3D line current model of coils and external circuits

The paper describes a method of three dimensional magnetic field simulation with finite elements including the eddy current problem of coils that are coupled with an electric network. The coupled problem is treated in a time stepping scheme. The electric coils are represented in a mesh-independent fashion by the line current model. The equations from a nodal analysis of the electric circuit are solved simultaneously with the finite element equation system at each time step.<
>