过江架空超高压线路在线取能灯光指示装置

Development of Online-energy-acquirement Light Indicators of EHV Transmission Lines over Rivers

为应对过江架空高压电力线路对过往船只的潜在安全威胁,可在架空高压电力线路上安装灯光指示,以装置防止船只撞击过江电缆事故的发生.本装置采用感应方式从500kV超高压电力线路中在线获取能量,为高亮度、高能效的LED灯组供电.以超级电容为储能方式,避免电力线路负荷大范围波动影响红光LED灯组的能见度.采用初始磁导率高的软磁材料制作开口铁心.独特结构设计和多重保护措施,使安装后的装置经受了线路大电流冲击,表现出良好的安全性,且重量轻,体积小,安装方便.

To eliminate the potential security risks to passing ships from the overhead high voltage lines,light indicators need to be installed on the high voltage transmission lines to prevent ships from striking cables over rivers.The proposed light indicators acquires energy directly from 500kV EHV transmission lines by induction to supply the high-intensity and high-energy efficiency LED sets.By super capacitors storing energy,the light indicators can avoid wide-range oscillations of line loads to influence red light LED＇s visibility.The unique structure design,such as open iron cores made of high initial permeability soft magnetic materials,and multi-protection methods lead the installed light indicators endure heavy surge current impacts from the bus with good security performance and many good characteristics,such as light,small and easy to install.