空间谱估计测向算法计算高压直流输电线路对短波无线电测向台站无源干扰影响的研究  

Study on Calculation of Passive Interference of HVDC Transmission Line to Short-wave Radio Direction Station With Spatial Spectral Estimation Direction Finding Algorithm

作　　者：邹军[1] 吴桂芳 蒋陶宁 汪芙平[1] 谭瑞娟 ZOU Jun;WU Guifang;JIANG Taoning;WANG Fuping;TAN Ruijuan(State Key Lab of Control and Simulation of Power Systems and Generation Equipment(Dept of Electrical Engineering,Tsinghua University),Haidian District,Beijing 100084,China;China Electric Power Research Institute,Haidian District,Beijing 100192,China;State Nuclear Electric Power Planning Design and Research Institute,Haidian District,Beijing 100095,China)

机构地区：[1]电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京市海淀区100084 [2]中国电力科学研究院有限公司,北京市海淀区100192 [3]国核电力规划设计研究院有限公司,北京市海淀区100095

出　　处：《电网技术》2020年第4期1582-1588,共7页Power System Technology

基　　金：国家自然科学基金资助项目(51577103)。

摘　　要：高压直流线路对短波无线电测向台站的电磁影响是电力线路设计和建设中一个必须考虑的因素。提出了一种矩量法和多重信号分类方法(MUSIC)相结合的计算步骤,即,采用矩量法计算高压直流输电的电磁再辐射场,然后采用MUSIC方法计算电波的来波方向。通过现场试验,验证了文中计算方法的有效性。针对典型高压交流输电线路进行数值仿真,数值结果表明,在MUSIC测向体系下,高压直流线路和无线电测向台站的接近距离远小于相关规程确定的防护距离。论文方法为现代测向体制下,高压直流电力线路和无线电测向台站之间的电磁兼容问题的评估提供了解决方案。The electromagnetic influence of HVDC lines on short-wave radio direction stations is a factor that must be considered in design and construction of power lines. In this paper, a calculation step combining moment method and multiple signal classification method(MUSIC) is proposed, that is, the electromagnetic radiation field of HVDC transmission is calculated using the moment method, and then the MUSIC method is used to calculate the coming radio wave direction. Validity of the proposed calculation method is verified with field test. Numerical simulation of typical HVDC transmission lines shows that the proximity distance between HVDC lines and radio direction stations is much smaller than that determined with relevant procedures under MUSIC direction finding system. The proposed method provides a solution for evaluation of electromagnetic compatibility between HVDC power lines and radio direction stations under modern direction finding system.

关 键 词：高压直流线路 无源干扰 矩量法 多重信号分类 

分 类 号：TM721[电气工程—电力系统及自动化]