CN107228046B - Wind turbine generator predictive yaw control method, device and system - Google Patents
Wind turbine generator predictive yaw control method, device and system Download PDFInfo
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- CN107228046B CN107228046B CN201610176883.0A CN201610176883A CN107228046B CN 107228046 B CN107228046 B CN 107228046B CN 201610176883 A CN201610176883 A CN 201610176883A CN 107228046 B CN107228046 B CN 107228046B
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000005611 electricity Effects 0.000 claims description 8
- 201000009482 yaws Diseases 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/321—Wind directions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/40—Type of control system
- F05B2270/404—Type of control system active, predictive, or anticipative
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a wind turbine generator predictive yaw control method, a wind turbine generator predictive yaw control device and a wind turbine generator predictive yaw control system, wherein the method comprises the following steps: acquiring wind directions collected by wind direction detectors at wind turbine generators in a wind power plant in real time; identifying whether the current wind turbine generator is the head-mounted wind turbine generator which is firstly windward in the wind direction; and if the recognition result is 'no', setting the yaw starting time of the current wind turbine generator according to the wind direction of the current wind turbine generator and the relative angle of the wind direction of the front exhaust wind turbine generator of the current wind turbine generator along the wind direction. According to the technical scheme, the power generation capacity of the wind turbine generator can be improved and the load of the wind turbine generator can be reduced in the yawing process.
Description
Technical field
The present invention relates to technical field of wind power more particularly to a kind of Wind turbines foreseeability Yaw control method, device and
System.
Background technique
Currently, each Wind turbines, which can only obtain, works as in the yaw control of wind power generating set (referred to as " Wind turbines ")
The wind direction of preceding position, since wind direction has fluctuation and randomness, when wind vector, Wind turbines need to wait one section
Time determines and is yawed again after wind direction is stablized.This has resulted in the loss of generated energy, simultaneously because not having face wind, wind-powered electricity generation
Unit will generate very big unbalance loading, fatigue damage resulting from and mechanical shock, and leverage Wind turbines uses the longevity
Life.
Summary of the invention
The present invention provides a kind of Wind turbines foreseeability Yaw control method, device and system, to mention in During yaw
The generated energy of Wind turbines is risen, load of wind turbine generator is reduced.
In order to achieve the above objectives, the embodiment provides a kind of Wind turbines foreseeability Yaw control method, packets
It includes：The wind direction of the wind direction detector acquisition in wind power plant at each Wind turbines is obtained in real time；Identify current Wind turbines along institute
Whether state on wind direction is head motor exhaust group at first windward；If recognition result is "No", according to the current Wind turbines
The relative angle of the wind direction at place and the wind direction along the wind direction at the front-seat Wind turbines of the current Wind turbines, setting
The yaw of the current Wind turbines starts the time.
The embodiments of the present invention also provide a kind of Wind turbines foreseeability yaw control device, described device includes：Wind
To module is obtained, for obtaining the wind direction of the wind direction detector acquisition in wind power plant at each Wind turbines in real time；Unit is known
Other module, whether current Wind turbines are being head motor exhaust group at first windward along the wind direction for identification；First partially
Boat control module, if the recognition result for the unit identification module is "No", at the current Wind turbines
The relative angle of wind direction and the wind direction along the wind direction at the front-seat Wind turbines of the current Wind turbines, described in setting
The yaw of current Wind turbines starts the time.
The embodiments of the present invention also provide a kind of Wind turbines foreseeability yaw control system, the system comprises：If
Set the wind direction detector and Wind turbines foreseeability yaw control device as described above in wind power plant at each Wind turbines.
Wind turbines foreseeability Yaw control method provided in an embodiment of the present invention, device and system, for along wind direction
Non- non-head motor exhaust group at first windward, by the phase of wind direction and the wind direction at its front-seat Wind turbines at these Wind turbines
Angle is counted；And according to these relative angles, the yaw starting time of non-head motor exhaust group is set.In other words, lead to
The adjustment yaw starting time is spent, to adjust the waiting time of yaw, to realize the unit of maximized generating efficiency and minimum
Load.
Detailed description of the invention
Fig. 1 is that wind speed and direction transmits schematic diagram in existing wind power plant；
Fig. 2 is the method flow diagram of Wind turbines foreseeability Yaw control method one embodiment provided by the invention；
Fig. 3 is the method flow diagram of another embodiment of Wind turbines foreseeability Yaw control method provided by the invention；
Fig. 4 is the topology diagram of wireless bridge provided by the invention；
Fig. 5 is the method flow diagram of Wind turbines foreseeability Yaw control method further embodiment provided by the invention；
Fig. 6 is the structural block diagram of Wind turbines foreseeability yaw control device one embodiment provided by the invention；
Fig. 7 is the structural block diagram of another embodiment of Wind turbines foreseeability yaw control device provided by the invention；
Fig. 8 is the structural block diagram of the first yaw control module provided by the invention；
Fig. 9 is the structural block diagram of the second yaw control module provided by the invention.
