天线对输变电工程无线电干扰测试的影响
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摘要
在进行云南—广东±800 kV直流输电工程调试阶段的无线电干扰测试过程中,发生杆状天线零部件损坏的情况。为找出造成天线设备损坏的影响因素,并保证监测数据的准确可靠性,对杆状天线和环形天线开展适用性理论分析和无线电干扰测量值与理论计算值对比分析两方面的研究。研究结果表明:在无线电干扰测试中杆状天线端部场强过大产生电晕放电是导致杆状天线的零部件损坏的根本原因,而环形天线的芯线和源天线相互独立,受外界的影响较小,测量比较准确,更适合用于输变电工程的无线电干扰测试。
In the process of radio interference test on Yunnan-Guangdong ±800 kV HVDC power transmission engineering during its commissioning stage,some parts of the rod antenna were damaged.In order to find out influencing factors causing damages of antenna equipment and ensure accuracy and reliability of monitoring data,this paper studies feasibilities of the rod antenna and the loop antenna in theory and comparatively analyzes radio interference measured values and theoretical calculation values.Research results indicate corona discharge due to overlarge end field intensity of the rod antenna in radio interference test is the primary cause for damages of parts of the rod antenna,while the core wire and source antenna of the loop antenna are in mutual independent which means the loop antenna is affected slightly by external factors and easy to be measured accurately,and more suitable for radio interference test on the power transmission engineering.
In the process of radio interference test on Yunnan-Guangdong ±800 kV HVDC power transmission engineering during its commissioning stage,some parts of the rod antenna were damaged.In order to find out influencing factors causing damages of antenna equipment and ensure accuracy and reliability of monitoring data,this paper studies feasibilities of the rod antenna and the loop antenna in theory and comparatively analyzes radio interference measured values and theoretical calculation values.Research results indicate corona discharge due to overlarge end field intensity of the rod antenna in radio interference test is the primary cause for damages of parts of the rod antenna,while the core wire and source antenna of the loop antenna are in mutual independent which means the loop antenna is affected slightly by external factors and easy to be measured accurately,and more suitable for radio interference test on the power transmission engineering.
引文
[1]陆家榆,鞠勇,邵方殷,等.±800 kV级直流工程电磁环境研究[R].北京:中国电力科学研究院,2007.
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[3]林秀钦,梁家盛,吴沃生.220 kV变电站电磁环境实测分析[J].电网技术,2008,32(2):85-87.LIN Xiuqin,LIANG Jiasheng,WU Wosheng,et a1.Analysis of actual measurement of electromagnetic environment of 220kV substations[J].Power System Technology,2008,32(2):85-87.
[4]薛海平,赵森林,卢亚军,等.特高压直流工程的融冰控制保护策略及试验分析[J].电力工程技术,2017,36(1):84-90.XUE Haiping,ZHAO Senlin,LU Yajun,et al.Analysis of control and protection strategy and test for de-icing mode in UHVDC project[J].Electric Power Engineering Teachnology,2017,36(1):84-90.
[5]刘世凯,赵健,宋晨光,等.特高压直流系统单极闭锁外特性建模及仿真研究[J].陕西电力,2017,45(2):59-64.LIU Shikai,ZHAO Jian,SONG Chenguang,et al.External characteristic modeling of UHVDC unipolar blocking and simulation[J].Shaanxi Electric Power,2017,45(2):59-64.
[6]刘文芳,闫继伟,谢贵强.高压架空输电线、变电站无线电干扰测量方法的探讨[J].计量技术,2008(10):20-22.LIU Wenfang,YAN Jiwei,XIE Guiqiang.Discussion on radio interference from high voltage overhead transmission line and substation measuring method[J].Measurement technology,2008(10):20-22.
[7]胡钋,任劼帅,孙国繁,等.自激振荡无线电能传输系统的同步调谐研究[J].智慧电力,2017,45(7):100-105.HU Po,REN Jieshuai,SUN Guofan,et al.Synchronous tuning of self-oscillating wireless power transfer system[J].Smart Power,2017,45(7):100-105.
