500 kV变电站无人机巡检作业安全距离  

Safe Distance of Inspection Operation by Unmanned Aerial Vehicles in 500 kV Substation

作　　者：蔡焕青 付晶 杨宁 邵瑰玮 文志科 谈家英 CAI Huanqing;FU Jing;YANG Ning;SHAO Guiwei;WEN Zhike;TAN Jiaying(National Engineering Research Center for UHV Engineering Technology,Wuhan 430074,China;State Key Laboratory of Power Grid Environmental Protection,Wuhan 430074,China;China Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]特高压工程技术国家工程研究中心,武汉430074 [2]电网环境保护全国重点实验室,武汉430074 [3]中国电力科学研究院有限公司,武汉430074

出　　处：《高电压技术》2024年第7期3199-3208,共10页High Voltage Engineering

基　　金：中国电力科学研究院有限公司创新基金(变电站多旋翼无人机安全作业防护技术及主动防御装置研究)。

摘　　要：无人机在变电站巡检中应用日益广泛,由于变电设备众多且布置密集,强电磁环境可能会损坏无人机,明确无人机与带电体间的作业安全距离是亟待解决的关键问题。为此,首先开展了无人机电机悬浮体与导线的模拟放电试验,建立了真型无人机与500 kV站内强电场区设备的3维仿真模型,计算分析无人机附近电场分布特征,以研究分析作业安全距离。结果表明,无人机与导线电晕放电存在相互影响,无人机受到影响的临界起晕场强为300 kV/m,无人机存在畸变的电场值为原值的2~3倍。研究得到了电场控制条件下的作业安全距离,其中无人机对500 kV管母线、主变500 kV侧套管巡检的最小作业安全距离分别为2.2 m、2.1 m,研究结果可为变电站无人机巡检安全开展提供技术依据。Unmanned aerial vehicles(UAVs)are increasingly widely used in the inspection of substations.Due to the large number of substation equipment and dense layout,strong electromagnetic environment may damage UAVs.Defining the safe distance between UAVs and electrified body is the key problem to be solved.For this reason,firstly,the simulated discharge test of UAV motor suspension and conductor is carried out,and the 3D simulation model of real UAV and equipment in the strong electric field area of 500 kV station is established.The electric field distribution characteristics near the UAV are calculated and analyzed to study and analyze the safe operation distance.The results show that there is interaction between the UAV and the conductor corona discharge.The critical corona field strength affected by the UAV is 300 kV/m,and the distortion electric field value of the UAV is 2~3 times the original value.The operation safety distance under the electric field control condition is obtained.The minimum operation safety distances for UAV to inspection 500 kV pipe busbar and 500 kV side bushing of main transformer are 2.2 m and 2.1 m,respectively,which provides technical basis for the safe operation of the UAV inspection in the substation.

关 键 词：500 kV变电站 无人机巡检 模拟放电试验 电场仿真 管母线 主变 最小作业安全距离 

分 类 号：TM63[电气工程—电力系统及自动化]