CN107781109B - Power optimization method, device and the equipment of wind power generating set - Google Patents
Power optimization method, device and the equipment of wind power generating set Download PDFInfo
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- CN107781109B CN107781109B CN201610711367.3A CN201610711367A CN107781109B CN 107781109 B CN107781109 B CN 107781109B CN 201610711367 A CN201610711367 A CN 201610711367A CN 107781109 B CN107781109 B CN 107781109B
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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
-
- 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
- F05B2270/335—Output power or torque
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- 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
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- 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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Abstract
The present invention provides the power optimization method, device and equipment of a kind of wind power generating set.This method comprises: obtaining this wind power generating set in the operation data of power coefficient constant region；Rotary speed-torque curve according to the operation data to described wind power generating set in power coefficient constant region is modified, and obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates the corresponding relationship of revolving speed and torque of the described wind power generating set in performance number maximum；Described wind power generating set is controlled according to the revised rotary speed-torque curve motion.The present invention is obtained due to the corresponding relationship of revolving speed and torque when revised rotary speed-torque curve is according to performance number maximum, therefore wind power generating set enables to power maximum according to revised rotary speed-torque curve motion, running of wind generating set can be made in the state for being similar to optimum tip-speed ratio, obtain maximal wind-energy.
Description
Technical field
The present invention relates to technical field of wind power more particularly to a kind of power optimizations of wind power generating set, device and equipment.
Background technique
Wind energy is as a kind of clean renewable energy, the increasingly attention by countries in the world.It is developed and used in country
Under Renewable energy policy pushes, China's Wind Power Generation Industry and technology are being rapidly developed.The control of wind power generating set is wind-force
One of electricity generation system core content to realize the capture of wind energy and is converted into electric energy by controlling wind power generating set.
With the continuous increase of wind-power electricity generation capacity, machine set type and control mode are controlled from single fixed pitch stall to feather
Control and speed Control development.The main control target of pitch-controlled wind-driven generator group is that propeller pitch angle is adjusted according to wind speed, real
To the control of wind speed round and grid-connected rear maximal power tracing when now starting.With the continuous increase of wind-driven generator pool-size,
How to improve wind power generating set operational efficiency, realize the conversion from wind energy to electric energy in maximum efficiency, becomes wind-power electricity generation skill
The important content of art research.
It is hereby theoretical according to shellfish, to make wind power generating set output power bigger, need to make the wind energy benefit of wind power generating set
With coefficient maximum, the power that wind energy conversion system captures from wind are as follows:
Wherein ρ indicates atmospheric density, and β indicates propeller pitch angle, Cp(λ, β) indicates the power coefficient of wind energy conversion system, and R is wind wheel
Radius, v indicate wind speed, λ indicate tip speed ratio, i.e.,ω is the angular speed of wind energy conversion system.Power coefficient Cp(λ,
β) change with the variation of tip speed ratio λ.Tip speed ratio be for stating wind turbine characteristic highly important parameter,
It to the wind energy maximum for capturing wind-driven generator, needs that unit is made to operate in optimum tip-speed ratio, to reach maximal wind-energy benefit
Use coefficient.
Currently, the adjusting for wind power generating set optimum tip-speed ratio, is mainly limited by the following: tip speed ratio is wind wheel
The ratio between vane tip linear velocity and wind speed, but influenced by anemobiagraph measurement accuracy, although tip speed ratio is calculated according to wind speed
, but cannot be gone to correct with the wind speed of acquisition or revised result has deviation；Furthermore existing anemobiagraph is typically mounted on wind
Power generator group cabin tail portion, the Turbulent Flow Effects that wind energy is generated by impeller rotation, air speed value cannot function as calculating tip speed ratio
Reference frame, therefore the optimum tip-speed ratio of wind power generating set can not be accurately adjusted by wind speed.
Therefore, how to make wind power generating set more closely operate in optimum tip-speed ratio is those skilled in the art
The technical issues of urgent need to resolve.
Summary of the invention
The present invention provides the power optimization method, device and equipment of a kind of wind power generating set, to realize wind-driven generator
Group more closely operates in optimum tip-speed ratio.
In a first aspect, the present invention provides a kind of power optimization method of wind power generating set, comprising:
This wind power generating set is obtained in the operation data of power coefficient constant region；
It is bent in the rotary speed-torque of power coefficient constant region to described wind power generating set according to the operation data
Line is modified, and obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates described wind-force
The corresponding relationship of revolving speed and torque of the generating set in performance number maximum；
Described wind power generating set is controlled according to the revised rotary speed-torque curve motion.
Second aspect, the present invention provide a kind of power optimization method of wind power generating set, comprising:
Obtain the operation data with reference to wind power generating set in power coefficient constant region；
According to the operation data to it is described with reference to wind power generating set power coefficient constant region rotary speed-torque
Curve is modified, and obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates the reference
The corresponding relationship of revolving speed and torque of the wind power generating set in performance number maximum；
The revised rotary speed-torque curve is sent to all wind power generating sets in wind power plant, so that described
Wind power generating set is according to the revised rotary speed-torque curve motion.
The third aspect, the present invention provide a kind of power optimization device of Wind turbines, comprising:
Module is obtained, for obtaining this wind power generating set in the operation data of power coefficient constant region；
Processing module is used for according to the operation data to described wind power generating set in power coefficient constant region
Rotary speed-torque curve be modified, obtain revised rotary speed-torque curve；The revised rotary speed-torque curve table
Show the corresponding relationship of revolving speed and torque of the described wind power generating set in performance number maximum；
Control module, for controlling described wind power generating set according to the revised rotary speed-torque curve motion.
Fourth aspect, the present invention provide a kind of wind power plant central monitoring equipment, comprising:
Module is obtained, refers to wind power generating set in the operation data of power coefficient constant region for obtaining；
Processing module, for constant in power coefficient to the reference wind power generating set according to the operation data
The rotary speed-torque curve in area is modified, and obtains revised rotary speed-torque curve；The revised rotary speed-torque curve
Indicate the corresponding relationship with reference to the wind power generating set revolving speed in performance number maximum and torque；
Sending module, for the revised rotary speed-torque curve to be sent to all wind-power electricity generations in wind power plant
Unit, so that the wind power generating set is according to the revised rotary speed-torque curve motion.
