Title :
Influence of number of poles on the torque of DC brushless motors with auxiliary salient poles
Author :
Rizzo, M. ; Savini, A. ; Turowski, J.
Author_Institution :
Dept. of Electr. Eng., Palermo Univ., Italy
fDate :
11/1/1991 12:00:00 AM
Abstract :
The influence of the number of poles and inside or outside field structure on the torque of brushless DC motors with auxiliary salient poles has been investigated. Nonlinear finite-element-method analysis, associated with the integration of Maxwell´s stress tensor, has shown that, for some structures, especially those with outside field, this influence can be significant and that four-pole outside-field motors are the most advantageous
Keywords :
DC motors; finite element analysis; integration; machine theory; poles and zeros; torque; DC brushless motors; Maxwell stress tensor integration; auxiliary salient poles; four-pole outside-field motors; inside field structure; nonlinear FEM analysis; number of poles; outside field structure; torque; Brushless DC motors; Brushless motors; DC motors; Magnetic analysis; Permanent magnet motors; Reluctance motors; Rotors; Servomotors; Tensile stress; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
