This paper presents the validation of a small-signal finite element simulation strategy comparing different simulation approaches. At first a full 3D non-linear model in the time domain is presented. Then the small-signal strategy has been applied to the 3D model achieving a considerable reduction of computational time. In both 3D models, the eddy currents in the laminations are fully modelled. Then, in order to avoid 3D model, a 2D model has been considered. In this case, eddy currents are included adopting a homogenization technique. In the 2D case, both non-linear time domain simulations and smallsignal strategy have been implemented. The results of the four considered simulation strategies are in very good agreement, proving that the smallsignal simulation strategy can be profitably used in order to reduce significantly the computational cost. As an example, the paper considers a two port mutual inductor as a test model.
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