宁夏西北山区输电线路风害治理措施研究  

Study of countermeasures against wind damage on transmission lines in northwest mountainous areas of Ningxia

作　　者：徐兆国 张振华 董慎学 XU Zhaoguo;ZHANG Zhenhua;DONG Shenxue(State Grid Ningxia Shizuishan Power Supply Company,Shizuishan Ningxia 753000,China)

机构地区：[1]国网宁夏电力有限公司石嘴山供电公司,宁夏石嘴山753000

出　　处：《宁夏电力》2021年第6期25-30,共6页Ningxia Electric Power

摘　　要：宁夏贺兰山沿线由于特殊的地形地貌和气候条件,局部强风时常发生,造成输电线路风害频发。本文以宁夏石嘴山地区为例,根据该地区风区风力等级、环境特征参数,结合输电线路风害故障统计结果,分析不同风害故障类型特征,提出线路设计、验收和运行阶段的风害治理措施。运行效果证明本文所提各类风害治理措施能显著降低输电线路风偏闪络故障及杆塔损坏发生的概率,为输电线路安全稳定运行提供借鉴。Due to the special topography and climate conditions in mountainous areas northwest of Ningxia,there occur local catastrophic strong winds that mostly cause wind-induced flashover of transmission lines.Based on wind force scale,environmental features and other parameters in the wind zone as well as operation and maintenance of transmission lines,this paper instance Shizuishan of Ningxia to propose and apply countermeasures against wind damage.The results show that the proposed countermeasures can significantly reduce the wind-induced flashover fault and tower damage of transmission lines,improve the safe and stable operation level of transmission lines,and can be promoted and applied.

关 键 词：输电线路 风偏闪络 风害治理 

分 类 号：TM755[电气工程—电力系统及自动化]