适应高湿度环境的输变电工程电场强度测量与试验  

Measurement and Test of Power Transmission and Transformation Project Electric Field Intensity Electromagnetic Environment Under High Humidity Condition

作　　者：谢连科 王敏 李乐丰 崔相宇 赵国 XIE Lianke;WANG Min;LI Lefeng;CUI Xiangyu;ZHAO Guo(State Grid Shandong Electric Power Research Institute,Jinan 250003,China;Jinan Motor Vehicle Pollution Prevention and Control Center,Jinan 250099,China;Hubei University of Technology,Wuhan 430068,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]济南市机动车污染防治中心,山东济南250099 [3]湖北工业大学,湖北武汉430068

出　　处：《山东电力技术》2022年第9期50-54,共5页Shandong Electric Power

基　　金：国家电网有限公司科技项目“输变电工程环保监测与敏感区域预测技术研究”(520626140023)。

摘　　要：电磁环境监测是输变电工程环保工作的重要课题,针对目前广泛应用的电场监测仪器无法实现在环境湿度大于80%条件下的工频电场测量问题,首先对工频电场测量的两种基本原理即光学测量法和电学测量法进行了详细阐述,对悬浮式电场探头和地参考型电场探头的基本原理和测量方法进行了理论对比分析。在此基础上,通过分析湿度对电场监测仪器的影响,构建基于地参考型探头的高湿度条件下工频电磁场测量系统。在不同环境湿度条件下,对选取的试验线路进行对比测试与数据分析。试验结果表明,空气湿度对工频电场的分布基本没有影响,本文构建的测量系统可以实现高湿度条件下电场强度监测,可以为雨天或湿度较大天气下电磁环境测量提供有力的技术支撑。Electromagnetic environment monitoring is an important topic of environmental protection in power transmission and distribution projects. In view of the problem that the widely used electric field monitoring instruments can’t realize the power frequency electric field measurement under the condition of environmental humidity greater than 80%,firstly,the principles of two basic power frequency electric field measurements are discussed,which is optical measurement method and electrical measurement method,and the basic principles and measurement methods of the floating electric field probe and the ground-referenced electric field probe are compared and analyzed. Secondly,by analyzing the influence of humidity on electric field monitoring instruments,a power frequency electromagnetic field measurement system based on ground-referenced probes under high humidity conditions is constructed.Thirdly,a comparative test and data analysis were carried out on the selected test circuit under different environmental humidity conditions. The test results show that air humidity basically has no effect on the distribution of power frequency electric field.The measurement system constructed in this paper can monitor the electric field strength under high humidity conditions,and can provide strong technical support for electromagnetic environment measurement in rainy or humid weather.

关 键 词：输变电工程 工频电场强度 环境湿度 实时监测 

分 类 号：X837[环境科学与工程—环境工程]