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DC-Link Stability Analysis and Controller Design for the Stacked Polyphase Bridges Converter
KTH, School of Electrical Engineering (EES), Electric power and energy systems.ORCID iD: 0000-0002-0333-9128
KTH, School of Electrical Engineering (EES), Electric power and energy systems.ORCID iD: 0000-0002-6283-7661
KTH, School of Electrical Engineering (EES), Electric power and energy systems.
KTH, School of Electrical Engineering (EES), Electric power and energy systems.
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(English)In: IEEE Transactions on Power ElectronicsArticle in journal (Refereed) Accepted
Abstract [en]

The stacked polyphase bridges (SPB) converter consists of several submodules that all are connected in series to a voltage source. The total dc-link voltage should split in a balanced way among the submodules. This does not always occur inherently. This paper presents an analysis of the capacitor voltage stability for the SPB converter. From the analysis, criteria for stability are derived and three alternatives of a suitable balancing controller are designed. The proposed controller alternatives and their associated stability properties are verified on an experimental setup and by simulation.

Place, publisher, year, edition, pages
IEEE.
Keyword [en]
Balancing control, dc-link stability, integrated electric drive, modular converter.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-185042OAI: oai:DiVA.org:kth-185042DiVA: diva2:918153
Note

QS 2016

Available from: 2016-04-10 Created: 2016-04-10 Last updated: 2016-04-29Bibliographically approved

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Nikouie Harnefors, MojganWallmark, OskarJin, LebingHarnefors, LennartNee, Hans-Peter
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