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 areλ/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.
作者
迟兴和
魏德军
张坤
田连博
李世鹏
张勇
CHI Xinghe;WEI Dejun;ZHANG Kun;TIAN Lianbo;LI Shipeng;ZHANG Yong(Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan 250013,China;Southwest Electric Power Design Institute Co.,Ltd.,Chengdu 610021,China;State Grid Yantai Power Supply Company,Yantai 264000,China)
出处
《中国电力》
CSCD
北大核心
2018年第7期49-53,107,共6页
Electric Power
基金
国家能源局行业标准制(修)订项目(20140613)~~
关键词
输电线路
测向台
无源干扰
测向误差限值
防护距离
transmission lines
direction-finding stations
passive interference
direction-finding error limit
protective distance
