多回输电线路对短波无线电测向台无源干扰防护距离计算分析
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摘要
输电线路对小孔径短波无线电测向台无源干扰防护距离计算是工程设计中的关键问题。针对短波测向台的工作频率,分析了单基铁塔高度为λ/4和3λ/4时对短波测向台无源干扰的影响;根据测向设备总的测向误差不得超过1°的限值,推导了多回输电线路对短波测向台无源干扰防护距离的计算方法。该方法对解决输电线路与短波测向台电磁兼容问题,提出的防护措施更加合理、全面、严谨。为《直流架空输电线路对无线电台电磁干扰防护设计规范》行业新标准的制订和工程设计提供了依据。
Calculation of the passive interference protection distance from transmission lines to small-bore short-wave radio direction-finding stations is critical for engineering design.Based on the operating frequency of the short-wave direction-finding stations,this paper analyzes the effects of the passive interference of single-base tower’s height on the short-wave direction-finding stations when the resonant frequencies are λ/4 and 3λ/4 respectively.Then it further concludes a computing method for calculating the passive interference protection distance from multi-circuit transmission lines to the short-wave direction-finding stations on the condition that the total error of direction-finding equipment is less than 1 degree.This approach not only offers more rational,complete and precise protective measures for the electromagnetic compatible problems between transmission lines and short-wave direction-finding stations,but also provides a reference for future engineering design of transmission lines and a basis for preparation of the new industrial standard-Code for Protective Design of Radio Stations against Effect from DC Overhead Transmissiion Line.
Calculation of the passive interference protection distance from transmission lines to small-bore short-wave radio direction-finding stations is critical for engineering design.Based on the operating frequency of the short-wave direction-finding stations,this paper analyzes the effects of the passive interference of single-base tower’s height on the short-wave direction-finding stations when the resonant frequencies are λ/4 and 3λ/4 respectively.Then it further concludes a computing method for calculating the passive interference protection distance from multi-circuit transmission lines to the short-wave direction-finding stations on the condition that the total error of direction-finding equipment is less than 1 degree.This approach not only offers more rational,complete and precise protective measures for the electromagnetic compatible problems between transmission lines and short-wave direction-finding stations,but also provides a reference for future engineering design of transmission lines and a basis for preparation of the new industrial standard-Code for Protective Design of Radio Stations against Effect from DC Overhead Transmissiion Line.
引文
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[2]蒋陶宁,邹军,马信山,等.输电线路对短波无线电测向台(站)的无源干扰[J].电网技术,2012,36(5):29-35.JIANG Taoning,ZOU Jun,MA Xinshan,et al.Passive interference to short-wave direction-finding stations caused by transmission lines[J].Power System Technology,2012,36(5):29-35.
[3]赵鹏,朱锦生,韩燕明,等.输电线路对短波无线电测向台(站)的保护间距[J].电网技术,2012,36(5):22-38.ZHAO Peng,ZHU Jinsheng,HAN Yanming,et al.Protection distance for short wave frequency direction-finding station to reduce passive interference caused by transmission lines[J].Power System Technology,2012,36(5):22-38.
[4]朱锦生,陈作海.高压架空输电线路对短波无线电测向、收信台(站)的影响及保护间距计算和试验[J].中国电力,1991(8):50-53.
[5]唐波,孙睿,赵晓明,等.甚高频段特高压输电线路无源干扰求解[J].中国电力,2016,49(10):90-93.TANG Bo,SUN Rui,ZHAO Xiaoming,et al.Calculation of reradation interference in ultra high frequency from UHV power lines based on IPO method[J].Electric Power,2016,49(10):90-93.
[6]赵志斌,干喆渊,张小武,等.短波频段内UHV输电线路对无线电台站的无源干扰[J].高电压技术,2009,35(8):1818-1823.ZHAO Zhibin,GAN Zheyuan,ZHANG Xiaowu,et al.Passive interference to radio station caused by UHV AC transmission line in short wave frequency[J].High Voltage Technology,2009,35(8):1818-1823.
[7]唐明贵,余志飞,李其生.±1 100 k V准东至华东特高压直流输电线路对宛黄短波无线电测向台的电磁干扰影响分析[C]//高海拨地区输变电工程电磁环境专题研讨会论文集.西宁:中国电机工程学会电磁干扰专业委员会,2015:96-101.
[8]刘兴发,干喆渊,张小武,等.交流特高压输电线路对航空无线电导航台站的有源干扰计算[J].电网技术,2008,32(2):6-8.LIU Xingfa,GAN Zheyuan,ZHANG Xiaowu,et al.Calculation of active interference in aeronautical radionavigation station caused by UHVAC transmission line[J].Power System Technology,2008,32(2):6-8.
[9]王琦,赵杰,赵志斌,等.短波频段内±800 k V直流输电线路对无线电台站的无源干扰[C]//2008年中国电机工程学会年会论文集.西安:中国电机工程学会,2008.
[10]涂奔,王英翔,郑柳刚,等.高压架空输电线路对短波监测站无源干扰的实证研究,[J].中国无线电,2011(11):78-81,90.
[11]王英翔,涂奔,郑柳刚,等.高压架空输电线路对短波监测站有源干扰的实证研究,[J].中国无线电,2011(11):82-85.
[12]干喆渊,张小武,张广洲,等.特高压输电线路对调幅广播台站的无源干扰[J].电网技术,2008,32(2):6-12.GAN Zheyuan,ZHANG Xiaowu,ZHANG Guangzhou,et al.Passive interference in receiving station of AM broadcasting caused by UHVAC transmission lines[J].Power System Technology,2008,32(2):6-12.
[13]短波无线电收信台(站)及测向台(站)电磁环境要求:GB13614-2012[S].北京:中国家标准准出版社,2012.
[14]交流高压架空送电线路对短波无线电测向台(站)和收信台(站)保护距离的计算规程:CECS 66:94[S].1994.
[15]交流高压架空输电线路对短波无线电测向台(站)保护间距要求(报批稿)[S].2015.
[16]朱锦生.高压架空输电线对短波无线电测向、收信台(站)的影响[C]//电磁干扰学术会议论文集.珠海:中国电机工程学会无线电干扰专委会,2008:1-17.
[17]崔鼎新,赵鹏,瞿雪弟.特高压直流输电线路对无线电台(站)电磁干扰影响的研究报告[R].北京:中国电力科学研究院,2010.
[18]崔鼎新.输电线路与短波无线电测向台(站)防护间距的确定方法和解决措施[C]//输变电工程电磁环境及电磁影响学术会议论文集.青岛:中国电机工程学会无线电干扰专委会,2011:3-8.
[19]吴苗,朱涛,李方能,等.无线电导航原理及应用[M].北京:国防工业出版社,2008.
[20]山东电力工程咨询院,西北电力设计院有限公司.直流架空输电线路对无线电台干扰影响及防护分析报告[R].济南:山东电力工程咨询院,2015.