Three dimensional eddy current calculation using reluctance-conductance network formed by means of FE method

Author

Demenko, Andrzej

Author_Institution

Inst. of Electr. Ind. Eng., Poznan Tech. Univ., Poland

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

741

Lastpage

745

Abstract

Reluctance-conductance network (RCN) for 3D eddy current calculation is presented. The proposed RCN has been formed by means of the FE method using the A-V formulation. The finite element is assumed to be an edge element in relation to magnetic potential A and a nodal element in relation to electric potential V. The edge values of A represent the loop fluxes in the reluctance network. The time derivatives of loop fluxes create electromotive forces in the branches of the conductance network. The RCN formed by the BE method has mutual reluctances and mutual conductances. To calculate the integrals that describe the conductances an approximate formula is proposed. This formula gives the model of rectangular prism without mutual conductances. An example of the application of the RCN method is presented. The results for the RCN with mutual conductances and the RCN without these conductances are compared

Keywords

eddy currents; electric potential; finite element analysis; magnetic flux; A-V formulation; FE method; approximate formula; conductance network; edge element; electric potential; electromotive forces; loop fluxes; magnetic potential; mutual conductances; mutual reluctances; nodal element; rectangular prism; reluctance-conductance network; three dimensional eddy current calculation; time derivatives; Coupling circuits; Eddy currents; Electric potential; Finite element methods; Helium; Industrial engineering; Magnetic circuits; Magnetic flux; Magnetic flux density; Poisson equations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877554

Filename

877554