Improved Analytical Modeling of Conductive Losses in Magnetic Components

The one well-known one-dimensional method for calculating the ac resistance of multilayer windings contains a built-in orthogonality which has not been reported previously. Orthogonality between skin effect and proximity effect makes a more generalized approach for the analytical solution of ac resistance in windings possible. This includes a method to calculate the ac resistance of round conductor windings which is not only convenient to use, but gives more accurate ansers than the basic one-dimensional method because the exact analytical equations for round conductors can be used. © 1994 IEEE