3D state fitting and optimization of transmission line based on GIM model

In order to accurately monitor the force deflection of insulator strings in transmission lines, an on-line monitoring device based on real-time running position is introduced in this paper. The device can obtain the spatial coordinate information of the wire in real time, and accurately fit the running state of the wire by using the orthogonal polynomial fitting technique. In addition, the device can also sense the wind deviation and sag of the wire in the running state, which provides a strong guarantee for the safe operation of the transmission line. At the same time, this paper also uses the GIM model of transmission lines to fit the three-dimensional state of transmission lines, which provides a research basis for follow-up icing monitoring, load calculation and tower stability evaluation. This method not only improves the accuracy and efficiency of transmission line monitoring, but also helps to ensure the stable operation of power system.