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AuthorSpier, Daniel Westerman
AuthorPrieto-Araujo, Eduardo
AuthorLópez-Mestre, Joaquim
AuthorMehrjerdi, Hasan
AuthorGomis-Bellmunt, Oriol
Available date2022-11-14T10:49:11Z
Publication Date2022
Publication NameIEEE Transactions on Power Delivery
ResourceScopus
Resource2-s2.0-85139829328
URIhttp://dx.doi.org/10.1109/TPWRD.2022.3213250
URIhttp://hdl.handle.net/10576/36348
AbstractThis paper proposes a comprehensive analysis of the Modular Multilevel Converter (MMC) focusing on the different arm applied voltage components, that this paper will refer as degrees of freedom (DOFs), which must be considered in order to perform the internal energy balancing of the converter. The analysis relies on the commonly used differential and additive reference frames. By means of a steady-state analysis, the different voltages components applied and currents components flowing through the converter are studied and an in-depth discussion of the roles of each DOF in the converter is presented. Furthermore, the mathematical expressions of the power exchanged between the AC/DC networks and within the converter, between the arms (vertical) and among phase-legs (horizontal), are derived considering all the DOFs of the MMC, revealing potential interactions among the differential and additive quantities. Finally, the theoretical analysis is validated through comparisons between the values obtained with the mathematical expressions and the simulation results assuming different case scenarios. IEEE
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectAdditives
degrees of freedom (DOF)
Europe
internal energy balancing
Mathematical models
Modular multilevel converter (MMC)
Multilevel converters
Simulation
Steady-state
Voltage
TitleOn the Roles and Interactions of the MMC Internal Energy Balancing Degrees of Freedom for Three-Wire Three-Phase Connections
TypeArticle
Pagination12-Jan
dc.accessType Abstract Only


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