Modeling and Insulation Performance Analysis of Composite Transmission Line Tower Under Lightning Overvoltage

被引：10

作者：

Huangfu, Youpeng ^{[1
]}

Wang, Shuhong ^{[1
]}

Wang, Guolin ^{[1
]}

Xu, Weijie ^{[1
]}

Zhang, Haijun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Fac Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Composite transmission line (TL) tower; finite-element method (FEM); lightning overvoltage; multi-conductor transmission line (MTL);

D O I：

10.1109/TMAG.2014.2356859

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：

In this paper, a new non-uniform multiconductor transmission line model combining with lumped circuit elements for a composite transmission line (TL) tower under lightning strokes is established. The metal ground-wire cross arms, the metal tower main body and its bracings are modeled as equivalent horizontal and vertical TLs, respectively. The two grounding ladders are regarded as two parallel-vertical TLs considering their mutual coupling. These distributed TL parameters are calculated by analytic equations. The composite arms are equivalent as lumped capacitances determined by employing 3-D finite-element method. The lightning overvoltage analysis for a 330-kV composite tower is performed by applying the hybrid model. The incident and reflected voltages are calculated. The insulation performance evaluation for the composite tower is discussed in detail.

引用

页数：4

共 10 条

[1] TOWER MODELING FOR LIGHTNING SURGE ANALYSIS USING ELECTROMAGNETIC TRANSIENTS PROGRAM [J].