The galloping monitoring of transmission lines is an important means of galloping disaster warning. The movement characteristics and line conditions of the transmission line are judged by monitoring and processing information such as the vibration frequency, temperature, stress and other physical quantities of the transmission line. Aiming at high-voltage transmission lines, a simple and feasible method for monitoring line galloping is proposed. The video image is analyzed through the Tracker software, use the height of the electrical tower in the image as a scale to establish a coordinate system. We can select a certain point in the video image, and track the selected point in each frame of the image to obtain the frequency and Amplitude. The results show that the method can effectively and simply analyze the characteristics and laws of line galloping, and provide a basis for disaster warning.
Galloping is one of the important factors leading to unplanned outage of overhead transmission lines, which threatens the safe operation of transmission lines and is very necessary for galloping monitoring of overhead transmission lines. In this paper, the cable vibration monitoring technology based on the Stokes parameters is proposed. Using the OPGW fiber, the polarization state change of the light can be obtained by real-time detecting the Stokes parameters of the light in the fiber, and the vibration information of the cable can be obtained, so as to realize the online monitoring of the cable galloping. We have tested it in the laboratory and on the actual line, and the results show that the technology is feasible. This study proposes a cable vibration monitoring technology with strong anti electromagnetic interference ability, long service life, easy maintenance and low cost, which provides a new idea for transmission line galloping detection technology.
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