The fast-growing economy brings more super long-distance power lines with ultrahigh pressure. Widely spotted at remote city towns, located at complex terrains, power lines and towers are longtime exposed to outside adverse natural conditions. Continuous mechanical strain, lighting flashover, material aging and human influence will cause tower collapse, broken strand, abrasion, stress and so on, which requires timely repair or replacement. Still, unexpected situations must be timely settled, such as electrical insulator is damaged by thunderstruck, power line discharge happens because of tree growth, the tower is stolen and so on. Therefore, it is necessary to make regular inspection on power lines for a fast learning and mastering about the power line operation situation, its surrounding environment and the change of power line protection area, in order to timely discover and prevent accidents, and ensure a safety power supply.
Traditional human inspection requires longer time, higher cost with bigger difficulty and more risks because of heavy work and arduous conditions, especially the inspection in mountainous areas and across the great river, the night inspection and the inspection under natural disaster like ice disaster, flood, earthquake and so on.
UAV Typical Use Case in Power Industry
1. Line patrol
Besides the regular inspection and special inspection, the drone can be used for power grid post-disaster fault inspection. When the road is blocked by disaster with human inspection inaccessible, the drone plays an irreplaceable role in power line inspection by offering accurate tower and failure points position with wider view angle, avoiding blind zone. Drone power line maintenance and inspection is 40 times higher efficient than traditional manual patrol by enabling many work fast finished under fully charged situation. During the inspection process, the foreign matters on the power line like the kite, balloon, plastic bags and so on can be cleared out by the drone as well.
2. Line Construction
The drone first fly along the route, releasing a piece of robust but light guide rope to every tower. Then the light guide rope can be used to pull the subsequent guide rope until a triple rope has been pulled through the well with the wires erection. In this way, the high strength of manual release guide rope and the difficult landing of powered parachute releasing guide rope can be avoided easily. What is more, the trees alongside the route will be less cut to maximize the natural ecology protection.
3. Line Route Plane
UAV surveying system has many advantages of real time, low cost, fast response, high flexibility and so on.