Application of UAV in Transmission Line Inspection of Electric Power Enterprises

Application of UAV in Transmission Line Inspection of Electric Power Enterprises

Under the current situation, the system reform of electric power enterprises has achieved certain results, the scope of power supply services has been further expanded, and transmission lines have been distributed more and more widely. Due to the differences of natural environment in different regions, it is far from meeting the requirements to conduct daily inspection of transmission lines by manual methods. Using UAV patrol can find out the fault location in the first time, and it will not be affected by terrain conditions. At the same time, it can also realize multi-angle and all-round inspection, and then master the running state of transmission lines as a whole. It can be seen that the application of UAV is of great significance to the inspection of transmission lines in power enterprises.

Research and design analysis of 1 UAV

At present, in the inspection of transmission lines, the most widely used are remote-controlled helicopters and quadrotor drones. Using unmanned aerial vehicle (UAV) to patrol transmission lines in all directions can quickly and accurately judge the fault occurrence point and greatly improve the efficiency of patrol work. Judging from its emergence and structure, UAV is the product of advanced scientific and technological innovation research, and its formation mainly involves the following aspects.

1. 1 technical aspects

Remote-controlled helicopter adopts the pneumatic layout of ordinary helicopter, and can generally carry image acquisition and real-time transmission equipment. During the flight, it can "see"

All kinds of information are transmitted to the monitoring center in time through transmission equipment, which greatly improves the inspection and maintenance efficiency of transmission equipment. The aerodynamic layout structure of quadrotor UAV is that four rotors are symmetrically distributed with each other. This structural arrangement makes it have a high take-off and landing capability. In addition, the quadrotor UAV is also equipped with vibration-damping pan/tilt and wireless transmission equipment. During the inspection of transmission lines, high-definition information can be obtained by using miniature high-resolution image acquisition equipment, and the obtained information can be transmitted to the monitoring center in time.

1.2 aspects of its own system composition

The main body of the remote-controlled drone is the body of the remote-controlled helicopter. In addition, the remote-controlled helicopter also includes vibration damping suspension device, information acquisition and transmission equipment, ground image monitoring system and so on. The quadrotor UAV is mainly composed of the body and the ground monitoring station.

1.3 functional aspects

1.3. 1 Function analysis and application of unmanned aerial vehicle The workflow of remote-controlled helicopter inspection is that people fly or hover over the transmission line by hand, and then use information acquisition equipment to collect and transmit the image information of the line in real time; The workflow of patrol inspection of quadrotor UAV is to collect and transmit information according to the layout of transmission lines under the guidance of ground station. Specifically, it is divided into the following steps: ① Four-rotor UAV autonomously hovers in a specific space position, and then collects image information; (2) By adjusting the course of the quadrotor and the vibration damping pan/tilt, the optical angle and distance between the image acquisition equipment and the tested equipment are reasonably adjusted, so as to realize the real-time image acquisition and transmission of the transmission line equipment; (3) Control according to the instructions of manual operation, and then conduct flight observation and information collection along the transmission line.

1.3.2 function analysis of the ground station. The basic functions of the ground station of quadrotor UAV include remote control and telemetry communication with quadrotor UAV, which plays a guiding role in determining the image information acquisition position of quadrotor UAV, receiving and sorting out the transmission line information obtained by UAV in real time, and operating and controlling the flight state and pan/tilt state of UAV in real time.

Analysis of technical points and innovations of 1.4

The key technical points and innovations of transmission line inspection by UAV are as follows: ① The quadrotor UAV has the characteristics of autonomous hovering and autonomous navigation flight, which can find the fault point after the transmission line trips, and build a complete three-dimensional inspection system for transmission lines on this basis. ② Another function of quadrotor UAV is to protect transmission lines from collision, and it can be used for patrol and inspection of transmission lines. At the same time, it can also protect transmission lines under serious natural disasters, such as common strong winds and heavy rains. ③ Application of ground real-time monitoring technology and image anti-shake and noise reduction technology in transmission line inspection. The visual video of UAV can be transmitted to the monitoring center in time under the action of network information technology. ④ Optimize the integrated design of quadrotor UAV and transmission line rapid detection system, effectively solve the problem of carbon fiber manufacturing process of streamlined fuselage, and then solve the related problems such as lithium battery selection, rotor lift, motor selection, aerodynamics and so on. ⑤ The autonomous hovering and flight control system has two working modes: self-driving and manual. In the autonomous hovering state, the UAV can not only check the route through the high-definition video of the ground station and maintain the manual mode, but also conduct autonomous navigation flight and inspection according to the established route.

2 Application analysis of UAV

2. 1 actual application effect

In transmission line inspection, the application of UAV can realize multi-angle and omni-directional high-altitude information collection, effectively reduce the intensity of overhead transmission line inspection, reduce potential safety hazards, and promote the improvement of inspection efficiency and quality, especially in harsh environments, such as tower slipping, UAV can replace manual trampling and wiring, thus ensuring the safe and stable operation of power grid. In addition, the application of UAV can greatly reduce the cost of inspection work and provide guarantee for production and domestic electricity consumption.

It can be seen that the application of UAV is of great significance to the current inspection of transmission lines in power enterprises.

2.2 Development prospect of UAV

The development prospect of UAV can be summarized as follows:

① In high-voltage transmission lines, it is the guarantee for the stable operation of high-voltage transmission lines to find fault points quickly and accurately and to investigate suspicious fault points efficiently and reasonably.

(2) In a specific section of transmission line or local equipment, the fault can be quickly detected, with low cost, high efficiency, good safety and technology.

(3) It can intelligently hover over the hardware and insulators of transmission lines for local detection, which is simple to operate and reduces the task and time of manual inspection, especially in transmission lines with harsh environmental conditions.

④ The gyro-stabilized visible light monitor and infrared imager equipment of UAV can not only record and detect transmission lines, but also realize automatic inspection, effectively solving the problems such as difficult terrain inspection, further reducing the potential danger of manual inspection and improving the operation quality of transmission lines.

3 abstract

Electric power plays an important role in the development of modern society and is the guarantee for the healthy and stable development of the national economy. Driven by science and technology, the application of UAV in transmission line inspection can greatly improve the operation efficiency and quality of transmission lines, and further enhance their reliability and stability. Therefore, electric power enterprises should increase the application and research of UAV to improve its practical application effect.

refer to

[1], Li, Wu Xiang, etc. Application and Analysis of UAV Patrol Transmission Technology [J]. Journal of Suzhou University, 2013,28 (8): 87-88.

[2] Zhuge Wei. Application Analysis of UAV Line Patrol Technology [J]. Sci-tech Economic Market, 20 15 (5): 16.

[3] Zhou Haifeng. Application and Analysis of UAV Patrol Transmission Technology [J]. Architectural Engineering Technology and Design, 2015 (18):1238.

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