输电线路工频电场的计算与测量研究

doi:10.11985/2016.05.005

电气工程学报 ›› 2016, Vol. 11 ›› Issue (5): 40-45.doi: 10.11985/2016.05.005

输电线路工频电场的计算与测量研究

陈昊¹,朱超¹,李义峰¹,徐懂理²

1.国网江苏省电力公司检修分公司南京 211102
2.南京工程学院电力工程学院南京 211167

收稿日期:2016-01-07 出版日期:2016-05-25 发布日期:2019-12-31
作者简介:陈昊男 1980年生,博士,教授级高工,从事电力系统分析研究。|朱超男 1987年生,博士,工程师,从事电力系统运行研究。

Research on Calculation and Measurement of Power Frequency Electric Field for Transmission Line

Chen Hao¹,Zhu Chao¹,Li Yifeng¹,Xu Dongli²

1.Jiangsu Electric Power Maintenance Branch Company Nanjing 211102 China
2.Nanjing Institute of Technology Nanjing 211167 China

Received:2016-01-07 Online:2016-05-25 Published:2019-12-31

摘要/Abstract

摘要：

高压输电线路周围的电场强度的准确计算和精确测量,对工业生产和人民生活有着重要意义。输电线路具有极弱的电磁波发射特性和周围场强随距离线路的增加而迅速减小的特征,使得工频电场的接收与测量难度较高。通过对线路周围电场的近场区建模,提出一种电场强度测量方法。借助于电场中导体感生电流的分析计算,完成工频电场强度检测装置的设计及试验测试。实验结果验证了该方法的有效性,为实际工程应用的电场强度测量提供一套便捷的实现方法。

关键词: 工频电场, 电场测量元件, 电场强度, 静电平衡

Abstract:

Accurate calculation of electric field intensity around the high voltage transmission line is of great significance to industrial production and people's life. Transmission line has a very weak electromagnetic wave transmission characteristics and the surrounding field strength with the increase of the distance, which is difficult to receive and measure the electric field. Modelling near field of the electric field around the transmission line, a measurement method of electric field intensity is presented. By analyzing the induced current on the conductor in the electric field, the power frequency electric field intensity measuring devices is designed and tested. The experimental results verify the efficiency of this method, and provide a simple and practical method to measure electric field intensity in practice.

Key words: Power frequency electric field, electric field measurement element, electric field intensity, electrostatic balance

中图分类号:

TM15

陈昊,朱超,李义峰,徐懂理. 输电线路工频电场的计算与测量研究[J]. 电气工程学报, 2016, 11(5): 40-45.

Chen Hao,Zhu Chao,Li Yifeng,Xu Dongli. Research on Calculation and Measurement of Power Frequency Electric Field for Transmission Line[J]. Journal of Electrical Engineering, 2016, 11(5): 40-45.

图/表 7

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外加电压/kV	电场强度/(kV/m)		相对误差（%）
外加电压/kV	计算值	测量值	相对误差（%）
5	4.167	4.031	-3.264
7	5.833	5.513	-5.486
8	6.667	6.742	1.125
10	8.333	8.695	4.344
11	9.167	9.856	7.516
13	10.833	10.542	-2.686

测量点	电场强度/(kV/m)		相对误差（%）
测量点	本装置	PMM8053A	相对误差（%）
1	2.428	2.342	3.672
2	4.337	4.405	-1.544
3	3.869	3.891	-0.565
4	5.661	5.253	7.767
5	5.598	5.676	-1.374
6	7.573	7.544	0.384
7	4.779	4.872	-1.909
8	3.482	3.549	-1.888
9	6.348	6.728	-5.648
10	5.403	5.427	-0.442
11	5.001	4.873	2.627
12	3.986	4.013	-0.673

输电线路工频电场的计算与测量研究

Research on Calculation and Measurement of Power Frequency Electric Field for Transmission Line

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