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The random energization of power transformers may generate high inrush currents, which can cause damages to the transformer. The modeling of such a phenomenon has to be based on a precise description of the transformer associated to a reliable magnetic hysteresis model for the material. This paper presents an approach based on the Finite Element Methods (FEM) and the Jiles-Atherton model. The method...
This paper deals with a method using the spherical harmonic expansion to identify a magnetic equivalent model to a given electrical device. The most significant issue of this identification is the number of required magnetic sensors to obtain a valid model. Therefore, our method is based on a probabilistic approach to solve inverse problems using prior information of the source like periodicities...
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