Abstract

This paper proposes the magnetic field analysis method of an induction motor using Three-Dimensional Axi-symmetric Finite Element Method (3D-ASFEM). The part of analysis that cannot be dealt with the two-dimensional magnetic field analysis is made by 3D-ASFEM. The induced voltage of the end ring is calculated by using the vector potentials obtained from 3D-ASFEM. Then, the circuit equations considering the induced voltage and the electromagnetic equation are solved simultaneously by using Two-Dimensional Finite Element Method (2D-FEM). The calculated characteristics of induction motor are in good agreement with the measured ones.

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