Author(s)

H. De Gersem & K. Hameyer

Abstract

Motional finite element simulation of magnetic brakes and solid rotor induction machines H. De Gersem & K Hameyer Katholieke Universiteit Leuven, Dep. EE (ESAT)/Div. ELEN, Leuven, Belgium. Abstract The torques of a magnetic brake and a solid rotor induction machine, fed by sinusoidal voltage sources, are simulated by a motional finite element method. Oscillatory solutions occurring for motional models with elevated velocities, are prevented by adaptive mesh refinement relying upon intermediate solutions stabilised by upwinded finite element test functions. A relaxed successive approximation deals with the non-linear material properties. The connections of the conductors and windings within the finite element model to external loads, impedances and supplies are represented by an electric circuit and added to the system of equations. The technical examples indicate the advantages of the motional formulation. 1 Introduction A conductive material moving in a magnetic field experie

Keywords