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

Author

Nondahl, Thomas A. ; Ray, Glen ; Schmidt, Peter B.

Author_Institution

Adv. Technol. Labs., Rockwell Autom., Milwaukee, WI, USA

Volume

1

fYear

1998

fDate

12-15 Oct. 1998

Firstpage

359

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 conducting winding allows rotor angular position to be detected by stator-winding inductance variations.

Keywords

inductance measurement; parameter estimation; permanent magnet motors; rotors; stators; synchronous motors; AC motor drive systems; conducting winding; d-axis; electrical winding; motor angular position detection; permanent magnet rotor; permanent magnet synchronous motors; reliability; sensorless position detection; stator-winding inductance variations; surface mounted magnets; AC motors; Bars; Inductance; Magnetic flux; Permanent magnet motors; Permanent magnets; Rotors; Stator windings; Synchronous motors; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE

Conference_Location

St. Louis, MO, USA

ISSN

0197-2618

Print_ISBN

0-7803-4943-1

Type

conf

DOI

10.1109/IAS.1998.732319

Filename

732319