Drawing reference numeral explanation
610- wind direction obtains module, 620- unit identification module, 630- first and yaws control module, the yaw control of 640- second
Molding block, 650- wireless bridge module, the first statistic unit of 631-, the first start unit of 632-, the first stop unit of 633-,
The second statistic unit of 641-, the second start unit of 642-, the second stop unit of 643-.
Specific embodiment
Fig. 1 is that wind speed and direction transmits schematic diagram in existing wind power plant.It is assumed that currently using direct north as upper in wind power plant
Wind direction, each Wind turbines arrange successively from direct north southwards as windward first row, second row ... Wind turbines.Figure
Shown in 1, the wind speed along upwind side first row Wind turbines is V, and wind direction and first row Wind turbines horizontal sextant angle are θ,
The distance of first row Wind turbines to second row Wind turbines is X, distance of the second row Wind turbines to third motor exhaust group
For Y, then it is T1, T1=X/ (V*sin that the hearsay at first row Wind turbines, which is delivered to the time at second row Wind turbines,
θ), the hearsay at first row Wind turbines is delivered to the time T2, T2=(X+Y)/(V*sin θ) needed at third motor exhaust group.
Above-mentioned formula neglects wind speed and successively decreases.
Here illustrate, since the wind direction in wind power plant is fluctuation, determined most in strict accordance with the actual transfer direction of wind
First the process complexity of head motor exhaust group windward is larger, this need real-time monitoring blow to wind power plant wind direction variation.But
It is that, although wind direction is real-time fluctuations, whole upwind side is metastable, for example, in China's Mainland summer with south wind
Based on, and to winter then based on north wind, these features are based on, it can be by positive wind direction (such as positive south wind or the due north of windward
Wind) as the wind direction in the present embodiment, corresponding head motor exhaust group windward as meets the wind turbine in the righteous style and practice direction at first
Group, the first row Wind turbines of example as shown in figure 1 as meet the Wind turbines of positive north wind at first.
Inventive concept of the invention, be based on wind direction transmittance process is in metastable state in a long time when, to wind
The yaw starting time of the Wind turbines of heel row in electric field on wind direction is adjusted, and is shifted to an earlier date with controlling the Wind turbines of heel row
The yaw maneuver of front-seat Wind turbines is chased, so as to shorten yaw waiting time, realizes quickly to wind, improves the hair of Wind turbines
Electrical efficiency, while reducing rack load.
Embodiment one
Fig. 2 is the method flow diagram of Wind turbines foreseeability Yaw control method one embodiment provided by the invention, should
The executing subject of method can be the control device that each Wind turbines are arranged in, or the control system of wind power plant.Such as Fig. 2
It is shown, by taking executing subject is that the control device of each Wind turbines is arranged in as an example, the Wind turbines foreseeability Yaw control method
It specifically includes：
S210 obtains the wind direction of the wind direction detector acquisition in wind power plant at each Wind turbines in real time.
For example, for wind direction detector and this programme executing subject on same Wind turbines, can by the executing subject with
The yaw systems of Wind turbines communicates to connect, or directly with the wind direction detector such as wind vane that is arranged on the Wind turbines into
Row communication connection, to directly or indirectly obtain the information of the wind direction of wind direction detector detection.
It, can be by the wind at each Wind turbines for wind direction detector and this programme executing subject not on same Wind turbines
The master control system of wind power plant is transmitted to by Wind turbines to information, is then again distributed to these wind direction informations by master control system
On each Wind turbines, so that the executing subject being located on each Wind turbines obtains these wind direction informations.Each Wind turbines and wind-powered electricity generation
The communication modes such as existing fiber network or cordless communication network can be passed through between the master control system of field and carry out wind direction information interaction.This reality
It applies example and each Wind turbines is shared with the mode of wind direction information at its position without limitation.
S220 identifies whether current Wind turbines are being head motor exhaust group at first windward along wind direction.
For example, the geographical location information of each Wind turbines in wind power plant is stored in advance at each Wind turbines, according to the ground
Reason location information and the wind direction that detects, it can be determined that go out whether current Wind turbines are being head at first windward along wind direction
Motor exhaust group.
Specifically, the wind direction in the present embodiment can be the actual direction of windward, or the forward direction side of windward
To, such as due south direction, direct north.It replaces actual wind direction that can greatly reduce confirmation with the direction of windward to meet at first
The complexity of the head motor exhaust group of wind, while not influencing subsequent operation.
