Eddy current losses computation in conductives materials: case of Aluminum and Permanent Magnet-Part I: Frequency and current effects

This paper presents a method for calculation of eddy current losses in the conductive material such as permanent magnet and aluminum. A quasi-3D analytical model is developed and the results have been compared to an experimental test. A U-cored Electromagnet Device is used to evaluate eddy current losses generated in the conductive material. The analytical method considers only the effect of frequency, current for differents thickness of the conductives materials. The novelty of this work is based on the modeling by electrical equivalent circuit to find the boundary conditions needed and to verify the assumptions made on the current density by FE results, when solving the Maxwell equations.