Reduced-order flux observer for speed-sensorless induction motor drives: Gain selection for better noise rejection

Petr Kamenicky, Zdenek Peroutka, Marko Hinkkanen

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

Abstract

This paper deals with the reduced-order flux observer for speed-sensorless induction motor (IM) drives, which shows stable operation even at very low speeds. However, noise appears in the estimated flux in higher speeds (starting around 0.5 p.u.) in the motoring mode. An analytical solution for the observer gain that improves noise rejection of the observer in higher speeds is derived. The proposed gain selection is compared with the original one using a 45-kW IM drive; improved noise rejection with the proposed gain selection is demonstrated.
Original languageEnglish
Title of host publication2012 International Conference on Applied Electronics
EditorsJirí Pinker
Pages139-142
Number of pages4
Publication statusPublished - 5 Sep 2012
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Applied Electronics - Pilsen, Czech Republic
Duration: 5 Sep 20127 Sep 2012

Publication series

NameInternational Conference on Applied Electronics
ISSN (Print)1803-7232
ISSN (Electronic)1805-9597

Conference

ConferenceInternational Conference on Applied Electronics
Abbreviated titleAE
CountryCzech Republic
CityPilsen
Period05/09/201207/09/2012

Keywords

  • flux observer
  • induction motor drive
  • noise re­duction
  • speed sensorless

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