Electric transmission line ice coating thickness monitoring method

Abstract

The invention provides an electric transmission line ice coating thickness monitoring method. By storing historical meteorological data, ice coating situation data and geographical environment data, all the data are sorted, corresponding relations are built, and namely a certain meteorological condition produces a certain ice coating situation in a certain geographical environment; after current meteorological data and geographical environment data are obtained, the current meteorological data and geographical environment data are compared with the historical meteorological data, the geographical environment data and the ice coating situation data stored in a database, whether an electric transmission line will be coated by ice in the current situation is determined, and the situation that only ice coating monitoring start time and ice coating monitoring end time are set to cause negligence of ice coating monitoring under the extreme condition is avoided. Through analysis of pictures of an ice coating site of the electric transmission line, the current ice coating mode is determined so that ice coating density can be determined, and an ice coating thickness is further calculated. The electric transmission line ice coating thickness monitoring method not only can be used for monitoring the ice coating thickness, but also can be used for forecasting the increase condition of the ice coating thickness in a certain time quantum.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a method for monitoring the ice thickness of a power transmission line. Background technique [0002] In recent years, due to the influence of macro-climate and micro-meteorological conditions in my country, ice disaster accidents have occurred frequently, causing huge economic losses. Under certain meteorological conditions, ice crystals accumulate around the wires on the power transmission line. Icing will increase the load on the wires and towers. At the same time, the shape of the circular cross-section of the wires will be changed, and the windward area will be enlarged. Events such as network, torsion, wire disconnection, and pole down, resulting in large-scale power outages. In 2008, a large-scale continuous low temperature, rain, snow and freezing weather hit central, southern and southern China, causing accidents such as the collapse of electric poles...

AI Technical Summary

Problems solved by technology

Under certain meteorological conditions on the transmission line, ice crystals accumulate around the wires. Ice coating will increase the load on the wires and towers, and at the same time change the circular cross-sectional shape of the wires and expand the windward area. network, twisting, disconnection, pole down and other events, resulting in large-scale power outages

In 2008, a large-scale continuous low temperature, rain, snow and freezing weather hit central, southern and southern China, causing accidents such as pole collapse and power interruption, which seriously affected the safe and stable operation of the power communication network

This method only collects ice-covered images, does not further analyze the images, and does not provide important parameters such as ice-covered thickness. The degree of ice-covered disasters requires staff to judge through images, which is not scientific

Images