A Complete Lumped Equivalent Circuit of Three-Phase Squirrel-Cage Induction Motors Using the Two-Dinensional Finite Elements Technique

This paper presents the use of the finite element technique for determining the parameters of a three-phase squirrel-cage induction motor. The common parameters, in addition to the core losses and ratio of number of tums, are obtained from the finite element field solutions. The magnetizing characteristic and core losses curve are used to determine the flux distribution within the motor structure. The linear time harmonic vector potential field solution is utilized for the inductances computation. The accuracy of the finite element application is verified using the available precise results.