Comparison of the utilization of brushless DC servomotors with different rotor length by 3D-finite element analysis

Author

Henneberger, G. ; Domack, S. ; Berndt, J.

Author_Institution

Inst. of Electr. Machines, Univ. of Technol., Aachen, Germany

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3675

Lastpage

3678

Abstract

This paper describes the influence of the stator end winding coils on two different asymmetrical rotor types with short motorlength. A current control method is applied to use the reluctance of the rotor and to reach minimal current consumption. Due to the saturation, 3D- finite elements field calculations are compared with the 2D- finite element field calculation. Different rotor lengths are taken into account and a difference of rotor length to stator length is examined. To regard the effect of saturation, different current levels are calculated

Keywords

DC motors; electric current control; electric reactance; finite element analysis; machine theory; permanent magnet motors; rotors; servomotors; torque; 3D FEM; PM motors; asymmetrical rotor; brushless DC servomotors; current consumption; current control method; finite element analysis; reluctance; rotor length; saturation; short motorlength; stator end winding coils; Brushless DC motors; DC motors; Finite element methods; Magnets; Reluctance motors; Robots; Rotors; Servomotors; Stators; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312738

Filename

312738