Influence of magnetic saturation on rotor bar current waveform and performance in induction machines

Gundogdu T., Zhu Z., Mipo J., Farah P.

22nd International Conference on Electrical Machines, ICEM 2016, Lausanne, Switzerland, 4 - 07 September 2016, pp.391-397 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/icelmach.2016.7732556
  • City: Lausanne
  • Country: Switzerland
  • Page Numbers: pp.391-397
  • Keywords: Induction machines, rotor bar current, saturation, slot leakage flux, tooth flux
  • Istanbul Technical University Affiliated: No

Abstract

© 2016 IEEE.This paper investigates the influence of magnetic saturation on the rotor bar current waveform and performance characteristics of a squirrel-cage Induction Machine (IM). The levels of iron saturation in different parts, including stator and rotor back iron, tooth body and tooth tips etc., are examined and their influences are investigated, while the dominant part which causes the non-sinusoidal rotor bar current waveform is identified. It has revealed that the magnetic saturation, particularly in the rotor tooth, has a significant effect on the bar current waveform and the phenomenon is explained in depth.