CN102493918A - System and method for pre-warning and controlling gust load of wind power station - Google Patents
System and method for pre-warning and controlling gust load of wind power station Download PDFInfo
- Publication number
- CN102493918A CN102493918A CN2011104400512A CN201110440051A CN102493918A CN 102493918 A CN102493918 A CN 102493918A CN 2011104400512 A CN2011104400512 A CN 2011104400512A CN 201110440051 A CN201110440051 A CN 201110440051A CN 102493918 A CN102493918 A CN 102493918A
- Authority
- CN
- China
- Prior art keywords
- wind
- turbine set
- energy turbine
- current
- gust load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Wind Motors (AREA)
Abstract
The invention provides a system and a method for pre-warning and controlling gust load of a wind power station. The system comprises at least one standby gust load pre-warning machine, and a wind power station level control unit; the at least one standby gust load pre-warning machine is at least one wind driven generator which is distributed at the periphery of the wind power station, and is positioned at the windage front position of the wind power station; and the wind power station level control unit acquires a wind angle of the wind power station, selects the current gust load pre-warning machine aiming at the wind angle from at least one gust load pre-warning machine according to the wind angle, acquires the characteristic value of the current gust according to the running state of the current gust load pre-warning machine and performs pitch regulation on all wind driven generators distributed in the wind power station according to the pitch regulation velocity corresponding to the characteristic value of the current gust, and changes the pitch angles of blades of all wind driven generators to ensure that all the wind driven generators run at rated power if the characteristic value of the current gust is more than a preset threshold value and less than the safety threshold value of the current gust load pre-warning machine.
Description
Technical field
The invention belongs to wind power generation field, relate to a kind of wind energy turbine set gust load pre-alarming control system and method.
Background technique
Wind load is the main load that the mechanical part of wind-driven generator bears, and the acute variation of wind speed can be brought very big load fluctuation to wind-driven generator.
Present MW class speed-changing oar-changing class wind-driven generator mainly reduces the wind speed variation to load influence through changing modes such as generator torque, change blade pitch angle.Usually increase at wind speed and surpass under the situation of rated wind speed, increase the blade pitch angle, reduce power and capture, thus the increase of limit load, and at wind speed hour, reduce the blade pitch angle, increase power output.Yet; Such control mode can not play the purpose of control load and power, and too fast if wind speed changes, the power of wind-driven generator or rotating speed may exceed the scope of safe operation; Wind-driven generator can start the protection shutdown mode usually, makes the wind-driven generator dead halt.The fatigue load of wind-driven generator frequent shutdown also can increase mechanical part reduces fatigue life, and can cause the loss of generated energy.
The scheme that solves gust load at present mainly comprises two aspects: the one, and the design strength of the mechanical part of increase wind-driven generator and the design margin of electric component make wind-driven generator can resist the caused load change of fitful wind big ups and downs; Be to take Optimal Control Strategy on the other hand, the adjustment Control Parameter increases and becomes oar speed with the extraneous change of wind velocity of quick response with the hysteresis that the change oar that reduces wind-driven generator moves.
Yet, increase the manufacture cost that strength of parts can greatly increase wind-driven generator; In addition; The Control Parameter of the change oar of wind-driven generator action is usually from the variation of rotating speed own or power; This is because can't obtain change of wind velocity information in advance; Therefore cause to solve the hysteresis quality problem that becomes the oar action, and the increase of change oar speed can increase the fatigue load of pitch-controlled system.
Therefore, need a kind of effective wind energy turbine set gust load pre-alarming control system and method.
Summary of the invention
In order to solve the problem of wind-driven generator wind load acute variation under the fitful wind condition; Reduce the manufacturing and the maintenance cost of parts simultaneously as far as possible; The present invention makes all wind-driven generators of wind energy turbine set as a whole, proposes a kind of gust load early warning scheme of effective wind energy turbine set.
According to an aspect of the present invention; A kind of wind energy turbine set gust load pre-alarming control system is provided; Said wind energy turbine set gust load pre-alarming control system comprises: at least one subsequent use gust load early warning plane; Said at least one subsequent use gust load early warning plane is to be distributed at least one peripheral wind-driven generator of wind energy turbine set, is positioned at the position in wind energy turbine set wind-engaging forward position; Wind energy turbine set level control unit; Obtain the wind angle of wind energy turbine set; And select current gust load early warning plane from said at least one subsequent use gust load early warning plane to said wind angle according to said wind angle; Obtain the eigenvalue of current fitful wind according to the running state of current gust load early warning plane; If the eigenvalue of current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane; Then wind energy turbine set level control unit becomes the oar operation according to the change oar speed corresponding with the eigenvalue of current fitful wind to each wind-driven generator that is arranged in the wind energy turbine set, changes the blade pitch angle of each wind-driven generator, makes each wind-driven generator under rated power, move.
Wind energy turbine set level control unit can be from be arranged in wind energy turbine set anemometer tower obtain the wind angle of wind energy turbine set.
Wind energy turbine set level control unit can obtain the wind vane angle of each wind-driven generator that is arranged in the wind energy turbine set, calculates the mean value of wind vane angle, with the wind angle of the mean value that calculates as wind energy turbine set.
