改进复合材料杆塔多波阻抗模型及其仿真计算

doi:10.11930/j.issn.1004-9649.201610010

中国电力 ›› 2018, Vol. 51 ›› Issue (5): 68-74.DOI: 10.11930/j.issn.1004-9649.201610010

改进复合材料杆塔多波阻抗模型及其仿真计算

张宇娇¹, 刘佳炜², 黄雄峰¹, 苏攀¹, 智李¹, 姜岚¹

1. 三峡大学电气与新能源学院, 湖北宜昌 443002;
2. 国网湖北省电力公司检修公司, 湖北武汉 430050

收稿日期:2016-09-26 修回日期:2017-12-20 出版日期:2018-05-05 发布日期:2018-05-07
作者简介:张宇娇(1979-),女,湖北武汉人,博士,副教授,从事超特高压输变电设备运行状态评估、灾害条件下超特高压输电线路故障防治技术研究,E-mail:jiao_zyj@163.com
基金资助:
国家自然科学基金资助项目（51577106）；特高压工程技术（昆明、广州）国家工程实验室开放基金课题（NEL 201519）。

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

ZHANG Yujiao¹, LIU Jiawei², HUANG Xiongfeng¹, SU Pan¹, ZHI Li¹, JIANG Lan¹

1. College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China;
2. Maintenance Company, State Grid Hubei Electric Power Company, Wuhan 430050, China

Received:2016-09-26 Revised:2017-12-20 Online:2018-05-05 Published:2018-05-07
Supported by:
This work is supported by the National Natural Science Foundation of China (No.51577106) and Open Fund of (Kunming, Guangzhou) National Engineering Laboratory for Ultra High Voltage Engineering (No.NEL201519).

摘要/Abstract

摘要： 针对目前复合材料杆塔耐雷性能仿真分析中多采用传统多波阻抗模型，雷击过电压仿真计算结果偏大的情况，考虑导线对地电容影响，提出了改进的多波阻抗模型，根据110 kV复合材料杆塔结构与接地方式，计算各部分波阻抗；建立复合杆塔三维模型，利用有限元法计算导线对地等效电容；利用改进多波阻抗模型计算分析不同塔型、不同接地引下线方式的复合材料杆塔耐雷特性，并与传统模型计算结果进行对比。结果表明，考虑电容时杆塔上的过电压下降了38%，更接近实际值；采用沿线路方向内侧竖直悬垂接地引下的方式可使复合材料杆塔的耐雷水平最大化。

关键词: 复合材料杆塔, 接地引下方式, 多波阻抗模型, 耐雷水平, ATP-EMTP

Abstract: The traditional multi-wave impedance model is utilized widely in lightning performance simulation analysis of composite material tower. However, the simulation result of lightning overvoltage is relatively large. In this paper, an improved multi-wave impedance model is proposed with consideration of the influence of capacitance of conductor to ground. The wave impedance is derived partly according to the 110 kV composite material tower. The equivalent capacitance of conductor to ground is calculated by finite element method (FEM), and the calculation results are compared with the traditional model. The results show that the over voltage of tower with consideration of capacitance decreases by 38%, which are close to the actual value, and the lightning withstand performance of composite material tower is optimal under the grounding down mode of shielding wire vertically suspended on the center line between the two circuit lines.

Key words: composite material tower, grounding down mode, multi-wave impedance model, lightning withstand level, ATP-EMTP

中图分类号:

TM866

张宇娇, 刘佳炜, 黄雄峰, 苏攀, 智李, 姜岚. 改进复合材料杆塔多波阻抗模型及其仿真计算[J]. 中国电力, 2018, 51(5): 68-74.

ZHANG Yujiao, LIU Jiawei, HUANG Xiongfeng, SU Pan, ZHI Li, JIANG Lan. Modeling and Simulation for Insulation Performance Analysis of Composite Transmission Line Tower Under Lightning Overvoltage[J]. Electric Power, 2018, 51(5): 68-74.

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https://www.electricpower.com.cn/CN/Y2018/V51/I5/68

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改进复合材料杆塔多波阻抗模型及其仿真计算

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

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改进复合材料杆塔多波阻抗模型及其仿真计算

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

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