Modular control with carrier auto-interleaving and capacitor-voltage balancing for MMCs

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dc.creatorSeleme Isaac Seleme Júnior
dc.creatorLuc-André Gregoire
dc.creatorMarc Cousineau
dc.creatorPhilippe Ladoux
dc.date.accessioned2025-05-22T12:37:37Z
dc.date.accessioned2025-09-08T23:17:29Z
dc.date.available2025-05-22T12:37:37Z
dc.date.issued2019
dc.identifier.doihttps://doi.org/10.1049/iet-pel.2018.5096
dc.identifier.issn1755-4535
dc.identifier.urihttps://hdl.handle.net/1843/82440
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofIET Power electronics
dc.rightsAcesso Restrito
dc.subjectConversores eletrônicos
dc.titleModular control with carrier auto-interleaving and capacitor-voltage balancing for MMCs
dc.typeArtigo de periódico
local.citation.epage828
local.citation.issue4
local.citation.spage817
local.citation.volume12
local.description.resumoIn this study, a new control method dedicated to modular multilevel converters (MMCs) is proposed. The approach is based on local communication between the individual controls of each submodule (SM). The local values of the capacitor voltages and the carrier-phase angles are shared between immediate neighbours achieving balancing of their capacitor voltages, and an automatic interleaving of the pulse-width modulation (PWM) signals. Using an inter-cell communication strategy, the number of required data exchanges with a centralised controller is greatly reduced. This method works for any number of SMs present in the converter and provides an integrated dynamic reconfiguration capability to enable or disable SMs during operation, without any additional consideration for the control-algorithm's implementation. Such a capability is not offered by classical MMC control methods using either PWM or nearest-level control strategies. Higher stability, robustness and larger bandwidth of the proposed method are first demonstrated through real-time simulation. The auto-interleaving of the PWM carriers and the capacitor-voltage balancing, provide fast responses and adequate accuracy. Experimental results are provided using a 600 V/3 kW/18 cells single-phase MMC demonstrator confirming the simulation results, and the advantages of this SM control strategy.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://ietresearch.onlinelibrary.wiley.com/doi/abs/10.1049/iet-pel.2018.5096

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