Survey on Fault Operation on Multilevel Inverters

• Published in: IEEE transactions on industrial electronics (1982) Vol. 57; no. 7; pp. 2207 - 2218
• Main Authors: Lezana, Pablo, Pou, Josep, Meynard, Thierry A., Rodriguez, Jose, Ceballos, Salvador, Richardeau, Frédéric
• Format: Journal Article Publication
• Language: English
• Published: New York IEEE 01.07.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Availability; Convertidors de corrent elèctric; Diagnostic errors; Electric current converters; Engineering Sciences; Enginyeria electrònica; Errors de diagnòstic; Fault detection; Fault diagnosis; Fault diagnosis fault tolerance multilevel (ML) converters; fault tolerance; Faults; Hardware; Industrial electronics; Inverters; Multilevel; multilevel (ML) converters; Production; Redundancy; Strategy; Topology; Voltage; Àrees temàtiques de la UPC; Fault diagnosis; Multilevel converters; Fault tolerance
• ISSN: 0278-0046; 1557-9948
• DOI: 10.1109/TIE.2009.2032194

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.