Investigation into an electronically-commutated DC motor with NdFe permanent magnets

Author

Gieras, J.F. ; Kileff, I. ; Wing, M.

Author_Institution

Dept. of Electr. Eng., Cape Town Univ., Rondebosch, South Africa

fYear

1994

fDate

12-14 Apr 1994

Firstpage

845

Abstract

The paper deals with a small, two-pole, electronically-commutated DC motor with a moving rare earth NdFe permanent magnet and a core-less armature winding. The maximum output power is 100 W and the maximum permissible speed is 15000 rpm. The magnetic field distribution in the cross section of the motor has teen investigated using the finite element method. The steady-state load characteristics and transient characteristics for acceleration, deceleration, and reversal have been measured and calculated. The electronically-commutated DC NdFe motor is a high-performance motor

Keywords

DC motors; commutation; finite element analysis; machine theory; machine windings; magnetic fields; permanent magnet motors; small electric machines; transient analysis; 100 W; NdFe permanent magnets; acceleration; core-less armature winding; deceleration; electronically-commutated DC motor; finite element method; high-performance motor; magnetic field distribution; reversal; steady-state load characteristics; transient characteristics; two-pole; Circuits; Commutation; DC motors; Magnetic cores; Permanent magnet motors; Rotors; Stator cores; Stator windings; Torque; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean

Conference_Location

Antalya

Print_ISBN

0-7803-1772-6

Type

conf

DOI

10.1109/MELCON.1994.380970

Filename

380970