Induced voltages on distribution lines due to lightning discharges on nearby metallic structures

被引:23
|
作者
Piantini, A [1 ]
Janiszewski, JM [1 ]
机构
[1] Univ Sao Paulo, Inst Electrotechn & Energy, IEE, USP, BR-05508 Sao Paulo, Brazil
关键词
lightning; induced voltages; overhead lines; electromagnetic coupling; numerical methods;
D O I
10.1109/20.717651
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
This paper presents a numerical method for the calculation of voltages induced on overhead lines due to lightning discharges striking a metallic structure in its vicinity, The calculation is done from the determination of the electric and magnetic potentials associated with the charges in the return stroke channel and with the currents that propagate in the channel and in the structure. It is shown that in this situation the induced voltages may differ significantly from those originated by lightning discharges direct to the ground. Comparisons between measured and calculated voltage waveforms confirm the validity of the procedure.
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页码:2799 / 2802
页数:4
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