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Unbalanced Space Vector Modulation with Fundamental Phase Shift Compensation for Faulty Multilevel Converters.

Authors :
Aleenejad, Mohsen
Mahmoudi, Hamid
Ahmadi, Reza
Source :
IEEE Transactions on Power Electronics. Oct2016, Vol. 31 Issue 10, p7224-7233. 10p.
Publication Year :
2016

Abstract

This paper proposes a new fault-tolerant strategy for the purpose of revamping the performance of three-phase multilevel (ML) converters with faulty switches. The proposed fault-tolerant strategy is based on an adaptation of the modified space vector modulation (SVM) technique to the fundamental phase-shift compensation method. The proposed fault-tolerant strategy generates balanced line-to-line voltages with increased voltage levels in the faulty condition. In this paper, first a brief background about cascaded H-bridge (CHB) ML converters and SVM technique is provided. Then the proposed fault-tolerant strategy and the modified SVM technique are presented. Finally, several experimental results are provided to validate operation of the proposed strategy. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08858993
Volume :
31
Issue :
10
Database :
Academic Search Index
Journal :
IEEE Transactions on Power Electronics
Publication Type :
Academic Journal
Accession number :
118691773
Full Text :
https://doi.org/10.1109/TPEL.2015.2509446