S230, if recognition result is "No", the current wind-powered electricity generation according to the wind direction at current Wind turbines and along wind direction
The yaw starting time of current Wind turbines is arranged in the relative angle of wind direction at the front-seat Wind turbines of unit.
In general, when blowing over that the wind in wind power plant at each Wind turbines is relatively uniform or wind direction differential seat angle is not much different, edge
The heel row Wind turbines of wind direction can refer to the wind direction at front-seat Wind turbines and carry out yaw maneuver, have to without limitation
After wind to current Wind turbines, yaw maneuver is carried out further according to the wind direction that wind direction detector at current Wind turbines detects.Such as
This, can predict front and rear row Wind turbines at wind direction it is relatively uniform or close in the case where, according to front row Wind turbines at
Wind direction carries out yaw control to heel row Wind turbines in advance.
In the present embodiment, the differential seat angle between both direction is defined as to the relative angle of both direction.Specifically, according to
The differential seat angle of wind direction at current Wind turbines and the wind direction along wind direction at the front-seat Wind turbines of current Wind turbines, i.e.,
Relative angle, it can be determined that go out the situation that wind direction is relatively uniform or close at front and rear row Wind turbines.The judgement needs to count one
The situation of change of above-mentioned relative angle in the section time.It the case where according to the relative angle of the continuous durations of difference counted, can be with
The degree that wind direction is relatively uniform at front and rear row Wind turbines is judged, as wind direction at front and rear row Wind turbines is relatively uniform or close
State keep time it is longer, the stability for characterizing wind direction is better, then can shorten heel row set yaw waiting time, in advance
Into yaw state, the stability of wind direction is better, and the yaw starting time that current Wind turbines (heel row Wind turbines) are arranged gets over
In advance.
The mode of the yaw starting time of the current Wind turbines of this set (heel row Wind turbines), can make to be located at heel row
Wind turbines quickly to wind, improve the generating efficiency of wind power plant.Simultaneously as the face wind time of Wind turbines increases
, the wind direction load lateral to Wind turbines just reduces, and reduces rack load to a certain degree.
Wind turbines foreseeability Yaw control method provided in an embodiment of the present invention is transmitted in a long time based on wind direction
When process is in metastable state, the yaw starting time of the Wind turbines of the heel row in wind power plant on wind direction is adjusted
It is whole, shorten yaw waiting time, realizes quickly to wind, improve the generating efficiency of Wind turbines, while reducing rack load.
Embodiment two
Fig. 3 is the method flow diagram of Wind turbines foreseeability Yaw control method one embodiment provided by the invention, should
Method can be considered a kind of specific implementation of embodiment of the method shown in Fig. 2, and to the shared of wind direction information and current wind is arranged
The strategy of the yaw starting time of motor group is described in detail.As shown in figure 3, Wind turbines foreseeability yaw control
Method specifically includes：
S310, obtained in real time from the adjacent Wind turbines of current Wind turbines by wireless bridge in wind power plant it is each other
Wind direction at Wind turbines, and pass through the wind direction at the current Wind turbines of wind direction detector acquisition at current Wind turbines.Step
The refinement step that rapid S310 is S210.
For the executing subject being arranged on each Wind turbines be easy to by be located at same Wind turbines on wind direction
Detector is communicatively coupled, and obtains the wind direction at current Wind turbines.But the wind direction information at other Wind turbines is obtained,
It executing subject on each Wind turbines or is connect with the control system of wind power plant, to be obtained by the control system of wind power plant
It takes the information of the wind direction at other Wind turbines or establishes communication network using each Wind turbines as network node and be directly realized by
Mutual data interaction.The present embodiment gives following concrete scheme to the latter's implementation.
Each Wind turbines are used as a radio node using Spanning-Tree Protocol (spanning Tree in wind power plant
Protocol, STP) building wireless bridge.STP can be used to reduce the failure of the link in network, and provide recycling-guard.STP can
Effectively to increase system reliability, the unremitting operation of network is allowed.As shown in figure 4, STP uses IEEE in the present embodiment
The interconnection of entire wind power plant can be achieved in 802.1D standard bridge, wireless bridge after establishing.Wireless section 1 is linked with radio node 2, nothing
Line node 2 is linked with radio node 3, then radio node 1 can be linked with radio node 3.And so on, wireless bridge is adopted
Radio net bridge network topological structure is generated with STP/RSTP technology.Shadow due to wireless communication distance by Wind turbines distance
It rings, the communication between two remote Wind turbines needs other Wind turbines to provide network node.
