Current collection line height selection method for crossing tower of wind power plant

Abstract

The invention provides a current collection line height selection method for a crossing tower of a wind power plant. The current collection line height selection method comprises the following steps: step S1, collecting soil moisture content data and soil porosity data of a mounting position of the crossing tower; S2, constructing an upward pulling and sinking model of the crossing tower; S3, inputting the soil moisture content data and the soil porosity data into an up-pull and down-sink model to obtain an up-pull threshold value and a down-sink threshold value; S4, acquiring an obstacle between the two crossing towers; S5, acquiring the installation height of the current collection line according to the obstacle, the up-pull threshold value and the sinking threshold value, and taking the soil moisture content data and the soil porosity data as the input of the up-pull and sinking model of the crossing tower; after the up-pulling threshold value and the sinking threshold value are obtained, the installation height of the current collection line can be selected by combining the positions of obstacles between the crossing towers, and the situation that when the crossing towers are pulled up or sunk, the current collection line makes contact with other obstacles, and consequently electric energy cannot be normally transmitted is prevented.

Description

technical field [0001] The invention relates to the technical field of wind farm construction, in particular to a method for selecting the height of a collector line used for crossing towers of a wind farm. Background technique [0002] The wind farm is mainly composed of wind turbines, substations and on-site power collection lines. The wind turbines and substations generally adopt the wiring form of one machine and one change, and the corresponding wind turbines and substations are connected through the on-site power collection lines. For transmission, wind farms have high requirements for the path of the collection lines in the field. The path selection should be as short as possible, and the lines should avoid crossing. However, due to the existence of terrain and obstacles in the field, direct wiring will lead to Part of the lines cross, for this reason, in the wind farm, a large span frame will be set up to realize the crossing between the lines and between the lines a...

AI Technical Summary

Problems solved by technology

[0003] In the current construction of wind farms, the height of the collector line on the spanning frame is basically considered in consideration of existing obstacles, buildings, etc., and the uplift and subsidence of the spanning tower that may occur during long-term use are not considered. If the distance between the collector line and the upper and lower obstacles is too short during the construction of the wind farm, the collector line will come into contact with the obstacle when the spanning tower is uplifted or sunk, resulting in the failure of power transmission

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