Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Similares en SciELO
Compartir
Ingeniería, investigación y tecnología
versión On-line ISSN 2594-0732versión impresa ISSN 1405-7743
Resumen
URIBE-CAMPOS, Felipe Alejandro. Numerical Infinite Series Solution of the Ground-Return Pollaczek Integral. Ing. invest. y tecnol. [online]. 2015, vol.16, n.1, pp.49-59. ISSN 2594-0732.
In this paper, the Wedepohl-Wilcox series, proposed for calculating ground-return impedances of buried cables and electromagnetic transients, are analyzed in detail. The origin of this series goes back to the original integral derived by Pollaczek. To enhance the analysis developed here, a numerical comparison between the series, the direct numerical integration of Pollaczek integral, and a proposed hybrid numerical algorithm is presented in this paper. The latter consists on: a) the use of a vector-type efficient algorithm for the converging series for low frequencies, and b) trapezoidal numerical integration for the high frequency range. In addition, and based on the analysis, a criterion for switching between series and direct numerical integration is proposed here.
Palabras llave : cables; frequency response; power system transients; earth-impedance; ground-return models; skin-effect.