Based on the network topology of the wireless bridge constructed in wind power plant, the executing subject on each Wind turbines can be incited somebody to action
The wind direction data at current Wind turbines that wind direction detector on current Wind turbines acquires in real time, is passed by the wireless bridge
Other each Wind turbines in wind power plant are transported to, to realize the shared of wind direction data between each Wind turbines.
S320 identifies whether current Wind turbines are being head motor exhaust group at first windward along wind direction.Step S320
Content it is identical as the content of S220.
S330, if identifying whether current Wind turbines are being that the result of head motor exhaust group at first windward is along wind direction
Current wind turbine is arranged then according to the yaw direction of current Wind turbines and its relative angle of the wind direction of position in "Yes"
The yaw of group starts the time.
Time, yaw direction and its position according to current Wind turbines are started for the yaw of head motor exhaust group
The relative angle of wind direction be configured.For example, when relative angle average in fixed statistical time window is less than predetermined angle,
Yaw waiting time t is then set, if average relative angle is respectively less than pre- in each fixed statistical time window in waiting time t
If angle, then start yaw after waiting time t.
S340, if recognition result is "No", the current wind-powered electricity generation according to the wind direction at current Wind turbines and along wind direction
The yaw starting time of current Wind turbines is arranged in the relative angle of wind direction at the front-seat Wind turbines of unit.Step S340
It is similar to the content of step S230.
Specifically, it in embodiment as shown in Figure 5, shows and is identifying whether current Wind turbines are being at first along wind direction
The method flow of two kinds after head motor exhaust group windward setting yaw starting time, respectively correspond above-mentioned steps S330 and
The thinning process of S340.As shown in figure 5, this method includes：
S501 identifies whether current Wind turbines are being head motor exhaust group at first windward along wind direction, if result
For "Yes", then S502 is executed；If NO, then S507 is executed.
S502 counts the relative angle of the yaw direction of current Wind turbines and its wind direction of position at least one
The relative angle average value of statistical time window.
Wherein, statistical time window is the time window with fixed duration, and the time window is as time goes by backward
It is mobile.For example, WindDir_30sec indicates that relative angle average value in 30 seconds, WindDir_1min indicate one in step S502
Relative angle average value in minute, WindDir_10min indicate relative angle average value in ten minutes.
The present embodiment is not limited to above-mentioned three kinds of statistical time windows.
In the present embodiment, according between the yaw position angle of current Wind turbines and the wind direction angle of present position
Relative angle, the yaw that current Wind turbines are arranged in the relative angle average value at least one above-mentioned statistical time window are opened
The dynamic time.
Specifically, for the relative angle average value of every kind of statistical time window, it is opposite at it that current Wind turbines are set
Angular average starts yaw at the end of being continuously located at the first yaw waiting time in preset threshold section.Such as：
S503, when relative angle average value is greater than 25 degree in 30 seconds, setting yaw waiting time is t1, when in t1Interior 30
When relative angle average value is consistently greater than 25 degree in second, it is determined that in t1After, starting Wind turbines yaw, i.e., in 30 seconds
Relative angle average value is greater than 25 degree, and continues t1After duration, starting yaw is determined.
S504, when relative angle average value is greater than 20 degree in one minute, setting yaw waiting time is t2, when in t2It is interior
Relative angle average value is consistently greater than 20 degree in one minute, it is determined that in t2After, starting Wind turbines yaw, i.e., one minute
Interior relative angle average value is greater than 20 degree, and continues t2After duration, starting yaw is determined.
S505, relative angle average value is greater than 15 degree in ten minutes, and setting yaw waiting time is t3, when in t3Interior ten
Relative angle average value is consistently greater than 15 degree in minute, it is determined that in t3After, starting Wind turbines yaw, i.e., in ten minutes
Relative angle average value is greater than 15 degree, and continues t3After duration, starting yaw is determined.
Here illustrate, S503, S504 and S505 can individually select an implementation, implement after can also combining.Implementation process after combination
In, the preferential implementation strategy for executing waiting time person closer compared with current time.The above-mentioned waiting time meets：t1< t2< t3.When upper
The condition stated in any strategy meets, and reaches waiting time at first, is started with the waiting time end point, executes step
S511 starts the yaw maneuver of Wind turbines.
S507 counts wind direction at current Wind turbines and along wind direction at the front-seat Wind turbines of current Wind turbines
Wind direction relative angle, in the relative angle average value of at least one statistical time window.
For example, WindDir_30sec indicates relative angle average value in 30 seconds, WindDir_1min table in step S507
Show that relative angle average value in one minute, WindDir_10min indicate relative angle average value in ten minutes.
The present embodiment is not limited to above-mentioned three kinds of statistical time windows.
