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Fault-tolerant design for a three-level neutral-point-clamped multilevel inverter topology

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4 Author(s)
Cordeiro, A. ; ISEL-Inst. Super. de Eng. de Lisboa (ADESPA), Lisbon, Portugal ; Silva, J.F. ; Pinto, S.F. ; Santana, J.E.

This paper presents a modified topology of the neutral-point-clamped inverter suitable to increase the converter reliability in safety-critical applications. With the proposed scheme, the energy processing capacity can be maintained even for multiple failure modes. Its fault-tolerant ability results from redundancy of power devices and from modifications in the control strategy. The theoretical validity of the proposed solution is confirmed by simulation results.

Published in:

EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE

Date of Conference:

27-29 April 2011