Calculation of 3-dimensional fields in a medium with several dielectrics

Author

Morales, N.O. ; Asenjo, E.S. ; Inostroza, J.L.

Author_Institution

Dept. of Electr. Eng., Chile Univ., Santiago, Chile

Volume

4

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

172

Lastpage

176

Abstract

An analytical-numerical method for computing electric fields in 3-dimensional geometries in heterogeneous media, consisting of several dielectric regions within which there are several conductors to known or floating potentials, is introduced. The method is applicable to those geometries in which the conductors and dielectric materials have forms that can be modeled by spheres, prolate spheroids, oblate spheroids or torus, which is very common in HV and EHV systems with the purpose of reducing or eliminating corona phenomena. The method is based on an analytical function constructed for the electric potential, from a limited development of harmonic functions in a coordinate system appropriate to the form of the conductors and dielectric regions in the medium

Keywords

dielectric materials; electric fields; EHV system; HV system; analytical-numerical method; conductor; corona; electric potential; floating potential; harmonic function; heterogeneous dielectric medium; oblate spheroid; prolate spheroid; sphere; three-dimensional electric field; torus; Conducting materials; Conductors; Dielectrics; Electric potential; Electrostatics; Geometry; H infinity control; Harmonic analysis; Nonhomogeneous media; Permittivity;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.595243

Filename

595243