Wind generating set load strain monitoring device based on electrical vortex sensor

Abstract

The present invention discloses a wind generating set load strain monitoring device based on an electrical vortex sensor. The device comprises an L-shaped electro-magnetic induction substrate, an electrical vortex sensor installation sliding seat, an electrical vortex sensor regulation slide rail and an electrical vortex sensor; the L-shaped electro-magnetic induction substrate and the electricalvortex sensor regulation slide rail are fixed at the surface of a test member; the electrical vortex sensor installation sliding seat is slidingly installed on the electrical vortex sensor regulationslide rail, and the electrical vortex sensor installation sliding seat and the electrical vortex sensor regulation slide rail are fixed through adoption of a fixed bolt penetrating a chute on the electrical vortex sensor installation sliding seat and a through hole on the electrical vortex sensor regulation slide rail so as to ensure the tight combination and fixing of the electrical vortex sensorinstallation sliding seat and the electrical vortex sensor regulation slide rail; and the electrical vortex sensor is installed on the electrical vortex sensor installation sliding seat in a thread mode and is accessed to the collection system of a wind generating set. The wind generating set load strain monitoring device is reasonable in price, low in installation technology requirement, convenient to disassemble, high in test precision, convenient in test signal integration and long in service life.

Description

technical field [0001] The invention relates to the technical field of strain monitoring of a wind power generating set, in particular to a load strain monitoring device for a wind generating set based on an eddy current sensor. Background technique [0002] With the development of large-scale and intelligent wind turbines, both owners and manufacturers are paying more and more attention to the stability and reliability of wind turbines, especially the vigorous development and application of offshore wind power in recent years. Difficult to operate and maintain, high cost, harsh environment, etc. Therefore, the country is investing in the research and development of a monitoring system suitable for long-term and independent of the main control system, which can monitor the health status of wind turbines in an all-round way. Among them, the load strain monitoring system is related to the safety of the whole wind turbine. and an important means of monitoring life. Internation...

AI Technical Summary

Problems solved by technology

Internationally, the monitoring of load and strain is mainly divided into two types: strain gauge and optical fiber sensor. For the strain gauge test method, this method can accurately measure local stress strain or high stress concentration point, and the test accuracy is high. However, this method has installation technology. High requirements, drift in long-term operation, limited service life, and difficulty in later replacement and maintenance, so strain testing is mostly used for short-term high-precision experimental testing; another optical fiber load sensor developed in recent years has been gradually applied, which overcomes the shortcomings of strain gauges , has the advantages of long service life, etc., but its equipment is special, it must have a special optical demodulator, it is inconvenient to integrate with other systems, the whole system is expensive, and most of the lasers in the demodulator will appear after long-term operation Attenuation, which leads to the deviation of the measurement results, which limits its use in engineering

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