Losses influenced by third-harmonic flux in induction motors |
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| Authors: | Hsu J.S. Liou S.P. Lin B.T. Weldon W.F. |
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| Affiliation: | Center for Electromech., Texas Univ., Austin, TX ; |
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| 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 |
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