Title :
Losses influenced by third-harmonic flux in induction motors
Author :
Hsu, J.S. ; Liou, S.P. ; Lin, B.T. ; Weldon, W.F.
Author_Institution :
Center for Electromech., Texas Univ., Austin, TX, USA
fDate :
9/1/1991 12:00:00 AM
Abstract :
The trend toward increasing flux density in modern induction motors results in the increase of third-harmonic flux in the magnetic paths. The effects of third-harmonic flux on energy losses in induction motors are discussed. The shapes of flux distributions in various sections of an induction motor are interrelated. The most saturated section normally has a flattened shape of flux density distribution. The effects of the shapes of flux density distribution on losses are compared from the third-harmonic flux standpoint. The losses influenced by the third-harmonic flux may be controlled through lamination punching designs and winding connections
Keywords :
induction motors; losses; magnetic flux; energy losses; flux density; flux distributions; induction motors; lamination punching designs; magnetic flux; third-harmonic flux; winding connections; Air gaps; Equations; Induction motors; Lamination; Magnetic cores; Magnetic flux; Magnetic materials; Permeability; Saturation magnetization; Shape;
Journal_Title :
Energy Conversion, IEEE Transactions on
