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Efficient Modeling of Modular Multilevel Converters in HVDC-Grids Under Fault Conditions
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.ORCID iD: 0000-0002-1755-1365
2014 (English)In: 2014 IEEE PES General Meeting | Conference & Exposition, IEEE Computer Society, 2014, 6939166- p., 6939166Conference paper, Published paper (Refereed)
Abstract [en]

High-voltage direct current (HVDC) grids using modular multilevel converters (M2Cs) have strongly been considered for the integration of distant renewable energy sources and also as a backbone to the existing ac-grids. The dynamic performance of the M2C is of particular interest in these grids. For electromagnetic transient (EMT) programs, modeling of HVDC-grids using detailed M2C models is unrealistic, as it requires extremely high computational effort and simulation time. In this paper an HVDC-grid test system is developed using a continuous simulation model of the M2C. The model is also capable of describing the blocking events of the M2C. Using time-domain simulations in PSCAD/EMTDC, the dynamic performance of the M2C in HVDC-grids under fault conditions is investigated. Simulation results reveal that the continuous M2C model can efficiently be used to study the dynamic performance of the M2C in HVDC-grids with high computational speed, under different fault conditions.

Place, publisher, year, edition, pages
IEEE Computer Society, 2014. 6939166- p., 6939166
Series
IEEE Power and Energy Society General Meeting PESGM, ISSN 1944-9925
Keyword [en]
Converters, HVDC transmission, modeling, modular multilevel converter (M2C), power conversion
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-164495DOI: 10.1109/PESGM.2014.6939166ISI: 000349551502019Scopus ID: 2-s2.0-84930986993ISBN: 978-1-4799-6415-4 (print)OAI: oai:DiVA.org:kth-164495DiVA: diva2:806265
Conference
2014 IEEE Power and Energy Society General Meeting, National Harbor, United States, 27 July 2014 through 31 July 2014
Funder
StandUp
Note

QC 20150420

Available from: 2015-04-20 Created: 2015-04-17 Last updated: 2015-07-01Bibliographically approved

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Norrga, StaffanNee, Hans-Peter

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