山东电网高压直流输电线路电磁环境测量分析  

Electromagnetic environment measurement and analysis of HVDC transmission lines in Shandong power grid

作　　者：姜雨泽 刘士强 谢连科 臧玉魏 李守正 李杰[2] Jiang Yuze;Liu Shiqiang;Xie Lianke;Zang Yuwei;Li Shouzheng;Li Jie(Electric Power Research Institute of State Grid Shandong Electric Power Company,Ji’nan 250003,China;School of Electrical Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China)

机构地区：[1]国网山东省电力公司电力科学研究院,济南250003 [2]大连理工大学电气工程学院,辽宁大连116024

出　　处：《电测与仪表》2021年第10期125-132,共8页Electrical Measurement & Instrumentation

基　　金：国网山东省电力公司科技项目(52062618001M)。

摘　　要：高压直流输电线路电晕放电产生的空间电荷对周围电磁环境有很大影响。为了评估山东电网高压直流输电线路的运行状况,利用STT-HDSW电磁环境检测装置和Bruel&Kj■r 2240高精度声级计实地测量了省内±660 kV宁东-山东和±800 kV锡盟-泰州、扎鲁特-青州高压直流输电线路在不同杆塔组合下的地面合成场强、离子流密度和可听噪声,并与计算值进行对比,分析了线路的放电特性。结果表明:线路地面合成场强、离子流密度和可听噪声均满足国家标准要求的限值,减少这些数值的根本途径是适当增加导线的对地高度、子导线线径和分裂数。研究结果可为山东电网高压直流输电工程的电磁环境评价提供依据。The space charge generated by corona discharge in HVDC transmission lines has a great influence on the surrounding electromagnetic environment.In order to evaluate the operation status of HVDC transmission lines in Shandong power grid,the ground level composite field strength,ion current density and audible noise of ±660 kV Ningdong-Shandong and ±800 kV Ximeng-Taizhou and Zhalute-Qingzhou HVDC transmission lines under different tower combinations are measured on the spot by the STT-HDSW electromagnetic environment detecting device and the Bruel&Kj■r 2240 high precise sound level meter,and the results are compared with the calculated values.The discharge characteristics of the transmission lines are analyzed.The results show that the composite field strength,ion current density and audible noise of the transmission lines meet the limit values of the national standard.The fundamental way to reduce these values is to increase the height of the transmission lines from the ground,the wire diameter of the sub-conductors and the number of splits properly.The research results can provide the basis for electromagnetic environment evaluation of HVDC transmission project in Shandong power grid.

关 键 词：高压直流 电磁环境 合成场强 离子流密度 可听噪声 

分 类 号：TM932[电气工程—电力电子与电力传动]