A Hybrid Observer for the Full-speed-range Sensorless Control of Interior Permanent Magnet Motor Drives

Research output: Contribution to conferencePresentation

Abstract

This paper presents a method for the sensorless control in full speed range for an interior permanent-magnet synchronous motor (IPM). At standstill and very low speed region, high frequency (HF) injection technique is used to detect the rotor initial position. A hybrid observer is applied to realize a smooth transition from low to high speed. When the rotor speed goes up to a certain value where back EMF can provide adequate information, a back EMF observer will dominate. The hybrid observer is verified through simulation and experimental results using a three-phase 1-kW IPM motor drive.

Original languageAmerican English
StatePublished - Jul 1 2014
EventIEEE Xplore -
Duration: May 24 2016 → …

Conference

ConferenceIEEE Xplore
Period5/24/16 → …

Keywords

  • Observers
  • Rotors
  • Sensorless control
  • Hafnium
  • Permanent magnet motors
  • Position measurement

Disciplines

  • Electrical and Computer Engineering

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