CN107228046A - 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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- CN107228046A CN107228046A CN201610176883.0A CN201610176883A CN107228046A CN 107228046 A CN107228046 A CN 107228046A CN 201610176883 A CN201610176883 A CN 201610176883A CN 107228046 A CN107228046 A CN 107228046A
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- 230000008569 process Effects 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 9
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- 238000004891 communication Methods 0.000 description 6
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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)
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- 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 driftage control of Wind turbines foreseeability
Methods, devices and systems.
Background technology
At present, in the driftage control of wind power generating set (referred to as " Wind turbines "), each wind
Group of motors can only obtain the wind direction of present position, because wind direction has fluctuation and randomness,
When wind vector, Wind turbines need to wait for a period of time, and determine to carry out again partially after wind direction is stable
Boat.This has resulted in the loss of generated energy, simultaneously because without just to wind, Wind turbines will be produced
Very big unbalance loading, the fatigue damage thereby resulted in and mechanical shock, leverage Wind turbines
Service life.
The content of the invention
The present invention provides a kind of Wind turbines foreseeability Yaw control method, device and system, with
In During yaw, the generated energy of Wind turbines is lifted, load of wind turbine generator is reduced.
To reach above-mentioned purpose, The embodiment provides a kind of driftage of Wind turbines foreseeability
Control method, including：Obtain what the wind direction detector in wind power plant at each Wind turbines was gathered in real time
Wind direction；Whether recognize current Wind turbines is being head motor exhaust at first windward along along the wind direction
Group；If recognition result is "No", according to the wind direction at the current Wind turbines and along institute
The relative angle of the wind direction on wind direction at the front-seat Wind turbines of the current Wind turbines is stated, is set
The driftage of the current Wind turbines starts the time.
Embodiments of the invention additionally provide a kind of Wind turbines foreseeability yaw control device, described
Device includes：Wind direction acquisition module, described at each Wind turbines in acquisition wind power plant in real time
The wind direction of wind direction detector collection；Unit identification module, for recognizing current Wind turbines along institute
Whether state on wind direction is head motor exhaust group at first windward；First driftage control module, if for
The recognition result of the unit identification module be "No", then according to the current Wind turbines at
The phase of wind direction and the wind direction along along the wind direction at the front-seat Wind turbines of the current Wind turbines
To angle, the driftage of the current Wind turbines is set to start the time.
Embodiments of the invention additionally provide a kind of Wind turbines foreseeability yaw control system, described
System includes：Wind direction detector and wind as described above at each Wind turbines are arranged in wind power plant
Group of motors foreseeability yaw control device.
Wind turbines foreseeability Yaw control method provided in an embodiment of the present invention, device and system,
For the non-non- head motor exhaust group at first windward along along wind direction, by the wind direction at these Wind turbines
Counted with the relative angle of the wind direction at its front-seat Wind turbines；And according to these relative angles,
The driftage of non-head motor exhaust group is set to start the time.In other words, by adjusting the driftage startup time,
To adjust the stand-by period of driftage, with the rack load realized maximized generating efficiency and minimized.
Brief description of the drawings
Fig. 1 is wind speed and direction transmission schematic diagram in existing wind power plant；
The side of Wind turbines foreseeability Yaw control method one embodiment that Fig. 2 provides for the present invention
Method flow chart；
Wind turbines foreseeability Yaw control method another embodiment that Fig. 3 provides for the present invention
Method flow diagram；
The topology diagram for the wireless bridge that Fig. 4 provides for the present invention；
The Wind turbines foreseeability Yaw control method further embodiment that Fig. 5 provides for the present invention
Method flow diagram；
The knot of Wind turbines foreseeability yaw control device one embodiment that Fig. 6 provides for the present invention
Structure block diagram；
Wind turbines foreseeability yaw control device another embodiment that Fig. 7 provides for the present invention
Structured flowchart；
The structured flowchart for the first driftage control module that Fig. 8 provides for the present invention；
The structured flowchart for the second driftage control module that Fig. 9 provides for the present invention.
Drawing reference numeral explanation
610- wind directions acquisition module, 620- units identification module, the driftages of 630- first control module, 640-
Second driftage control module, 650- wireless bridges module, the statistic units of 631- first, 632- first are opened
Moving cell, the stop elements of 633- first, the statistic units of 641- second, the start units of 642- second, 643-
Second stop element.