Wind energy turbine set level control unit can calculate the coordinate components of seat in the plane point coordinates on the wind angle direction of wind energy turbine set of said at least one subsequent use gust load early warning plane, and in selection and the coordinate components the corresponding alternative gust load early warning plane of maximum value as current gust load early warning plane.
Wind energy turbine set level control unit can be according to the eigenvalue of the blade pitch angle of current gust load early warning plane and the current fitful wind of at least a acquisition in the output power.
The eigenvalue of current fitful wind can be that the unit time wind speed of current fitful wind changes amplitude.
Be in when moving below the rated wind speed at current gust load early warning plane, the unit time wind speed that wind energy turbine set level control unit can obtain current fitful wind according to the variation of the output power of current gust load early warning plane in the scheduled time changes amplitude.
Be in when moving more than the rated wind speed at current gust load early warning plane, the unit time wind speed that wind energy turbine set level control unit can obtain current fitful wind according to the variation at the blade pitch angle of current gust load early warning plane in the scheduled time changes amplitude.
If the unit time wind speed of current fitful wind changes the secure threshold that amplitude exceeds current gust load early warning plane; Then current gust load early warning plane is shut down; And alarm signal is sent to wind energy turbine set level control unit, and each wind-driven generator in the wind energy turbine set level control unit control wind energy turbine set is shut down.
According to a further aspect in the invention; A kind of wind energy turbine set gust load pre-warning and control method is provided; In wind energy turbine set, be furnished with a plurality of wind-driven generators; At least one wind-driven generator that is distributed in the peripheral position that is positioned at wind energy turbine set wind-engaging forward position of wind energy turbine set is as at least one subsequent use gust load early warning plane, and said method comprises: the wind angle that obtains wind energy turbine set; Select current gust load early warning plane according to said wind angle from said at least one subsequent use gust load early warning plane to said wind angle; Obtain the eigenvalue of current fitful wind according to the running state of current gust load early warning plane; If the eigenvalue of current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane; Then each wind-driven generator that is arranged in the wind energy turbine set is become the oar operation according to the change oar speed corresponding with the eigenvalue of current fitful wind; Change the blade pitch angle of each wind-driven generator, make each wind-driven generator under rated power, move.
The step of obtaining the wind angle of wind energy turbine set can comprise: the anemometer tower from be arranged in wind energy turbine set obtains the wind angle of wind energy turbine set.
The step of obtaining the wind angle of wind energy turbine set can comprise: obtain the wind vane angle of each wind-driven generator that is arranged in the wind energy turbine set, calculate the mean value of wind vane angle, with the wind angle of the mean value that calculates as wind energy turbine set.
Select the step of current gust load early warning plane to comprise: calculate the coordinate components of seat in the plane point coordinates on the wind angle direction of wind energy turbine set of said at least one subsequent use gust load early warning plane, and in selection and the coordinate components the corresponding alternative gust load early warning plane of maximum value as current gust load early warning plane.
Can be according to the eigenvalue of the blade pitch angle of current gust load early warning plane and the current fitful wind of at least a acquisition in the output power.
The eigenvalue of current fitful wind can be that the unit time wind speed of current fitful wind changes amplitude.
Be in when moving below the rated wind speed at current gust load early warning plane, the unit time wind speed that can obtain current fitful wind according to the variation of the output power of current gust load early warning plane in the scheduled time changes amplitude.
Be in when moving more than the rated wind speed at current gust load early warning plane, the unit time wind speed that can obtain current fitful wind according to the variation at the blade pitch angle of current gust load early warning plane in the scheduled time changes amplitude.
If the unit time wind speed of current fitful wind changes the secure threshold that amplitude exceeds current gust load early warning plane, then current gust load early warning plane is shut down, and each wind-driven generator in the control wind energy turbine set is shut down.Wind energy turbine set gust load pre-alarming control system and method have been used gust load early warning plane scheme according to the present invention, can obtain fitful wind information in advance, reduce the gust load of other wind-driven generator in the wind energy turbine set; Through obtaining the operation of fitful wind information Control wind-driven generator in advance, reduce to shut down number of times, increase generating dutation, promote the availability of wind energy turbine set.
Description of drawings
In conjunction with the drawings, from following embodiment's description, the present invention these and/or others and advantage will become clear, and are easier to understand, wherein:
Fig. 1 is the block diagram of wind energy turbine set gust load pre-alarming control system according to an exemplary embodiment of the present invention;
Fig. 2 is the schematic representation that obtains the eigenvalue of current fitful wind according to an exemplary embodiment of the present invention according to the running state of current gust load early warning plane;
Fig. 3 is the schematic representation of the change oar control of wind-driven generator;
Fig. 4 is the flow chart of wind energy turbine set gust load pre-warning and control method according to an exemplary embodiment of the present invention.
Embodiment
Basic design of the present invention is; Do wind-driven generators all in the wind energy turbine set as a whole; With peripheral at least one wind-driven generator that distributes of wind energy turbine set as the gust load early warning plane; Through the gust load early warning plane information of fitful wind is passed to wind energy turbine set level control unit, then wind energy turbine set level control unit in advance the control unit of the wind-driven generator of other in wind energy turbine set send control signal, make to be in the wind energy turbine set that each wind-driven generator of wind direction becomes the oar operation accordingly under the gust load early warning plane; Reduce the load fluctuation that fitful wind causes to greatest extent, reduce to shut down number of times.
