3D integral model of eddy currents and losses in thin nonmagnetic structures in linear media

The paper presents an integral approach to the mathematical and computer modelling of eddy currents and losses in linear media. This approach is particularly suitable for thin nonmagnetic, electrically conductive structures of general 3D shapes where problems with geometrical incommensurability practically exclude application of classical differential methods and corresponding (mostly FEM-based) codes. The suggested methodology starts from an integral formulation for distribution of eddy current density and Joule losses both in the considered structures and inductors of nonnegligible cross-sections. Computation of electromagnetic fields can be, therefore, avoided.