架空输电线路交跨距离检查方法研究

Research on Cross Span Distance Inspection Method of Overhead Transmission Line

随着我国电力网络的不断发展,架空输电线路作为电力传输的主要组成部分,在电力的输送工作中起着重要的作用,电力运输环境的复杂多样性,对架空输电线路的交跨距离提出了较高的要求。因此,本文提出了架空输电线路交跨距离检查方法的研究。首先,针对不同的交叉跨越情况,检测交跨点的定位;其次,测量交跨输电线路导向与被跨越物之间的仰角,基于全站仪测量架空输电线路的净空交跨距离;最后,参数化换算净空交跨距离,获取观测档的导线变化量与导线弧垂变化量参数完成检查。实验证明,该方法检查的结果准确度较高,检查结果的误差率比传统方法更小。

With the continuous development of China’s power network, overhead transmission line, as the main part of power transmission, plays an important role in power transmission. Due to the complexity and diversity of power transportation environment,higher requirements are put forward for the cross span distance of overhead transmission line. Based on this, the research on the cross span distance inspection method of overhead transmission line is proposed. Detect the location of crossing points according to different crossing conditions;Measure the elevation angle between the guide of cross span transmission line and the crossed object,and measure the clearance cross span distance of overhead transmission line based on total station;The clearance crossing distance is converted parametrically, and the parameters of conductor variation and conductor sag variation of the observation gear are obtained to complete the inspection. Experiments show that this method has higher accuracy and higher error rate than the traditional method.