Power optimization method, device and the equipment of wind power generating set of the present invention, are existed by obtaining this wind power generating set
The operation data of power coefficient constant region；According to the operation data to described wind power generating set in wind energy utilization system
The rotary speed-torque curve of number constant region is modified, and obtains revised rotary speed-torque curve；Revised rotary speed-torque is bent
Line indicates the corresponding relationship of revolving speed and torque of the described wind power generating set in performance number maximum；Control is realized with reference to wind
Power generator group is according to the revised rotary speed-torque curve motion, since revised rotary speed-torque curve is according to function
What the corresponding relationship of revolving speed and torque when rate value maximum obtained, therefore wind power generating set is according to revised rotary speed-torque
Curve motion enables to power maximum, and wind power generating set can be made to operate in the shape for being similar to optimum tip-speed ratio
State, since its tip speed ratio is closer in optimum tip-speed ratio, so as to improve wind power generating set wind energy utilization and
The output power of wind power generating set obtains bigger wind energy.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the power coefficient and tip speed ratio graph of relation of wind power generating set；
Fig. 2 a is the power optimized system of the wind power generating set of the embodiment of the present invention；
Fig. 2 b is equipment interaction schematic diagram in the power optimized system of the wind power generating set of the embodiment of the present invention；
Fig. 3 a is the flow diagram of one embodiment of power optimization method of wind power generating set of the present invention；
Fig. 3 b is the flow diagram of another embodiment of power optimization method of wind power generating set of the present invention；
Fig. 3 c is the flow diagram of the another embodiment of power optimization method of wind power generating set of the present invention；
Fig. 4 is the revolving speed operation area schematic diagram of wind power generating set；
Fig. 5 is the existing rotary speed-torque curve of wind power generating set；
Fig. 6 is rotary speed-torque curve amendment schematic diagram one provided in an embodiment of the present invention；
Fig. 7 is rotary speed-torque curve amendment schematic diagram two provided in an embodiment of the present invention；
Fig. 8 is rotary speed-torque curve amendment schematic diagram three provided in an embodiment of the present invention；
Fig. 9 is revised rotary speed-torque curve synoptic diagram provided in an embodiment of the present invention；
Figure 10 is the flow diagram of the another embodiment of power optimization method of wind power generating set of the present invention；
Figure 11 a is the structural schematic diagram of one embodiment of power optimization device of wind power generating set of the present invention；
Figure 11 b is the structural schematic diagram of another embodiment of power optimization device of wind power generating set of the present invention；
Figure 11 c is the structural schematic diagram of the another embodiment of power optimization device of wind power generating set of the present invention；
Figure 12 is the structural schematic diagram of one embodiment of wind power plant central monitoring equipment of the present invention；
Figure 13 is the structural schematic diagram of one embodiment of master control system of wind power generating set of the present invention；
Figure 14 is the structural schematic diagram of another embodiment of wind power plant central monitoring equipment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the power coefficient and tip speed ratio graph of relation of wind power generating set, as shown in Figure 1, abscissa
For the tip speed ratio of blade, ordinate is the power coefficient of blade.It can be seen from figure 1 that when blade pitch angle is fixed
(being such as separately fixed at 0 °, 3 °, 6 °, 9 °, 12 °, 15 °, 18 °), the variation of tip speed ratio can cause the very big of power coefficient
Variation, cause biggish generated energy to lose, so in order to enable wind power generating set that more wind energies are converted to electric energy,
Generating efficiency is improved, needs that wind power generating set is made to operate in optimum tip-speed ratio, power coefficient is maximum at this time.Blade tip speed
It than referring to the linear velocity of vane tip and the ratio of wind speed, is influenced by anemobiagraph measurement accuracy, although tip speed ratio and wind
Speed is related, but cannot go to adjust according to wind speed.
Therefore, the method for the embodiment of the present invention passes through the rotary speed-torque curve to wind power generating set regarding to the issue above
Automatic amendment, so that wind power generating set is operated in approximate optimum tip-speed ratio.
Fig. 3 a is the flow diagram of one embodiment of power optimization method of wind power generating set of the present invention.Fig. 4 is wind-force
The revolving speed operation area schematic diagram of generating set.The executing subject of the present embodiment can be the power optimization dress of wind power generating set
It sets, which can be set in reference wind power generating set.As shown in Figure 3a, the method for the present embodiment, comprising:
Step 301 obtains this wind power generating set in the operation data of power coefficient constant region.
As shown in figure 4, the operation area of pitch-controlled wind-driven generator group is generally divided into promoter region 401, power coefficient
Totally four operation areas constant region 402 (A-B), invariablenes turning speed area 403 (B-C), power invariability area 404 (C-D).The present invention is implemented
Power optimization method involved in example, is mainly modified the tip speed ratio of power coefficient constant region 402, guarantees wind
Power generator group approximatively operates in optimum tip-speed ratio.
In this step, needs to obtain this wind power generating set in the operation data of power coefficient constant region, run number
According to including multiple groups tachometer value, torque value, performance number etc..
At this point, operation data can also include the identification code and running mark of this wind power generating set；Identification code indicates this
The type of wind power generating set；Running mark indicates the operating status of this wind power generating set.
Identification code can also specifically include fan capacity, length of blade.Running mark is for limiting fan operation situation, such as
Fruit propeller pitch angle is not 0 degree, or not grid-connected, then rejects its data, to remove start-up course, During yaw, stopping process or limit
Data when Power operation keep the result of data statistics, analysis more acurrate.
It should be noted that in an embodiment of the present invention, step 301 can be specifically accomplished in that
The tachometer value of the power coefficient constant region of this wind power generating set is divided at least two traffic coverages；
Obtain the corresponding section operation data of each traffic coverage of this wind power generating set；Each section operation data packet
Include multiple groups tachometer value, torque value, performance number；Wherein, operation data includes the section operation data of each traffic coverage.
It is step 302, bent in the rotary speed-torque of power coefficient constant region to this wind power generating set according to operation data
Line is modified, and obtains revised rotary speed-torque curve；Revised rotary speed-torque curve indicates this wind power generating set
The corresponding relationship of revolving speed and torque in performance number maximum.
Fig. 5 is the existing rotary speed-torque curve of wind power generating set, as shown in figure 5, abscissa is tachometer value, ordinate
For torque value, with the raising of revolving speed, torque is gradually increased, to improve the generated output of wind power generating set.In Fig. 5,
Wind power generating set may operate in region of the region of optimum tip-speed ratio between a-b, the i.e. benefit of wind energy shown in Fig. 4
With coefficient constant area 402.
The shortcomings that this method is to be pre-entered due to rotary speed-torque curve for the master control system of wind power generating set
Curve data, thus parameter be it is fixed, if necessary to being adjusted to the tip speed ratio of wind power generating set, need by artificial
Adjustment and verifying repeatedly are carried out to existing rotary speed-torque curve, on the one hand need repeatedly adjustment, verifying, very blindly, meeting
The workload of software maintenance is caused just to increase；On the other hand since daily wind speed cannot generally cover entire wind speed section, so
The time-consuming period can be long, general adjustment primary 15~30 days runtime verification time of needs.