Fig. 1 is the block diagram of wind energy turbine set gust load pre-alarming control system according to an exemplary embodiment of the present invention.
With reference to Fig. 1, wind energy turbine set gust load pre-alarming control system comprises at least one (that is, one or more) subsequent use gust load early warning plane 1 and wind energy turbine set level control unit 2.Said at least one subsequent use gust load early warning plane can be to be distributed at least one peripheral wind-driven generator of wind energy turbine set.Subsequent use gust load early warning plane is positioned at the position in wind energy turbine set wind-engaging forward position.Wind energy turbine set has the prevailing wind direction of predetermined quantity usually, and prevailing wind direction changes with seasonal variations usually.Can at least one subsequent use gust load early warning plane be set to each prevailing wind direction, when prevailing wind direction changed, wind energy turbine set level control unit 2 can be selected corresponding gust load early warning plane automatically thus, carried out gust load early warning control.Wind energy turbine set level control unit 2 is connected to each wind-driven generator that is arranged in the wind energy turbine set.
Wind energy turbine set level control unit 2 obtains the wind angle of wind energy turbine set, and selects the current gust load early warning plane to said wind angle according to said wind angle from said at least one subsequent use gust load early warning plane.Wind energy turbine set level control unit 2 can be from be arranged on wind energy turbine set anemometer tower obtain the wind angle of wind energy turbine set.
In addition, under the situation that anemometer tower is not set, wind energy turbine set level control unit 2 can be confirmed the wind angle of wind field according to the wind vane angle that is arranged in each wind-driven generator in the wind energy turbine set.
Be provided with n wind-driven generator in the false wind electric field; Then can calculate the wind angle of wind energy turbine set according to following mode: obtain the wind vane angle of each wind-driven generator, the mean value
that is made as
and calculates the wind vane angle is with the wind angle θ of the mean value
that calculates as wind energy turbine set.
Suppose to be provided with k subsequent use gust load early warning plane in wind energy turbine set, the seat in the plane point coordinates of each subsequent use gust load early warning plane in wind energy turbine set is respectively: (x
1, y
1), (x
2, y
2) ..., (x
k, y
k), can calculate the coordinate components of seat in the plane point coordinates on the current wind angle direction of wind energy turbine set of each subsequent use gust load early warning plane: x
1* cos θ+y
1* sin θ, x
2* cos θ+y
2* sin θ ..., x
k* cos θ+y
k* sin θ, the size of these coordinate components relatively, select with coordinate components in the corresponding alternative gust load early warning plane of maximum value as current gust load early warning plane.
When fitful wind took place, wind energy turbine set level control unit 2 running statees according to current gust load early warning plane obtained the eigenvalue of current fitful wind, according to the eigenvalue of current fitful wind each wind-driven generator in the wind energy turbine set were carried out gust load early warning control.Particularly; If the eigenvalue of current fitful wind is greater than predetermined threshold; Then wind energy turbine set level control unit 2 can become the oar operation to each wind-driven generator that is arranged in the wind energy turbine set according to the change oar speed corresponding with the eigenvalue of current fitful wind; Change the blade pitch angle of each wind-driven generator, can reduce the gust load of wind-driven generator, make each wind-driven generator under rated power, move.
The blade pitch angle of current gust load early warning plane and the isoparametric variation of output power can reflect the characteristic of fitful wind.Therefore, can be according to the eigenvalue of the blade pitch angle of current gust load early warning plane and the current fitful wind of at least a acquisition in the output power.
The eigenvalue of fitful wind comprises that the wind speed of fitful wind changes the wind speed transformation period of amplitude and fitful wind; The Strength Changes size and the wind speed that characterize fitful wind respectively change speed; For example; Fitful wind changed to 20 meter per seconds from 10 meter per seconds in 10 seconds, it is 20 meter per seconds-10 meter per second=10 meter per seconds that wind speed changes amplitude, and the wind speed transformation period is 10 seconds; Otherwise fitful wind changed to 10 meter per seconds from 20 meter per seconds in 10 seconds, and it is 10 meter per seconds-20 meter per second=-10 meter per seconds that wind speed changes amplitude, and the wind speed transformation period is 10 seconds.The unit time wind speed that the wind speed transformation period that changes amplitude and fitful wind according to the wind speed of fitful wind can calculate fitful wind changes amplitude (that is, wind speed variation amplitude is divided by the wind speed transformation period).Therefore, the unit time wind speed of fitful wind changes the eigenvalue that amplitude can be used as fitful wind.Be in when moving below the rated wind speed at current gust load early warning plane; The unit time wind speed that can use the variation of the output power of current gust load early warning plane in the scheduled time to characterize fitful wind changes amplitude (promptly; The unit time wind speed that can obtain fitful wind according to the variation of the output power of current gust load early warning plane in the scheduled time changes amplitude); The unit time wind speed of fitful wind changes amplitude more greatly, and the fluctuation of the output power of current gust load early warning plane is also big more.Be in when moving more than the rated wind speed at current gust load early warning plane; The unit time wind speed that can use the variation at the blade pitch angle of current gust load early warning plane in the scheduled time to characterize fitful wind changes amplitude (promptly; The unit time wind speed that can obtain fitful wind according to the variation at the blade pitch angle of current gust load early warning plane in the scheduled time changes amplitude); The unit time wind speed of fitful wind changes amplitude more greatly, and the variation at the blade pitch angle of current gust load early warning plane is also big more.Through above-mentioned relation, just can obtain the eigenvalue of fitful wind, Fig. 2 shows the schematic representation that obtains the eigenvalue of current fitful wind according to the running state of current gust load early warning plane.