Embodiment
Fig. 1 is wind speed and direction transmission schematic diagram in existing wind power plant.It is assumed that current with just in wind power plant
The north is to as upwind side, and each Wind turbines are arranged successively as windward the southwards from direct north
One row, second row ... Wind turbines.Shown in Fig. 1, along upwind side first row Wind turbines
Wind speed be V, wind direction and first row Wind turbines horizontal sextant angle are θ, first row Wind turbines to the
The distance of two motor exhaust groups is X, and second row Wind turbines are to the distance of the 3rd motor exhaust group
Y, then the time that the hearsay at first row Wind turbines is delivered at second row Wind turbines is T1,
Hearsay at T1=X/ (V*sin θ), first row Wind turbines is delivered to needs at the 3rd motor exhaust group
Time T2, T2=(X+Y)/(V*sin θ).Above-mentioned formula neglects wind speed and successively decreased.
Here illustrate, because the wind direction in wind power plant is fluctuation, in strict accordance with the actual transfer of wind
Direction is larger come the process complexity for determining head motor exhaust group at first windward, and this needs prison in real time
Survey the change for the wind direction for blowing to wind power plant.But, although wind direction is real-time fluctuations, but overall upper
Wind direction is metastable, for example, in China's Mainland summer based on south wind, and to winter
, can be by the positive wind direction of windward (such as positive south wind or just based on these features then based on north wind
North wind) as the wind direction in the present embodiment, the head motor exhaust group of correspondence windward is as met at first
First row Wind turbines in the Wind turbines in the righteous style and practice direction, such as Fig. 1 are as met just at first
The Wind turbines of north wind.
The present invention inventive concept, be based on wind direction in a long time transmittance process be in relatively stablize
During state, the driftage startup time of the Wind turbines in wind power plant along the heel row on wind direction is adjusted
It is whole, to control the Wind turbines of heel row to chase the yaw maneuver of front-seat Wind turbines in advance, so as to contract
Short driftage waiting time, realize quick to wind, the generating efficiency of raising Wind turbines, simultaneously reduction
Rack load.
Embodiment one
The side of Wind turbines foreseeability Yaw control method one embodiment that Fig. 2 provides for the present invention
Method flow chart, the executive agent of this method can be the control device for being arranged on each Wind turbines,
It can be the control system of wind power plant.As shown in Fig. 2 using executive agent to be arranged on each wind turbine
Exemplified by the control device of group, the Wind turbines foreseeability Yaw control method is specifically included：
S210, obtains the wind direction of the wind direction detector collection in wind power plant at each Wind turbines in real time.
, can be by for example, for wind direction detector and this programme executive agent on same Wind turbines
The yaw system communication connection of the executive agent and Wind turbines, or directly with being arranged on the wind-powered electricity generation
Wind direction detector such as wind vane on unit is communicatively coupled, so as to directly or indirectly obtain the wind
The information of the wind direction detected to detector.
, can be by each wind for wind direction detector and this programme executive agent not on same Wind turbines
Wind direction information at group of motors is transmitted to the master control system of wind power plant by Wind turbines, then again by
These wind direction informations are distributed on each Wind turbines by master control system, so that on each Wind turbines
Executive agent obtain these wind direction informations.It can lead between each Wind turbines and wind power plant master control system
Cross the communication modes such as existing fiber network or cordless communication network and carry out wind direction information interaction.This implementation
The mode that example shares the wind direction information at its position to each Wind turbines is not limited.
Whether S220, it is being head motor exhaust at first windward along along wind direction to recognize current Wind turbines
Group.
For example, prestoring the geographical position letter of each Wind turbines in wind power plant at each Wind turbines
Breath, according to the geographical location information and the wind direction detected, it can be determined that go out current Wind turbines
Whether it is being head motor exhaust group at first windward along along wind direction.
Specifically, the wind direction in the present embodiment can be the actual direction of windward, or
The direction of windward, such as due south direction, direct north.Replace real with the direction of windward
The wind direction on border can greatly reduce the complexity for confirming head motor exhaust group at first windward, while not
Influence subsequent operation.
S230, if recognition result is "No", according to 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, sets current wind
The driftage of group of motors starts the time.
