A permanent-magnet rotor containing an electrical winding to improve detection of rotor angular position

Authors
Nondahl, TA Ray, G Schmidt, PB Gasperi, ML
Citation
Ta. Nondahl et al., A permanent-magnet rotor containing an electrical winding to improve detection of rotor angular position, IEEE IND AP, 35(4), 1999, pp. 819-824
Citations number
13
Categorie Soggetti
Engineering Management /General
Journal title
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
ISSN journal
00939994 → ACNP
Volume
35
Issue
4
Year of publication
1999
Pages
819 - 824
Database
ISI
SICI code
0093-9994(199907/08)35:4<819:APRCAE>2.0.ZU;2-Y
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-m ounted magnets and a conducting winding that links only the d axis of the r otor. The rotor winding increases the variation of the stator-winding induc tance that occurs as the rotor rotates and improves the accuracy of rotor a ngular position estimates.