If rotary speed-torque curve is run wind power generating set according to figure 5 always, may become due to environment
Change, self-condition variation, so that the rotary speed-torque curve is not the corresponding rotary speed-torque curve of optimum tip-speed ratio, therefore
It needs to be modified rotary speed-torque curve, i.e., this wind power generating set is obtained in power coefficient perseverance according to operation data
Determine the revised rotary speed-torque curve in area.
In the embodiment of the present invention, selects one to refer to wind power generating set in wind power plant, carry out rotary speed-torque curve
Automatic amendment, in the power coefficient constant region of reference wind power generating set, every time with reference on the revolving speed of wind power generating set
When rising, the torque value in the speed stage is tested in a manner of detour, acquires and chooses the function with reference to wind power generating set
Rate maximum value and corresponding torque value and tachometer value.
With reference to wind power generating set in the automatic makeover process of rotary speed-torque curve, acquires and choose with reference to wind-power electricity generation
The power maximum value of unit and corresponding torque value and tachometer value, while uniting to the revolving speed of each traffic coverage, torque
It counts (can be counted by reference wind power generating set itself in the present embodiment), and generates revised rotary speed-torque curve, with reference to wind
Power generator group is according to revised rotary speed-torque curve motion.
Step 303 controls this wind power generating set according to revised rotary speed-torque curve motion.
Specifically, control this wind power generating set according to revised rotary speed-torque curve motion, it specifically can be by such as
Under type is realized:
If wind power generating set is in shutdown status, or when wind power generating sets being waited to be in shutdown status, directly will be former
Rotary speed-torque curve is changed to revised rotary speed-torque curve；
If wind power generating set is in operating status, according to the current tachometer value of wind power generating set, adjustment is not located
In the torque value of this tachometer value, to prevent from causing the vibration of wind-driven generator because of the mutation of torque value.
In this step, enables to wind power generating set close to optimum tip-speed ratio is operated in, obtain maximal wind-energy；Together
When, the torque value of non-present running speed is corrected one by one, can also avoid causing wind-force to be sent out because of the mutation of torque value
Electric unit vibration.
The power optimization method of wind power generating set provided in this embodiment, by obtaining this wind power generating set in wind energy
The operation data of usage factor constant region；According to the operation data to described wind power generating set in power coefficient perseverance
The rotary speed-torque curve for determining area is modified, and obtains revised rotary speed-torque curve；Revised rotary speed-torque curve table
Show the corresponding relationship of revolving speed and torque of the described wind power generating set in performance number maximum；Control is realized to send out with reference to wind-force
Motor group is according to the revised rotary speed-torque curve motion, since revised rotary speed-torque curve is according to performance number
What the corresponding relationship of revolving speed and torque when maximum obtained, therefore wind power generating set is according to revised rotary speed-torque curve
Operation enables to power maximum, and wind power generating set can be made to operate in the state for being similar to optimum tip-speed ratio,
Since its tip speed ratio is closer in optimum tip-speed ratio, so as to improve the wind energy utilization and wind-force of wind power generating set
The output power of generating set obtains bigger wind energy.
On the basis of the above embodiments, further, in embodiments of the present invention, can also include the following steps:
Revised rotary speed-torque curve negotiating wind power plant central monitoring equipment is sent to its lingering remnants of past customs in this wind power plant
Power generator group, so that remaining wind power generating set is according to the revised rotary speed-torque curve motion.
Specifically, due to being unable to direct communication between current blower, it is possible to be carried out by wind power plant central monitoring equipment
Forwarding.Automatic revised rotary speed-torque curve negotiating wind power plant central monitoring equipment can be sent in wind power plant
Remaining wind power generating set, remaining wind power generating set is according to revised rotary speed-torque curve motion, and remaining wind-force is sent out
Motor group is usually the wind power generating set for having identical capacity and length of blade with reference wind power generating set.
Remaining above-mentioned wind power generating set receives the automatic revised revolving speed-that wind power plant central monitoring equipment issues and turns
After square curve, starts to execute automatic revised rotary speed-torque curve, executes method are as follows:
If wind power generating set is in shutdown status, or when wind power generating sets being waited to be in shutdown status, will directly turn
Speed-torque curve is changed to revised rotational speed and torque curve；
If wind power generating set is in operating status, according to the current tachometer value of wind power generating set, adjustment is not located
In the rotary speed-torque parameter of this tachometer value, to prevent from causing the vibration of wind-driven generator because of the mutation of torque value.
Fig. 3 b is the flow diagram of another embodiment of power optimization method of wind power generating set of the present invention.Fig. 6 is this
The rotary speed-torque curve amendment schematic diagram one that inventive embodiments provide.Fig. 7 is that rotary speed-torque provided in an embodiment of the present invention is bent
Line corrects schematic diagram two.On the basis of the above embodiments, in the present embodiment, as shown in Figure 3b, step 302 can specifically pass through
Following steps are realized:
Step 3021, the section operation data according to each traffic coverage, determine this wind power generating set in each operation
Optimized rotating speed and optimum torque in section when power maximum；
Step 3022, optimized rotating speed and optimum torque according to this wind power generating set in each traffic coverage, fitting
Obtain revised rotary speed-torque curve.
Fig. 3 c is the flow diagram of the another embodiment of power optimization method of wind power generating set of the present invention.Actually answering
In, as shown in Figure 3c, step 3021 can be specifically achieved by the steps of:
Step 30211, in each traffic coverage, according in traffic coverage minimum speed setting it is corresponding with minimum speed
The first torque, and corresponding first revolving speed when determining performance number maximum under the first torque；
Step 30212, in each traffic coverage, according in traffic coverage maximum speed setting it is corresponding with maximum speed
The second torque, and corresponding second revolving speed when determining performance number maximum under the second torque；
Step 30213, according to the maximum value in the first revolving speed and the corresponding performance number of the second revolving speed, determine optimized rotating speed
And optimum torque.
It should be noted that step 30211 and step 30212 may be performed simultaneously, there is no strict sequences.
Reference wind power generating set in following embodiment is this wind power generating set.
