Nanchang for the first time to use the "UAV local release detection technology" inspection power grid

"After the UAV is equipped with the local release detection device, the parameters of the equipment should be debuted, and the distance between the UAV and the line should be 5-10 meters after takeoff." On June 24, at the site of the 10 thousand volt reed lamp line located in Luxi Town, Shunqing District, Yang Adjacent Feng and Li Xuan, staff members of Shunqing Power Supply Center of State Grid Nanchong Power Supply Company, assembled the drone and carried out the final inspection, preparing for the first use of the drone equipped with the local release detection device to carry out intelligent inspections.

Due to the many branches and complex channels of distribution network lines, the application scenarios of traditional UAV inspection are limited to the elimination of visual defects such as tree barriers, bird's nests, and broken lines, and highly rely on the pilot's experience judgment, low work efficiency, and possible missing judgment, which is difficult to ensure the quality and efficiency of operation and maintenance. Shunqing Power Supply Center has deeply implemented the requirements of the three systems and two military work, innovatively proposed the intelligent inspection device of UAV distribution network based on local release detection to carry out intelligent inspection of distribution network lines, and successfully developed a local release detection module of UAV to carry out flying patrol tasks relying on Inolux project, aiming to improve inspection efficiency and accuracy by means of intelligent technology. Timely and accurately discover partial discharge defect points to realize intelligent operation and maintenance of distribution network line equipment.

It is reported that this is the first time in the Nanchong region to try to apply the UAV local release detection technology to the intelligent inspection work of the distribution network. The technology integrates the acoustic signal acquisition and automatic identification of discharge type of the local emission detection device with the flexible and efficient characteristics of UAV inspection, and combines the real-time image display of the cloud image back to the UAV controller, which can realize the short-range and multi-angle local emission detection and overcome the interference of complex sound field environment on local emission detection. The defect detection combined with visual imaging of the local discharge area of the operating equipment can be realized, and the line discharge position can be quickly and accurately located. Through timely processing, the line failure rate and trip rate can be effectively reduced, and the inspection efficiency and quality can be greatly improved.
"There is a discharge on the right side of the arrester lead on pole 9 of this line, which needs to be marked." After a morning of careful inspection, the staff successfully found a hidden discharge point. "Using a drone to measure partial discharges is really accurate and efficient, and the point of discharge is clearly shown in the image.

At present, it is about to enter the peak stage of summer load, and the State Grid Nanchong Power Supply Company will further implement the responsibility of operation and maintenance, make full use of intelligent means of equipment operation and maintenance, improve the quality and efficiency of operation and maintenance, and prepare for the kurtosis summer protection power supply, providing a strong guarantee for the safe and stable operation of the power grid.