Title :
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.
fDate :
4/1/2007 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.892614