[8]邓军,肖遥,楚金伟,等.±800 kV云广UHVDC输电线路无线电干扰测量与分析[J].安全与电磁兼容,2012(2):20-23.DENG Jun,XIAO Yao,CHU Jinwei,et a1.Measurement and analysis of the radio interference for±800 kV UHVDC transmission lines[J].Safety and EMC,2012(2):20-23.
[9]李敏,余占清,曾嵘,等.高海拔±800 kV直流输电线路电磁环境测量[J].南方电网技术,2011,5(1):42-45.LI Min,YU Zhanqing,ZENG Rong,et a1.Electromagnetic environment measurement of±800 kV DC transmission lines at high altitude[J].Southern Power System Technology,2011,5(1):42-45.
[10]GB/T7349—2002,高压架空送电线、变电站无线电干扰测量方法[S].
[11]GB15707—1995,高压交流架空送电线无线电干扰限值[S].
[12]HJ/T24—1998,500 kV超高压送变电工程电磁辐射环境影响评价技术规范[S].
[2]邬雄,万保权,蒋虹,等.±800 kV云广特高压直流输电线路电磁环境指标的研究[R].武汉:国网公司电力科学研究院,2005.
[3]林秀钦,梁家盛,吴沃生.220 kV变电站电磁环境实测分析[J].电网技术,2008,32(2):85-87.LIN Xiuqin,LIANG Jiasheng,WU Wosheng,et a1.Analysis of actual measurement of electromagnetic environment of 220kV substations[J].Power System Technology,2008,32(2):85-87.
[4]薛海平,赵森林,卢亚军,等.特高压直流工程的融冰控制保护策略及试验分析[J].电力工程技术,2017,36(1):84-90.XUE Haiping,ZHAO Senlin,LU Yajun,et al.Analysis of control and protection strategy and test for de-icing mode in UHVDC project[J].Electric Power Engineering Teachnology,2017,36(1):84-90.
[5]刘世凯,赵健,宋晨光,等.特高压直流系统单极闭锁外特性建模及仿真研究[J].陕西电力,2017,45(2):59-64.LIU Shikai,ZHAO Jian,SONG Chenguang,et al.External characteristic modeling of UHVDC unipolar blocking and simulation[J].Shaanxi Electric Power,2017,45(2):59-64.
[6]刘文芳,闫继伟,谢贵强.高压架空输电线、变电站无线电干扰测量方法的探讨[J].计量技术,2008(10):20-22.LIU Wenfang,YAN Jiwei,XIE Guiqiang.Discussion on radio interference from high voltage overhead transmission line and substation measuring method[J].Measurement technology,2008(10):20-22.
[7]胡钋,任劼帅,孙国繁,等.自激振荡无线电能传输系统的同步调谐研究[J].智慧电力,2017,45(7):100-105.HU Po,REN Jieshuai,SUN Guofan,et al.Synchronous tuning of self-oscillating wireless power transfer system[J].Smart Power,2017,45(7):100-105.
[8]邓军,肖遥,楚金伟,等.±800 kV云广UHVDC输电线路无线电干扰测量与分析[J].安全与电磁兼容,2012(2):20-23.DENG Jun,XIAO Yao,CHU Jinwei,et a1.Measurement and analysis of the radio interference for±800 kV UHVDC transmission lines[J].Safety and EMC,2012(2):20-23.
[9]李敏,余占清,曾嵘,等.高海拔±800 kV直流输电线路电磁环境测量[J].南方电网技术,2011,5(1):42-45.LI Min,YU Zhanqing,ZENG Rong,et a1.Electromagnetic environment measurement of±800 kV DC transmission lines at high altitude[J].Southern Power System Technology,2011,5(1):42-45.
[10]GB/T7349—2002,高压架空送电线、变电站无线电干扰测量方法[S].
[11]GB15707—1995,高压交流架空送电线无线电干扰限值[S].
[12]HJ/T24—1998,500 kV超高压送变电工程电磁辐射环境影响评价技术规范[S].