Specifically, as shown in Figure 6, Figure 7, the step of being modified to rotary speed-torque curve are as follows:
According to previous embodiment it is found that by the tachometer value of the power coefficient constant region 402 of reference wind power generating set
Multidomain treat-ment has been carried out, has been divided at least two traffic coverages, such as be divided into n1-n2, n2-n3, n3-n4, n4-n5, n5-n6, n6-
Totally 8 traffic coverages carry out the tune of rotary speed-torque curve in each traffic coverage of reference blower by n7, n7-n8, n8-n9
Whole and test, i.e., after the tachometer value for referring to wind power generating set enters a certain traffic coverage, such as n2 shown in fig. 6 and n3 institute
Revolving speed section, then according to schematical torque testing path 603 (being specifically shown in the 704-707 in Fig. 7) carry out torque adjustment,
And maximum power value and the corresponding optimized rotating speed and optimum torque with reference to wind power generating set of maximum power value are recorded, according to ginseng
Optimized rotating speed and optimum torque of the wind power generating set in each traffic coverage are examined, fitting obtains revised rotary speed-torque
Curve keeps wind-driven generator fast close to best blade tip is operated in realize the amendment to wind power generating set rotary speed-torque
Than.
Further, the above process is described in detail:
As shown in fig. 7, comprises original rotary speed-torque curve 703, constant torque area 704, torque rising area 705, torque perseverance
Determine area 706, torque drop area 707；Abscissa is tachometer value, and ordinate is torque value, is with region of the revolving speed between n2-n3
Example, is illustrated the modification method of torque；Wherein, original rotary speed-torque curve 703 is the original revolving speed-of wind-driven generator
Torque curve, constant torque area 704, torque rising area 705, constant torque area 706, torque drop area 707 form a torque
Change path, and its torque change procedure is constant torque area 704 --- torque rising area 705 --- constant torque area
706 --- torque drop area 707 (it is just needed when only repeatedly testing repeatedly in this traffic coverage), and constant torque area 704
Torque value size be original rotary speed-torque curve 703 on the corresponding torque value T2 of revolving speed n2, and constant torque area 706 turn
Square value size is the corresponding torque value T3 of revolving speed n3 on original rotary speed-torque curve 703；Its specific testing procedure are as follows:
1) when the tachometer value of wind-driven generator enters and is constantly maintained at the section n2-n3, by the torque of wind-driven generator
Value is given as the corresponding torque value T2 in constant torque area 704, i.e., in the section that tachometer value is n2-n3, holding torque value is constant,
To carry out the detection of optimized rotating speed and optimum torque.According to torque value T=9550P/n, when the torque value T of wind-driven generator is solid
After fixed, the variation of performance number P can change with the variation of revolving speed n, and if corresponding torque value T is bigger than normal, with the change of wind speed
Change, the revolving speed n of generator can decline, and power p can decline, if corresponding torque value T is less than normal, the revolving speed n of generator can on
It rises, power p can also rise, it is possible to by the method, count maximum power value and maximum power value corresponding first
Revolving speed and the first torque, so that it may realize the amendment to wind-driven generator optimum tip-speed ratio.
2) after the completion of the maximum power Data-Statistics in constant torque area 704, then according to torque rising area 705, make torque by
Step rises to constant torque area 706；The purpose for incrementally increasing torque is that torque in order to prevent is mutated and causes wind-driven generator
Vibration；
3) it after torque value is increased to T3, into constant torque area 706, again by method described in the first step, counts
Maximum power value and corresponding second revolving speed of maximum power value and the second torque；
4) by the above-mentioned performance number counted maximizing again, and corresponding optimized rotating speed and optimum torque are recorded；This
When just obtained optimized rotating speed and optimum torque；
5) optionally, after the completion of the maximum power Data-Statistics in constant torque area 706, then according to torque drop area 707, make
Torque gradually turns again to constant torque area 704；The purpose for gradually reducing torque is that torque in order to prevent is mutated and causes wind-force
The vibration of generator；The purpose of this step is that rotary speed-torque curve is repeatedly adjusted and verified.
If 6) tachometer value of wind-driven generator rises to the numerical value greater than n3 in the case where torque value is given as T2,
Then according to torque rising area 705, incrementally increases torque and rise to constant torque area 706；The purpose for incrementally increasing torque is
Torque is mutated and causes the vibration of wind-driven generator in order to prevent；The tachometer value of wind-driven generator is set to come back to turning for n2-n3
Fast section；
7) after if torque value increases to T3, the tachometer value of wind-driven generator is still greater than n3, then it is assumed that wind speed becomes larger at this time,
Then start the rotary speed-torque curve for adjusting next revolving speed section (such as revolving speed section of n3-n4) in the same way；And it controls
Torque curve is stepped up to corresponding torque value on original rotary speed-torque curve 703.
8) the same above-mentioned steps of the automatic adjusting method in remaining revolving speed section, which is not described herein again；Complete entire wind energy utilization
After the adjustment of the rotary speed-torque curve in coefficient constant area 402, the maximum optimized rotating speed of performance number and optimum torque are converged
Always, it can be fitted to obtain automatic revised rotary speed-torque curve；
Fig. 8 is rotary speed-torque curve amendment schematic diagram three provided in an embodiment of the present invention, as shown in figure 8, rotary speed-torque
Curve adjusts path 803 is the corresponding power coefficient constant region 402 of a-b, the i.e. total adjusts path of rotary speed-torque curve.
Fig. 9 is revised rotational speed and torque curve synoptic diagram provided in an embodiment of the present invention, as shown in figure 9, revised
Rotary speed-torque curve 901 is that provided method obtains according to embodiments of the present invention, statistical method are as follows: obtain each revolving speed
Tachometer value and corresponding torque value in the rotary speed-torque curve adjusts path 803 in section when performance number maximum, in all revolving speeds
After the completion of the data in section all count, each point is connected, generates revised rotary speed-torque curve 901.
The method of the present embodiment may be implemented the automatic amendment of rotary speed-torque curve, reduce the workload manually adjusted；
It chooses 1 model machine in wind power plant to be tested, so influencing the overall power generation amount of wind power plant little；Each wind-driven generator
Revolving speed rise when, change the torque value of wind-driven generator in a manner of detour, can be bigger than normal to original torque value or less than normal
Two kinds of situations are adjusted；Rotary speed-torque curve it is automatic it is modified during, torque value variation is steady, will not be to unit
Safe operation has an impact；Amendment precision is not influenced by wind speed measurement accuracy, so the modification method linearity is high, accuracy rate
It is high.
On the basis of the above embodiments, further, it when getting final revised rotary speed-torque curve, needs
Data verification carried out to the curve, guarantee the correctness of rotary speed-torque curve, if data verification success is (by wind power plant
Centre monitoring device is verified, can also be by reference wind power generating set own verification), then wind power generating set can be according to amendment
Rotary speed-torque curve motion afterwards, so that Wind turbines are close to optimum tip-speed ratio is operated in, to improve the total of wind power plant
Body generated energy.
