Starting method for sensorless operation of slotless permanent magnet synchronous machines

Todd D. Batzel, K. Y. Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

Slotless permanent magnet synchronous motors (PMSM) are receiving much attention for drive applications because of their high efficiency, high power-to-volume ratio, and their elimination of cogging torque. Furthermore, motor control without a rotational transducer is a subject that is receiving significant attention. In order to eliminate the need for high-resolution rotor position sensors, many sensorless techniques have been developed. It is well known, however, that sensorless operation is problematic at standstill-especially for a round rotor machine such as the slotless PMSM. Unless the initial rotor position is known, it is not possible to start the machine at full torque or to guarantee dither free startup. This paper presents a sensorless drive for a slotless PMSM with emphasis placed on stable startup by estimating the initial rotor position before starting. To estimate initial position, voltage pulses are applied to the stator windings. The resultant current measurements are then used to estimate the initial rotor position before starting. The proposed starting method for standstill rotor position identification is verified by experiment on a slotless PMSM.

Original languageEnglish (US)
Title of host publication1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1243-1247
Number of pages5
ISBN (Electronic)0780355695, 9780780355699
DOIs
StatePublished - Jan 1 1999
Event1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Edmonton, Canada
Duration: Jul 18 1999Jul 22 1999

Publication series

Name1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings
Volume2

Other

Other1999 IEEE Power Engineering Society Summer Meeting, PES 1999
CountryCanada
CityEdmonton
Period7/18/997/22/99

All Science Journal Classification (ASJC) codes

  • Economics, Econometrics and Finance (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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    Batzel, T. D., & Lee, K. Y. (1999). Starting method for sensorless operation of slotless permanent magnet synchronous machines. In 1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings (pp. 1243-1247). [787497] (1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PESS.1999.787497