Finite Element Method Based on Equivalent Magnetic Energy Method for Computation of 2D Nonlinear Eddy Current Field

摘要

In this paper, the finite element method using vector potential in applications to 2D nonlinear eddy current field is discussed. The authors use the equivalent magnetic energy method to deal with magnetization curve of ferromagnetic material, and present the formulation of 2D nonlinear eddy current field. With this method the authors analyze the eddy current field in an induction ladle furnace and the force distribution in the charge (molten metal), and plot the corresponding curves.