Method for predicting icing thickness of wire in complex mountainous environment

Abstract

The invention discloses a method for predicting the icing thickness of a wire in a complex mountain environment. The method comprises the following steps: acquiring meteorological elements monitored by a meteorological station near the wire to be predicted, and the environment temperature, altitude information and wind speed of the position of a tower pole; calculating the air pressure of the position of the tower pole according to the acquired meteorological elements and the environment temperature and altitude information of the position of the tower pole; calculating the liquid water content of the position where the tower pole is located by combining the environment temperature and air pressure of the position where the tower pole is located and meteorological factors monitored by a meteorological station; estimating the median volume diameter of the cloud droplet according to the liquid water content of the position of the tower pole; and estimating the raindrop falling end speedand the raindrop particle size according to precipitation data monitored by the meteorological station. According to the method, related monitoring data of the power transmission line in the miscellaneous mountainous region environment are obtained, and through a series of processing, the change characteristics of the conductor icing thickness in the complex mountainous region environment can be accurately predicted.

Description

technical field [0001] The invention relates to a method for predicting the ice coating of transmission lines, in particular to a method for predicting the ice coating thickness of conductors in a complex mountainous environment. Background technique [0002] Electricity is the power engine that guarantees the rapid and healthy development of the national economy. Icing wires refers to the weather phenomenon that freezing rain, rime or wet snow freezes on the wires, which will not only affect the normal operation of the power system, but also cause the transmission line to collapse in severe cases. , disconnection, insulator flashover, poor communication and other faults have brought great inconvenience to people's production and life, and caused serious losses to the social economy. [0003] To reduce the losses caused by icing disasters, it is necessary to accurately predict the thickness of conductor icing, and the occurrence and development of conductor icing are insepar...

AI Technical Summary

Problems solved by technology

However, the meteorological parameters required by this model are relatively complex. Key parameters such as liquid water content, cloud droplet median volume diameter, raindrop falling speed and raindrop particle size are usually obtained through manual observation, and many transmission lines are erected in sparsely populated and complex mountainous areas. In the environment, it is difficult to observe these meteorological parameters manually, which also brings great difficulties to accurately predict the ice thickness of conductors in complex mountainous environments.

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