Current Distribution in a High Frequency Induction Coil

摘要

This paper presents an efficient way to compute current distribution in a high frequency induction coil, using a surface impedance and magnetic reduced scalar potential formulation. This formulation naturally respect the Ampere's law. The validity domain is determined by comparing the skin depth to the other geometrical dimensions of the coil cross section. The current distribution computed using this method is compared to other classical approaches. Finally, we proved the impact of the current distribution in some industrial processes, specially when the load is dosed to the coil.