Sensorless Rotor Temperature Estimation of Permanent Magnet Synchronous Motor

Martin Ganchev (Speaker), Christian Kral, Helmut Oberguggenberger, Thomas Wolbank

Research output: Chapter in Book or Conference ProceedingsConference Proceedings with Oral Presentationpeer-review

Abstract

The work proposes a method for estimation of the magnet temperature in permanent-magnet synchronous machines by exploiting the d-axis saturation effects in the steel stator core produced by the d-current and rotor flux excitation. The method implies an intermittent injection of a voltage pulse in the d-axis of the motor. The resulting d-current response is a function of both the initial value of the d-current itself and the magnetization level of the magnets. Thus, a temperature dependent variation in the magnetization level of the permanent magnets is reflected in a variation of the d-current slope upon the voltage pulse. Experimental validation of the method is demonstrated with surface permanent-magnet motor.
Original languageEnglish
Title of host publicationProceedings of IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Number of pages5
Publication statusPublished - 2011
Event37th Annual Conference of the IEEE Industrial Electronics Society (IECON 2011) -
Duration: 7 Nov 201110 Nov 2011

Conference

Conference37th Annual Conference of the IEEE Industrial Electronics Society (IECON 2011)
Period7/11/1110/11/11

Research Field

  • Not defined

Keywords

  • magnet temperature
  • rotor temperature
  • permanent-magnet synchronous motor
  • saturation effects
  • voltage pulse injection

Fingerprint

Dive into the research topics of 'Sensorless Rotor Temperature Estimation of Permanent Magnet Synchronous Motor'. Together they form a unique fingerprint.

Cite this