交叉跨越线路电气安全间隙虚拟仿真分析  

Virtual simulation analysis of electrical safety gap for crossover transmission lines

作　　者：马海鹏 王学平 付红安 陈庆昊 刘鹏飞 MA Haipeng;WANG Xueping;FU Hong’an;CHEN Qinghao;LIU Pengfei(Ningxia Ningdian Electric Power Design Company Limited,Yinchuan Ningxia 750000,China;Department of Mechanical Engineering,North China Electric Power University,Baoding Hebei 071003,China)

机构地区：[1]宁夏宁电电力设计有限公司,银川750000 [2]华北电力大学机械工程系,河北保定071003

出　　处：《计算机应用》2024年第S2期201-205,共5页journal of Computer Applications

基　　金：国网宁夏有限公司科技项目(SGTYHT/19-JS-215)。

摘　　要：随着架空输电线路规模的扩大,各种大容量、超高压、长距离输电线路区段越来越多,导致输电线路交叉跨越现象越来越普遍,交叉跨越线路的电气安全间隙成了影响电网线路安全的重要因素。因此,基于悬链线模型构建三维空间中架空导线空间位形的通用表达式,并采用关键节段法求解线路中的最小电气间隙数值。然后,结合Unity3D引擎与最小间隙计算程序进行虚拟仿真实验,通过杆塔和导线模型在三维空间中展示不同参数设置下的交叉跨越区段布局效果以及线路发生闪络故障的位置,并基于电气间隙虚拟仿真实验,求解不同线路参数下的最小间隙。仿真实验结果表明,线路交叉角和线路覆冰对线路最小间隙的影响显著,验证了关键节段法和虚拟实验的有效性。With the expansion of overhead transmission lines,there has been an increasing number of high-capacity,extra-high voltage,and long-distance transmission line sections,making crossover transmission lines a more common occurrence.The electrical safety gap of crossover lines has become a critical factor affecting the safety of power grid lines.Therefore,a general expression for the spatial configuration of overhead conductors in three-dimensional space was constructed on the basis of a catenary model,and the critical segment method was employed to calculate the minimum electrical gap value within the lines.Then,by integrating the Unity3D engine with the minimum gap calculation program,virtual simulation was conducted,the layout effects of crossover sections under different parameter settings and the locations of flashover faults in the lines were demonstrated by using tower and conductor models in three-dimensional space,and based on the virtual simulation of electrical gap,the minimum gaps under different line parameters were solved.Simulation results indicate that the line crossover angle and the line icing have significant influence on the minimum gap of the lines,validating the effectiveness of the critical segment method and virtual experiments.

关 键 词：交叉跨越输电线路 电气安全间隙 关键节段法 UNITY3D 虚拟仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]