Patent ID: 6239526
Filing Date: 2001-05-29
Classification: H02K

Abstract:
A flux barrier type synchronous reluctance motor having a stator with a plurality of spaced slots and teeth and a rotor with a plurality of flux barriers, each of the flux barriers having a first rib and a second rib at opposite ends thereof, wherein the first rib faces the center of a respective slot of the stator and the second rib faces the center of a corresponding tooth of the stator, reducing torque ripple, the positions of the flux barrier corresponding to the positions of the stator slots and being determined by the equation:.alpha..sub.m =(2m-1).theta.-.theta./2,m.ltoreq.Ns/2P (3),where .alpha..sub.m indicates an angle between the ribs and a central axis of a magnetic pole of the motor, .theta. indicates a pole pitch of a stator slot, and m indicates the order of the ribs distanced from the central axis of the magnetic pole as per pole.