Development in Researches on Reradiation Interference from UHV Power Lines  

作　　者：TANG Bo ZHAO Zhibin ZHANG Jiangong LIU Xingfa CHEN Bin 

机构地区：[1]College of Electronic Engineering & New Energy, China Three Gorges University, Yichang 443002, China [2]College of Electricial and Electronic, North China Electric Power University, Baoding 071003, China [3]China Electric Power Research Institute, Wuhan 430074, China)

出　　处：《高电压技术》2013年第10期2372-2382,共11页High Voltage Engineering

基　　金：Project supported by National Natural Science Foundation of China （51307098）, Hubei Provincial Natural Science Foundation of China （2012FFB03701）.

摘　　要：Reradiation interference(RRI) from ultra high voltage(UHV) power lines has become a hotspot for researches in electromagnetic(EM) interference between UHV power grids and adjacent radio stations.The mechanism of RRI,numerical simulations,methods of protecting distance calculation,and resonance characteristics of RRI are reviewed in this paper using results of works reported by IEEE and Chinese publications.We conclude in this review that RRI at short and medium wavelengths can be simulated using method of moment(MoM) and two commonly used models,the wire model and the surface model,which have different applicable conditions.We indicate that the accurate simulation of RRI at higher frequencies using uniform geometrical theory of diffraction is still beyond our capability because it requires studies of the relative simulation methods.We also suggest that further researches of the mechanism of RRI and the prediction of resonance frequencies above 1.7 MHz are necessary for dealing with the interference between the existing power lines and radio stations because resonance frequencies proposed by IEEE are less than 1.7 MHz.Reradiation interference （RRI） from ultra high voltage （UHV） power lines has become a hotspot for researches in electromag- netic （EM） interference between UHV power grids and adjacent radio stations. The mechanism of RRI, numerical simulations, methods of protecting distance calculation, and resonance characteristics of RRI are reviewed in this paper using results of works reported by IEEE and Chinese publications. We conclude in this review that RRI at short and medium wavelengths can be simulated using method of moment （MoM） and two commonly used models, the wire model and the surface model, which have different applicable conditions. We indicate that the accurate simulation of RRI at higher frequencies using uniform geometrical theory of diffraction is still beyond our capability be- cause it requires studies of the relative simulation methods. We also suggest that further researches of the mechanism of RRI and the prediction of resonance frequencies above 1.7 MHz are necessary for dealing with the interference between the existing power lines and ra- dio stations because resonance frequencies proposed by IEEE are less than 1.7 MHz. Key words： UHV power lines; reradiation interference; numerical simulations; wire model; surface model; resonance characteristics; re- sonance frequencies

关 键 词：特高压输电线路 辐射干扰 数值模拟 共振频率 电力线路 IEEE 共振特性 表面模型 

分 类 号：TN86[电子电信—信息与通信工程] TM726.1[电气工程—电力系统及自动化]