Inductance characteristics of PMSMs and their impact on saliency-based sensorless control

Jesus Arellano-Padilla, Chris Gerada, Greg Asher, Mark Sumner

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

21 Citations (Scopus)

Abstract

Advantages of operating a Permanent Magnet Synchronous Machine (PMSM) without a position sensor are many and are well known. This paper presents a study of the effects of space harmonics in the incremental inductances and their impact on the machine saliency. The effects of space harmonics exclusively due to the machine (i.e., the saturation saliency distribution) are given particular consideration. The results are illustrated through inductance analysis and measurement of inductance profiles of two similar PMSM machines. The space harmonics in the inductance profiles are correlated with the position estimate distortions through a Matlab/Simulink embedding finite element (FE) machine simulation. Significant differences in sensorless operation of the two machines are found which correlate to the inductance profiles. This illustrates that inductance profiling can inform upon machine design in order to improve sensorless capabilities.

Original languageEnglish
Title of host publicationProceedings of EPE-PEMC 2010 - 14th International Power Electronics and Motion Control Conference
PagesS11-S19
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010 - Ohrid, Macedonia, The Former Yugoslav Republic of
Duration: 6 Sep 20108 Sep 2010

Publication series

NameProceedings of EPE-PEMC 2010 - 14th International Power Electronics and Motion Control Conference

Conference

Conference14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010
Country/TerritoryMacedonia, The Former Yugoslav Republic of
CityOhrid
Period6/09/108/09/10

Keywords

  • AC machine
  • Sensorless control
  • Simulation
  • Vector control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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