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.Defin-ing 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 characteris-tics 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 dis-tance 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 tech-nical 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
Key words
500 kV substation/UAV inspection/simulated discharge test/electric field simulation/pipe busbar/main transformer/minimum working safety distance
维普
万方数据