基于回归分析的人体工频电场畸变影响分析预测研究  

Research on Analysis and Prediction of Distortion Phenomena of Power Frequency Electric Field Around Human Body Based on Regression Analysis

作　　者：巩泉泉 杨柳倩 侯琛 李玺 张兆波 GONG Quanquan;YANG Liuqian;HOU Chen;LI Xi;ZHANG Zhaobo(State Grid Shandong Electric Power Research Institute,Jinan 250003,China;State Grid Shandong Electric Power Company,Jinan 250001,China)

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250003 [2]国网山东省电力公司,山东济南250001

出　　处：《山东电力技术》2025年第1期89-96,共8页Shandong Electric Power

基　　金：国网山东省电力公司电力科学研究院自主研发项目“便携式工频电磁场检测设备校准技术研究”(ZY-2023-07)。

摘　　要：为探究输电线路下人体周围工频电场分布规律,量化分析人体位于工频电场时对场强的畸变作用,文中以500 kV架空线路边导线工频电场为研究对象,通过便携式工频电场测量装置,检测在人体垂直和水平方向上不同部位和不同距离处的电场强度,得出输电线路下人体周围工频电场分布规律。结果表明,人体头部、肩部、上臂、腰部、臀部、膝部、脚部均对电场场强产生不同的畸变效果,且当距离人体大于100 cm时,人体对周围空气域内电场的畸变作用可以忽略不计。在此基础上,通过对人体水平方向和垂直方向上不同点位的电场场强检测结果进行回归分析,得出人体不同部位和距离电场中心不同位置对工频电场场强影响的修正方程,为提出工作人员防护措施奠定重要基础。In order to explore the distribution pattern of power frequency electric field surrounding the human body beneath transmission lines and quantitatively analyze the distortion effect of the human body on the field strength when it is situated within the power frequency electric field,this paper takes the power frequency electric field generated by the side conductor of a 500 kV overhead line as the research object.A portable power frequency electric field measurement device is used to detect the electric field strength at various positions and distances in the vertical and horizontal directions relative to the human body,thereby obtaining the distribution pattern of the power frequency electric field around the human body beneath transmission lines.The results show that the head,shoulders,upper arms,waist,buttocks,knees and feet of the human body all have different distortion effects on the electric field strength.When the distance between the measuring position and the human body is greater than 100 cm,the distortion effect of the human body on the electric field in the surrounding air domain can be ignored.On this basis,through regression analysis of the results of the electric field strength detection at different points in the horizontal and vertical directions relative to the human body,a correction equation is obtained for the impact of different parts of the human body and different positions from the electric field center on the power frequency electric field strength,laying an important foundation for proposing protective measures for workers.

关 键 词：输电线路 工频电场 畸变作用 回归分析 

分 类 号：TM933.23[电气工程—电力电子与电力传动]