Extended Finite Element Method for Calculation of Eddy Currents at High Frequencies

The extended finite element method (XFEM) is used for calculating eddy currents at high frequencies, which reduces the number of unknowns in conductive materials. In this study, 2-D and 3-D models are analyzed numerically, and the solutions are compared with the solution obtained using the conventional FEM (CFEM). The proposed method is shown to give the accurate eddy current distribution and Joule losses for a wide range of frequencies even when the skin depth is smaller than the size of elements in a mesh.