In the present embodiment, the front-seat wind-powered electricity generation of current Wind turbines according to the wind direction at current Wind turbines and along wind direction
Current wind is arranged in the relative angle of wind direction at unit, the relative angle average value at least one above-mentioned statistical time window
The yaw of motor group starts the time.
Specifically, for the relative angle average value of every kind of statistical time window, it is opposite at it that current Wind turbines are set
Angular average starts yaw at the end of being continuously located at the first yaw waiting time in preset threshold section.Such as：
S508, when relative angle average value is greater than 25 degree in 30 seconds, setting yaw waiting time is t1/ 3, when in t1/3
When relative angle average value is consistently greater than 25 degree in interior 30 seconds, it is determined that in waiting time t1After/3, start Wind turbines
Yaw, i.e., relative angle average value is greater than 25 degree in 30 seconds, and continues t1After/3 durations, starting yaw is determined.
S509, relative angle average value is greater than 20 degree in one minute, and setting yaw waiting time is t2/ 3, when in t2/3
Relative angle average value is consistently greater than 20 degree in interior one minute, it is determined that in waiting time t2After/3, start Wind turbines
Yaw, i.e., relative angle average value is greater than 20 degree in one minute, and continues t2After/3 durations, starting yaw is determined.
S510, relative angle average value is greater than 15 degree in ten minutes, and setting yaw waiting time is t3/ 3, when in t3/3
Relative angle average value is consistently greater than 15 degree in interior ten minutes, it is determined that in waiting time t3After/3, start Wind turbines
Yaw, i.e., relative angle average value is greater than 15 degree in ten minutes, and continues t3After/3 durations, starting yaw is determined.
Here illustrate, S508, S509 and S510 can individually select an implementation, implement after can also combining.Implementation process after combination
In, the preferential implementation strategy for executing waiting time person closer compared with current time.When the condition satisfaction in any of the above-described strategy, and most
Waiting time is first reached, is started with the waiting time end point, step S511 is executed, starts the yaw maneuver of Wind turbines.
In the above-mentioned waiting time：t1< t2< t3, and the waiting time corresponding with head row's unit is corresponding identical.Here why will be located at
The yaw waiting time of the Wind turbines of heel row is set as the 1/3 of a motor exhaust group yaw waiting time, is based on rear air draft
The relative angle of motor group is that the wind direction at the front-seat Wind turbines of comparison makes reference, therefore, can when evaluating the stability of wind direction
Reliability is higher.
Further, S506 can be also first carried out before executing S507, counts the wind direction at current Wind turbines and edge
The relative angle of wind direction on wind direction at the front-seat Wind turbines of current Wind turbines short period before from current time
It is interior, if whether the average relative angle in 30 seconds is less than preset value (any value in such as 20 °~30 °), if the judgment is Yes, then again
The content of S507 is executed, to increase the necessity for executing subsequent step 507.
For example, the average relative angle when the wind direction in 30 seconds at the Wind turbines of front and rear row is less than preset value, then characterize
Current wind direction is more consistent at the Wind turbines of the front two rows and stablizes, then counting when executing step 507
The probability of its condition for meeting S508, S509 or S510 of relative angle is bigger, avoids unnecessary calculating process.But such as
When fruit executes step S506, the average relative angle of the wind direction in 30 seconds at the Wind turbines of front and rear row is not less than preset value, then
Characterize that current wind direction is inconsistent at the Wind turbines of the front two rows, and the stability of wind direction is poor, then heel row Wind turbines are not
It can be yawed ahead of time according to the wind direction at front-seat Wind turbines.It is held at this point, current Wind turbines are considered as a motor exhaust group
The content of row step S502.
During executing S511, S512 can also carry out, according to current unit corresponding relative angle (WindDir table
Show instantaneous relative angle), if it is located at 0 degree of section (including the continuous angular interval including 0 degree), it is inclined to determine whether to stop
Boat.
Specifically, during being yawed for head motor exhaust group as current Wind turbines, current wind-powered electricity generation is identified
Whether the relative angle of the wind direction of the yaw direction and its position of unit is located at 0 degree of section, if recognition result is "Yes",
It executes S513 and stops yaw, otherwise continue to yaw.
During being yawed for non-head motor exhaust group as current Wind turbines, the current wind turbine is identified
Whether the relative angle of the wind direction at group and the wind direction along wind direction at the front-seat Wind turbines of current Wind turbines is located at 0 degree
Section executes S513 and stops yaw, otherwise continue to yaw if recognition result is "Yes".
