基于电磁场计算的输电线路无人机巡检安全飞行区域确定方法

Determination Method of Safe Flight Area for UAV Inspection for Transmission Line Based on the Electromagnetic Field Calculation

随着电网规模的不断扩大,无人机作为一种安全稳定高效的设备已逐步被应用于对输电线路的巡检中。同时,如何提升巡检作业的可靠性,保障无人机及线路的安全,成为重要的研究课题。首先利用Ansoft Maxwell电磁场仿真软件计算输电线路周围电磁场强度;进而以某中型电力巡线无人机为例,分析其可承受电磁场强度的范围;并在此基础上提出无人机巡检安全飞行距离确定方法,给出安全距离计算公式。利用该公式计算出某中型电力巡线无人机对500 k V交流输电线路巡检的安全距离。输电线路无人机巡检安全飞行区域的确定能够提高无人机电力巡线作业的可靠性和安全性,对保证人身、电网和设备的安全具有重要意义。

With the continuous expansion of the grid,the unmanned aerial vehicle（ UAV）, as a safe, stable and efficient equipment,has gradually been applied to the inspection of transmission lines.How to improve the reliability of the inspection,and ensure the safety of UAV and transmission lines has become an important research topic.First of all,the electromagnetic field intensity around transmission lines is calculated using the Ansoft Maxwell electromagnetic field simulation software.And then,taking a medium-sized UAV an example,the range of the sustainable electromagnetic field intensity is analyzed.On this basis,the method of determining the UAV flight safety area for transmission line inspection is put forward,and the safety distance formula is proposed.Using the formula,the safety distance of an UAV for a 500 k V AC transmission line inspection is calculated.The method can improve the reliability and security of transmission line inspection with UAV,and is of great significance to ensure the safety of person,devices and the grid.