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Fault tolerant operation of power converter with cascaded cells
ABB Corporate Research, Forskargränd 10, Västerås, Sweden.ORCID iD: 0000-0002-8565-4753
2011 (English)In: Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011, 2011Conference paper, Published paper (Refereed)
Abstract [en]

Multilevel converters based on cascaded cells are well suited for high power applications, due to good control performance, extensive modularity and excellent harmonic distortion. A vital requirement in high power converters is being fault-tolerant, so that a single fault in a cell does not lead to the trip of the entire converter. This paper presents a strategy for fault-tolerance on cell level with Integrated Gate Commutated Thyristors (IGCT). The concept is based on initiating a surge in a phase leg in a failing cell, limited by a di/dt reactor leading to a short circuit failure mode of the IGCT thereby excluding the cell from the chain.

Place, publisher, year, edition, pages
2011.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-63828Scopus ID: 2-s2.0-80053474201ISBN: 978-161284167-0 (print)OAI: oai:DiVA.org:kth-63828DiVA: diva2:482772
Conference
2011 14th European Conference on Power Electronics and Applications, EPE 2011. Birmingham. 30 August 2011 - 1 September 2011
Funder
StandUp
Note

QC 20120125

Available from: 2012-01-24 Created: 2012-01-24 Last updated: 2016-05-04Bibliographically approved

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Norrga, Staffan

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