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

Volume

34

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

2509

Lastpage

2512

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 H_s 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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717578

Filename

717578