Under normal circumstances, the blade rotational speed of current gust load early warning plane is controlled in the safety range.(secure threshold is greater than foregoing predetermined threshold when the unit time of current fitful wind wind speed variation amplitude exceeds the secure threshold of current gust load early warning plane; It is very fast to show that gustiness changes); The change oar unit of current gust load early warning plane and torque control unit possibly can't in time respond, and the blade rotational speed of current gust load early warning plane can surpass the scope of normal operation.Therefore, in this case, current gust load early warning plane starts the dead halt pattern and shuts down.At this moment, current gust load early warning plane can send to wind energy turbine set level control unit 2 with alarm signal, and each wind-driven generator in the wind energy turbine set level control unit 2 control wind energy turbine set is shut down, and is in a safe condition to guarantee each wind-driven generator.
Different fitful wind eigenvalue (the unit time wind speed of current fitful wind changes amplitude) can be controlled speed by corresponding different change oars.When fitful wind eigenvalue during less than predetermined threshold, wind energy turbine set level control unit 2 does not carry out control operation to each wind-driven generator.As stated; If the eigenvalue of current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane; Then wind energy turbine set level control unit 2 can become the oar operation to each wind-driven generator that is arranged in the wind energy turbine set according to the change oar speed corresponding with the eigenvalue of current fitful wind; Change the blade pitch angle of each wind-driven generator, make each wind-driven generator under rated power, move.For example, when the fitful wind eigenvalue greater than predetermined threshold during less than first limit value set, wind energy turbine set level control unit 2 becomes each wind-driven generator of oar rate action control according to first; When the fitful wind eigenvalue greater than first limit value of setting during less than second limit value set, wind energy turbine set level control unit 2 becomes each wind-driven generator of oar rate action control according to second, the rest may be inferred.That is, the fitful wind eigenvalue is big more, and it is also big more to become oar speed, and blade is become oar quickly.
Fig. 3 is the schematic representation of the change oar control of wind-driven generator.Each blade (blade) of wind-driven generator and wind wheel plane of rotation (during the wind wheel rotation blade shank inswept plane) shape is called established angle at an angle, is also referred to as propeller pitch angle, and as shown in Figure 3, wherein, hatching is partly represented the cross section of blade.When the blade pitch angle was 0 ° of left and right sides, power coefficient was maximum relatively, and this angular range is called generating state blade frequent movement angular range.If the blade pitch angle increases, then power coefficient will obviously reduce.When propeller pitch angle was 90 ° of left and right sides, blade was static, and this angular range is called the shutdown angular range.The change oar unit of wind-driven generator is through changing the blade pitch angle;, wind speed follows the trail of maximum wind speed when being lower than rated wind speed with absorbing wind energy as far as possible; When wind speed is higher than rated wind speed, become the oar unit through adjustment blade pitch angle, change the effect of air-flow to blade; Can reduce the gust load of wind-driven generator, make wind-driven generator under rated power, move.
Each wind-driven generator in the wind energy turbine set is apart far away, and spacing each other can reach hundreds of rice usually.Therefore; Arrive at fitful wind before the seat in the plane point of other each wind-driven generator; Wind energy turbine set level control unit 2 sends control command according to the eigenvalue of current fitful wind in advance; The problem that lags behind with regard to the control unit control action of having avoided wind-driven generator self like this reaches the purpose that reduces the wind-driven generator gust load.
Describe below according to wind energy turbine set gust load pre-warning and control method of the present invention, Fig. 4 is the flow chart of wind energy turbine set gust load pre-warning and control method according to an exemplary embodiment of the present invention.
As stated, in wind energy turbine set, be furnished with a plurality of wind-driven generators, at least one wind-driven generator that is distributed in the peripheral position that is positioned at wind energy turbine set wind-engaging forward position of wind energy turbine set is as at least one subsequent use gust load early warning plane.
With reference to Fig. 4,, obtain the wind angle of wind energy turbine set in step 401.Anemometer tower that can be from be arranged in wind energy turbine set obtains the wind angle of wind energy turbine set.Perhaps, can obtain the wind vane angle of each wind-driven generator that is arranged in the wind energy turbine set, calculate the mean value of wind vane angle, with the wind angle of the mean value that calculates as wind energy turbine set.
In step 402, select current gust load early warning plane from said at least one subsequent use gust load early warning plane to said wind angle according to said wind angle.
Can calculate the coordinate components of seat in the plane point coordinates on the wind angle direction of wind energy turbine set of said at least one subsequent use gust load early warning plane, and in selection and the coordinate components the corresponding alternative gust load early warning plane of maximum value as current gust load early warning plane.
In step 403, obtain the eigenvalue of current fitful wind according to the running state of current gust load early warning plane.Can be according to the eigenvalue of the blade pitch angle of current gust load early warning plane and the current fitful wind of at least a acquisition in the output power.The eigenvalue of current fitful wind can be that the unit time wind speed of current fitful wind changes amplitude.Be in when moving below the rated wind speed at current gust load early warning plane, the unit time wind speed that can obtain current fitful wind according to the variation of the output power of current gust load early warning plane in the scheduled time changes amplitude.Be in when moving more than the rated wind speed at current gust load early warning plane, the unit time wind speed that can obtain current fitful wind according to the variation at the blade pitch angle of current gust load early warning plane in the scheduled time changes amplitude.