Wind turbines foreseeability Yaw control method provided in an embodiment of the present invention, on the basis of embodiment shown in Fig. 2,
Start the time with the yaw that current Wind turbines are arranged in the relative angle average value of statistical time window.Meanwhile for head air draft
Motor group and non-head motor exhaust group are provided with the different yaw waiting time, and the distinguishing control for carrying out the yaw time mentions
The high accuracy and reasonability of entire yaw time control.
Embodiment three
Fig. 6 is the structural block diagram of Wind turbines foreseeability yaw control device one embodiment provided by the invention, can be held
Row method and step as shown in Figure 2.As shown in fig. 6, the Wind turbines foreseeability yaw control device includes：Wind direction obtains module
610, unit identification module 620 and the first yaw control module 630, wherein：
Wind direction obtains module 610, for obtaining the wind of the wind direction detector acquisition in wind power plant at each Wind turbines in real time
To；Unit identification module 620, whether current Wind turbines are being head motor exhaust at first windward along wind direction for identification
Group；First yaw control module 630, if the recognition result for unit identification module is "No", according to current Wind turbines
The relative angle of the wind direction at place and the wind direction along wind direction at the front-seat Wind turbines of current Wind turbines, is arranged current wind-powered electricity generation
The yaw of unit starts the time.
Further, as shown in fig. 7, further including in above-mentioned Wind turbines foreseeability yaw control device：Second yaw control
Molding block 640, if the recognition result for unit identification module 620 is "Yes", according to the yaw direction of current Wind turbines
And its relative angle of the wind direction of position, the yaw starting time of current Wind turbines is set.
Further, as shown in fig. 7, further including in above-mentioned Wind turbines foreseeability yaw control device：Wireless bridge mould
Block 650, for by the wind direction detector on current Wind turbines acquire in real time wind direction data at current Wind turbines, lead to
It crosses wireless bridge and is transmitted in wind power plant other each Wind turbines；Wireless bridge is provided at each Wind turbines in wind power plant
Radio node.
Further, above-mentioned wind direction obtains module 610 and is also used to, by wireless bridge from the adjacent wind of current Wind turbines
The wind direction in wind power plant at other each Wind turbines is obtained at motor group in real time, and passes through the wind direction detection at current Wind turbines
Device obtains the wind direction at current Wind turbines.
Further, as shown in figure 8, above-mentioned first yaw control module 630 includes：
First statistic unit 631, for counting the wind direction at current Wind turbines and the current Wind turbines along wind direction
Front-seat Wind turbines at wind direction relative angle, in the relative angle average value of at least one statistical time window；First
Start unit 632, for the inclined of current Wind turbines to be arranged according to the relative angle average value of at least one statistical time window
The boat starting time.
Further, above-mentioned first start unit 632, it is average for the relative angle for every kind of statistical time window
Value, is arranged the first yaw waiting time that current Wind turbines are continuously located in preset threshold section in its relative angle average value
At the end of start yaw.
Further, as shown in figure 8, further including in above-mentioned first yaw control module 630：First stop unit 633 is used
During current Wind turbines are yawed, identify wind direction at current Wind turbines and along wind direction it is described current
Whether the relative angle of the wind direction at the front-seat Wind turbines of Wind turbines is located at 0 degree of section, if recognition result is "Yes", stops
Only yaw.
Further, as shown in figure 9, including in above-mentioned second yaw control module 640：Second statistic unit 641, is used for
The relative angle of the yaw direction of current Wind turbines and its wind direction of position is counted at least one statistical time window
Relative angle average value；Second start unit 642, for the relative angle average value according at least one statistical time window
The yaw starting time of the current Wind turbines is set.
Further, above-mentioned second start unit 642, it is average for the relative angle for every kind of statistical time window
Value, is arranged the first yaw waiting time that current Wind turbines are continuously located in preset threshold section in its relative angle average value
At the end of start yaw.
Further, as shown in figure 9, further including in above-mentioned second yaw control module 640：Second stop unit 643 is used
During current Wind turbines are yawed, the yaw direction of current Wind turbines and its wind direction of position are identified
Relative angle whether be located at 0 degree of section, if recognition result be "Yes", stop yawing.
Wind turbines foreseeability yaw control device provided in an embodiment of the present invention is transmitted in a long time based on wind direction
When process is in metastable state, the yaw starting time of the Wind turbines of the heel row in wind power plant on wind direction is adjusted
It is whole, shorten yaw waiting time, realizes quickly to wind, improve the generating efficiency of Wind turbines, while reducing rack load.
Further, on the basis of embodiment shown in Fig. 6, in Fig. 7, Fig. 8 and Fig. 9, with the opposite of statistical time window
The yaw starting time of current Wind turbines is arranged in angular average.Meanwhile for head motor exhaust group and non-head motor exhaust
Group is provided with the different yaw waiting time, and the distinguishing control for carrying out the yaw time improves entire yaw time control
Accuracy and reasonability.
