DocumentCode
1533144
Title
A permanent-magnet rotor containing an electrical winding to improve detection of rotor angular position
Author
Nondahl, Thomas A. ; Ray, Glen ; Schmidt, Peter B. ; Gasperi, Michael L.
Author_Institution
Adv. Technol. Labs., Allen-Bradley Co., Milwaukee, WI, USA
Volume
35
Issue
4
fYear
1999
Firstpage
819
Lastpage
824
Abstract
Sensorless detection of rotor angular position is desirable for decreasing the cost and increasing the reliability of permanent magnet AC motor drive systems. This paper describes tests performed on a rotor that has surface-mounted magnets and a conducting winding that links only the d axis of the rotor. The rotor winding increases the variation of the stator winding inductance that occurs as the rotor rotates and improves the accuracy of rotor angular position estimates
Keywords
AC motor drives; machine testing; machine theory; machine vector control; parameter estimation; permanent magnet motors; rotors; stators; conducting winding; permanent magnet AC motor drive; position estimate accuracy; rotor winding; sensorless rotor angular position detection; stator winding inductance; surface-mounted magnets; AC motors; Bars; Coils; Inductance; Magnets; Rotors; Sensorless control; Stator windings; Synchronous motors; Testing;
fLanguage
English
Journal_Title
Industry Applications, IEEE Transactions on
Publisher
ieee
ISSN
0093-9994
Type
jour
DOI
10.1109/28.777189
Filename
777189
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