In step 404, whether the eigenvalue of confirming current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane.
If the eigenvalue of current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane; Then in step 405; According to the change oar speed corresponding each wind-driven generator that is arranged in the wind energy turbine set is become the oar operation with the eigenvalue of current fitful wind; Change the blade pitch angle of each wind-driven generator, make each wind-driven generator under rated power, move.
If the definite result in step 404 is that then in step 405, whether the eigenvalue of confirming current fitful wind is less than predetermined threshold.
If the eigenvalue of current fitful wind less than predetermined threshold, then turns back to step 403.
If the definite result in step 406 is not; Then show the secure threshold of the eigenvalue of current fitful wind greater than current gust load early warning plane; At this moment, in step 407, current gust load early warning plane is shut down; And each wind-driven generator in the wind energy turbine set is controlled as shutdown, is in a safe condition to guarantee each wind-driven generator.
Because the gust load early warning plane is in the forward position of the direction of the wind comes from, therefore need select bigger mechanical part and the bigger electric component of capacity of bearing capacity for the gust load early warning plane.In addition, need not all increases Component Design intensity and electric component design margin to each wind-driven generator in the wind energy turbine set, greatly reduces the design cost and the manufacture cost of wind-driven generator like this.In addition; Gust load early warning plane other wind-driven generator in wind energy turbine set provides the fitful wind early warning; Not only obtained the wind speed change information of wind energy turbine set in advance; Solve the change oar action hysteresis quality problem in the wind energy turbine set control in the past, also efficiently solved the problem of the change oar unit fatigue load increase that causes owing to the increase that becomes oar speed.
Wind energy turbine set gust load pre-alarming control system and method have been used gust load early warning plane scheme according to the present invention, can obtain fitful wind information in advance, reduce the gust load of other wind-driven generator in the wind energy turbine set; Through obtaining the operation of fitful wind information Control wind-driven generator in advance, reduce to shut down number of times, increase generating dutation, promote the availability of wind energy turbine set; The present invention implements simply, and the supervisory system of existing wind energy turbine set level capable of using through simple modifications, just can realize the present invention; The present invention can significantly reduce gust load, reduces component costs, and input-output ratio is high.
Though the present invention is specifically described with reference to its exemplary embodiment and is shown; But will be understood by those skilled in the art that; Under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can carry out the various changes of form and details to it.
Claims (18)
1. wind energy turbine set gust load pre-alarming control system comprises:
At least one subsequent use gust load early warning plane, said at least one subsequent use gust load early warning plane are to be distributed at least one peripheral wind-driven generator of wind energy turbine set, are positioned at the position in wind energy turbine set wind-engaging forward position;
Wind energy turbine set level control unit; Obtain the wind angle of wind energy turbine set; And select current gust load early warning plane from said at least one subsequent use gust load early warning plane to said wind angle according to said wind angle, obtain the eigenvalue of current fitful wind according to the running state of current gust load early warning plane
Wherein, If the eigenvalue of current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane; Then wind energy turbine set level control unit becomes the oar operation according to the change oar speed corresponding with the eigenvalue of current fitful wind to each wind-driven generator that is arranged in the wind energy turbine set; Change the blade pitch angle of each wind-driven generator, make each wind-driven generator under rated power, move.
2. wind energy turbine set gust load pre-alarming control system according to claim 1, wherein, the anemometer tower of wind energy turbine set level control unit from be arranged in wind energy turbine set obtains the wind angle of wind energy turbine set.
3. wind energy turbine set gust load pre-alarming control system according to claim 1; Wherein, Wind energy turbine set level control unit obtains the wind vane angle of each wind-driven generator that is arranged in the wind energy turbine set, calculates the mean value of wind vane angle, with the wind angle of the mean value that calculates as wind energy turbine set.
4. according to claim 2 or 3 described wind energy turbine set gust load pre-alarming control systems; Wherein, Wind energy turbine set level control unit calculates the coordinate components of seat in the plane point coordinates on the wind angle direction of wind energy turbine set of said at least one subsequent use gust load early warning plane, and in selection and the coordinate components the corresponding alternative gust load early warning plane of maximum value as current gust load early warning plane.
5. wind energy turbine set gust load pre-alarming control system according to claim 4, wherein, wind energy turbine set level control unit is according to the eigenvalue of the blade pitch angle of current gust load early warning plane and the current fitful wind of at least a acquisition in the output power.
6. wind energy turbine set gust load pre-alarming control system according to claim 5, wherein, the eigenvalue of current fitful wind is that the unit time wind speed of current fitful wind changes amplitude.
7. wind energy turbine set gust load pre-alarming control system according to claim 6; Wherein, Be in when moving below the rated wind speed at current gust load early warning plane, wind energy turbine set level control unit changes amplitude according to the unit time wind speed that the variation of the output power of current gust load early warning plane in the scheduled time obtains current fitful wind.
8. wind energy turbine set gust load pre-alarming control system according to claim 6; Wherein, Be in when moving more than the rated wind speed at current gust load early warning plane, wind energy turbine set level control unit changes amplitude according to the unit time wind speed that the variation at the blade pitch angle of current gust load early warning plane in the scheduled time obtains current fitful wind.
