A Review of Icing and Anti-Icing Technology for Transmission Lines

Abstract

This paper reviews the application of various advanced anti-icing and de-icing technologies in transmission lines. Introduces the influence of snowing and icing disasters on transmission lines, including a mechanical overload of steel towers, uneven icing or de-icing at different times, Ice-covered conductors galloping and icing flashover of insulators, as well as the icing disasters of transmission lines around the world in recent years. The formation of various icing categories on transmission lines, as well as the effect of meteorological factors, topography, altitude, line direction, suspension height, shape, and electric field on ice-covered transmission lines, are all discussed in this study. The application of various advanced anti/de-icing technologies and their advantages and disadvantages in power transmission lines are summarized. The anti/de-icing of traditional mechanical force, AC/DC short-circuit ice melting, and corona effect is introduced. Torque pendulum and diameter-expanded conductor (DEC) have remarkable anti-icing effects, and the early investment resources are less, the cost is low, and the later maintenance is not needed. In view of some deficiencies of AC and DC ice melting, the current transfer intelligent ice melting device (CTIIMD) can solve the problem well. The gadget has a good effect and high reliability for de-icing conductors in addition to being compact and inexpensive. The application of hydrophobic materials and heating coatings on insulators has a certain anti-icing effect, but the service life needs further research. Optimizing the shed’s construction and arranging several string kinds on the insulators is advisable to prevent icing and the anti-icing flashover effect. In building an insulator, only a different shed layout uses non-consumption energy.

EDUNet++: An Enhanced Denoising Unet++ for Ice-Covered Transmission Line Images

“…During the winter season in northern China, the transmission lines are susceptible to ice and snow coverage due to variations in air humidity, wind speed, temperature, and other factors, that poses safety and stability concerns to the cables [1,2]. Transmission line ice-coverage will not only lead to the decrease of line load capacity, but may also cause equipment failure, power outage and other problems that seriously affect the operation of the power grid [3][4][5]. Therefore, in order to accurately monitor the condition of power transmission lines, we designed a suspended intelligent vibration de-icing robot as shown in Figure 1.…”

Analysis of Solar Radiation Differences for High-Voltage Transmission Lines on Micro-Terrain Areas

“…When the heat inflow into ice exceeds the outflow, the excess heat gradually raises the temperature of the ice to 0 • C, causing it to undergo a phase transition into liquid water. After adverse weather, solar radiation becomes an important heat source, affecting the heat balance process of the ice [5]. Li [6] proposes a scalable solar-thermal icephobic nanocoating that achieves effective deicing of transmission lines by increasing its absorption rate of solar radiation.…”

Evaluating Practical Performance of Weather Modification Aerosol Catalysts via 12000 m3 Artificial Climate Chamber

“…To eliminate glaze icing, various strategies were attempted, − such as mechanical deicing, thermally melting the icing, explosive deicing, applying a hydrophobic coating layer, etc. However, they all have several drawbacks, i.e., these methods fail to inhibit the formation of glaze icing, which might not be sufficient to protect the transmission lines.…”