Specifically, the method for carrying out data verification to curve to rotary speed-torque are as follows:
After counting the corresponding optimized rotating speed of each traffic coverage maximum power value, optimum torque numerical value, by any two groups
Optimized rotating speed, the connected straight line of optimum torque point seek slope, if the slope is matched with default slope value, then it is assumed that curve is united
Meter is correct；Wherein, matching refers to equal with default slope value, or difference is no more than a preset range, and default slope value can be with
It is set according to original rotary speed-torque slope of a curve value.
Curve adjustment is completed and after verifying correctly, then wind power generating set can be according to revised rotary speed-torque curve
Operation.
Technical effect caused by the present embodiment are as follows: the revised rotary speed-torque curve completed to statistics is verified,
Correctness or data to guarantee revised rotary speed-torque curve guarantee the operational safety of wind power generating set without jump.
On the basis of the above embodiments, further, due to the temperature of reference wind power generating set local environment and most
Temperature difference eventually according to remaining wind power generating set local environment of revised rotary speed-torque curve motion is larger, therefore
The revised rotary speed-torque curve be may be such that these wind power generating sets and be not suitable for, therefore before transmitting, needed
It to be modified according to environment temperature.
It can specifically realize in the following way:
According to torque value pair in environment temperature locating for remaining wind power generating set and revised rotary speed-torque curve
The environment temperature answered is modified processing to revised rotary speed-torque curve.
Specifically, power that wind power generating set from wind capture hereby theoretical according to shellfish are as follows:
Wherein ρ indicates atmospheric density, and β indicates propeller pitch angle, Cp(λ, β) indicates the power coefficient of wind power generating set, R
It is the radius of wind wheel, v indicates that wind speed, λ indicate tip speed ratio, if ω is the angular speed of wind power generating set.The meter of tip speed ratio
Calculate formula are as follows:
The relationship of wind power generating set angular speed and revolving speed are as follows:
The π of ω=2 n ... ... ... ... ... ... ... ... ... ... ... ... (3)
Hereby theoretical according to shellfish, the power that wind power generating set captures from wind is influenced by atmospheric density ρ, atmospheric density
Calculation formula are as follows:
Wherein, ρtFor the atmospheric density under temperature t, t is atmospheric temperature, and P is the absolute pressure of air, ρ0It is 0 DEG C, pressure
For the density of air under 0.1013Mpa state.
Association type (1), formula (2), formula (3), formula (4) can obtain, the power that wind power generating set captures from wind are as follows:
It can be obtained by formula (5), one timing of wind speed, the tachometer value and temperature value of wind power generating set inversely, will reach
Identical power coefficient, temperature is higher, and required revolving speed is lower, and temperature is lower, and required revolving speed is higher.
Meanwhile the power of wind wheel can also rotate speed with the torque of wind wheel and be expressed as:
P=T ω=T*2 π n ... ... ... ... ... ... ... ... ... (6)
By formula (6) it is found that in the case where wind energy is certain, the torque value and tachometer value of wind-driven generator are inversely.
Therefore according to formula (5), formula (6) it is found that make the wind power generating set under identical wind speed, different temperatures when one timing of wind speed
Reach identical power coefficient, there should be following relationship:
Wherein, T2 is the torque value in temperature t2 apparatus for lower wind generating set, and T1 is in temperature t1 apparatus for lower wind generating set
Torque value.
Meanwhile formula (6) is it is found that the torque of wind power generating set is directly proportional to power, so correcting torque value in proportion, just
The amendment of performance number may be implemented, to realize maximal wind-power tracking, i.e., so that the power of wind power generating set is maximum, improve wind
The generated energy of power generator.
In the embodiment of the present invention, processing can be modified according to formula (7):
Wherein, T2 indicates torque of this wind power generating set at environment temperature t2 in revised rotary speed-torque curve
Value, T1 indicate torque value of remaining wind power generating set at environment temperature t1.
Specifically, correcting the torque of wind power generating set according to environment temperature, while also achieving the amendment of performance number, example
Such as, with reference to wind power generating set in torque value T2, locating environment temperature is t2, then ring locating for remaining wind power generating set
When border temperature is t1, torque value T1 can be obtained by formula (7), therefore, can be with when being sent to remaining wind power generating set
Revised rotary speed-torque curve is further corrected according to environment temperature.
What the present embodiment was realized has the technical effect that in the adjustment of progress rotary speed-torque curve automatically and obtains optimum speed-
After torque curve, torque value environment temperature according to locating for remaining wind power generating set is modified, to meet in not
Under synthermal, wind power generating set realizes maximum power output, and reduce personnel close to the service requirement of optimum tip-speed ratio
The workload of adjustment.
Figure 10 is the flow diagram of the another embodiment of power optimization method of wind power generating set of the present invention.The present embodiment
Executing subject can be wind power plant central monitoring equipment.As shown in Figure 10, the method for the present embodiment, comprising:
Step 1001, acquisition refer to wind power generating set in the operation data of power coefficient constant region；
Step 1002, the revolving speed-according to operation data to reference wind power generating set in power coefficient constant region turn
Square curve is modified, and obtains revised rotary speed-torque curve；Revised rotary speed-torque curve indicates to send out with reference to wind-force
The corresponding relationship of revolving speed and torque of the motor group in performance number maximum；
Revised rotary speed-torque curve is sent to all wind power generating sets in wind power plant by step 1003, so that
Each wind power generating set is according to the revised rotary speed-torque curve motion.
Wherein, in practical applications, step 1001 can be specifically accomplished in that
The tachometer value of the power coefficient constant region of reference wind power generating set is divided at least two traffic coverages；
Receive the corresponding section operation data of each traffic coverage sent with reference to wind power generating set；Each section operation
Data include multiple groups tachometer value, torque value, performance number；Wherein, operation data includes the section operation data of each traffic coverage.
In the present embodiment, Fig. 2 a is the power optimized system of the wind power generating set of the embodiment of the present invention.The present invention is implemented
The control method of example is applied to the power optimized system of wind power generating set, which includes: wind-powered electricity generation center court prison
Equipment 201, wind power plant 202 are controlled, includes multiple wind power generating sets in the wind power plant 202, is sent out including one with reference to wind-force
Motor group 203, as shown in Fig. 2 a.Wherein, wind power plant central monitoring equipment 201 is for acquiring all wind-force hairs in wind power plant 202
The data of motor, and control the operation of all wind-driven generators in wind power plant 202；It is to carry out revolving speed-with reference to wind-driven generator 203
The selection of the model machine that torque curve is tested automatically, model machine has no special requirements, and can be any one blower in wind power plant.
