A 3D computer code for steady-state magnetic field calculations in air

This paper deals with a 3D computer code for the calculation of magnetic fields, self and mutual inductance coefficients and electromagnetic forces. A peculiarity of this code is the presence of a number of very precise models for the calculation of the field produced by circular or non circular coils, by busbars or by any other kind of conductors of arbitrary shape. The possibility of using different coordinate systems for input/output data represents an additional user oriented facility. The problems of singularities both for elliptic integral calculation, used for circular coils, and for Biot - Savart’s integral have been taken into account for the field calculation inside the conductors. As this code has been conceived to solve magnetostatic problems in air-core devices for fusion research, an easy input for particular windings, such as toroidal and poloidal windings, is also provided. An automatic generation of the points of the current lines in busbars and in non circular coils has been inserted in the code as well. © 1988 IEEE