Abstract
With the increasing scale of transmission lines, drone inspection has become a major method of transmission line inspection. In the process of UAV inspection, the safety distance warning of UAV and transmission lines is crucial, and the existing UAV safety distance warning methods have difficulties, such as high cost, low environmental adaptability, and data processing. In this paper, we propose a safety distance warning method based on the rate of change of electric field ring ratio, which can be applied to the inspection process of transmission lines of different voltage levels. In order to accurately measure the electric field strength around the transmission lines, a three-dimensional electric field measurement system for measuring the electric field in space is designed in this paper. Finally, a 10 kV three-phase transmission line experimental platform was built to verify the feasibility of the method proposed in this paper.
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