Title :
Determination and utilization of the source field in 3D magnetostatic problems
Author :
Le Ménach, Yvonnick ; Clénet, Stephane ; Piriou, Francis
Author_Institution :
Lab. d´´Electrotech. et d´´Electron. de Puissance de Lille, CNRS, Villeneuve d´´Ascq, France
fDate :
9/1/1998 12:00:00 AM
Abstract :
In this paper we study different approaches to introduce the source terms due to the inductors crossed by a uniform current density J 0 in 3D FEM. Two equivalent methods are developed to decompose the current density J in the facet element space with divergence free close to J0. This decomposition is used in the a-formulation without gauge condition. Moreover, from the flux facet the source field Hs can be calculated in the edge element space and introduced into the φ-formulation. As examples of applications we have studied a coil with a complex geometry and a iron core coil
Keywords :
coils; current density; finite element analysis; inductors; magnetic fields; magnetostatics; 3D FEM; 3D magnetostatic problems; complex geometry; current density decomposition; edge element space; facet element space; flux facet; inductors; iron core coil; source field; uniform current density; Boundary conditions; Coils; Current density; Equations; Finite element methods; Geometry; Inductors; Iron; Magnetic fields; Magnetostatics;
Journal_Title :
Magnetics, IEEE Transactions on
