Results 11 to 20 of about 893 (203)
Guangtongxin yanjiu, 2017 为了实现每基杆塔的光纤定位,从而更精准地实时监测光纤架空地线复合缆的运行状态,提出了一种基于分布式光纤传感技术的杆塔光纤定位方法。通过对实时监测频移数据进行分析,并结合光纤架空地线复合缆自身结构和架设特点发现,在杆塔连接位置由于金具等的连接原因,使得光纤频移变化量较档距中间更小,因而可以从差异化出发识别杆塔的位置,实现输电线路杆塔精确定位。最后通过与线路资料进行对比,验证了定位方式的可行性。
黄良 +6 more
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Research on Lightning Performance and Protective Measures of ±800 kV UHVDC Power Transmission Line [PDF]
, 2023 [Introduction] Lightning strike is the primary cause of failures of ±800 kV UHVDC power transmission lines, and the lightning protection assessment of power transmission lines is critical to the safe and stable operation of the system.
Youjun GONG, Zhiwen HE, Ziwei YAN
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Power-Line Extraction Method for UAV Point Cloud Based on Region Growing Algorithm [PDF]
, 2023 [Introduction] Since the power line has the characteristics of long transmission distance and a complex spatial environment, the UAV LiDAR point cloud technology can completely and efficiently obtain the geometric information of the power line and its ...
Wei WU, Xingyi LI, Zhiyao ZHAO
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Application of Magnetic Coupling Resonance Wireless Power Transfer in Power System [PDF]
, 2022 Wireless power transfer (WPT) can transmit electric wirelessly. It performs better under some paticular circumstances compared with the traditonal transmission mode.
HE Hao +4 more
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Comparative Analysis of Slenderness Ratio Calculation Methods of Cross Bracings for Towers Between China and EU Overhead Transmission Line Standards [PDF]
, 2023 [Introduction] This paper aims to effectively avoid the design quality problems caused by the difference between domestic and foreign engineering design specifications. The study makes comparative analysis of slenderness ratio of cross bracings for angle
Hongliang GUO +3 more
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Fast Analysis Method of Overhead Line Tree Barrier Based on Vectorized Power Line [PDF]
, 2023 [Introduction] With the continuous and rapid growth of the number of tree barrier inspections, visible light aerial photogrammetry has become the most important inspection method for hidden dangers of tree barriers in transmission lines of power supply ...
Junda HUANG, Rouna XU, Siyao TANG
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Dianci bileiqi, 2013 输电线路沿线走廊雷电参数的统计分析方法主要为"网格法",即采用合理的网格划分来减少雷电参数的统计工作量、提高分析效率,主要应用于多杆塔、大档距的长输电线路中,但对于杆塔少、档距小的较短输电线路,各网格所统计的平均值并不能真实反映各基杆塔周围实际雷电活动水平。因此,提出了以杆塔为单位、以2 km为半径统计各基杆塔地闪密度值的雷电参数统计方法-"杆塔圆法",并将其与"网格法"统计值进行对比,分析二者精确度。同时,深入研究了以此为基础的高层应用,如雷击故障与地闪密度相关性分析、差异化防雷评估 ...
岳平 +6 more
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Discharge characteristics and discharge simulation model of long air gaps containing a floating conductor [PDF]
, 2022 Long air gaps containing a floating conductor are common insulation types in power grids. During the transmission line live-line work, the process of lineman entering the transmission line air gap constitutes a live-line work combined air gap, which is a
Gao, Jiachen <1995>
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Research on lightning transient distribution characteristics of cable-stayed bridges [PDF]
, 2023 Bridges are usually located at the junction of land and water, where the surrounding area is open terrain, making them to be easily damaged by lightning strikes.
Dajun XU +4 more
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全球能源互联网, 2023 电力杆塔与5G站址开展共享共建，对提高资源利用效率、降低电信企业成本具有现实意义。构建电力杆塔与5G站址规划以及典型应用场景的规模化匹配方法，对于优化提升电力杆塔共享匹配度，摸底电力杆塔资源共享潜力，做好电力杆塔共享资源大范围推广后的统筹优化至关重要。针对电力杆塔和5G站址，构建了基于站距和站高的规模化匹配方法，以及考虑技术、政策和商业约束等情景的匹配度测算方法，并以福州长乐全域为例进行实证分析。结果显示，不同场景下电力杆塔和5G站址的匹配度差别较大，市人口密集区、工业园区匹配度可达50 ...
王成洁 +6 more
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