Method and device for predicting residual life of key structure position of wind turbine generator

A wind turbine and life prediction technology, applied in computer-aided design, special data processing applications, design optimization/simulation, etc., can solve problems such as low correlation, difficulty in achieving efficient online digital prediction, and difficulty in ensuring the accuracy of remaining life analysis. , to achieve the effect of improving reliability, improving maintenance efficiency and precise positioning
CN112906236APending Publication Date: 2021-06-04LONGYUAN BEIJING WIND POWER ENG TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LONGYUAN BEIJING WIND POWER ENG TECH
Publication Date
2021-06-04

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Patent Text Reader

Abstract

The invention provides a method and a device for predicting the residual life of a key structure position of a wind turbine generator. The method comprises the following steps: establishing a wind turbine generator digital mirror image model and a wind power plant external environment extrapolation digital mirror image model; performing combined simulation on the possible operation state of the wind turbine generator and the wind condition of the wind turbine generator, and extracting simulation results corresponding to the working conditions to establish a simulation result database; establishing a wind turbine generator site load database according to the site actual operation condition statistical data and possible wind regime data; performing equivalent fatigue load calculation analysis on the standard design load data and the site load data according to an equivalent fatigue load algorithm; and establishing a wind turbine generator key structure position residual life analysis model, and carrying out analysis calculation on the key structure position of a single generator and the residual life of the whole generator. According to the method and the device for predicting the residual life of the key structure position of the wind turbine generator, efficient and accurate online prediction analysis of the residual life of the wind turbine generator can be realized.
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Description

technical field

[0001] The invention relates to the technical field of wind power generation, in particular to a method and device for predicting the remaining life of a key structural position of a wind turbine. Background technique

[0002] At present, my country's wind power industry is developing rapidly, especially the construction of offshore wind power and large bases. The units in the wind farm are limited by the environmental conditions and the wind field's own factors, and there are situations that do not match the design conditions or even seriously deteriorate. The safe and reliable operation of unit equipment puts forward higher requirements. As the capacity of wind turbines continues to increase, the weight of the unit, the diameter of the impeller, and the height of the tower have also doubled, especially in areas with low wind speeds. In order to obtain better wind resources, super high towers and large impeller units are usually used, resulting The load of t...

Claims

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