Author(s)

R. Chedid & A.J. Curie

Abstract

Axi-symmetric finite element modelling of induction machine end-regions R. Chedid," A.J. Curie/ o Department of Electrical Engineering, American University ^ Department of Aeronautics, Imperial College of Science, Technology and Medicine, Exhibition Road, London ABSTRACT This paper incorporates an axi- symmetric finite element model to describe the machine end-region magnetic field distribution. The finite element model results can then be used in an harmonic equivalent circuit model to predict the machine performance. An end-region finite element model is developed because it is capable of accurately taking account of the non-linear and eddy current effects in the end-region. 1. INTRODUCTION An axi-symmetric finite element model will be developed to describe the magnetic field distribution of a squirrel cage induction machine end-region with rotor mounted conducting discs. A further constraint is that the finite element model of the induction machine end-region must also ta

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