A method for identifying the ultimate load of a wind turbine

A technology for wind turbines and extreme loads, applied in the field of wind power generation, can solve problems such as cost increase, and achieve the effects of reducing extreme loads, ensuring timeliness, and reducing production costs

Active Publication Date: 2018-02-02
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Application Information

AI Technical Summary

Problems solved by technology

Such as the lengthening of the blade, the limit load of the whole machine is continuously increasing, and the cost increase is also very obvious

Method used

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  • A method for identifying the ultimate load of a wind turbine

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like figure 1 As shown, the wind turbine limit load identification method of this embodiment includes the following steps:

[0022] S01, start, establish the extreme load database of the wind power generating set, and each extreme load characteristic and corresponding trigger logic are preset in the extreme load database;

[0023] S02. When the wind power generating set is in normal operation, collect the operating state data of the wind generating set and the wind resource data of the environment where the wind generating set is located in real time;

[0024] S03, compare each data collected in step S02 with the trigger logic of each extreme load in the limit load database, when each data collected is consistent with the trigger logic of a certain limit load, execute the corresponding control logic to control the wind force The genera...

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Abstract

The invention discloses a limit load identification method for a wind power generator unit. The limit load identification method comprises the following steps: S01, starting, and establishing a limit load database of the wind power generator unit, wherein various limit load characteristics and corresponding trigger logics are preset in the limit load database ; S02, when the wind power generator unit normally runs, collecting running state data of the wind power generator unit and wind resource data of an environment where the wind power generator unit is located in real time; and S03, comparing each piece of data collected in the step S02 with the triggered logic of the corresponding limit load in the limit load database, when the collected data is consistent with the triggered logic of one certain limit load, carrying out load drop control on the wind power generator unit, and otherwise, continuously carrying out running according to a normal running logic. The limit load identification method for the wind power generator unit has the advantages of simpleness and convenience in operation, accuracy in control, active avoidance in limit load and the like.

Description

technical field [0001] The invention mainly relates to the technical field of wind power generation, in particular to a method for identifying the limit load of a wind power generating set. Background technique [0002] At present, the wind power industry is developing rapidly, and the power level and blade length of wind turbines continue to increase, making low wind speed wind farms more and more valuable for development. While the power generation of wind farms has been increased, the load of wind turbines has also continued to increase, and the cost has also increased significantly. During the wind turbine design process, the design of many components is mainly restricted by the magnitude of the ultimate load. At present, the design of wind turbines mostly adopts the forward design method, that is, the component results are designed according to the load calculation results. Such as the lengthening of the blade, the limit load of the whole machine is constantly increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D17/00F03D7/00
CPCF03D7/00F05B2270/1033Y02E10/72
Inventor 王磊巫发明李慧新井家宝蒋红武王靛王立鹏宋力兵杨佳元盛科赵萍刘超陈亚楠
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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