Further, the embodiment of the invention also provides a kind of Wind turbines foreseeability yaw control system, the system packets
It includes：Wind direction detector in wind power plant at each Wind turbines and the precognition of the Wind turbines as shown in any in Fig. 6-Fig. 9 are set
Property yaw control device.
Further, further include in above system：The radio node of wireless bridge, the wireless bridge is arranged in wind power plant
At each Wind turbines, and connected with the Wind turbines foreseeability yaw control device being located at identical Wind turbines.
Wind turbines foreseeability yaw control system provided by the invention can promote Wind turbines in During yaw
Generated energy reduces load of wind turbine generator.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (20)
1. a kind of Wind turbines foreseeability Yaw control method, which is characterized in that including：
The wind direction of the wind direction detector acquisition in wind power plant at each Wind turbines is obtained in real time；
Identify whether current Wind turbines are being head motor exhaust group at first windward along the wind direction；
If recognition result is "No", the current wind according to the wind direction at the current Wind turbines and along the wind direction
The relative angle of wind direction at the front-seat Wind turbines of motor group, the yaw that the current Wind turbines are arranged start the time.
2. the method according to claim 1, wherein the method also includes：
If recognition result is "Yes", according to the opposite of the yaw direction of the current Wind turbines and its wind direction of position
Angle, the yaw that the current Wind turbines are arranged start the time.
3. according to the method described in claim 2, it is characterized in that, the method also includes：
The wind direction number at the current Wind turbines that the wind direction detector on the current Wind turbines is acquired in real time
According to being transmitted in wind power plant other each Wind turbines by wireless bridge；It is all provided at each Wind turbines in the wind power plant
It is equipped with the radio node of the wireless bridge.
4. according to the method described in claim 3, it is characterized in that, the real-time wind obtained in wind power plant at each Wind turbines
The wind direction acquired to detector, including：
Obtained in real time from the adjacent Wind turbines of the current Wind turbines by the wireless bridge in wind power plant it is each other
Wind direction at Wind turbines.
5. method according to any of claims 1-4, which is characterized in that it is described according to the current Wind turbines at
Wind direction and the wind direction along the wind direction at the front-seat Wind turbines of the current Wind turbines relative angle, be arranged institute
The yaw starting time of current Wind turbines is stated, including：
Count wind direction at the current Wind turbines and along the wind direction the current Wind turbines preceding motor exhaust
The relative angle of wind direction at group, in the relative angle average value of at least one statistical time window；
The yaw of the current Wind turbines is set according to the relative angle average value at least one statistical time window
Start the time.
6. according to the method described in claim 5, it is characterized in that, the basis is at least one statistical time window
The yaw starting time of the current Wind turbines is arranged in relative angle average value, including：
For the relative angle average value of statistical time window described in every kind, current Wind turbines are set in its relative angle
Average value starts yaw at the end of being continuously located at the first yaw waiting time in preset threshold section.
7. according to the method described in claim 6, it is characterized in that, the method also includes：
During the current Wind turbines are yawed, wind direction at the current Wind turbines is identified and along described
Whether the relative angle of the wind direction on wind direction at the front-seat Wind turbines of the current Wind turbines is located at 0 degree of section, if identification
As a result it is "Yes", then stops yawing.
8. the method according to any one of claim 2-4, which is characterized in that described according to the current Wind turbines
The relative angle of yaw direction and its wind direction of position, the yaw that the current Wind turbines are arranged start the time, including：
The relative angle for counting the yaw direction of the current Wind turbines and its wind direction of position is counted at least one
The relative angle average value of time window；
The yaw of the current Wind turbines is set according to the relative angle average value at least one statistical time window
Start the time.
9. according to the method described in claim 8, it is characterized in that, the basis is at least one statistical time window
The yaw starting time of the current Wind turbines is arranged in relative angle average value, including：
For the relative angle average value of statistical time window described in every kind, current Wind turbines are set in its relative angle
Average value starts yaw at the end of being continuously located at the first yaw waiting time in preset threshold section.
10. a kind of Wind turbines foreseeability yaw control device, which is characterized in that described device includes：
Wind direction obtains module, for obtaining the wind direction of the wind direction detector acquisition in wind power plant at each Wind turbines in real time；
Unit identification module, whether current Wind turbines are being head motor exhaust at first windward along the wind direction for identification
Group；
First yaw control module, if the recognition result for the unit identification module is "No", according to the current wind
The relative angle of wind direction at motor group and the wind direction along the wind direction at the front-seat Wind turbines of the current Wind turbines
Degree, the yaw that the current Wind turbines are arranged start the time.
