Cabin displacement monitoring method of wind generating set

Abstract

The invention discloses a cabin displacement monitoring method of a wind generating set. A steel wire rope is mounted on the center line of a tower barrel at the bottom of a cabin, the steel wire ropedescends to the position away from the ground by 2-3 m from the cabin, a pendant is suspended at the lower end of the steel wire rope, and the steel wire rope is in a complete vertical state and a tensioned state. A platform is arranged at the position, away from the ground by 5-6 m in the tower barrel, a round hole is formed in the platform, and the steel wire rope vertically penetrates throughthe round hole. A dual-axial tilt angle sensor is suspended on the steel wire rope above the platform, one axial direction of the dual-axial tilt angle sensor is aligned to the direction of the cabinand is used for detecting front-and-back movement of the cabin, and the other axial direction of the dual-axial tilt angle sensor is aligned to the lateral direction of the cabin and is used for detecting front-and-back tilting and left-and-right tilting of the cabin. When the wind generating set operates, due to front-and-back movement and left-and-right movement of the cabin, the steel wire ropecan be driven to tilt front and back and left and right, and front-and-back displacement and left-and-right displacement generated to the cabin can be calculated through the tilt angle. The method issimple and reliable, and accuracy is high.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method for monitoring displacement of a nacelle of a wind power generating set. Background technique [0002] As the height of the tower of the wind turbine becomes higher and higher, the flexibility also increases, and the degree of bending continues to increase. If the tower bends too severely, it may bring dangerous consequences. The displacement of the nacelle is an index of the bending degree of the tower. The displacement of the nacelle is defined as the horizontal distance that the nacelle deviates from itself in the static state of the wind turbine during the operation of the wind turbine. Therefore, during the operation of the wind turbine, it is necessary to monitor the displacement of the nacelle in real time. When the displacement of the nacelle is greater than a certain threshold, corresponding measures should be taken to ensure the safety of the unit...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and propose an accurate and reliable method for monitoring the displacement of the nacelle of the wind turbine, which can accurately measure the displacement of the nacelle and avoid the inability to guarantee the accuracy, error and stability of the traditional technology The problem

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