Abstract
When a drone is used for inspection of facilities, there are often cases in which high-voltage power lines interfere, resulting in the drone being caught or falling. To prevent this type of incident, drones must be capable of detecting high-voltage power lines. Typically, a strong electric field is formed around the high-voltage lines. To detect the electric fields around high-voltage lines, this study proposes an electric field sensor that may be integrated within the body of a drone. In a laboratory environment, a voltage of 25 kV was applied to an overhead line, and the induced voltage in the proposed sensor was measured at various electric field intensities. Over an electric field range of 0.5 to 10.1 kV/m, a voltage of 0 to 0.77 V was measured with each proposed sensor. In addition, the electric field and the voltage induced in the sensor were measured in a real-world railway environment with overhead lines. Under these conditions, the proposed sensor has the compensated value of 4.5 when the measured electric field was 4.05 kV/m. Therefore, the proposed sensor may be applied in drones to measure large electric fields and to detect the presence of high-voltage lines in its vicinity.
Highlights
More and more drones are used for the inspection of electrical facilities.when these drones approach a facility to obtain high-resolution photos, the distances between the power lines and drone are not accurately identified, which may lead to the drone becoming caught in the lines during maneuvers
We proposed a method involving the use of a component of a drone to measure the electric field generated by high-voltage power lines
A high voltage of 60 Hz and 25 kV is supplied in the overhead lines of railway environments
Summary
More and more drones are used for the inspection of electrical facilities. when these drones approach a facility to obtain high-resolution photos, the distances between the power lines and drone are not accurately identified, which may lead to the drone becoming caught in the lines during maneuvers. A commonly used method for the detection of high-voltage lines utilizes images or videos taken during the drone operation. This method acquires image data near the drone and extracts information involving the voltage lines using algorithms such as the Hough transform, Radon transform, and Line Segment Detector [1,2]. We propose a method for measuring electric fields such that drones may be able to detect high-voltage lines in their vicinity. We proposed a method involving the use of a component of a drone to measure the electric field generated by high-voltage power lines.
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