Prediction method for corrosion rate of Q235 galvanized steel grounding net of transformer station

Abstract

The invention discloses a prediction method for the corrosion rate of a Q235 galvanized steel grounding net of a transformer station. The method comprises the following steps that A) an influential factor of soil corrosivity is determined, and a data sample is obtained; B) data is normalized; C) a neural network is used for training and learning to obtain a corrosivity test evaluation network model; D) whether an error of the corrosivity test evaluation network model satisfies requirement is verified and checked; E) the corrosivity test evaluation network model that satisfies the error requirement is used to predict the corrosion rate of the Q235 galvanized steel grounding net of the transformer station; and F) a denormalization method is used to obtain the practical corrosion rate of the Q235 galvanized steel grounding net of the transformer station. According to the invention, the artificial neural network is used for data mining, the practical corrosion state of the Q235 galvanized steel grounding net is predicted on the basis of existing data, hidden safety troubles are discovered, measures are taken, and new reference is provided for protection work of the grounding net of the transformer station.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a method for predicting the corrosion rate of a substation grounding grid. Background technique [0002] The safety of the grounding grid is an important guarantee to ensure the safe operation of the substation in the power system, the normal operation of the power equipment and the life safety of the staff. Because the material of the grounding grid is mostly made of Q235 steel, and it is buried in the ground all the year round, it will often corrode due to the complex underground soil environment, resulting in the deterioration of its grounding performance, which in turn affects the normal operation of the entire power grid. Due to the particularity of the grounding grid, the traditional measurement of the corrosiveness of the grounding grid is performed manually after excavating the site. This primitive and intuitive detection method is not only inconvenient, but also br...

AI Technical Summary

Problems solved by technology

Since the material of the grounding grid is mostly Q235 steel, and it is buried underground all year round, it will often be corroded due to the complex soil environment underground, resulting in deterioration of its grounding performance, which in turn affects the normal operation of the entire power grid

Due to the particularity of the grounding grid, the traditional measurement of the corrosion of the grounding grid is carried out by manually excavating the site. This original and intuitive detection method is not only inconvenient, but also brings hidden dangers to the safe operation of the equipment.

Images