Wind power gear box degradation state tracking and failure aggregation risk evaluation method

Abstract

The invention discloses a wind power gear box degradation state tracking and failure aggregation risk evaluation method. The method comprises the following steps: step 1) cleaning monitoring data; 2)tracking the degradation process of the wind power gear box; 3) wind power plant cluster state fusion and wind power plant unit division; 4) determining a dynamic threshold value of a degradation failure index of the wind power gear box; and 5) wind power gear box failure risk aggregation evaluation in the cluster. According to the method, a failure evolution mechanism and a data-driven hybrid model under the action of a transient load are taken as entry points, the degradation process of the wind power gear box is described, a dynamic failure threshold value of unit cluster fusion is providedas an early warning monitoring index, and the failure aggregation risk of the wind power gear box in a cluster unit is evaluated.

Description

technical field [0001] The invention relates to a degradation state tracking and failure aggregation risk assessment method of a wind power gearbox. Background technique [0002] With the continuous development of today's society, the shortage of traditional energy has become very serious. As a renewable clean energy, wind energy has very broad application prospects because of its abundant reserves and wide distribution. Since the 21st century, in the process of continuous development of various energy technologies, wind power has always maintained a good development trend. [0003] However, wind turbines are generally installed in remote areas with good wind energy resources such as Gobi, wilderness, and high mountains, and the operating environment is relatively harsh. As the core component of the wind turbine, the wind power gearbox operates under severe alternating load conditions for a long time. In addition, the temperature difference between day and night in remote...

AI Technical Summary

Problems solved by technology

In addition, the temperature difference between day and night in remote areas, the influence of wind and sand, the manufacturing and assembly errors of the wind power gearbox, and its own wear and poor lubrication will all cause damage to the components of the wind power gearbox

Once the equipment is shut down due to failure, not only the maintenance is difficult and the maintenance cost is high, but also the economic loss caused is immeasurable

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