A Hermite Interpolation Model to Accelerate the Calculation of the Horizontal Electric Field of a Lightning Channel Along a Transmission Line

被引：6

作者：

Zou, Jun ^{[1
]}

Jin, TaoBin ^{[1
]}

Li, WenWen ^{[1
]}

Lee, Jaebok ^{[2
]}

Chang, Sughun ^{[2
]}

机构：

[1] Tsinghua Univ, State Key Lab Control & Simulat Power Syst & Gene, Dept Elect Engn, Beijing 100084, Peoples R China

[2] Korea Electrotechnol Res Inst, Elect Environm Grp, Chang Won 641600, South Korea

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2013年 / 55卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Hermite interpolation model; lightning channel; moment technique; Sommerfeld integral; NONUNIFORM ELECTROMAGNETIC-FIELD; RETURN STROKE; FORMULATION; VOLTAGES;

D O I：

10.1109/TEMC.2012.2214037

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 radiated horizontal electromagnetic field of a lightning channel acts as the excitation when the lightning-induced voltages on overhead lines are under study. To accelerate the calculation of the horizontal electric field of a lightning channel, a piecewise Hermite interpolation model is proposed, which exploits the distinct feature of the transmission line whose height keeps unchanged. In the piecewise Hermite interpolation model, the key technique is fast evaluating the derivative of the horizontal electric field expressed by the generalized Sommerfeld integral. In this paper, the moment technique is utilized to calculate the derivatives efficiently. As demonstrated in the numerical examples, the piecewise Hermite interpolation model can reach a high accuracy with a very low computation cost.

引用

页码：124 / 131

页数：8

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