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Wind turbine and its fatigue damage calculation method and equipment

A technology for wind turbine generator set and calculation method, which is applied in the control of wind turbines, monitoring of wind turbines, wind turbines, etc., can solve the problems of inability to calculate fatigue damage, lack of bending moment, and low accuracy of blade fatigue damage.

Active Publication Date: 2022-07-15
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology

[0003] At present, due to the different loads required to calculate the fatigue damage of each component, it is impossible to directly calculate the fatigue damage of each large component except the blade based on the measured blade root load, and because the sensor can only measure two Bending moment in one direction so that the bending moment in the third direction is missing, so the accuracy of the calculated blade fatigue damage is low

Method used

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  • Wind turbine and its fatigue damage calculation method and equipment
  • Wind turbine and its fatigue damage calculation method and equipment
  • Wind turbine and its fatigue damage calculation method and equipment

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Embodiment Construction

[0036] Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present disclosure by referring to the figures.

[0037] Since the development of the wind power industry, wind turbines have spread all over the world, and the new installed capacity will decrease year by year. The number of wind turbines that have been put into operation is huge, and most of them have been operating for several years or even more than ten years. Exploiting the potential of these wind turbines in operation may become the focus of future research. If the wind conditions and the distribution of fatigue damage (referred to as damage) of the fan during operation can be obtained over a period of time, scheduling can be made accordingly to optimize the damage distribution in the remaining lif...

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Abstract

The present disclosure provides a wind turbine generator set and a fatigue damage calculation method and device thereof, wherein the method includes: calculating a blade root load according to a load sensed by a blade root sensor of the wind turbine generator set, the sensed The load includes the x-axis bending moment and the y-axis bending moment; the hub center load is calculated according to the blade root load; the plane stress is calculated according to the hub center load; the fatigue damage is calculated according to the plane stress. According to the present disclosure, the load sensed by the sensor can be converted to meet the calculation needs of the plane stress, and the plane stress is calculated based on the converted load and the fatigue damage is calculated based on the calculated plane stress, so that the sensor sensed can be effectively used. load to obtain fatigue damage.

Description

technical field [0001] The present disclosure relates to wind power generation technology, and in particular, to a wind turbine generator set and a method and device for calculating fatigue damage thereof. Background technique [0002] At present, the on-grid electricity price of wind turbines (referred to as wind turbines) is on a downward trend. In order to improve the market competitiveness of wind turbines, reduce wind turbine costs, tap the potential of wind farms and increase power generation, it is necessary to accurately understand the fatigue damage caused by loads to wind turbines. In order to ensure the safety of wind turbines, reasonably determine the over-generation amount and formulate an effective over-generation plan; smart wind turbines and smart wind farms are the current development trend of the wind power industry. Effectively grasping the operation of wind turbines and real-time early warning can ensure the safety of wind turbines , Reduce unnecessary op...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D17/00F03D1/06F03D7/02G06F30/20G06F119/04
CPCF03D17/00F03D1/0691F03D1/0675F03D7/02F05B2270/328Y02E10/72
Inventor 鲁欢杜翔宇杨剑秋
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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