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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/45228

Title
Predictive control algorithm robustness for achieving fault tolerance in multicell converters
Author/Creator
Aguilera, Ricardo P.;  Quevedo, Daniel E.;  Summers, Terrence J.;  Lezana, Pablo
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Electrical Engineering and Computer Science
Description
Multilevel Converters (MCs) have emerged as a promising alternative to traditional two level converters. MCs use an arrangement of several semiconductors to synthesize high quality output voltage levels. Unfortunately, as a consequence of using more switching elements, MCs are, in general, more likely to be affected by faults, than their two level counterparts. In this paper, we propose a finite set constrained predictive control method for MCs, which is aimed at achieving robustness to failures in the semiconductors. We focus on three-phase multicell flying capacitor converters and show that, by carefully designing switching sequences, faults can be isolated from measurements provided by a single voltage sensor per phase. When faults occur, the proposed controller reconfigures the converter to provide to the load voltages which are similar to those obtained under normal, i.e., fault free, operating conditions.
Relation
34th Annual Conference of the IEEE Industrial Electronics Society (IECON 2008). Proceedings of the 34th Annual Conference of the IEEE Industrial Electronics Society (IECON 2008) (Orlando, FL 10-13 November, 2008) p. 3302-3308
Relation
http://ieeexplore.ieee.org/search/srchabstract.jsp?tp=&arnumber=4758489
Date
2008
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Keyword(s)
Multilevel Converters (MCs);  capacitor converters;  semiconductors;  voltage
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/45228
Identifier
ISBN:9781424417667
Reviewed
Reviewed
Full Text
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"Predictive control algorithm robustness for achieving fault tolerance in multicell converters"
 
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