An Exact Closed-Form Solution for Lightning-Induced Overvoltages Calculations

被引：59

作者：

Andreotti, A. ^{[1
]}

Assante, D. ^{[1
]}

Mottola, F. ^{[1
]}

Verolino, L. ^{[1
]}

机构：

[1] Univ Naples Federico 2, Dept Elect Engn, I-80125 Naples, Italy

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2009年 / 24卷 / 03期

关键词：

Induced overvoltages; lightning; overhead lines; 2 COUPLING MODELS; OVERHEAD LINES; INDUCED VOLTAGES; RETURN STROKE; FIELDS;

D O I：

10.1109/TPWRD.2008.2005395

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：

We present the evaluation of the induced voltages in a lossless single transmission line, located at a given height over an infinite conductivity ground plane, and exited by an external field due to a step current moving along a vertical channel. This is a classic topic of the theory of lightning-induced voltages on power lines. The technical literature related to this topic has performed a significant effort; however, only approximated formulas have been obtained so far. In this paper, we derive the exact closed-form solution. We also will discuss, evaluate, and compare the approximated formulas with reference to the proposed exact one, thus contributing to clarifying a matter that still is debated and sometimes misleading, as we will show in the paper. We furthermore recall that the examined lightning-induced voltages model is fundamental for the IEEE standard 1410, a guide for improving the lightning performance of power distribution line.

引用

页码：1328 / 1343

页数：16