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dc.contributor.authorDadjo Tavakoli, Saman
dc.contributor.authorFekriasl, Sajjad
dc.contributor.authorPrieto Araujo, Eduardo
dc.contributor.authorBeerten, Jef
dc.contributor.authorGomis Bellmunt, Oriol
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Elèctrica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.date.accessioned2022-03-29T10:56:47Z
dc.date.available2022-03-29T10:56:47Z
dc.date.issued2021-04-06
dc.identifier.citationDadjo, S. [et al.]. Optimal H-infinity control design for MMC-based HVDC links. "IEEE transactions on power delivery", 6 Abril 2021, vol. 37, núm. 2, p. 786-797.
dc.identifier.issn0885-8977
dc.identifier.urihttp://hdl.handle.net/2117/364955
dc.description© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
dc.description.abstractThe modular multilevel converter (MMC) has emerged as the preferred choice for voltage source converter (VSC)-based high voltage direct current (HVDC) systems due to its low losses, low harmonic distortion, modularity, and redundancy. These advantages come at the expense of a complex control system with the strong coupling among its control variables, which complicates the design procedure of both its individual control loops and the DC link controllers. In fact, the performance improvement of a control loop could lead to degraded performance of other loops. Hence, to deal with such a complex dynamic system, this article suggests adopting multivariable H optimal control techniques in order to ensure stability and optimized performance of a VSC-HVDC link. First, a full-order, centralized multi-input-multi-output (MIMO) controller is derived based on H optimization and used as a benchmark for the system performance level. Then, a fixed-structure, decentralized MIMO controller is synthesized to make a compromise between the optimal performance and feasibility of practical implementation. Finally, simulations are conducted to evaluate and compare the performance and robustness degradation due to the migration from a high-order, centralized controller towards a low-order, decentralized controller.
dc.format.extent12 p.
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.rights© 2021. IEEE
dc.subjectÀrees temàtiques de la UPC::Enginyeria elèctrica
dc.subject.lcshElectric current converters
dc.subject.otherH-infinity optimization
dc.subject.otherHVDC
dc.subject.otherMMC
dc.subject.otherVSC
dc.subject.otherRobust multivariable control
dc.subject.otherRobustness
dc.titleOptimal H-infinity control design for MMC-based HVDC links
dc.typeArticle
dc.subject.lemacConvertidors de corrent elèctric
dc.contributor.groupUniversitat Politècnica de Catalunya. CITCEA - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments
dc.identifier.doi10.1109/TPWRD.2021.3071211
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://ieeexplore.ieee.org/abstract/document/9397287
dc.rights.accessOpen Access
local.identifier.drac32072542
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095429-B-I00/ES/CONTROL DE UNA RED DE MULTIPLES REDES AC Y DC INTERCONECTADAS CON CONVERTIDORES DE POTENCIA/
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/765585/EU/Innovative tools for offshore wind and DC grids/InnoDC
local.citation.authorDadjo, S.; Fekriasl, S.; Prieto-Araujo, Eduardo; Beerten, J.; Gomis-Bellmunt, O.
local.citation.publicationNameIEEE transactions on power delivery
local.citation.volume37
local.citation.number2
local.citation.startingPage786
local.citation.endingPage797


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