CAJ | 학술논문

有关UHV交流输电线路与无方向信标台电磁兼容方面的研究主要集中在防护距离的分析，对间距无法满足要求时的兼容问题研究较少。为此，从台站频谱参数入手，分析特高压交流输电线路有源干扰下无方向信标台的发射功率限值。首先介绍无方向信标台的工作原理及配置区域，然后分析UHV交流输电线路对台站的干扰机理，最后根据飞行航迹，以防护率为干扰判别依据，结合防护距离的研究，分别针对航路无方向信标台、近距无方向信标台和远距无方向信标台进行有效辐射功率的分析。结果表明，在给定条件下，对于航路和远距无方向信标台，有效辐射功率分别大于5.298 W、5.273 W时，机载无线电罗盘不受干扰；对于近距无方向信标台，与输电线路始终满足兼容的要求，无需分析限值。
유관UHV교류수전선로여무방향신표태전자겸용방면적연구주요집중재방호거리적분석，대간거무법만족요구시적겸용문제연구교소。위차，종태참빈보삼수입수，분석특고압교류수전선로유원간우하무방향신표태적발사공솔한치。수선개소무방향신표태적공작원리급배치구역，연후분석UHV교류수전선로대태참적간우궤리，최후근거비행항적，이방호솔위간우판별의거，결합방호거리적연구，분별침대항로무방향신표태、근거무방향신표태화원거무방향신표태진행유효복사공솔적분석。결과표명，재급정조건하，대우항로화원거무방향신표태，유효복사공솔분별대우5.298 W、5.273 W시，궤재무선전라반불수간우；대우근거무방향신표태，여수전선로시종만족겸용적요구，무수분석한치。
The EMC research between UHV AC transmission line and non-directional radio beacon mainly focused on the protection distance while the study of EMC is little when the protection distance cannot meet the requirements. Therefore, the non-directional radio beacon power limit under the condition of active interference caused by UHV AC transmission line is analyzed from the aspect of spectrum parameters. Firstly, the working principle and configuration area of non-directional radio beacon are introduced. Then the interference mechanism of non-directional radio beacon from UHV AC transmission line is analyzed. Finally, the effective radiated power (ERP) of route non-directional radio beacon, close non-directional radio beacon and distance non-directional radio beacon are analyzed according to the flight path and protection ratio in combination with protection distance research. The results show that under the given conditions, route non-directional radio beacon and distance non-directional radio beacon’s ERP should be greater than 5.298 W and 5.273 W respectively to keep wireless electronic compass from interference while close non-directional radio beacon and UHV AC transmission line always meet the requirements of compatibility which means that there is no need to study close non-directional radio beacon power limit.