Fig. 2 b is equipment interaction schematic diagram in the power optimized system of the wind power generating set of the embodiment of the present invention.This implementation
It is that wind power plant central monitoring equipment 201 is constant in power coefficient according to reference wind power generating set as shown in Figure 2 b in example
The operation data in area obtains bent in the revised rotary speed-torque of power coefficient constant region with reference to wind power generating set 203
Line needs to refer to wind power generating set 203 at this time and sends operation data, and wind power plant central monitoring equipment 201 is handed down to its lingering remnants of past customs
The data that issue of machine 204 are revised rotary speed-torque curve.Remaining wind power generating set 204 receives wind-powered electricity generation center court prison
After the revised rotary speed-torque curve that control equipment 201 issues, the torque value of non-present running speed is corrected one by one,
Make Wind turbines close to optimum tip-speed ratio is operated in, obtains maximal wind-energy；Meanwhile to the torque value of non-present running speed
It is corrected one by one, can also avoid leading to vibration of wind generating set because of the mutation of torque value.
On the basis of the above embodiments, optionally, step 1002 can be specifically accomplished in that
According to the section operation data of each traffic coverage, determines and refer to wind power generating set function in each traffic coverage
Optimized rotating speed and optimum torque when rate value maximum；
According to optimized rotating speed and optimum torque of the reference wind power generating set in each traffic coverage, fitting obtains amendment
Rotary speed-torque curve afterwards.
Optionally, it according to the section operation data of each traffic coverage, determines with reference to wind power generating set in each operation
Optimized rotating speed and optimum torque in section when performance number maximum, can specifically be accomplished in that
It is first turn corresponding with minimum speed according to the minimum speed setting in traffic coverage in each traffic coverage
Square, and determine corresponding first revolving speed when performance number maximum under the first torque；
It is second turn corresponding with maximum speed according to the maximum speed setting in traffic coverage in each traffic coverage
Square, and determine corresponding second revolving speed when performance number maximum under the second torque；
According to the maximum value in the first revolving speed and the corresponding performance number of the second revolving speed, optimized rotating speed and optimal turn are determined
Square.
Optionally, in the optimized rotating speed and optimum torque according to reference wind power generating set in each traffic coverage, intend
It closes after obtaining revised rotary speed-torque curve, further includes:
Obtain the slope of the straight line of any two groups of optimized rotating speeds and optimum torque determination；
Whether the slope of detection straight line matches with default slope value.
Optionally, before step 1003, further includes:
According to torque value pair in environment temperature locating for remaining wind power generating set and revised rotary speed-torque curve
The environment temperature answered is modified processing to revised rotary speed-torque curve.
Optionally, in the environment temperature according to locating for remaining wind power generating set and revised rotary speed-torque curve
The corresponding environment temperature of torque value is modified processing to revised rotary speed-torque curve, comprising:
Processing is modified to revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates to turn in revised rotary speed-torque curve at environment temperature t2 with reference to wind power generating set
Square value, T1 indicate torque value of remaining wind power generating set at environment temperature t1.
The embodiment of the method for its implementing principle and technical effect of the method for above-described embodiment and reference wind power generating set side
Similar, details are not described herein again.
Figure 11 a is the structural schematic diagram of one embodiment of power optimization device of wind power generating set of the present invention.The power is excellent
Makeup is set and can be deployed in the master control system of wind power generating set.As shown in fig. 11a, the function of the wind power generating set of the present embodiment
Rate optimizes device, comprising:
Module is obtained, for obtaining this wind power generating set in the operation data of power coefficient constant region；
Processing module, for according to operation data to this wind power generating set power coefficient constant region revolving speed-
Torque curve is modified, and obtains revised rotary speed-torque curve；Revised rotary speed-torque curve indicates that this wind-force is sent out
The corresponding relationship of revolving speed and torque of the motor group in performance number maximum；
Control module, for controlling this wind power generating set according to revised rotary speed-torque curve motion.
Optionally, module is obtained, is specifically used for:
The tachometer value of the power coefficient constant region of this wind power generating set is divided at least two traffic coverages；
Obtain the corresponding section operation data of each traffic coverage of this wind power generating set；Each section operation data packet
Include multiple groups tachometer value, torque value, performance number；Wherein, operation data includes the section operation data of each traffic coverage.
Figure 11 b is the structural schematic diagram of another embodiment of power optimization device of wind power generating set of the present invention.Such as Figure 11 b
Shown, optionally, processing module specifically includes:
Optimized rotating speed and optimum torque determination unit determine this for the section operation data according to each traffic coverage
Optimized rotating speed and optimum torque of the wind power generating set in each traffic coverage when performance number maximum；
Rotary speed-torque curve matching unit, for optimal turn according to this wind power generating set in each traffic coverage
Speed and optimum torque, fitting obtain revised rotary speed-torque curve.
Figure 11 c is the structural schematic diagram of the another embodiment of power optimization device of wind power generating set of the present invention.Such as Figure 11 c
Shown, optionally, optimized rotating speed and optimum torque determination unit specifically include:
First revolving speed determines subelement, for being set in each traffic coverage according to the minimum speed in traffic coverage
The first torque corresponding with minimum speed, and determine corresponding first revolving speed when performance number maximum under the first torque；
Second revolving speed determines subelement, for being set in each traffic coverage according to the maximum speed in traffic coverage
The second torque corresponding with maximum speed, and determine corresponding second revolving speed when performance number maximum under the second torque；
Optimized rotating speed and optimum torque determine subelement, for according to the first revolving speed and the corresponding performance number of the second revolving speed
In maximum value, determine optimized rotating speed and optimum torque.
Optionally, processing module, further includes:
Authentication unit, the slope of the straight line for obtaining any two groups of optimized rotating speeds and optimum torque determination；
Whether the slope of detection straight line matches with default slope value.
Optionally, the device of the present embodiment can also include:
Sending module, for revised rotary speed-torque curve negotiating wind power plant central monitoring equipment to be sent to this wind
Remaining wind power generating set in electric field, so that remaining wind power generating set is according to revised rotary speed-torque curve motion.
As shown in figure 11b, optionally, processing module, further includes:
Temperature adjustmemt unit, is used for: according to environment temperature locating for remaining wind power generating set and revised revolving speed-
The corresponding environment temperature of torque value is modified processing to revised rotary speed-torque curve in torque curve.
As shown in figure 11b, optionally, temperature adjustmemt unit is specifically used for:
Processing is modified to revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates the torque at this wind power generating set environment temperature t2 in revised rotary speed-torque curve
Value, T1 indicate torque value of remaining wind power generating set at environment temperature t1.
Optionally, operation data further includes the identification code and running mark of this wind power generating set；Identification code indicates this wind
The type of power generator group；Running mark indicates the operating status of this wind power generating set.
The device of the present embodiment can be used for executing the technical solution of above-mentioned wind power generating set side embodiment of the method,
The realization principle and technical effect are similar, and details are not described herein again.
