Wind turbine blade health monitoring system based on multi-sensor information

Abstract

The invention relates to a wind turbine blade health status monitoring system based on multielement sensing information. The monitoring system comprises dual-axis accelerometer sensors arranged on each blade and a main shaft end cover in a hub, strain foils arranged on the root parts of the blades, and an acquisition unit arranged in the hub, wherein the acquisition unit sends vibration data and strain data to an industrial interchanger installed in a cabin through a wireless emission device; the industrial interchanger sends acquired data to a blade monitoring server of a master control roomthrough a wind field looped network; a user can actively observe an analysis result or the server can automatically alarm when the blades are abnormal. Abnormal data is transmitted to an outer net server through one-way isolation equipment, and is then transmitted to a remote diagnosis center through the outer net server, the remote diagnosis center analyzes the abnormal data, and a diagnostic report is submitted.

Description

technical field [0001] The present disclosure relates to the technical field of wind power generator blade state monitoring, in particular to a wind power generator blade health state monitoring system. Background technique [0002] my country's wind energy reserves and exploitable capacity both rank first in the world, and the development of the wind power industry has also achieved fruitful results. With the increase of installed capacity and the prolongation of the operation time of wind turbines, the problems of wind turbines themselves are gradually highlighted. [0003] Areas with abundant wind energy generally have harsh climate conditions. Wind turbines installed in these areas not only need to bear irregular wind loads, but also bear complex climate influences. As the direct load-bearing part of the fan, the blade is not only prone to surface damage such as topcoat peeling and pitting during operation, but the small defects in the production process of the blade wi...

AI Technical Summary

Problems solved by technology

As the direct load-bearing part of the fan, the blade is not only prone to surface damage such as peeling of the finish paint and pitting during operation, but also the small defects in the production process of the blade will gradually expand with the increase of operation time, which will eventually lead to irreparable damage. damage, resulting in huge economic losses

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