A Finite Element Program to Compute the Circuit Model Parameters of a Squirrel Cage Induction Motor

Abstract

The paper presents a finite element program likely to solve the electromagnetic field problem for an induction motor with squirrel cage rotor; the program is implemented in MATLAB computing environment. The methodology used by the program is based on the harmonic steady state solution of the electromagnetic field problem method described in [1]. Moreover, the electromagnetic field problem solution will determine the circuit model parameters, by which we can determine the functional parameters of the induction motor. In order to validate the proposed program, the authors compared the numerical results of the program with the analytical results obtained using formulas presented in the literature and with the experimental measurements on the test platform. The proposed program provides a computation tool for the electrical machines designers, with results close to measured values. The CPU time is reduced. Also, the program has a didactic nature and it can be used as a training basis for young engineers.