Wind generating set monitoring device and method based on embedded computer and acquisition card

Abstract

The present invention provides a wind generating set monitoring device and method based on an embedded computer and an acquisition card. A sensor acquires a vibration signal, the rotating speed and the like of a gear box of a wind generating set, the signals acquired by the sensor are digitized by a data acquisition card and then are imported in the embedded computer, the embedded computer carries out the spectral analysis, the envelope analysis and the order analysis on the vibration signal to obtain the amplitude of the characteristic quantity of the vibration signal and sends the data to an upper computer via a network, and the upper computer saves the data, displays the variation trend of the amplitude of the characteristic quantity and gives out a diagnosis result of the state of the wind generating set. According to the present invention, the equipment expandability and the maintainability are improved, at the same time, the equipment manufacturing and maintenance cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a state monitoring device and method for a wind power generating set based on an embedded computer and an acquisition card. Background technique [0002] Wind farms are generally located in remote areas, and the nacelles of wind turbines are located at high altitudes, making maintenance difficult and costly. For units with a service life of 20 years, the operation and maintenance cost is estimated to account for 10% to 15% of the wind farm revenue; for offshore wind farms, the cost of wind turbine operation and maintenance is as high as 20% to 25% of the wind farm revenue. When the unit fails, it is difficult to accurately judge the failure at the first time and formulate a correct maintenance plan, and the maintenance is difficult, resulting in an increase in maintenance costs. [0003] Therefore, the development of high-performance and low-cost wind t...

AI Technical Summary

Problems solved by technology

Most of the existing wind turbine status monitoring equipment is special-purpose equipment. The cost of such special-purpose equipment is relatively high. It is mainly designed for vibration signal detection. It has a high degree of packaging but insufficient scalability, and poor hardware replaceability and maintainability. Limits the expansion of its functions and the reduction of costs

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