Wind turbine and wind energy capturing method and device thereof

A technology for wind turbines and wind generators, which is applied in the control of wind engines, wind engines, and wind power generation. It can solve problems such as affecting the operation of wind turbines, increasing the load of wind turbines, and losing power generation, so as to reduce failures and maintenance costs. Effect of reducing fan load increase and improving capture capacity

Active Publication Date: 2016-06-08
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current wind speed and direction cannot be accurately collected through the wind vane, and the maximum wind energy cannot be captured. If the impeller is not facing the windward side, the load of the fan will increase and the wake effect will be serious, which will seriously affect the normal operation of the fan and lose power generation.

Method used

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  • Wind turbine and wind energy capturing method and device thereof
  • Wind turbine and wind energy capturing method and device thereof
  • Wind turbine and wind energy capturing method and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] figure 1 It is a flow chart showing the method for capturing wind energy of a wind power generating set according to Embodiment 1 of the present invention. by including as Figure 6 The shown apparatus performs the method.

[0027] refer to figure 1 , in step S110, acquire wind condition data in real time according to a predetermined period.

[0028] Wherein, the predetermined period can be set according to actual conditions, such as 20 seconds, 1 minute, 5 minutes or 10 minutes. The wind condition data may include wind speed data and / or wind direction data, etc., and the wind direction may be determined by a predetermined reference direction, for example, if the reference direction is true north, then the value of the wind direction may be an angle relative to the true north direction value.

[0029] Specifically, a wind condition data acquisition component for collecting wind condition data such as wind speed and / or wind direction at the current moment may be pre...

Embodiment 2

[0039] figure 2 is a flow chart showing a method for capturing wind energy of a wind power generating set according to Embodiment 2 of the present invention, and the embodiment can be regarded as figure 1 Another specific implementation scheme of .

[0040] refer to figure 2 , in step S210, acquire pre-stored historical wind condition data.

[0041] Wherein, the wind condition data in the embodiment of the present invention can include the numerical value of wind speed and wind direction, and wind direction can be described by geographical direction, also can be described by the angle determined with preset positive direction, for example, can set true north The direction is the positive direction, and the angle rotated clockwise from the positive direction is taken as the wind direction.

[0042]Specifically, in order to improve the accuracy of the measured wind data, radar can be selected as the wind data acquisition component. The radar collects the value of the wind s...

Embodiment 3

[0094] Based on the same technical idea, Figure 6 It is a logical block diagram showing the wind energy capture device of the wind power generating set according to the third embodiment of the present invention. refer to Figure 6 , the device includes a wind condition data acquisition module 610 , a geometric center point determination module 620 and a control module 630 .

[0095] The wind condition data acquisition module 610 is used for acquiring wind condition data in real time according to a predetermined period.

[0096] The geometric center point determining module 620 is used for performing scatter fitting on the wind condition data obtained within the predetermined period to obtain the geometric center point of the wind condition data, and the geometric center point is used to indicate the location of the maximum wind energy value.

[0097] The control module 630 is used to compare the geometric center point with the target geometric center point, and execute a co...

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PUM

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Abstract

An embodiment of the invention provides a wind turbine and a wind energy capturing method and device thereof. The method comprises the following steps: acquiring wind regime data in real time according to a preset cycle; carrying out scattered point fitting on the wind regime data acquired in the preset cycle to obtain a geometric central point of the wind regime data, wherein the geometric central point is used for showing the location of a maximum wind energy value; comparing the geometric central point to a target geometric central point; and carrying out a corresponding wind driven generator control strategy according to a comparison result. By the embodiment of the invention, wind energy capturing capability and reliability of the wind turbine can be improved effectively, meanwhile, fan load increasing and wake effects which are caused by the reason that an impeller does not face a windward side can be reduced, and faults and maintenance cost of the wind turbine are reduced.

Description

technical field [0001] The invention relates to wind power technology, in particular to a method and device for capturing wind energy of a wind power generating set and a wind generating set. Background technique [0002] A wind turbine is a device that converts the captured wind energy into mechanical energy, and then converts the mechanical energy into electrical energy. [0003] In the actual operation of wind turbines, in order to maximize the use of wind resources and increase power generation, the nose of the wind turbines is generally adjusted through the yaw system so that the impellers are facing the windward direction, and the yaw in the wind turbines The control strategy mainly collects the current wind speed and direction through the wind vane. [0004] However, the current wind speed and direction cannot be accurately collected through the wind vane, and the maximum wind energy cannot be captured. If the impeller is not facing the windward side, the load of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04F03D7/02
CPCF03D7/0204F03D7/042Y02E10/72
Inventor 姜永强彭进董兆宇
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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