11. device according to claim 10, which is characterized in that described device further includes：
Second yaw control module, if the recognition result for the unit identification module is "Yes", according to the current wind
The relative angle of the wind direction of the yaw direction and its position of motor group, when the yaw starting of the current Wind turbines is set
Between.
12. device according to claim 11, which is characterized in that described device further includes：
Wireless bridge module, the current wind for acquiring the wind direction detector on the current Wind turbines in real time
Wind direction data at motor group is transmitted in wind power plant other each Wind turbines by wireless bridge；Each institute in the wind power plant
State the radio node that the wireless bridge is provided at Wind turbines.
13. device according to claim 12, which is characterized in that the wind direction obtains module and is used for, by described wireless
Bridge obtains the wind direction in wind power plant at other each Wind turbines in real time from the adjacent Wind turbines of the current Wind turbines.
14. device described in any one of 0-13 according to claim 1, which is characterized in that the first yaw control module packet
It includes：
First statistic unit, for counting the wind direction at the current Wind turbines and the current wind-powered electricity generation along the wind direction
The relative angle of wind direction at the front-seat Wind turbines of unit, in the relative angle average value of at least one statistical time window；
First start unit, for working as according to the relative angle average value setting at least one statistical time window
The yaw of preceding Wind turbines starts the time.
15. device according to claim 14, which is characterized in that first start unit, for for described in every kind
The relative angle average value of statistical time window, be arranged current Wind turbines be continuously located in its described relative angle average value it is pre-
If starting yaw at the end of the first yaw waiting time in threshold interval.
16. device according to claim 15, which is characterized in that described first, which yaws control module, further includes：First stops
Stop element, for during the current Wind turbines are yawed, identify the wind direction at the current Wind turbines with
And whether the relative angle of the wind direction along the wind direction at the front-seat Wind turbines of the current Wind turbines is located at 0 degree of area
Between, if recognition result is "Yes", stop yawing.
17. device described in any one of 1-13 according to claim 1, which is characterized in that the second yaw control module packet
It includes：
Second statistic unit, for counting the relative angle of the yaw direction of the current Wind turbines and its wind direction of position
Spend the relative angle average value at least one statistical time window；
Second start unit, for working as according to the relative angle average value setting at least one statistical time window
The yaw of preceding Wind turbines starts the time.
18. device according to claim 17, which is characterized in that second start unit, for for described in every kind
The relative angle average value of statistical time window, be arranged current Wind turbines be continuously located in its described relative angle average value it is pre-
If starting yaw at the end of the first yaw waiting time in threshold interval.
19. a kind of Wind turbines foreseeability yaw control system, which is characterized in that the system comprises：It is arranged in wind power plant
Wind direction detector at each Wind turbines and the Wind turbines foreseeability as described in any one of claim 10-18 yaw control
Device.
20. system according to claim 19, which is characterized in that the system also includes：Wireless bridge, the wireless network
The radio node of bridge is arranged in wind power plant at each Wind turbines, and with the wind that is located at the identical Wind turbines
The connection of motor group foreseeability yaw control device.
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| CN201610176883.0A CN107228046B (en) | 2016-03-24 | 2016-03-24 | Wind turbine generator predictive yaw control method, device and system |
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| 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 |
| CN108843496A (en) * | 2018-06-13 | 2018-11-20 | 华润新能源（信宜）风能有限公司 | A kind of control method and system of Wind turbines driftage soft initiator |
| CN111608857B (en) * | 2020-05-09 | 2022-05-17 | 上海电气风电集团股份有限公司 | Wind generating set, control method and system thereof and computer readable storage medium |
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| DE10137272A1 (en) * | 2001-07-31 | 2003-02-27 | Aloys Wobben | Early warning system for wind turbines |
| JP2007285214A (en) * | 2006-04-18 | 2007-11-01 | Nabtesco Corp | Control device for windmill |
| 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 |
| US9617975B2 (en) * | 2012-08-06 | 2017-04-11 | General Electric Company | Wind turbine yaw control |
| US9512820B2 (en) * | 2013-02-19 | 2016-12-06 | Siemens Aktiengesellschaft | Method and system for improving wind farm power production efficiency |
| CN104481804B (en) * | 2014-12-05 | 2017-02-22 | 北京金风科创风电设备有限公司 | Wind power generator group wind correction control method, device and system |
| CN105065201B (en) * | 2015-07-22 | 2018-05-04 | 天津瑞源电气有限公司 | The still control method of normal operation after a kind of damage of Wind turbines anemoscope |
| CN105041570B (en) * | 2015-07-30 | 2017-12-15 | 北京天诚同创电气有限公司 | Yaw control method and device for wind turbine generator |
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