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An Integro-Differential Approach for Eddy Currents Computation in Structures Having Heterogeneous Dimensions

By Lyes Aomar and Hicham Allag
Progress In Electromagnetics Research M, Vol. 106, 127-137, 2021
doi:10.2528/PIERM21082609

Abstract

The aim of this paper is to develop a hybrid modeling approach based on direct coupling between the finite element method (FEM) and the partial element equivalent circuits method (PEEC). Through this FEM-PEEC approach, we can efficiently compute the three-dimensional eddy current distribution created by a rectangular coil (exciting coil) in conductive and magnetic structures having heterogeneous dimensions. Magnetic field created by the rectangular coil is given by calculating quasi-static Green's function integrals. In goal to construct rectangular coil, the calculation is made for elementary parallelepipedic conductors oriented respectively in x and y directions. By this manner, three possible configurations are proposed and compared to show errors, especially in corners. By only meshing the active parts of the domain (without air region), we confirm through the issued results that the proposed methodology contributes to accelerate the execution time while maintaining the precision. The obtained results are validated with the numerical ones by 3D FEM (Flux 3D Software).

Citation


Lyes Aomar and Hicham Allag, "An Integro-Differential Approach for Eddy Currents Computation in Structures Having Heterogeneous Dimensions," Progress In Electromagnetics Research M, Vol. 106, 127-137, 2021.
doi:10.2528/PIERM21082609
http://jpier.org/PIERM/pier.php?paper=21082609

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