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In the first: part, the authors deve bop a numerical method for determining the magnetic vector potential of a rotating mr Lt i p o La r current wave, using a special function that generalizes the elliptical integrals used traditionally to calculate the vector potential of a homopolar wave. They then apply this reau I t to the determination of the currents induced in a discoid rotor rotating uniformly in the rotating vector potential of a three-phase excitation winding. They go on to plot the descriptive curve for the cyclic impedance of this asynchronous machine as a function of slip.

2014 Nous présentons dans cet article, une méthode de calcul 3-D de distribution de champs magnétiques, lorsque, dans le domaine étudié il y a un feuilletage fer-air. La modélisation de ce dernier est associée à une méthode variationnelle par éléments finis. Nous tenons compte de la non-linéarité du fer et une méthode de Newton-Raphson appliquée à ce problème 3-D anisotropique est développée. Abstract. 2014 We propose in this paper a 3-D magnetic fields calculation, when, in the studied domain, there is a iron-air lamination. This model is applied to a variational finite elements method. The iron nonlinearity is considered and a Newton-Raphson method for this 3-D anisotropic problem is described.