9. wind energy turbine set gust load pre-alarming control system according to claim 6; Wherein, If the unit time wind speed of current fitful wind changes the secure threshold that amplitude exceeds current gust load early warning plane; Then current gust load early warning plane is shut down, and alarm signal is sent to wind energy turbine set level control unit, and each wind-driven generator in the wind energy turbine set level control unit control wind energy turbine set is shut down.
10. wind energy turbine set gust load pre-warning and control method; In wind energy turbine set, be furnished with a plurality of wind-driven generators; At least one wind-driven generator that is distributed in the peripheral position that is positioned at wind energy turbine set wind-engaging forward position of wind energy turbine set is as at least one subsequent use gust load early warning plane, and said method comprises:
Obtain the wind angle of wind energy turbine set;
Select current gust load early warning plane according to said wind angle from said at least one subsequent use gust load early warning plane to said wind angle;
Obtain the eigenvalue of current fitful wind according to the running state of current gust load early warning plane;
If the eigenvalue of current fitful wind is greater than predetermined threshold and less than the secure threshold of current gust load early warning plane; Then each wind-driven generator that is arranged in the wind energy turbine set is become the oar operation according to the change oar speed corresponding with the eigenvalue of current fitful wind; Change the blade pitch angle of each wind-driven generator, make each wind-driven generator under rated power, move.
11. wind energy turbine set gust load pre-warning and control method according to claim 10, wherein, the step of obtaining the wind angle of wind energy turbine set comprises: the anemometer tower from be arranged in wind energy turbine set obtains the wind angle of wind energy turbine set.
12. wind energy turbine set gust load pre-alarming control system according to claim 10; Wherein, The step of obtaining the wind angle of wind energy turbine set comprises: the wind vane angle of obtaining each wind-driven generator that is arranged in the wind energy turbine set; Calculate the mean value of wind vane angle, with the wind angle of the mean value that calculates as wind energy turbine set.
13. according to claim 11 or 12 described wind energy turbine set gust load pre-warning and control methods; Wherein, Select the step of current gust load early warning plane to comprise: calculate the coordinate components of seat in the plane point coordinates on the wind angle direction of wind energy turbine set of said at least one subsequent use gust load early warning plane, and in selection and the coordinate components the corresponding alternative gust load early warning plane of maximum value as current gust load early warning plane.
14. wind energy turbine set gust load pre-warning and control method according to claim 13, wherein, according to the eigenvalue of the blade pitch angle of current gust load early warning plane and the current fitful wind of at least a acquisition in the output power.
15. wind energy turbine set gust load pre-warning and control method according to claim 14, wherein, the eigenvalue of current fitful wind is that the unit time wind speed of current fitful wind changes amplitude.
16. wind energy turbine set gust load pre-warning and control method according to claim 15; Wherein, Be in when moving below the rated wind speed at current gust load early warning plane, the unit time wind speed that obtains current fitful wind according to the variation of the output power of current gust load early warning plane in the scheduled time changes amplitude.
17. wind energy turbine set gust load pre-warning and control method according to claim 15; Wherein, Be in when moving more than the rated wind speed at current gust load early warning plane, the unit time wind speed that obtains current fitful wind according to the variation at the blade pitch angle of current gust load early warning plane in the scheduled time changes amplitude.
18. wind energy turbine set gust load pre-warning and control method according to claim 15; Wherein, If the unit time wind speed of current fitful wind changes the secure threshold that amplitude exceeds current gust load early warning plane; Then current gust load early warning plane is shut down, and each wind-driven generator in the control wind energy turbine set is shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440051.2A CN102493918B (en) | 2011-12-23 | 2011-12-23 | System and method for pre-warning and controlling gust load of wind power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440051.2A CN102493918B (en) | 2011-12-23 | 2011-12-23 | System and method for pre-warning and controlling gust load of wind power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102493918A true CN102493918A (en) | 2012-06-13 |
| CN102493918B CN102493918B (en) | 2014-03-26 |
Family