Generally, when blowing over, the wind in wind power plant at each Wind turbines is relatively uniform or wind direction differential seat angle phase
When poor little, the wind direction referred to along the heel row Wind turbines of wind direction at front-seat Wind turbines enters
Row yaw maneuver, without limitation must wind to after current Wind turbines, further according to current wind
The wind direction that wind direction detector is detected at group of motors carries out yaw maneuver.In this way, can be before and after precognition
In the case that wind direction is relatively uniform or close at motor exhaust group, according to the wind at front-seat Wind turbines
Driftage control is carried out in advance to heel row Wind turbines.
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 wind direction at current Wind turbines and along along wind direction current Wind turbines front row
The differential seat angle of wind direction at Wind turbines, i.e. relative angle, it can be determined that go out front and rear row Wind turbines
Locate the relatively uniform or close situation of wind direction.The judgement needs to count above-mentioned relative angle in a period of time
The situation of change of degree.According to the situation of the relative angle of the continuous duration of the difference counted, it can sentence
Break and the relatively uniform degree of wind direction at front and rear row Wind turbines, wind direction at such as front and rear row Wind turbines
The time that relatively uniform or close state is kept is longer, and the stability for characterizing wind direction is better, then
Heel row set yaw waiting time can be shortened, in advance into driftage state, the stability of wind direction is better,
The driftage startup time of current Wind turbines (heel row Wind turbines) is set more to shift to an earlier date.
The mode of the driftage startup time of the current Wind turbines of this set (heel row Wind turbines),
The Wind turbines positioned at heel row can be made quick to wind, the generating efficiency of wind power plant is improved.Meanwhile,
Due to just being added to the wind time for Wind turbines, the wind direction load lateral to Wind turbines is just reduced
, rack load is reduced to a certain degree.
Wind turbines foreseeability Yaw control method provided in an embodiment of the present invention, is existed based on wind direction
For a long time in transmittance process be in metastable state when, in wind power plant along the heel row on wind direction
The driftage startup time of Wind turbines is adjusted, and shortens driftage waiting time, realizes quickly to wind,
The generating efficiency of Wind turbines is improved, while reducing rack load.
Embodiment two
The side of Wind turbines foreseeability Yaw control method one embodiment that Fig. 3 provides for the present invention
Method flow chart, this method can be considered a kind of specific implementation of embodiment of the method shown in Fig. 2, right
The strategy of the driftage startup time that is shared and setting current Wind turbines of wind direction information is carried out
It is described in detail.As shown in figure 3, the Wind turbines foreseeability Yaw control method is specifically included：
S310, wind is obtained by wireless bridge in real time at the adjacent Wind turbines of current Wind turbines
Wind direction in electric field at other each Wind turbines, and pass through the wind direction detector at current Wind turbines
Obtain the wind direction at current Wind turbines.Step S310 is S210 refinement step.
For the executive agent being arranged on each Wind turbines be easy to by with positioned at same wind turbine
Wind direction detector in group is communicatively coupled, and obtains the wind direction at current Wind turbines.But obtain
The wind direction information at other Wind turbines is taken, otherwise executive agent and wind on each Wind turbines
The control system connection of electric field, is obtained at other Wind turbines with the control system by wind power plant
The information of wind direction, otherwise setting up communication network using each Wind turbines as network node is directly realized by phase
Data interaction between mutually.The present embodiment gives following concrete scheme to the latter's implementation.
Each Wind turbines use Spanning-Tree Protocol as a radio node in wind power plant
(spanning Tree Protocol, STP) builds wireless bridge.STP can be used to reduce in network
Link failure, and provide recycling-guard.STP can effectively increase system reliability, allow net
The unremitting operation of network.As shown in figure 4, STP uses IEEE 802.1D standards in the present embodiment
The interconnection of whole wind power plant can be achieved in bridge, wireless bridge after setting up.Wireless section 1 and radio node
2 links, radio node 2 links with radio node 3, then radio node 1 just can with it is wireless
Node 3 is linked.The like, wireless bridge generates wireless bridge net using STP/RSTP technologies
Network topological structure.Because wireless communication distance is influenceed by Wind turbines distance, two remote
Wind turbines between communication need other Wind turbines to provide network nodes.
Based on the network topology of the wireless bridge built in wind power plant, on each Wind turbines
At the current Wind turbines that executive agent can gather the wind direction detector on current Wind turbines in real time
Wind direction data, other each Wind turbines are transmitted to wind power plant by the wireless bridge, so that real
Now between each Wind turbines wind direction data it is shared.
