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电网技术  2012 

三维激光扫描技术在输电线路差异化防雷治理中的应用

, PP. 195-200

Keywords: 三维激光扫描,输电线路,差异化防雷,风险评估,绕击,全档距,地形地貌,杆塔结构

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Abstract:

输电线路差异化防雷评估技术作为掌握输电线路防雷性能、明确防雷重点的有效方法,已得到各级运行管理部门的认可。地形地貌和杆塔结构作为线路绕击防雷性能的影响因素,是防雷评估时需获取的重要基础参数。为研究获取全档距地形地貌参数和杆塔结构参数的技术,以及将这些参数应用于防雷性能评估的方法,提出基于三维激光扫描数据建立线路走廊三维模型,根据此模型提取差异化防雷评估所需的全档距地形地貌参数和杆塔结构参数,进而进行全档距绕击防雷性能评估。经与山区典型220kV线路比对,评估结果与实际雷击故障记录吻合良好,充分说明了三维激光扫描技术应用于输电线路差异化防雷治理的有效性。

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