Compensating angle estimation errors caused by magnetic saturation in anisotropy-based sensorless control schemes

Sascha Kuehl, Peter Landsmann, Ralph M. Kennel

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

13 Scopus citations

Abstract

In anisotropy-based sensorless control schemes, the influence of magnetic saturation is usually neglected. This causes angle estimation errors, especially under high-load conditions. By applying a more accurate machine model, this error can be effectively compensated. The present work gives a short introduction to the non-linear model applied and analyzes the angle errors in both, open-loop and closed-loop sensorless operation. Additionally, an algorithm is proposed, that uses the model information to compensate the angle estimation error. The effectiveness of this approach is verified by measurements on a synchronous reluctance machine.

Original languageEnglish
Title of host publication3rd IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2012
DOIs
StatePublished - 2012
Event3rd IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2012 - Milwaukee, WI, United States
Duration: 21 Sep 201222 Sep 2012

Publication series

Name3rd IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2012

Conference

Conference3rd IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2012
Country/TerritoryUnited States
CityMilwaukee, WI
Period21/09/1222/09/12

Keywords

  • SynRM
  • Synchronous reluctance machine
  • cross-saturation
  • magnetic saturation
  • polynomial approximation
  • self-sensing control
  • sensorless control

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