Whether S320, it is being head motor exhaust at first windward along along wind direction to recognize current Wind turbines
Group.Step S320 content is identical with S220 content.
S330, if recognize current Wind turbines along along wind direction whether be at first windward head air draft electricity
The result of unit is "Yes", then according to the yaw direction of current Wind turbines and its position
The relative angle of wind direction, sets the driftage of current Wind turbines to start the time.
Driftage for head motor exhaust group starts time, the yaw direction according to current Wind turbines
And its relative angle of the wind direction of position is configured.For example, when in fixed timing statisticses window
Intraoral average relative angle is less than predetermined angle, then driftage waiting time t is set, if in the stand-by period
In t, average relative angle is respectively less than predetermined angle in each fixed timing statisticses window, then when waiting
Between t terminate after start driftage.
S340, if recognition result is "No", according to 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, sets current wind
The driftage of group of motors starts the time.Step S340 is similar to step S230 content.
Specifically, in embodiment as shown in Figure 5, show and recognizing current Wind turbines along wind
Whether it is upwards two kinds after the head motor exhaust group at first windward methods that the driftage startup time is set
Flow, corresponds to above-mentioned steps S330 and S340 thinning process respectively.As shown in figure 5, the party
Method includes：
Whether S501, it is being head motor exhaust at first windward along along wind direction to recognize current Wind turbines
Group, if result is "Yes", performs S502；If NO, then S507 is performed.
S502, counts the relative angle of the yaw direction of current Wind turbines and its wind direction of position
Spend the relative angle average value at least one timing statisticses window.
Wherein, timing statisticses window is the time window with fixed duration, the time window with
Time passage is moved rearwards by.For example, in step S502, WindDir_30sec represents phase in 30 seconds
To angular average, WindDir_1min represents relative angle average value in one minute,
WindDir_10min represents relative angle average value in ten minutes.
The present embodiment is not limited to above-mentioned three kinds of timing statisticses windows.
In the present embodiment, yaw position angle and the wind of present position according to current Wind turbines
To the relative angle between angle, the relative angle at least one above-mentioned timing statisticses window is put down
Average sets the driftage of current Wind turbines to start the time.
Specifically, for the relative angle average value of every kind of timing statisticses window, current wind-powered electricity generation is set
Unit is continuously located at the first driftage waiting time in predetermined threshold value interval in its relative angle average value
At the end of start driftage.For example：
S503, when relative angle average value is more than 25 degree in 30 seconds, sets driftage waiting time
For t1, when in t1When relative angle average value is consistently greater than 25 degree in interior 30 seconds, it is determined that in t1
After end, start Wind turbines driftage, i.e., relative angle average value is more than 25 degree in 30 seconds,
And continue t1After duration, it is determined that starting driftage.
S504, when relative angle average value is more than 20 degree in one minute, sets driftage waiting time
For t2, when in t2Relative angle average value is consistently greater than 20 degree in interior one minute, it is determined that in t2
After end, start Wind turbines driftage, i.e., relative angle average value is more than 20 degree in one minute, and
Continue t2After duration, it is determined that starting driftage.
S505, in ten minutes relative angle average value be more than 15 degree, set go off course waiting time be
t3, when in t3Relative angle average value is consistently greater than 15 degree in interior ten minutes, it is determined that in t3Terminate
Afterwards, Wind turbines driftage is started, i.e., relative angle average value is more than 15 degree in ten minutes, and continues
t3After duration, it is determined that starting driftage.
Here illustrate, S503, S504 and S505 can individually select an implementation, implement after also can be combined.
It is preferential to perform implementation strategy of the waiting time compared with current time nearlyer person after combination in implementation process.
The above-mentioned stand-by period meets：t1＜ t2＜ t3.When the condition satisfaction in any of the above-described strategy, and most arrive first
Up to waiting time, started with the waiting time end point, perform step S511, start wind turbine
The yaw maneuver of group.
S507, counts wind direction at current Wind turbines and along along wind direction before current Wind turbines
The relative angle of wind direction at motor exhaust group, in the relative angle of at least one timing statisticses window
Average value.
For example, in step S507, WindDir_30sec represents relative angle average value in 30 seconds,
WindDir_1min represents relative angle average value in one minute, and WindDir_10min is represented very
Relative angle average value in clock.
The present embodiment is not limited to above-mentioned three kinds of timing statisticses windows.
