Cascaded Multilevel Converters: Optimal Asymmetries and Floating Capacitor Control

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dc.contributor.authorPereda Torres, Javier Eduardo
dc.contributor.authorDixon, Juan
dc.date.accessioned2022-05-18T14:04:49Z
dc.date.available2022-05-18T14:04:49Z
dc.date.issued2013
dc.description.abstractCascaded multilevel (CM) converter is a series connection of several inverters that together generate multiple voltage levels with controllable frequency, phase, and amplitude. Its main advantages are high power, reliability, and power quality. However, it has considerable drawbacks such as high number of components, many isolated power sources, decreasing voltage quality with the modulation index, and regeneration in some series inverters at specific modulation indexes, even when the machine is motoring. The authors propose to improve any CM topology through two solutions: use optimal voltage asymmetries (ratios), higher than conventional ones; replace the voltage sources by floating capacitors balanced with a new control (PI controller) and/or a high-frequency link. This paper presents theoretical analysis and experimental results of CM converters with increased voltage-quality (levels), some of them keeping this high quality and avoiding regeneration in motor mode at any motor operation point, using the proposed voltage asymmetries and simplifying or eliminating some voltage sources. Experimental results show a reduction of components, an improved voltage quality, and a satisfactory behavior in stationary and dynamic operation.
dc.fuente.origenIEEE
dc.identifier.doi10.1109/TIE.2012.2219834
dc.identifier.eissn1557-9948
dc.identifier.issn1557-9948
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6339054
dc.identifier.urihttps://doi.org/10.1109/TIE.2012.2219834
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/64109
dc.information.autorucEscuela de ingeniería ; Pereda Torres, Javier Eduardo ; S/I ; 131481
dc.information.autorucEscuela de ingeniería ; Dixon, Juan ; S/I ; 99537
dc.issue.numero11
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final4793
dc.pagina.inicio4784
dc.publisherIEEE
dc.revistaIEEE Transactions on Industrial Electronics
dc.rightsacceso restringido
dc.subjectInverters
dc.subjectCapacitors
dc.subjectVectors
dc.subjectModulation
dc.subjectTopology
dc.subjectVoltage control
dc.subjectWindings
dc.titleCascaded Multilevel Converters: Optimal Asymmetries and Floating Capacitor Controles_ES
dc.typeartículo
dc.volumen60
sipa.codpersvinculados131481
sipa.codpersvinculados99537
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