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Dynamic Analysis of Modular Multilevel Converters
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.ORCID iD: 0000-0002-8565-4753
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
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2013 (English)In: IEEE transactions on industrial electronics (1982. Print), ISSN 0278-0046, E-ISSN 1557-9948, Vol. 60, no 7, 2526-2537 p.Article in journal (Refereed) Published
Abstract [en]

Theory for the dynamics of modular multilevel converters is developed in this paper. It is shown that the sum capacitor voltage in each arm often can be considered instead of the individual capacitor voltages, thereby significantly reducing the complexity of the system model. Two selections of the so-called insertion indices, which both compensate for the sum-capacitor-voltage ripples, are considered. The dynamic systems which respectively result from these selections are analyzed. An effective dc-bus model, which takes into account the contribution from the submodule capacitors, is obtained. Finally, explicit formulas for the stationary sum-capacitor-voltage ripples are derived.

Place, publisher, year, edition, pages
2013. Vol. 60, no 7, 2526-2537 p.
Keyword [en]
Control, dynamic systems, modular multilevel converters (M2Cs), voltage-source converters (VSCs)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-121103DOI: 10.1109/TIE.2012.2194974ISI: 000316208000001Scopus ID: 2-s2.0-84874851348OAI: oai:DiVA.org:kth-121103DiVA: diva2:617078
Note

QC 20130422

Available from: 2013-04-22 Created: 2013-04-19 Last updated: 2017-12-06Bibliographically approved

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Norrga, StaffanNee, Hans-Peter

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Harnefors, LennartAntonopoulos, AntoniosNorrga, StaffanÄngquist, LennartNee, Hans-Peter
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Electrical Energy Conversion
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IEEE transactions on industrial electronics (1982. Print)
Electrical Engineering, Electronic Engineering, Information Engineering

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