In the present embodiment, the current wind turbine according to the wind direction at current Wind turbines and along along wind direction
The relative angle of wind direction at the front-seat Wind turbines of group, at least one above-mentioned timing statisticses window
Interior relative angle average value sets the driftage of current Wind turbines to start the time.
Specifically, for the relative angle average value of every kind of timing statisticses window, current wind-powered electricity generation is set
Unit is continuously located at the first driftage waiting time in predetermined threshold value interval in its relative angle average value
At the end of start driftage.For example：
S508, when relative angle average value is more than 25 degree in 30 seconds, sets driftage waiting time
For t1/ 3, when in t1When relative angle average value is consistently greater than 25 degree in 30 seconds in/3, it is determined that
Stand-by period t1After/3 terminate, start Wind turbines driftage, i.e., the relative angle average value in 30 seconds
More than 25 degree, and continue t1After/3 durations, it is determined that starting driftage.
S509, in one minute relative angle average value be more than 20 degree, set go off course waiting time be
t2/ 3, when in t2Relative angle average value is consistently greater than 20 degree in one minute in/3, it is determined that waiting
Treat time t2After/3 terminate, start Wind turbines driftage, i.e., relative angle average value is big in one minute
In 20 degree, and continue t2After/3 durations, it is determined that starting driftage.
S510, in ten minutes relative angle average value be more than 15 degree, set go off course waiting time be
t3/ 3, when in t3Relative angle average value is consistently greater than 15 degree in ten minutes in/3, it is determined that waiting
Treat time t3After/3 terminate, start Wind turbines driftage, i.e., relative angle average value is big in ten minutes
In 15 degree, and continue t3After/3 durations, it is determined that starting driftage.
Here illustrate, S508, S509 and S510 can individually select an implementation, implement after also can be combined.
It is preferential to perform implementation strategy of the waiting time compared with current time nearlyer person after combination in implementation process.
When the condition satisfaction in any of the above-described strategy, and waiting time is reached at first, with the waiting time
End point starts, and performs step S511, starts the yaw maneuver of Wind turbines.The above-mentioned stand-by period
In：t1＜ t2＜ t3, and the stand-by period corresponding with head row's unit is corresponding identical.Here why by position
A motor exhaust group driftage waiting time is set in the driftage waiting time of the Wind turbines of heel row
1/3, it is that the relative angle based on heel row Wind turbines is that wind direction at the front-seat Wind turbines of comparison does and joined
Examine, therefore, when evaluating the stability of wind direction, its confidence level is higher.
Further, S506 can be also first carried out before S507 is performed, current Wind turbines are counted
The relative angle of the wind direction at place and the wind direction along along wind direction at the front-seat Wind turbines of current Wind turbines
Degree is before from current time in the short period, and whether the average relative angle in such as 30 seconds is less than
Preset value (any value in such as 20 °~30 °), if the judgment is Yes, then performs the interior of S507 again
Hold, to increase the necessity for performing subsequent step 507.
For example, when the average relative angle of the wind direction in 30 seconds at the Wind turbines of front and rear row is less than in advance
If value, then it is more consistent at the Wind turbines of the front two rows and stably to characterize current wind direction, that
When performing step 507, counting obtained relative angle, it meets S508, S509 or S510
Condition probability it is bigger, it is to avoid unnecessary calculating process.But, if performing step S506
When, 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 can not be done sth. in advance to be gone off course according to the wind direction at front-seat Wind turbines.Now,
Current Wind turbines are considered as the content that a motor exhaust group performs step S502.
During S511 is performed, S512 is can also carry out, it is corresponding relative according to current unit
Angle (WindDir represents instantaneous relative angle), if positioned at 0 degree it is interval (comprising 0 degree
Interior continuous angular interval), to determine whether to stop driftage.
Specifically, during being gone off course for head motor exhaust group as current Wind turbines,
Recognize whether the relative angle of the yaw direction of current Wind turbines and its wind direction of position is located at
0 degree interval, if recognition result is "Yes", performs S513 and stops driftage, otherwise continues to go off course.
During being gone off course for non-head motor exhaust group as current Wind turbines, institute is recognized
State wind direction at current Wind turbines and along along wind direction at the front-seat Wind turbines of current Wind turbines
Wind direction relative angle whether be located at 0 degree it is interval, if recognition result is "Yes", perform S513
Stop driftage, otherwise continue to go off course.
