On the redundancy strategies of modular multilevel converters

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dc.creatorJoão Victor Matos Farias
dc.creatorAllan Fagner Cupertino
dc.creatorHeverton Augusto Pereira
dc.creatorSeleme Isaac Seleme Júnior
dc.creatorRemus Teodorescu
dc.date.accessioned2025-04-03T15:01:31Z
dc.date.accessioned2025-09-08T23:21:54Z
dc.date.available2025-04-03T15:01:31Z
dc.date.issued2017
dc.identifier.doi10.1109/TPWRD.2017.2713394
dc.identifier.issn0885-8977
dc.identifier.urihttps://hdl.handle.net/1843/81263
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofIEEE Transactions on power delivery
dc.rightsAcesso Restrito
dc.subjectConversores eletrônicos
dc.subjectEletrônica de potência
dc.subject.otherRedundancy , Automatic voltage control , Topology , Capacitors , Modular multilevel converters , Circuit faults
dc.subject.otherModular multilevel converter , redundancy strategies , positive and negative sequence injection , power losses
dc.subject.otherMultilevel Converter , Modular Multilevel Converter , Redundant Strategies , Renewable Energy , Power Loss , Negative Sequence , Static Synchronous Compensator , Capacitor Voltage Balancing , Control Strategy , Literary Works , Upper Arm , Nominal Value , Switching Frequency , Semiconductor Devices , Average Voltage , Positive Sequence , Lower Arm , Grid Voltage , Converter Operation , Proportional Control , Redundant Factors , Grid Current , Stationary Reference Frame , Resonant Controller , Phase-shift Modulation , Nominal Voltage , Point Of Common Coupling , Utilization Factor , Rated Voltage , Design Methodology
dc.titleOn the redundancy strategies of modular multilevel converters
dc.typeArtigo de periódico
local.citation.epage860
local.citation.spage851
local.citation.volume33
local.description.resumoThe modular multilevel converters (MMCs) have become an attractive topology in recent years. The MMC has been employed in several applications as HVdc, energy storage, renewable energy, electrical drives, and static synchronous compensators (STATCOMs). One advantage of MMC-based topologies is the inherited fault-tolerant operation associated with the high number of submodules (SMs). This work proposes the study of four redundancy strategies, which can be employed in modular multilevel converters: standard redundancy, redundancy strategy based on additional submodules (RAS), redundancy strategy based on additional submodules optimized (RASO), and redundancy strategy based on spare submodules. These strategies are compared through a case study of a 15 MVA MMC STATCOM. A new approach for the SM capacitance design is proposed, including the effect of the negative sequence current in the converter storage energy variations. The comparisons of the redundancy strategies are accomplished based on dynamic behavior, capacitor voltage balancing, control complexity, and power losses. Finally, the advantages and drawbacks of each redundancy strategy are presented.
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/7944644

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