GPS定位技术下集中式光伏电站无人机巡检安全距离确定方法

Method for Determining the Safe Distance of Unmanned Aerial Vehicle Inspection in Centralized Photovoltaic Power Plant by GPS Positioning Technology

针对集中式光伏电站无人机(UAV)巡检时光伏电站自身电场对无人机巡航距离判断造成的影响问题,引入GPS定位技术,提出无人机巡检安全距离确定方法。利用GPS定位技术,定位无人机巡检过程中相关目标。结合有限元理论构建光伏电站有限元模型,获取无人机—导线之间间隙起始放电电压以及光伏电站的间隙放电时无人机的最大电场,并设定电场阈值,结合GPS定位结果与光伏电站的电力设备电场分布,获取安全巡检距离测量方程,实现无人机巡检安全距离的确定。实验结果表明,利用该方法开展无人机巡检安全距离确定时,测量精度高、效果好。

Aiming at the problem of the influence of the photovoltaic power plant own electric field on the judgment of the inspection distance of the unmanned aerial vehicle(UAV)during the UAV inspection,GPS positioning technology is introduced and a method to determine the safe distance of UAV inspection is proposed.GPS positioning technology is used to locate the relevant targets in the process of UAV inspection.The finite element model of photovoltaic power plant was built based on the finite element theory to obtain the initial discharge voltage of the gap between the UAV and the wire and the maximum electric field of the UAV during the gap discharge of the photovoltaic power plant,and the electric field threshold is set.The measurement equation of the safe inspection distance was obtained by combining the GPS positioning results and the electric field distribution of the power equipment of the photovoltaic power plant,so as to determine the safe inspection distance of the UAV.The experimental results show that the method has high precision and good effect when it is used to determine the safe distance of UAV inspection.