Figure 12 is the structural schematic diagram of one embodiment of wind power plant central monitoring equipment of the present invention.As shown in figure 12, this implementation
The wind power plant central monitoring equipment of example, comprising:
Module is obtained, refers to wind power generating set in the operation data of power coefficient constant region for obtaining；
Processing module, for being turned to reference wind power generating set in power coefficient constant region according to operation data
Speed-torque curve is modified, and obtains revised rotary speed-torque curve；Revised rotary speed-torque curve indicates to refer to wind
The corresponding relationship of revolving speed and torque of the power generator group in performance number maximum；
Sending module, for revised rotary speed-torque curve to be sent to all wind power generating sets in wind power plant,
So that wind power generating set is according to revised rotary speed-torque curve motion.
Optionally, module is obtained, is specifically used for:
The tachometer value of the power coefficient constant region of reference wind power generating set is divided at least two traffic coverages；
Receive the corresponding section operation data of each traffic coverage for referring to wind power generating set；Each section operation data
Including multiple groups tachometer value, torque value, performance number；Wherein, operation data includes the section operation data of each traffic coverage.
Optionally, processing module is specifically used for:
According to the section operation data of each traffic coverage, obtains and refer to wind power generating set function in each traffic coverage
Optimized rotating speed and optimum torque when rate value maximum；
According to optimized rotating speed and optimum torque of the reference wind power generating set in each traffic coverage, fitting obtains amendment
Rotary speed-torque curve afterwards.
Optionally, processing module is specifically used for:
It is first turn corresponding with minimum speed according to the minimum speed setting in traffic coverage in each traffic coverage
Square, and obtain corresponding first revolving speed when performance number maximum under the first torque；
It is second turn corresponding with maximum speed according to the maximum speed setting in traffic coverage in each traffic coverage
Square, and obtain corresponding second revolving speed when performance number maximum under the second torque；
According to the maximum value in the first revolving speed and the corresponding performance number of the second revolving speed, optimized rotating speed and optimal turn are obtained
Square.
Optionally, processing module is also used to:
According to torque value pair in environment temperature locating for remaining wind power generating set and revised rotary speed-torque curve
The environment temperature answered is modified processing to revised rotary speed-torque curve；Remaining wind power generating set is to remove in wind power plant
Wind power generating set outside with reference to wind power generating set.
Optionally, processing module is specifically used for:
Processing is modified to revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates to refer to torque value of the wind power generating set at environment temperature t2 in the rotary speed-torque curve,
T1 indicates torque value of remaining wind power generating set at environment temperature t1.
Optionally, operation data further includes the identification code and running mark with reference to wind power generating set；Identification code indicates this
The type of wind power generating set；Running mark indicates to refer to the operating status of wind power generating set.
The device of the present embodiment can be used for executing the technical side of above-mentioned wind power plant central monitoring equipment side embodiment of the method
Case, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Figure 13 is the structural schematic diagram of one embodiment of master control system of wind power generating set of the present invention.As shown in figure 13, originally
The master control system of the wind power generating set of embodiment may include: memory, controller；Wherein, memory, for storing journey
Sequence；Specifically, program may include program code, and program code includes computer operation instruction.Memory may be comprising random
It accesses memory (random accessmemory, abbreviation RAM), it is also possible to further include nonvolatile memory (non-
Volatile memory), a for example, at least magnetic disk storage.
Controller is for calling executing instruction in memory, execution following steps:
This wind power generating set is obtained in the operation data of power coefficient constant region；
Rotary speed-torque curve according to operation data to this wind power generating set in power coefficient constant region is repaired
Just, revised rotary speed-torque curve is obtained；Revised rotary speed-torque curve indicates this wind power generating set in performance number
The corresponding relationship of revolving speed and torque when maximum；
This wind power generating set is controlled according to revised rotary speed-torque curve motion.
Optionally, controller is specifically used for:
The tachometer value of the power coefficient constant region of reference blower is divided at least two traffic coverages；
Obtain the corresponding section operation data of each traffic coverage of this wind power generating set；Each section operation data packet
Include multiple groups tachometer value, torque value, performance number；Wherein, operation data includes the section operation data of each traffic coverage.
Optionally, controller is specifically used for:
According to the section operation data of each traffic coverage, this wind power generating set power in each traffic coverage is determined
Optimized rotating speed and optimum torque when value is maximum；
According to optimized rotating speed and optimum torque of this wind power generating set in each traffic coverage, after fitting obtains amendment
Rotary speed-torque curve.
Optionally, controller is specifically used for:
It is first turn corresponding with minimum speed according to the minimum speed setting in traffic coverage in each traffic coverage
Square, and determine corresponding first revolving speed when performance number maximum under the first torque；
It is second turn corresponding with maximum speed according to the maximum speed setting in traffic coverage in each traffic coverage
Square, and determine corresponding second revolving speed when performance number maximum under the second torque；
According to the maximum value in the first revolving speed and the corresponding performance number of the second revolving speed, optimized rotating speed and optimal turn are determined
Square.
Optionally, controller is specifically used for:
Obtain the slope of the straight line of any two groups of optimized rotating speeds and optimum torque determination；
Whether the slope of detection straight line matches with default slope value.
Optionally, the master control system of the wind power generating set of the present embodiment can also include:
Transmitter, for revised rotary speed-torque curve negotiating wind power plant central monitoring equipment to be sent to this wind-powered electricity generation
Remaining wind power generating set in, so that remaining wind power generating set is according to revised rotary speed-torque curve motion.
Optionally, controller is also used to:
It is corresponding according to torque value in environment temperature locating for remaining Wind turbines and revised rotary speed-torque curve
Environment temperature is modified processing to revised rotary speed-torque curve.
Optionally, controller is specifically used for:
Processing is modified to revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates torque of this wind power generating set at environment temperature t2 in revised rotary speed-torque curve
Value, T1 indicate torque value of remaining wind power generating set at environment temperature t1.
Optionally, operation data further includes the identification code and running mark of this wind power generating set；Identification code indicates this wind
The type of power generator group；Running mark indicates the operating status of this wind power generating set.
In the present embodiment, after carrying out rotary speed-torque curve amendment, wind power generating set turns according to revised revolving speed-
When square curve motion, for tip speed ratio closer to optimum tip-speed ratio, operational effect at this time is wind power generating set output
Performance number it is higher, wind energy utilization is also higher.
The function of sending module in above-mentioned apparatus can be realized by transmitter, obtain module, processing module and control
The function of module can be realized by controller.
Above-mentioned component is communicated by one or more bus.It will be understood by those skilled in the art that being shown in Figure 13
Equipment structure and do not constitute a limitation of the invention, it is also possible to hub-and-spoke configuration, may be used also either busbar network
To include perhaps combining certain components or different component layouts than illustrating more or fewer components.