Wind turbines foreseeability Yaw control method provided in an embodiment of the present invention, real shown in Fig. 2
Apply on the basis of example, current Wind turbines are set with the relative angle average value of timing statisticses window
Go off course the startup time.Meanwhile, it is provided with difference for head motor exhaust group and non-head motor exhaust group
The driftage stand-by period, distinguishing progress goes off course the control of time, improves the whole driftage time
The accuracy and reasonability of control.
Embodiment three
The knot of Wind turbines foreseeability yaw control device one embodiment that Fig. 6 provides for the present invention
Structure block diagram, can perform method and step as shown in Figure 2.As shown in fig. 6, the Wind turbines foreseeability
Yaw control device includes：Wind direction acquisition module 610, unit identification module 620 and first are gone off course
Control module 630, wherein：
Wind direction acquisition module 610, for obtaining the wind direction inspection in wind power plant at each Wind turbines in real time
Survey the wind direction of device collection；Unit identification module 620, for recognizing current Wind turbines along wind direction
On whether be head motor exhaust group at first windward；First driftage control module 630, if for machine
The recognition result of group identification module is "No", then according to 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, sets current wind
The driftage of group of motors starts the time.
Further, as shown in fig. 7, also being wrapped in above-mentioned Wind turbines foreseeability yaw control device
Include：Second driftage control module 640, if the recognition result for unit identification module 620 is "Yes",
Then according to the yaw direction of current Wind turbines and its relative angle of the wind direction of position, set
The driftage of current Wind turbines starts the time.
Further, as shown in fig. 7, also being wrapped in above-mentioned Wind turbines foreseeability yaw control device
Include：Wireless bridge module 650, for the wind direction detector on current Wind turbines to be gathered in real time
Wind direction data at current Wind turbines, by wireless bridge transmit to wind power plant it is each other
Wind turbines；The radio node of wireless bridge is provided with wind power plant at each Wind turbines.
Further, above-mentioned wind direction acquisition module 610 is additionally operable to, by wireless bridge from current wind
The wind direction at other each Wind turbines in wind power plant is obtained at the adjacent Wind turbines of group of motors in real time,
And pass through the wind direction at the current Wind turbines of wind direction detector acquisition at current Wind turbines.
Further, as shown in figure 8, above-mentioned first driftage control module 630 includes：
First statistic unit 631, for counting wind direction at current Wind turbines and along wind direction
The relative angle of wind direction at the front-seat Wind turbines of current Wind turbines, at least one statistics
Between window relative angle average value；First start unit 632, for according at least one statistics
The relative angle average value of time window sets the driftage of current Wind turbines to start the time.
Further, above-mentioned first start unit 632, for for every kind of timing statisticses window
Relative angle average value, sets current Wind turbines to be continuously located in its relative angle average value default
Start driftage at the end of first driftage waiting time in threshold interval.
Further, as shown in figure 8, also including in above-mentioned first driftage control module 630：The
One stop element 633, during being gone off course in current Wind turbines, recognizes current wind
Wind direction at group of motors and the wind along along wind direction at the front-seat Wind turbines of the current Wind turbines
To relative angle whether be located at 0 degree it is interval, if recognition result is "Yes", stop going off course.
Further, as shown in figure 9, above-mentioned second driftage control module 640 includes：Second
Statistic unit 641, for counting the yaw direction of current Wind turbines and its wind direction of position
Relative angle at least one timing statisticses window relative angle average value；Second start unit
642, for setting the current wind according to the relative angle average value of at least one timing statisticses window
The driftage of group of motors starts the time.
Further, above-mentioned second start unit 642, for for every kind of timing statisticses window
Relative angle average value, sets current Wind turbines to be continuously located in its relative angle average value default
Start driftage at the end of first driftage waiting time in threshold interval.
Further, as shown in figure 9, also including in above-mentioned second driftage control module 640：The
Two stop elements 643, during being gone off course in current Wind turbines, recognize current wind
Whether the relative angle of the yaw direction of group of motors and its wind direction of position is located at 0 degree of interval,
If recognition result is "Yes", stop driftage.
Wind turbines foreseeability yaw control device provided in an embodiment of the present invention, is existed based on wind direction
For a long time in transmittance process be in metastable state when, in wind power plant along the heel row on wind direction
The driftage startup time of Wind turbines is adjusted, and shortens driftage waiting time, realizes quickly to wind,
The generating efficiency of Wind turbines is improved, while reducing rack load.
