[1]王敬晓,李斌,高艳霞.高压输电线下三维工频电场的矩量法数学计算[J].深圳大学学报理工版,2015,32(3):290-295.[doi:10.3724/SP.J.1249.2015.03290]
 Wang Jingxiao,Li Bin,and Gao Yanxia.Mathematical calculation of 3D power frequency electric field under high voltage transmission lines based on moment method[J].Journal of Shenzhen University Science and Engineering,2015,32(3):290-295.[doi:10.3724/SP.J.1249.2015.03290]
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高压输电线下三维工频电场的矩量法数学计算()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第32卷
期数:
2015年第3期
页码:
290-295
栏目:
电子与信息科学
出版日期:
2015-05-20

文章信息/Info

Title:
Mathematical calculation of 3D power frequency electric field under high voltage transmission lines based on moment method
文章编号:
201503010
作者:
王敬晓李斌高艳霞
深圳大学物理科学与技术学院,深圳 518060
Author(s):
Wang Jingxiao Li Bin and Gao Yanxia
College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, P.R.China
关键词:
电磁学工频电场模拟电荷法矩量法档距高压输电线路
Keywords:
electromagnetism power frequency electric field charge simulation method the method of moments span high voltage transmission line
分类号:
TM 743
DOI:
10.3724/SP.J.1249.2015.03290
文献标志码:
A
摘要:
基于模拟电荷法与矩量法,考虑弧垂和档距等因素的影响,建立超高压输电线路工频电场三维仿真计算模型,研究超高压输电线路工频电场的分布.以500 kV单回三相水平排列线路为例,对型号为4×LGJ-400/35(外径为26.82 mm,分裂间距为450 mm),悬挂点对地高度为20 m,导线间距为8 m,呈悬链线的导线进行模拟计算.结果表明,考虑导线弧垂后,随着档距增大,弧垂加大,导线对地距离减小,导线下方的场强增大.在垂直档距中央的横向分布上,悬链线模型与二维模型计算结果接近,曲线形状基本一致.导线形状的差异会导致沿导线走向的场强分布存在很大差异.研究可供电网建设和生产运行参考.
Abstract:
By using the charge simulation and the moment method and taking the effects of sag and span into account according to the practical engineering circumstances, we propose a simulation model to analyze the three-dimensional distribution of power frequency electric field under high voltage power transmission lines. This model is applied on a horizontally arranged 500 kV three-phase single loop line, in which the wire (4×LGJ-400/35 with outer diameter of 26.82 mm and bundle spacing of 450 mm) is suspended at the height of 20 m in catenary with wire spacing of 8 m. Simulation results show that the span and sag increase with the decrease of distance between wires and the ground, leading to the strengthened field intensity under the wires. The transverse distribution of the field intensity in the middle of span calculated by the funicular curve model is analogous to that by the two-dimensional model. However, the field intensity distribution along the wire varies according to the different shapes of wires. This result can offer guidance for the power grid construction and operation.

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备注/Memo

备注/Memo:
Received:2014-12-12;Accepted:2015-04-14
Foundation:National Natural Science Foundation of China(61275101)
Corresponding author:Professor Gao Yanxia.E-mail:gyx@szu.edu.cn
Citation:Wang Jingxiao,Li Bin,Gao Yanxia.Mathematical calculation of 3D power frequency electric field under high voltage transmission lines based on moment method[J]. Journal of Shenzhen University Science and Engineering, 2015, 32(3): 290-295.(in Chinese)
基金项目:国家自然科学基金资助项目(61275101)
作者简介:王敬晓(1989—),女(汉族),河南省获嘉县人,深圳大学硕士研究生.E-mail:515179833@qq.com
引文:王敬晓,李斌,高艳霞.高压输电线下三维工频电场的矩量法数学计算[J]. 深圳大学学报理工版,2015,32(3):290-295.
更新日期/Last Update: 2015-05-11