Title :
Predicting rotational flux distributions in three phase induction motor stators
Author :
Findlay, R.D. ; Stranges, Nick
Author_Institution :
Power Res. Lab., McMaster Univ., Hamilton, Ont., Canada
Abstract :
A substantial portion of the stator in large induction motors is subjected to magnetic flux that rotates in the plane of the laminations. This flux is nearly circularly polarized at the roots of the stator teeth, and is elliptically polarized at the base of the stator slots. Iron losses due to rotational flux differs from that found under alternating flux conditions. This paper describes results obtained from two finite element approaches, a time-harmonic method and a time-stepped magnetostatic solution
Keywords :
finite element analysis; induction motors; laminations; losses; machine theory; magnetic flux; magnetostatics; stators; alternating flux conditions; elliptically polarized flux; finite element approaches; iron losses; laminations; nearly circularly polarized flux; rotating magnetic flux; rotational flux; rotational flux distributions prediction; stator slots; stator teeth roots; three phase induction motor stators; time-harmonic method; time-stepped magnetostatic solution; Bridge circuits; Core loss; Induction motors; Lamination; Magnetic analysis; Magnetic flux; Magnetostatics; Stator cores; Teeth; Testing;
Conference_Titel :
Electrical and Computer Engineering, 2000 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-5957-7
DOI :
10.1109/CCECE.2000.849733
