SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection

Kan Akatsu, Michael C. Harke, Robert D. Lorenz

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

6 Citations (Scopus)

Abstract

Initial position and magnet polarity estimation is required for smooth start-up of permanent magnet synchronous machines. The signal-to-noise ratio of the salient signals used for initial position and magnet polarity estimation depends on the machine design and affects the overall performance of the estimation technique. This paper investigates the design of a ring-magnet, surface permanent magnet synchronous machine to maximize the signal-to-noise ratio of the position and polarity signals without compromising the machine performance. Since the rotor geometry is fixed given the ring-magnet, the effect of the stator tooth tip geometry on the saliency signals is evaluated using finite element analysis. By adding a bridge between the stator teeth, the magnitude of the polarity-based signal can be increased significantly. A coupled simulation verifies the implementation of the improved initial position and magnet polarity estimation based on modified machine design.

Original languageEnglish
Title of host publicationConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Pages2393-2398
Number of pages6
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS - New Orleans, LA
Duration: 2007 Sep 232007 Sep 27

Other

Other2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS
CityNew Orleans, LA
Period07/9/2307/9/27

Fingerprint

Magnets
Machine design
Stators
Permanent magnets
Signal to noise ratio
Geometry
Rotors
Finite element method

Keywords

  • Initial position estimation
  • Machine design
  • Polarity signals
  • Self-sensing
  • Sensorless
  • Signal injection
  • SPMSM

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Akatsu, K., Harke, M. C., & Lorenz, R. D. (2007). SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection. In Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) (pp. 2393-2398). [4348110] https://doi.org/10.1109/IAS.2007.361

SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection. / Akatsu, Kan; Harke, Michael C.; Lorenz, Robert D.

Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). 2007. p. 2393-2398 4348110.

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

Akatsu, K, Harke, MC & Lorenz, RD 2007, SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection. in Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)., 4348110, pp. 2393-2398, 2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS, New Orleans, LA, 07/9/23. https://doi.org/10.1109/IAS.2007.361
Akatsu K, Harke MC, Lorenz RD. SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection. In Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). 2007. p. 2393-2398. 4348110 https://doi.org/10.1109/IAS.2007.361
Akatsu, Kan ; Harke, Michael C. ; Lorenz, Robert D. / SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection. Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). 2007. pp. 2393-2398
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