Stability Analysis of Modular Multilevel Converters With Open-Loop Control
2013 (English)In: 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013, IEEE , 2013, 6316-6321 p.Conference paper (Refereed)
Modular multilevel converters (M2Cs) require that the controller is designed so that the submodule capacitor voltages are equalized and stable, independent of the loading conditions. Provided that the individual capacitor voltage sharing is managed effectively, an open-loop strategy can been designed to ensure that the total amount of energy stored inside the converter always will be controlled. This strategy, using the steady-state solutions of the dynamic equations for controlling the total stored energy in each converter arm, has proven to be effective. The intention of this paper is to explain in a rigorous way the mechanism behind the suggested strategy, and to prove that, when this open-loop strategy is used, the system becomes globally asymptotically stable.
Place, publisher, year, edition, pages
IEEE , 2013. 6316-6321 p.
, IEEE Industrial Electronics Society, ISSN 1553-572X
Lyapunov methods, modular multilevel converters, open-loop control, prototype
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-143475DOI: 10.1109/IECON.2013.6700174ISI: 000331149506027ScopusID: 2-s2.0-84893598818ISBN: 978-1-4799-0224-8OAI: oai:DiVA.org:kth-143475DiVA: diva2:706963
39th Annual Conference of the IEEE Industrial-Electronics-Society (IECON), NOV 10-14, 2013, Vienna, Austria
QC 201403242014-03-242014-03-212014-03-24Bibliographically approved