Determination of Frequency-Dependent Characteristics of Substation Grounding Systems by Vector Finite-Element Analysis

Author

Silva, Viviane Cristine ; Cardoso, José R. ; Nabeta, Silvio I. ; Palin, M.F. ; Pereira, F.H.

Author_Institution

Sao Paulo Univ.

Volume

43

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1825

Lastpage

1828

Abstract

A three-dimensional finite-element tool was developed to compute time-harmonic electromagnetic fields and impedance of substation grounding systems. The formulation employs edge-based finite elements for the magnetic vector potential A and nodal shape functions for the electric scalar potential V. The method has been applied in several configurations presented in the literature. The results are compared with both analytical and experimental data reported by other authors, with overall good agreement

Keywords

earthing; electromagnetic fields; finite element analysis; substation protection; electric scalar potential; frequency-dependent characteristics; magnetic vector potential; nodal shape functions; substation grounding systems; time-harmonic electromagnetic fields; vector finite element analysis; Data analysis; Electric potential; Electromagnetic fields; Finite element methods; Frequency; Grounding; Impedance; Magnetic analysis; Shape; Substations; Finite elements; grounding; impedance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.892614

Filename

4137810