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Post-fault operation of fault-tolerant inverters for PMSM drives
Chalmers Univ Technol, Dept Energy & Environm.ORCID iD: 0000-0002-6283-7661
Dep. of Energy and Environment, Chalmers University of Technology.
Dep. of Energy and Environment, Chalmers University of Technology.
2005 (English)In: 2005 European Conference on Power Electronics and Applications, 2005, Article number 1665886- p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper considerspost-faultoperationof permanent-magnet synchronous motordrivesequipped with afault-tolerantinverter. Inpost-faultmode, the faulted phase is isolated and the neutral point is connected either to an additionalinverterleg or to the midpoint of the dc bus. Different methods of controlling the neutral point voltage are presented and compared. Furthermore,operationwithout a position sensor (i.e., sensorless control) is considered and a modification to an estimator previously reported in the literature is proposed in order to take into account the effect of the asymmetry introduced due to the isolation of the faulted phase inpost-faultmode. Simulations and experimental results are provided to support the theory and demonstrate the practical impact of the modifications proposed.

Place, publisher, year, edition, pages
2005. Article number 1665886- p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-61529ISBN: 978-907581508-5 (print)OAI: oai:DiVA.org:kth-61529DiVA: diva2:479312
Conference
European Conference on Power Electronics and Applications (EPE’05)
Note
QC 20120119Available from: 2012-01-17 Created: 2012-01-17 Last updated: 2012-01-19Bibliographically approved

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Wallmark, Oskar

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