Time-Domain Analysis of Frequency-Dependent Electrical Parameters of Soil

被引:27
|
作者
Alipio, Rafael [1 ]
Visacro, Silverio [2 ]
机构
[1] Fed Ctr Technol Educ Minas Gerais, Dept Elect Engn, BR-31270901 Belo Horizonte, MG, Brazil
[2] Univ Fed Minas Gerais, Lightning Res Ctr, BR-30315220 Belo Horizonte, MG, Brazil
关键词
Frequency dependence of soil parameters; grounding; lightning; time-domain Maxwell equations; LIGHTNING-INDUCED VOLTAGES; GROUNDING ELECTRODES; OVERHEAD LINES; MODELS;
D O I
10.1109/TEMC.2016.2631892
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The analysis of the impact of the frequency dependence of electrical parameters of soil on the lightning response of electrical systems has often been based on frequency-domain approaches. In this paper, a causal time-domain field formulation including the frequency dependence of soil parameters is proposed. The consistency of the developed formulation is proved considering a canonical electromagnetic problem and also comparisons with experimental results. The proposed formulation is useful for application of techniques such as the finite-difference time-domain method in problems involving dispersive soils.
引用
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页码:873 / 878
页数:6
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