110kV双回输电线路复合材料杆塔防雷优化设计研究

Research on the Optimum Design of 110kV Double Circuit Transmission Line Composite Material in Lightning Protection

复合材料杆塔具有强度高、耐腐蚀、耐疲劳、绝缘性能好等优点,已在工程中得到初步应用。但目前在复合材料杆塔雷电防护方面研究较少。为研究复合材料杆塔防雷性能及其优化设计,在ATP软件中建立了110k V双回输电线路复合材料杆塔仿真模型,研究分析了横担长度、上下相间距、杆塔呼高及地线横担长度等不同结构参数组合杆塔耐雷水平和雷击跳闸率的影响,并提出了110k V双回输电线路复合材料杆塔的防雷优化设计方案。

With high strength, corrosion resistance and great insulation properties, the composite materials tower has been used in the electrical engineering. This paper focuses on the lighting withstand level of the composite material towers. Pa-rameters, such as the cross arm length, the layer space, the tower height and the cross arm length of ground wire, have a ma-jor impact on the lightning protection performance. In order to optimize the parameters of the tower, this paper proposes the model of composite material tower in 110kV double circuit transmission line in ATP. Based on the comparison of the light-ing withstand and the lighting trip-out rate under different combinations of structure parameters, the optimal combination of parameters can be obtained finally.