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High frequency torque ripple suppression for high frequency signal injection based sensorless control of SynRMs

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

The main limitation for the wide application of synchronous reluctance motors (SynRMs) is the torque ripple caused by the special structures and control method. To lower the cost of SynRM drive system and expand speed range of SynRMs, high frequency signal injection (HFSI) is an effective sensorless control scheme for SynRMs to achieve low and zero speed operation. For the sensorless control, the low frequency torque ripple caused by asymmetric phase currents has been studied by some researchers, however, the high frequency torque ripple and the audible noise produced by it is mostly neglected and needs further investigation. This paper proposes a novel scheme for HFSI method to acquire accurate rotor position information and suppress the high frequency torque ripple caused by high frequency signals at the same time. Applying the special injection scheme, high frequency torque ripple suppression is achieved. The effectiveness of the proposed method is verified in test-bench experiments.

Original languageEnglish
Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2544-2548
Number of pages5
ISBN (Electronic)9781538683309
DOIs
StatePublished - 24 May 2019
Externally publishedYes
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2019-March

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Keywords

  • High frequency signal injection
  • Sensorless control
  • SynRM
  • Torque ripple

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