ID=46185770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110440051.2A Active CN102493918B (en) | 2011-12-23 | 2011-12-23 | System and method for pre-warning and controlling gust load of wind power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102493918B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321840A (en) * | 2013-06-09 | 2013-09-25 | 广东明阳风电产业集团有限公司 | Anti-typhoon control method for wind power plant |
| CN105051364A (en) * | 2012-10-31 | 2015-11-11 | 伊斯帕维斯塔实验室经济利益分组 | Method for calculating and correcting the angle of attack in a wind turbine farm |
| CN106194597A (en) * | 2016-07-06 | 2016-12-07 | 青岛华创风能有限公司 | Strong wind safe early warning control method in the looped network of a kind of wind power generating set |
| CN107762726A (en) * | 2016-08-15 | 2018-03-06 | 北京金风科创风电设备有限公司 | Wind-driven generator cluster pitch control method and system |
| CN107762729A (en) * | 2016-08-19 | 2018-03-06 | 北京金风科创风电设备有限公司 | Yaw control method and control system for wind power plant |
| CN107781105A (en) * | 2016-08-31 | 2018-03-09 | 北京天诚同创电气有限公司 | The pitch control method and device of wind-driven generator |
| CN109958577A (en) * | 2017-12-22 | 2019-07-02 | 通用电气公司 | System and method for protecting wind turbine during fitful wind |
| CN110088460A (en) * | 2016-12-16 | 2019-08-02 | 乌本产权有限公司 | Method for controlling wind energy facility |
| CN110399994A (en) * | 2018-04-17 | 2019-11-01 | 江苏金风科技有限公司 | The typhoon method for early warning and equipment of wind power plant |
| CN111396249A (en) * | 2020-03-31 | 2020-07-10 | 新疆金风科技股份有限公司 | Method and device for reducing tower load under gust wind condition |
| CN111997831A (en) * | 2020-09-01 | 2020-11-27 | 新疆金风科技股份有限公司 | Load control method and device of wind turbine generator |
| CN112185038A (en) * | 2020-09-29 | 2021-01-05 | 杭州郎稳智能科技有限公司 | Safe recovery power generation system |
| CN114198267A (en) * | 2021-11-08 | 2022-03-18 | 华能大理风力发电有限公司 | Operation control method and system for wind generating set used for extreme gust |
| CN114689215A (en) * | 2022-03-16 | 2022-07-01 | 国网甘肃省电力公司电力科学研究院 | Method for monitoring fracture of connecting bolt of blade of wind generating set |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1606658A (en) * | 2001-07-31 | 2005-04-13 | 艾劳埃斯·乌本 | Early-warning system for wind power installations |
| CN1975155A (en) * | 2005-11-29 | 2007-06-06 | 通用电气公司 | Windpark turbine control system and method for wind condition estimation and performance optimization |
| CN101012809A (en) * | 2007-02-08 | 2007-08-08 | 上海交通大学 | Wind vane and output power based wind mill leeway control method |
| CN101461116A (en) * | 2004-12-17 | 2009-06-17 | 再生动力***股份公司 | Power control of a wind farm and method therefor |
| CN101520026A (en) * | 2008-02-29 | 2009-09-02 | 通用电气公司 | Wind turbine plant high wind derating control |
| CN101634722A (en) * | 2008-07-22 | 2010-01-27 | 西门子公司 | Method and arrangement for the forecast of wind-resources |
| WO2011000453A2 (en) * | 2009-06-29 | 2011-01-06 | Robert Bosch Gmbh | Wind power plant with a plurality of wind power devices and method for controlling the wind power plant |
| CN102168651A (en) * | 2011-04-07 | 2011-08-31 | 北京金风科创风电设备有限公司 | Fan operation method, wind measuring device and wind generating set |
| CN102251926A (en) * | 2010-07-15 | 2011-11-23 | 大唐南京自动化有限公司 | Turbulence suppression method of wind driven generator |
-
2011
- 2011-12-23 CN CN201110440051.2A patent/CN102493918B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1606658A (en) * | 2001-07-31 | 2005-04-13 | 艾劳埃斯·乌本 | Early-warning system for wind power installations |
| CN101461116A (en) * | 2004-12-17 | 2009-06-17 | 再生动力***股份公司 | Power control of a wind farm and method therefor |
| CN1975155A (en) * | 2005-11-29 | 2007-06-06 | 通用电气公司 | Windpark turbine control system and method for wind condition estimation and performance optimization |
| CN101012809A (en) * | 2007-02-08 | 2007-08-08 | 上海交通大学 | Wind vane and output power based wind mill leeway control method |
| CN101520026A (en) * | 2008-02-29 | 2009-09-02 | 通用电气公司 | Wind turbine plant high wind derating control |
| CN101634722A (en) * | 2008-07-22 | 2010-01-27 | 西门子公司 | Method and arrangement for the forecast of wind-resources |
| WO2011000453A2 (en) * | 2009-06-29 | 2011-01-06 | Robert Bosch Gmbh | Wind power plant with a plurality of wind power devices and method for controlling the wind power plant |
| CN102251926A (en) * | 2010-07-15 | 2011-11-23 | 大唐南京自动化有限公司 | Turbulence suppression method of wind driven generator |
| CN102168651A (en) * | 2011-04-07 | 2011-08-31 | 北京金风科创风电设备有限公司 | Fan operation method, wind measuring device and wind generating set |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105051364A (en) * | 2012-10-31 | 2015-11-11 | 伊斯帕维斯塔实验室经济利益分组 | Method for calculating and correcting the angle of attack in a wind turbine farm |
| CN105051364B (en) * | 2012-10-31 | 2018-11-16 | 伊斯帕维斯塔实验室经济利益分组 | Method for calculating and correcting the angle of attack in wind turbine farm |
| CN103321840A (en) * | 2013-06-09 | 2013-09-25 | 广东明阳风电产业集团有限公司 | Anti-typhoon control method for wind power plant |
| CN103321840B (en) * | 2013-06-09 | 2015-08-12 | 广东明阳风电产业集团有限公司 | A kind of Anti-typhoon control method for wind power plant |
