Title :
On the calculation of the Carter factor in the slotted electric machines
Author :
Viorel, Alina Cristina ; Viorel, Ioan-Adrian ; Strete, Larisa
Author_Institution :
Dept. of Comput. & Electr. Eng., Lucian Blaga Univ. of Sibiu, Sibiu, Romania
Abstract :
The magnetic flux density distribution in the air-gap of single sided slotted electric machines is analyzed in the paper and the Carter´s factor is computed. The finite element method (FEM) obtained results are compared with that calculated by using analytic estimation functions. The case of single sided slotted machines with large values of the slot opening to tooth pitch ratio is discussed also in the paper, interesting conclusions being drawn by comparing the air-gap flux density values obtained via 2D-FEM analysis against analytical estimations.
Keywords :
air gaps; electric machines; finite element analysis; magnetic flux; reluctance machines; 2D FEM analysis; Carter factor calculation; analytic estimation function; finite element method; magnetic flux density distribution; reluctance machine; single sided slotted electric machines air gap; tooth pitch ratio; Air gaps; Approximation methods; Coils; Finite element analysis; Rotors; Stators; Carter´s factor; air-gap flux density; analytical models;
Conference_Titel :
Electrical and Power Engineering (EPE), 2014 International Conference and Exposition on
Conference_Location :
Iasi
DOI :
10.1109/ICEPE.2014.6969923