Further, on the basis of embodiment illustrated in fig. 6, in Fig. 7, Fig. 8 and Fig. 9, with
The relative angle average value of timing statisticses window sets the driftage of current Wind turbines to start the time.Together
When, the different driftage stand-by period are provided with for head motor exhaust group and non-head motor exhaust group,
The distinguishing control for carrying out the driftage time, improves accuracy and the conjunction of whole driftage time control
Rationality.
Further, the embodiment of the present invention additionally provides a kind of Wind turbines foreseeability driftage control system
System, the system includes：The wind direction detector that is arranged in wind power plant at each Wind turbines and as Fig. 6-
Any shown Wind turbines foreseeability yaw control device in Fig. 9.
Further, also include in said system：Wireless bridge, the radio node of the wireless bridge
Be arranged in wind power plant at each Wind turbines, and with the wind turbine at identical Wind turbines
The yaw control device connection of group foreseeability.
The Wind turbines foreseeability yaw control system that the present invention is provided, can be carried in During yaw
The generated energy of Wind turbines is risen, load of wind turbine generator is reduced.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, and
It is non-that it is limited；Although the present invention is described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in domain should be understood：It still can be to the technology described in foregoing embodiments
Scheme is modified, or carries out equivalent substitution to which part or all technical characteristic；And this
A little modifications are replaced, and the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (20)
1. a kind of Wind turbines foreseeability Yaw control method, it is characterised in that including：
The wind direction of the wind direction detector collection in wind power plant at each Wind turbines is obtained in real time；
Whether recognize current Wind turbines is being head motor exhaust group at first windward along along the wind direction；
If recognition result is "No", according to the wind direction at the current Wind turbines and along institute
The relative angle of the wind direction on wind direction at the front-seat Wind turbines of the current Wind turbines is stated, is set
The driftage of the current Wind turbines starts the time.
2. according to the method described in claim 1, it is characterised in that methods described also includes：
If recognition result is "Yes", according to the yaw direction of the current Wind turbines and its institute
In the relative angle of the wind direction of position, the driftage of the current Wind turbines is set to start the time.
3. method according to claim 2, it is characterised in that methods described also includes：
The current wind-powered electricity generation that the wind direction detector on the current Wind turbines is gathered in real time
Wind direction data at unit, other each Wind turbines are transmitted to wind power plant by wireless bridge；Institute
State the radio node for being provided with the wireless bridge in wind power plant at each Wind turbines.
4. method according to claim 3, it is characterised in that the real-time acquisition wind power plant
The wind direction of wind direction detector collection at interior each Wind turbines, including：
Obtained in real time at the adjacent Wind turbines of the current Wind turbines by the wireless bridge
Wind direction in wind power plant at other each Wind turbines.
5. the method according to any one of claim 1-4, it is characterised in that the basis
Wind direction at the current Wind turbines and along along the wind direction the current Wind turbines front row
The relative angle of wind direction at Wind turbines, sets the driftage of the current Wind turbines to start the time,
Including：
Count the wind direction at the current Wind turbines and the current wind turbine along along the wind direction
The relative angle of wind direction at the front-seat Wind turbines of group, in the phase of at least one timing statisticses window
To angular average；
Set described current according to the relative angle average value at least one timing statisticses window
The driftage of Wind turbines starts the time.
6. method according to claim 5, it is characterised in that the basis it is described at least
A kind of relative angle average value of timing statisticses window sets the driftage of the current Wind turbines to start
Time, including：
For the relative angle average value of every kind of timing statisticses window, current Wind turbines are set
Continuously it is located at the first driftage waiting time in predetermined threshold value interval in its described relative angle average value
At the end of start driftage.
7. method according to claim 6, it is characterised in that methods described also includes：
During the current Wind turbines are gone off course, recognize at the current Wind turbines
Wind direction and wind direction along along the wind direction at the front-seat Wind turbines of the current Wind turbines
Whether relative angle is located at 0 degree of interval, if recognition result is "Yes", stops driftage.
8. the method according to any one of claim 2-4, it is characterised in that the basis
The relative angle of the yaw direction of the current Wind turbines and its wind direction of position, sets institute
The driftage for stating current Wind turbines starts the time, including：
Count the relative angle of the yaw direction of the current Wind turbines and its wind direction of position
In the relative angle average value of at least one timing statisticses window；
Set described current according to the relative angle average value at least one timing statisticses window
The driftage of Wind turbines starts the time.
