Lee Gunbok, Kim Jeong-Yeon, Kim Gildong, Kim Jae Hee
Propulsion System Research Department, Korea Railroad Research Institute (KRRI), Uiwang 16105, Korea.
School of Electrical, Electronics and Communication Engineering, Korea University of Technology and Education, Cheonan 31253, Korea.
Sensors (Basel). 2021 Dec 13;21(24):8327. doi: 10.3390/s21248327.
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.
当使用无人机对设施进行检查时，经常会出现高压电线干扰的情况，导致无人机被缠住或坠落。为防止此类事件发生，无人机必须能够检测到高压电线。通常，高压电线周围会形成强电场。为了检测高压电线周围的电场，本研究提出了一种可集成在无人机机身内的电场传感器。在实验室环境中，向架空线施加25 kV的电压，并在不同电场强度下测量所提出传感器中的感应电压。在所提出的每个传感器上，在0.5至10.1 kV/m的电场范围内，测量到的电压为0至0.77 V。此外，还在有架空线的实际铁路环境中测量了传感器中的电场和感应电压。在这些条件下，当测量电场为4.05 kV/m时，所提出的传感器的补偿值为4.5。因此，所提出的传感器可应用于无人机，以测量大电场并检测其附近高压电线的存在。
