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Intelligent blade of wind power generator with strain sensors

A strain sensor and wind turbine technology, which is applied to wind turbines, wind turbine combinations, and wind turbines in the same direction as the wind, can solve the problems of reduced power generation, insufficient sensitivity, economic losses, etc. Safe and reliable operation

Active Publication Date: 2015-04-01
无锡风电设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sensitivity of the anemometer used to measure the wind direction is not enough, which leads to the inability of the blades to yaw and pitch in time according to the needs, resulting in a decrease in power generation and corresponding economic losses

Method used

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  • Intelligent blade of wind power generator with strain sensors

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Experimental program
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Embodiment Construction

[0009] Such as figure 1 As shown: the present invention includes a blade body 1, a strain sensor 2, a collector 3, a pitch mechanism 4, an intelligent blade controller 5, a communication module 6, a main controller 7, a wind power generating set 8, a tower 9, a hub 11 and Pitch bearing 12.

[0010] Such as figure 1 As shown: in the blade body 1 corresponding to the blade tip, the middle of the blade and the blade root, a strain sensor 2 is arranged, and the strain sensor 2 can detect the strain amount of the corresponding part of the blade body 1 under the action of the wind 10; the strain The sensor 2 is an externally attached strain gauge, an internal embedded strain gauge or an embedded optical fiber strain sensor. The collector 3 collects the strain detected by the strain sensor 2, and the collector 3 directly transmits the strain to the intelligent blade controller 5 or transmits it to the main controller 7 through the communication module 6, and the intelligent blade c...

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PUM

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Abstract

The invention relates to an intelligent blade of a wind power generator, in particular to an intelligent blade of a wind power generator with strain sensors. According to the technical scheme, the intelligent blade comprises a blade body, wherein the blade body is internally provided with the strain sensors correspondingly to the top part, the middle part and the root part thereof. The top part, the middle part and the root part in the blade body are provided with the strain sensors, so that the strain capacity of the corresponding parts of the blade body can be detected; and a blade changing mechanism is controlled by an intelligent blade controller and a main controller to change the blade, so that the wind power generator can capture the wind power to the maximum extent. Furthermore, under the action of the blade changing mechanism, the intelligent blade reduces the operating load, leads the blade body to be safe and reliable in operating, and effectively protects the blade body.

Description

technical field [0001] The invention relates to a blade of a wind power generator, in particular to an intelligent blade of a wind power generator with a strain sensor. Background technique [0002] A wind turbine is an energy machine that uses wind turbine blades to capture wind energy and convert it into mechanical energy, which then drives a generator to generate electricity. Wind turbines are generally installed in areas rich in wind energy resources and work in harsh environments, such as high and low temperatures, typhoons, lightning strikes, sandstorms, and various corrosions. The diameter of the blade of the wind turbine is large, and the force on each part of the blade is uneven, and the acceleration and deceleration are frequent, which is easy to cause damage to the blade. [0003] Due to the relatively late start of the domestic wind power generation industry and the immature manufacturing technology of wind turbines, professional technical service personnel are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03D1/06F03D9/00G01B21/32F03D9/25F03D17/00
CPCY02E10/723Y02E10/721Y02E10/72
Inventor 赵新华郭大宏杨雷
Owner 无锡风电设计研究院有限公司