9. method according to claim 8, it is characterised in that the basis it is described at least
A kind of relative angle average value of timing statisticses window sets the driftage of the current Wind turbines to start
Time, including：
For the relative angle average value of every kind of timing statisticses window, current Wind turbines are set
Continuously it is located at the first driftage waiting time in predetermined threshold value interval in its described relative angle average value
At the end of start driftage.
10. a kind of Wind turbines foreseeability yaw control device, it is characterised in that described device bag
Include：
Wind direction acquisition module, for obtaining the wind direction inspection in wind power plant at each Wind turbines in real time
Survey the wind direction of device collection；
Unit identification module, for recognizing whether current Wind turbines are being at first along along the wind direction
Head motor exhaust group windward；
First driftage control module, if the recognition result for the unit identification module is "No",
Then current Wind turbines according to the wind direction at the current Wind turbines and along along the wind direction
Front-seat Wind turbines at wind direction relative angle, set the driftage of the current Wind turbines to open
The dynamic time.
11. device according to claim 10, it is characterised in that described device also includes：
Second driftage control module, if the recognition result for the unit identification module is "Yes",
Then according to the yaw direction of the current Wind turbines and its relative angle of the wind direction of position,
The driftage of the current Wind turbines is set to start the time.
12. device according to claim 11, it is characterised in that described device also includes：
Wireless bridge module, for the wind direction detector on the current Wind turbines is real-time
Wind direction data at the current Wind turbines of collection, is transmitted to wind power plant by wireless bridge
Other each Wind turbines；In the wind power plant wireless network is provided with each Wind turbines
The radio node of bridge.
13. device according to claim 12, it is characterised in that the wind direction acquisition module
For being obtained in real time at the adjacent Wind turbines of the current Wind turbines by the wireless bridge
Take the wind direction at other each Wind turbines in wind power plant.
14. the device according to any one of claim 10-13, it is characterised in that described
First driftage control module includes：
First statistic unit, for counting wind direction at the current Wind turbines and along the wind
The relative angle of wind direction at the front-seat Wind turbines of the upward current Wind turbines, at least one
Plant the relative angle average value of timing statisticses window；
First start unit, for according to the relative angle at least one timing statisticses window
Average value sets the driftage of the current Wind turbines to start the time.
15. device according to claim 14, it is characterised in that first start unit,
For the relative angle average value for every kind of timing statisticses window, current Wind turbines are set
Continuously it is located at the first driftage waiting time in predetermined threshold value interval in its described relative angle average value
At the end of start driftage.
16. device according to claim 15, it is characterised in that the first driftage control
Module also includes：First stop element, for the process gone off course in the current Wind turbines
In, recognize the wind direction at the current Wind turbines and the current wind turbine along along the wind direction
Whether the relative angle of the wind direction at the front-seat Wind turbines of group is located at 0 degree of interval, if recognition result
For "Yes", then stop driftage.
17. the device according to any one of claim 11-13, it is characterised in that described
Second driftage control module includes：
Second statistic unit, the yaw direction and its institute for counting the current Wind turbines is in place
Relative angle average value of the relative angle for the wind direction put at least one timing statisticses window；
Second start unit, for according to the relative angle at least one timing statisticses window
Average value sets the driftage of the current Wind turbines to start the time.
18. device according to claim 17, it is characterised in that second start unit,
For the relative angle average value for every kind of timing statisticses window, current Wind turbines are set
Continuously it is located at the first driftage waiting time in predetermined threshold value interval in its described relative angle average value
At the end of start driftage.
19. a kind of Wind turbines foreseeability yaw control system, it is characterised in that the system bag
Include：In the wind direction detector and such as claim 10-18 that are arranged in wind power plant at each Wind turbines
Wind turbines foreseeability yaw control device described in any one.
20. system according to claim 19, it is characterised in that the system also includes：
Wireless bridge, the radio node of the wireless bridge is arranged in wind power plant at each Wind turbines,
And connected with the Wind turbines foreseeability yaw control device at the identical Wind turbines.
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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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| CN201610176883.0A CN107228046B (en) | 2016-03-24 | 2016-03-24 | Wind turbine generator predictive yaw control method, device and system |
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| CN111608857A (en) * | 2020-05-09 | 2020-09-01 | 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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| CN107228046B (en) | 2018-11-20 |
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