Modeling of Electrical Machines by Using a Circuit-Coupled Finite Element Method

This paper presents a nonlinear circuit-coupled 2D finite element model for use in the dynamic simulation of electrical machines with multiple sets of windings, connected to an external electrical circuit, and with rotating parts. An inductance is introduced to account for the 3D end effects on phase inductance, due to the end windings and axial fringing field. The model is applied to the simulation of two types of electrical machines, a permanent magnet generator and a switched reluctance motor. The modeling procedures are described and simulation results are presented. The calculated performances are compared with test results to validate the modeling.

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