Space Harmonics and Saturation Interaction in Fault-Tolerant Induction Machine Drives Due to a Zero-Sequence Stator Current

Heinrich T. Eickhoff*, Roland Seebacher, Annette Muetze

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Postfault operation strategies for three-phase squirrel cage induction machine drives enable increased fault-tolerance in the case of inverter faults. However, in strategies that apply a zero-sequence stator current, additional space harmonics interact with the fundamental wave. This article studies these space harmonics and the occurring saturation interaction with the main system based on two different induction machines. For illustration, and to support the analysis with quantitative results, it exemplarily investigates the effects of this saturation interaction on the flux linkages and the torque during the postfault operation of a rotor flux-oriented drive.

Original languageEnglish
Article number9478266
Pages (from-to)4958-4969
Number of pages12
JournalIEEE Transactions on Industry Applications
Volume57
Issue number5
DOIs
Publication statusPublished - 1 Sep 2021

Keywords

  • Fault tolerance
  • induction motors
  • inverter faults
  • magnetization
  • variable speed drives

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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