| CN106194597A (en) * | 2016-07-06 | 2016-12-07 | 青岛华创风能有限公司 | Strong wind safe early warning control method in the looped network of a kind of wind power generating set |
| CN107762726A (en) * | 2016-08-15 | 2018-03-06 | 北京金风科创风电设备有限公司 | Wind-driven generator cluster pitch control method and system |
| CN107762726B (en) * | 2016-08-15 | 2019-04-02 | 北京金风科创风电设备有限公司 | Wind-driven generator cluster pitch control method and system |
| CN107762729A (en) * | 2016-08-19 | 2018-03-06 | 北京金风科创风电设备有限公司 | Yaw control method and control system for wind power plant |
| CN107762729B (en) * | 2016-08-19 | 2019-06-04 | 北京金风科创风电设备有限公司 | Yaw control method and control system for wind power plant |
| CN107781105A (en) * | 2016-08-31 | 2018-03-09 | 北京天诚同创电气有限公司 | The pitch control method and device of wind-driven generator |
| CN107781105B (en) * | 2016-08-31 | 2019-05-07 | 北京天诚同创电气有限公司 | The pitch control method and device of wind-driven generator |
| CN110088460A (en) * | 2016-12-16 | 2019-08-02 | 乌本产权有限公司 | Method for controlling wind energy facility |
| US10995730B2 (en) | 2016-12-16 | 2021-05-04 | Wobben Properties Gmbh | Method for controlling a wind turbine |
| CN109958577A (en) * | 2017-12-22 | 2019-07-02 | 通用电气公司 | System and method for protecting wind turbine during fitful wind |
| CN109958577B (en) * | 2017-12-22 | 2023-07-25 | 通用电气公司 | System and method for protecting wind turbines during gusts |
| CN110399994A (en) * | 2018-04-17 | 2019-11-01 | 江苏金风科技有限公司 | The typhoon method for early warning and equipment of wind power plant |
| CN110399994B (en) * | 2018-04-17 | 2022-11-01 | 江苏金风科技有限公司 | Typhoon early warning method and device for wind power plant |
| CN111396249B (en) * | 2020-03-31 | 2022-08-30 | 新疆金风科技股份有限公司 | Method and device for reducing tower load under gust wind condition |
| CN111396249A (en) * | 2020-03-31 | 2020-07-10 | 新疆金风科技股份有限公司 | Method and device for reducing tower load under gust wind condition |
| CN111997831A (en) * | 2020-09-01 | 2020-11-27 | 新疆金风科技股份有限公司 | Load control method and device of wind turbine generator |
| CN111997831B (en) * | 2020-09-01 | 2021-11-19 | 新疆金风科技股份有限公司 | Load control method and device of wind turbine generator |
| CN112185038A (en) * | 2020-09-29 | 2021-01-05 | 杭州郎稳智能科技有限公司 | Safe recovery power generation system |
| CN112185038B (en) * | 2020-09-29 | 2024-03-08 | 杭州郎稳智能科技有限公司 | Safe recovery power generation system |
| CN114198267A (en) * | 2021-11-08 | 2022-03-18 | 华能大理风力发电有限公司 | Operation control method and system for wind generating set used for extreme gust |
| CN114198267B (en) * | 2021-11-08 | 2023-11-03 | 华能大理风力发电有限公司 | Operation control method and system for wind generating set with extreme gusts |
| CN114689215A (en) * | 2022-03-16 | 2022-07-01 | 国网甘肃省电力公司电力科学研究院 | Method for monitoring fracture of connecting bolt of blade of wind generating set |
| CN114689215B (en) * | 2022-03-16 | 2024-02-23 | 国网甘肃省电力公司电力科学研究院 | Wind generating set blade connecting bolt fracture monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102493918B (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102493918B (en) | System and method for pre-warning and controlling gust load of wind power station | |
| EP2829724B1 (en) | Wind turbines and methods for controlling wind turbine loading | |
| EP3400384B1 (en) | Control of a wind power plant | |
| EP2405133B2 (en) | Wind farm and method of controlling power production of a wind turbine of a wind farm | |
| Aho et al. | A tutorial of wind turbine control for supporting grid frequency through active power control | |
| EP3256723B1 (en) | Control system for wind turbine having multiple rotors arranged to control support arm orientation | |
| EP3377757B1 (en) | Control system and method for wind turbine having multiple rotors | |
| EP2877742B1 (en) | Wind turbine tilt optimization and control | |
| US8115330B2 (en) | Wind turbine and method for operating a wind turbine | |
| EP3004634B1 (en) | Wind power plant controller | |
| CN104716671B (en) | Black-start method for power grid | |
| CN105201739B (en) | A kind of load controlled method of Wind turbines | |
| US20130119660A1 (en) | Wind-power generation system and control method for the same | |
| EP3317517A1 (en) | Initialisation of wind turbine control functions | |
| KR20120132300A (en) | Wind power generating equipment and control method thereof | |
| CN103732914B (en) | Method of functioning of aerogenerator and controller thereof | |
| CN103321840B (en) | A kind of Anti-typhoon control method for wind power plant | |
| CN105449722A (en) | Limited power control method of wind driven power generator group | |
| CN109488529A (en) | A kind of Wind turbines and its Anti-Typhoon intelligent control method | |
| CN107630785B (en) | Wind turbines Protection control system under one kind of multiple operating conditions | |
| EP3764503B1 (en) | Power converter control and operation | |
| US20180066629A1 (en) | Method for operating a wind turbine | |
| KR101475274B1 (en) | Pitch control system and method of wind generator | |
| CN114718811B (en) | Self-adaptive control method for monitoring fan blade state based on GPS | |
| CN108412690B (en) | Three-section type high-wind-energy-capture-rate wind generating set yawing method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |