气象条件对电力架空环境量子信号的影响试验

Experimental Study on the Influence of Meteorological Conditions on the Quantum Signals of Overhead Power Environment

由于电力架空线路会受到外界各类天气条件的影响,天气对量子信号有不同于公网通信线路的影响,文章试验旨在检测不同编码技术的量子密钥分发(Quantum Key Distribution,QKD)系统通过电力架空光纤复合架空地线(Optical Fiber Composite Overhead Ground Wire,OPGW)光缆时,受微风振动、舞动、各类气象条件、线路覆冰等自然环境条件下的成码稳定性及其量子态受影响程度,通过2类室外环境的实地测试,表明相位编码QKD为最适合电力通信线路的量子保密通信技术,能够为量子信号在电力通信网络中传输时的稳定性作定性分析,最后给出了量子QKD技术在架空线路环境下大风、覆冰等气象条件下的性能劣化指标。

Due to the influence of various external weather conditions,power overhead lines have different effects on quantum signals than that of public network communication lines.This test is to detect the stability of the QKD system of various encoding technologies and its quantum states under natural environmental conditions such as breeze vibration,galloping,various meteorological conditions,and line icing when passing the overhead OPGW.Through the field tests in two kinds of outdoor environments show the phase-coded QKD is given as the most suitable quantum security communication technology for power communication lines.It qualitatively analyzes the stability of quantum signals when they are transmitted through power communication networks.