Inherent redundancy of SDBC-MMCC based STATCOM in the overmodulation region

dc.creatorDayane Mendonça
dc.creatorAllan Cupertino
dc.creatorHeverto Augusto Pereira
dc.creatorSeleme Isaac Seleme Júnior
dc.creatorRemus Teodorescu
dc.date.accessioned2025-05-09T11:47:00Z
dc.date.accessioned2025-09-08T23:59:27Z
dc.date.available2025-05-09T11:47:00Z
dc.date.issued2019
dc.identifier.doi10.1109/COBEP/SPEC44138.2019.9065447
dc.identifier.urihttps://hdl.handle.net/1843/82165
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartof15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC)
dc.rightsAcesso Aberto
dc.subjectSistemas elétricos de potência
dc.subject.otherConforme observado, a maioria das propostas de estratégias de tolerância a falhas presentes na literatura focam na topologia CHB conectada em estrela. Recentemente, o limite entre as regiões linear e sobre modulação do conversor delta-CHB foram apresentados, assim como a operação do conversor sob falhas simétricas, isto é, o número de falhas em cada braço é sempre o mesmo. A Componente c.c. mínima requerida da soma das tensões dos capacitores Esta seção tem como objetivo calcular o limite entre a região linear e a de sobre modulação do conversor. Para o delta-CHB, a referência de tensão interna v*z é desprezada.
dc.titleInherent redundancy of SDBC-MMCC based STATCOM in the overmodulation region
dc.typeArtigo de evento
local.citation.issueCobep/spec
local.citation.spage1
local.description.resumoThe single delta bridge cell modular multilevel cascaded converter (SDBC-MMCC) has emerged as an interesting topology for Static Synchronous Compensator (STATCOM) applications. Since this converter is composed of tens/hundreds of components, reliability issues arise and redundant cells must be employed to fulfill the reliability requirements, increasing the initial cost of the STATCOM. In fact, there is a potential for fault tolerant operation when the overmodulation region is considered. This work aims to explore the inherent redundancy of SDBC-MMCC in the overmodulation region. Initially, the boundary conditions between linear and overmodulation region are analytically derived. Then, the inherent fault tolerance is evaluated based on 17 MVA/13.8 kV SDBC-MMCC based STATCOM case study with 24 cells per cluster. The results indicate that the converter is able to exchange rated power with the grid after 1 failure, with harmonic distortion within the limits suggested by the standards.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://ieeexplore.ieee.org/document/9065447

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