheless, in some applications, it is necessary to associate a large number of cells, compromising the system-level reliability.
dc.titleRedundancy design for modular multilevel converter based STATCOMs
dc.typeArtigo de periódico
local.citation.spage113471
local.citation.volume100-101
local.description.resumoMany strategies have been proposed to improve the reliability of Modular Multilevel Converters (MMCs). However, the redundancy factor selection to support a converter fault tolerance operation is an important field to be explored. This work proposes a combined reliability model for the correct selection of the additional number of cells to achieve a target lifetime. This model combines both wear-out and random failures data and compute the required redundancy factor for a given reliability target. The proposed model is evaluated through a reliability-oriented case study, whereas four device voltage classes in a 13.8 kV/17 MVA MMC STATCOM are considered.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0026271419304184

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