柴拉直流输电线路防鸟害措施研究

摘要:

柴拉直流输电线路自投运以来，多次发生鸟害引起的绝缘闪络故障，已严重影响线路的安全稳定运行。通过 对柴拉直流鸟害故障数据的综合分析，以及现有防鸟害措施在柴拉直流线路上的实施效果; 并结合鸟粪闪络特性模 拟试验研究成果，对柴拉直流输电线路绝缘间隙进行优化研究。同时提出了柴拉直流防治鸟害措施的建议。

Abstract:

There are many insulation flashovers caused by bird hazard since DC transmission line from Qaidam to Lhas being put into operation，which has seriously affected the safe and stable operation of the line． Through a comprehensive analysis of the fault data caused by bird hazard and the implementation results of the existing anti － bird measures in DC line from Qaidam to Lhas，and combined with the simulation experiment analysis of flashovers initiated by bird excretion，increasing the conductors in live line end and the plane minimum distance under fittings and the cross arm can effectively reduce the flashover probability initiated by bird excretion． The optimization for insulating clearance of DC transmission line from Qaidam to Lhas is carried out，and the reasonable suggestions for bird hazard control measures are proposed．