• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2016, Vol. 37 ›› Issue (1): 50-55.doi: 10.3969/j.issn.1000-7229.2016.01.008

• 输配电技术 • 上一篇    下一篇

750  kV交流输电线下人体的工频电场效应分析

麻焕成1,林晓焕1,曹雯1,申巍2,汪通1,王洋3   

  1. 1.西安工程大学电子信息学院,西安市710048;2.国网陕西省电力公司电力科学研究院,西安市710054;3.电力设备电气绝缘国家重点实验室(西安交通大学),西安市710049
  • 出版日期:2016-01-01
  • 作者简介:麻焕成(1989),男,硕士研究生,主要研究方向为高电压与绝缘技术; 林晓焕(1964),女,教授,硕士生导师,主要研究方向为电力系统远动及调度自动化; 曹雯(1983),女,讲师,硕士生导师,主要研究方向为高电压与绝缘技术; 申巍(1983),男,高级工程师,主要研究方向为绝缘劣化与绝缘检测; 汪通(1989),男,硕士研究生,主要研究方向为电子负载网络拓扑。
  • 基金资助:

    西安工程大学博士科研启动基金资助项目(BS1338)

     

Power Frequency Electric Field Effect on Human Body in 750 kV AC Transmission Lines

MA Huancheng1, LIN Xiaohuan1, CAO Wen1, SHEN Wei2, WANG Tong1, WANG Yang3   

  1. 1. School of Electronic Information, Xi'an Polytechnic University, Xi'an 710048, China;2. Electric Power Research Institute of State Grid Shaanxi Electric Power Company, Xi'an 710054, China;3. State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
  • Online:2016-01-01
  • Supported by:

    The Project is supported by the Doctoral Scientific Research Foundation of Xian Polytechnic University (BS1338)

摘要:

随着输电线路电压等级的不断提高,工频电磁场问题越来越受到人们的关注。分析了750  kV输电线路下简化人体模型的电场效应,构建了双手下垂、双手上举、撑伞以及行走的人体模型,比较了不同姿势下人体感应电场的分布情况。以双手下垂模型为例,研究了架空输电线离地高度对人体电场效应的影响。仿真计算结果表明,人体的存在会使其所在空间的电场分布发生畸变,人体姿势的改变会影响感应电场的分布情况,局部场强最大值总是出现在人体轮廓的尖端部位,导线离地高度越大,其下方人体的感应电场值越小。不同姿势下人体模型的局部场强最大值在允许的数值范围之内,750  kV超高压输电线路的工频电场不会对人体健康造成危害。

关键词: 750 , kV, 工频电场, 仿真计算, 有限元法(FEM), 人体模型

Abstract:

 With the continuous improvement of the voltage level of transmission line, people pay more and more attention to the power frequency electromagnetic field problems. This paper analyzes the power frequency electric field effects of simplified human body model in 750kV AC transmission lines. In order to compare the distribution of induced electric field of human body with different postures, prolapsing and lifting of hands, taking an umbrella and walking human body model is built. Taking both hands prolapse model as an example, we study the influence of the height from the ground to the overhead transmission line on human electric field effect. The simulation calculation results show that the existence of human body will change the distribution of the electric field near the ground. There will be the maximum local field strength near the head, ear and shoulder of human body. The change of body posture will affect the distribution of induced electric field and the maximum local field strength always appears in the contour parts of human body. The higher the wire above the ground is, the smaller the electric field value on human body is. It can be concluded that the maximum local field strength of human body model in different postures is still within the numerical range of health and the power frequency electric field of 750 kV UHV transmission line won't cause harm to human body health.

Key words: 750 kV, power frequency electric field, simulation calculation, finite element method (FEM), human body model

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