Research on Laser Deicing Technology for Overhead Line

Abstract

At present, there are many deicing methods for power transmission lines, including direct current deicing and AC deicing. Under certain conditions, ice bridge flashover may occur under these icing conditions. It is necessary to study the deicing and deicing methods for power transmission lines, but there is no better deicing method for substation equipment at present. Laser deicing has certain feasibility in substation equipment deicing. According to the nature and mechanism of laser and the three characteristics of laser (high power, high beam quality and high stability), there are two methods that can be used in ice melting at present. The first one is to use the high energy, high intensity and high brightness of laser, and we can use the energy of laser to deicing. On the ice. The second is to use the laser pulse and stress wave to irradiate the ice. Laser shock can produce strong stress wave in the ice, so as to achieve the purpose of melting ice. Laser deicing device has the characteristics of small size, light weight, easy to carry, simple operation and so on. It can carry out deicing operation in harsh environment. With the development of technology and industrialization, the performances of lens and laser with high transmittance and collimation have been improved and the price has been declining, which will promote the further development and application of high power laser de-icing technology.