Survey on fault operation on multilevel inverters

Pablo Lezana, Josep Pou, Thierry A. Meynard, Jose Rodriguez, Salvador Ceballos, Frédéric Richardeau

Research output: Contribution to journalReview articlepeer-review

347 Citations (Scopus)


This paper is related to faults that can appear in multilevel (ML) inverters, which have a high number of components. This is a subject of increasing importance in high-power inverters. First, methods to identify a fault are classified and briefly described for each topology. In addition, a number of strategies and hardware modifications that allow for operation in faulty conditions are also presented. As a result of the analyzed works, it can be concluded that ML inverters can significantly increase their availability and are able to operate even with some faulty components.

Original languageEnglish
Article number5256213
Pages (from-to)2207-2218
Number of pages12
JournalIEEE Transactions on Industrial Electronics
Issue number7
Publication statusPublished - Jul 2010


  • Fault diagnosis
  • Fault tolerance
  • Multilevel (ML) converters

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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