Operation of a medium-voltage drive under faulty conditions 8.14

J. Rodríguez, J. Pontt, R. Musalem, P. Hammond

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

This paper presents a method for operating cascaded multilevel inverters when one or more power cells are damaged. The method is based on the use of additional switches in the power circuit to bypass the faulty cell. To control the cells, the angle of phase shifting in the carrier signals is modified according to the number of operating cells, to minimize the load voltage distortion, when the inverter operates in failure mode. The reference signals of the PWM modulators are also modified to increase the output voltage. Simulation and experimental results show the effectiveness of this method, which significantly increases the reliability of the drive.

Original languageEnglish
Title of host publicationConference Proceedings - IPEMC 2004
EditorsZ. Wang
Pages799-803
Number of pages5
Volume2
Publication statusPublished - 2004
EventConference Proceedings - IPEMC 2004: 4th International Power Electronics and Motion Control Conference - Xi'an, China
Duration: 14 Aug 200416 Aug 2004

Other

OtherConference Proceedings - IPEMC 2004: 4th International Power Electronics and Motion Control Conference
Country/TerritoryChina
CityXi'an
Period14/08/0416/08/04

Keywords

  • Fault tolerance
  • Multilevel inverters
  • Power electronics

ASJC Scopus subject areas

  • Engineering(all)

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