Blade adjusting method, device and equipment for wind power generator set and storage medium

A technology of a wind turbine and a control method, which is applied in the control of wind turbines, the monitoring of wind turbines, the combination of wind turbines, etc., can solve problems such as hysteresis, and achieve the effects of improving fit and accurate wind speed changes.

Active Publication Date: 2019-01-08
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of the existing methods, the present application proposes a pitch control method, device, equipment and storage medium for wind power generators to solve the problem of hysteresis of the pitch relative to the wind speed change of the current wind power generators in the prior art. The resulting overspeed problem

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  • Blade adjusting method, device and equipment for wind power generator set and storage medium
  • Blade adjusting method, device and equipment for wind power generator set and storage medium
  • Blade adjusting method, device and equipment for wind power generator set and storage medium

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Embodiment 1

[0061] Such as Figure 5 As shown, the embodiment of the present application provides a pitch control method for a wind power generating set, the method comprising:

[0062] S501. Obtain the blade azimuth angle of the current wind power generator set and the blade azimuth angle of the upwind wind power generator set.

[0063] Optionally, the blade azimuth angles of the current wind power generating set (ie, the downwind wind power generating set to be controlled) at at least two moments, and the blade azimuth angles of the upwind wind generating set at at least two moments are acquired.

[0064] Since the wind speed is transient and irregular, obtaining the blade azimuth angle is easier to obtain real data than monitoring the short-term wind speed, thereby ensuring the accuracy of the pitch control in the embodiment of the present application.

[0065] S502. Determine the change trend of the azimuth angle difference between the blade azimuth angle of the current wind power ge...

Embodiment 2

[0076] Based on the same inventive idea, such as Figure 6 As shown, on the basis of the first embodiment, the embodiment of the present application provides another method for controlling the pitch of the wind power generating set, which includes:

[0077] S601. Obtain the blade azimuth angles of the current wind power generator set at at least two moments, and the blade azimuth angles of the wind turbine generator set on the windward side at least two moments.

[0078] Optionally, the azimuth angles of the blades of the upwind wind power generating set at at least two moments determined by the central monitoring system according to the current wind direction are obtained.

[0079] Since the difference of the blade azimuth angle recovers slowly after the change, the change of the gust and wind speed can be accurately reflected by obtaining the blade azimuth angle of the wind power generating set. Supervisory Control And Data Acquisition (Data Acquisition and Monitoring Contr...

Embodiment 3

[0127] Based on the same inventive idea, such as Figure 8 As shown, the embodiment of the present application provides a pitch control device 800 for a wind power generating set, which includes: a data acquisition module 810 , a parameter determination module 820 and a pitch module 830 .

[0128] The data acquisition module 810 is configured to acquire the blade azimuth angle of the current wind power generator set and the blade azimuth angle of the wind power generator set on the windward side.

[0129] The parameter determination module 820 is configured to determine the change trend of the azimuth angle difference between the blade azimuth angle of the current wind power generation set obtained by the data acquisition module 810 and the blade azimuth angle of the wind power generation set on the windward side.

[0130] The pitch adjustment module 830 is configured to adjust the pitch angle of the current wind power generating set according to the change trend of the azimut...

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Abstract

The embodiment of the invention provides a blade adjusting method, device and equipment for a wind power generator set and a storage medium. The method includes the steps that the blade azimuth angleof the current wind power generator set and the blade azimuth angle of an upper wind side wind power generator set are obtained; the changing trend of the azimuth angle difference value of the blade azimuth angle of the current wind power generator set and the blade azimuth angle of the upper wind side wind power generator set is determined; and the pitch angle of the current wind power generatorset is adjusted according to the changing trend of the azimuth angle difference value. By means of the blade adjusting method, device and equipment for the wind power generator set and the storage medium in the embodiment, the difference value between the blade azimuth angle of the current wind power generator set and the blade azimuth angle of the upper wind side wind power generator set is usedfor conducting blade adjusting in advance so that when wind of the upper wind side wind power generator set reaches the current wind power generator set, blade adjusting is completed correspondingly on the current wind power generator set in advance or completed correspondingly on the wind power generator set exactly, the matching degree of the capability of wind energy capturing of the wind powergenerator set and incoming wind can be improved, and the overspeed phenomenon of the wind power generator set can be reduced when the wind speed changes greatly.

Description

technical field [0001] The present application relates to the technical field of pitch adjustment of a wind power generating set, and in particular, the present application relates to a pitch control method, device, device and storage medium of a wind generating set. Background technique [0002] With the continuous increase of the generating capacity of wind turbines, the types and control methods of wind turbines have developed from a single fixed-pitch stall control to variable-pitch control and variable-speed control. The main control objective of variable-pitch wind turbines is to adjust the pitch angle according to the wind speed. How to ensure the efficient and stable operation of wind turbines has become an important content of wind power technology research. [0003] At present, the pitch control of wind turbines is mainly PID (proportion-integral-derivative, proportional-integral-derivative) control. The main control system uses the wind turbines to run at a consta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04F03D9/25F03D17/00F03D80/00
CPCF03D7/0236F03D7/0256F03D7/042F03D9/25F03D17/00F03D80/00Y02A30/00Y02E10/72
Inventor 马磊卢勇杨志强
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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