Modeling end effect due to axial slitting in solid-rotor induction motors
نویسندگان
چکیده
Axial slits remarkably improve performance of the solid-rotor induction motors due to reduction of the rotor surface impedance. Those also change the end effect, but this is usually ignored in analysis, as it would require taking account for a realistic current density distribution. This work employs a simplified local 3-d finite element analysis to create a surrogate model of this end effect. The latter describes the effective conductivity which reduces the third dimension in the eddy-current problem and enables a more accurate 2-d modeling. Validity of the approach is confirmed experimentally.
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