Signal-injection-assisted full-order observer with parameter adaptation for synchronous reluctance motor drives

Toni Tuovinen, Marko Hinkkanen

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)
368 Downloads (Pure)

Abstract

A back-electromotive-force-based position observer for motion-sensorless synchronous reluctance motor (SyRM) drives is augmented with parameter adaptation laws for improved operation at all speeds, including standstill. The augmented observer is theoretically analyzed under various operating conditions. The analysis indicates that the stator-resistance adaptation should be enabled only at low speeds, the d-axis inductance adaptation should be enabled only at medium and high speeds near no load, and the q-axis inductance adaptation should be enabled only at high speeds under high load. The augmented observer is experimentally evaluated using a 6.7-kW SyRM drive.
Original languageEnglish
Pages (from-to)3392-3402
JournalIEEE Transactions on Industry Applications
Volume50
Issue number5
DOIs
Publication statusPublished - 16 Sep 2014
MoE publication typeA1 Journal article-refereed

Keywords

  • inductance adaptation
  • observer
  • parameter adaptation
  • parameter uncertainties
  • resistance adaptation
  • sensorless
  • signal injection
  • stability conditions

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