It should be noted that for wind power generating set embodiment, since it essentially corresponds to embodiment of the method, institute
With the relevent part can refer to the partial explaination of embodiments of method.
Figure 14 is the structural schematic diagram of another embodiment of wind power plant central monitoring equipment of the present invention.As shown in figure 14, this reality
The wind power plant central monitoring equipment for applying example, may include: memory, processor and transmitter；Wherein, memory, for storing
Program；Specifically, program may include program code, and program code includes computer operation instruction.Memory may comprising with
Machine accesses memory (random access memory, abbreviation RAM), it is also possible to further include nonvolatile memory (non-
Volatile memory), a for example, at least magnetic disk storage.
Processor is for calling executing instruction in memory, execution following steps:
Obtain the operation data with reference to wind power generating set in power coefficient constant region；
Rotary speed-torque curve according to operation data to reference wind power generating set in power coefficient constant region carries out
Amendment, obtains revised rotary speed-torque curve；Revised rotary speed-torque curve is indicated with reference to wind power generating set in function
The corresponding relationship of revolving speed and torque when rate value maximum；
Transmitter, for revised rotary speed-torque curve to be sent to all wind power generating sets in wind power plant, with
Make wind power generating set according to revised rotary speed-torque curve motion.
Optionally, processor can be specifically used for:
The tachometer value of the power coefficient constant region of reference wind power generating set is divided at least two traffic coverages；
Correspondingly, transmitter is also used to receive the corresponding section operation number of each traffic coverage with reference to wind power generating set
According to；Each section operation data includes multiple groups tachometer value, torque value, performance number；Wherein, operation data includes each traffic coverage
Section operation data.
Optionally, processor can be specifically used for:
According to the section operation data of each traffic coverage, obtains and refer to wind power generating set function in each traffic coverage
Optimized rotating speed and optimum torque when rate value maximum；
According to optimized rotating speed and optimum torque of the reference wind power generating set in each traffic coverage, fitting obtains amendment
Rotary speed-torque curve afterwards.
Optionally, processor can be specifically used for:
It is first turn corresponding with minimum speed according to the minimum speed setting in traffic coverage in each traffic coverage
Square, and obtain corresponding first revolving speed when performance number maximum under first torque；
In each traffic coverage, according to the maximum speed setting corresponding with maximum speed second in the traffic coverage
Torque, and obtain corresponding second revolving speed when performance number maximum under the second torque；
According to the maximum value in the first revolving speed and the corresponding performance number of the second revolving speed, optimized rotating speed and optimal turn are obtained
Square.
Optionally, processor can be also used for:
According to torque value pair in environment temperature locating for remaining wind power generating set and revised rotary speed-torque curve
The environment temperature answered is modified processing to revised rotary speed-torque curve；Remaining wind power generating set is to remove in wind power plant
Wind power generating set outside with reference to wind power generating set.
Optionally, processor can be specifically used for:
Processing is modified to revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates to refer to torque value of the wind power generating set at environment temperature t2 in the rotary speed-torque curve,
T1 indicates torque value of remaining wind power generating set at environment temperature t1.
Optionally, operation data further includes the identification code and running mark with reference to wind power generating set；Identification code indicates this
The type of wind power generating set；Running mark indicates to refer to the operating status of wind power generating set.
In the present embodiment, after carrying out rotary speed-torque curve amendment, wind power generating set turns according to revised revolving speed-
When square curve motion, for tip speed ratio closer to optimum tip-speed ratio, operational effect at this time is wind power generating set output
Performance number it is higher, wind energy utilization is also higher.
The function of sending module in above-mentioned wind power plant central monitoring equipment can realize by transmitter, obtain module and
The function of processing module can be realized by processor.
Above-mentioned component is communicated by one or more bus.It will be understood by those skilled in the art that being shown in Figure 14
Equipment structure and do not constitute a limitation of the invention, it is also possible to hub-and-spoke configuration, may be used also either busbar network
To include perhaps combining certain components or different component layouts than illustrating more or fewer components.
It should be noted that for wind power plant central monitoring apparatus embodiments, since it essentially corresponds to method reality
Example is applied, so the relevent part can refer to the partial explaination of embodiments of method.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
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
Pipe present invention has been described in detail with reference to the aforementioned embodiments, 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 (22)
1. a kind of power optimization method of wind power generating set characterized by comprising
This wind power generating set is obtained in the operation data of power coefficient constant region；Described this wind power generating set of acquisition exists
The operation data of power coefficient constant region, comprising: by the power coefficient constant region of described wind power generating set
Tachometer value is divided at least two traffic coverages；Obtain the corresponding section operation of each traffic coverage of described wind power generating set
Data；Each section operation data includes multiple groups tachometer value, torque value, performance number；Wherein, the operation data includes each fortune
The section operation data in row section；
According to the operation data to described wind power generating set power coefficient constant region rotary speed-torque curve into
Row amendment, obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates described wind-power electricity generation
The corresponding relationship of revolving speed and torque of the unit in performance number maximum；
Described wind power generating set is controlled according to the revised rotary speed-torque curve motion.
2. the method according to claim 1, wherein it is described according to the operation data to described wind-power electricity generation
Unit is modified in the rotary speed-torque curve of power coefficient constant region, obtains revised rotary speed-torque curve, packet
It includes:
According to the section operation data of each traffic coverage, described wind power generating set power in each traffic coverage is determined
Optimized rotating speed and optimum torque when value is maximum；
According to optimized rotating speed and optimum torque of the described wind power generating set in each traffic coverage, repaired described in fitting acquisition
Rotary speed-torque curve after just.
3. according to the method described in claim 2, it is characterized in that, the section operation data according to each traffic coverage,
Obtain optimized rotating speed and optimum torque of the described wind power generating set in each traffic coverage when performance number maximum, comprising:
In each traffic coverage, according to the minimum speed setting corresponding with the minimum speed first in the traffic coverage
Torque, and determine corresponding first revolving speed when performance number maximum under first torque；
In each traffic coverage, according to the maximum speed setting corresponding with the maximum speed second in the traffic coverage
Torque, and determine corresponding second revolving speed when performance number maximum under second torque；
According to the maximum value in first revolving speed and the corresponding performance number of the second revolving speed, the optimized rotating speed and described is determined
Optimum torque.
4. according to the method in claim 2 or 3, which is characterized in that it is described according to described wind power generating set every
Optimized rotating speed and optimum torque in a traffic coverage also wrap after fitting obtains the revised rotary speed-torque curve
It includes:
Obtain the slope of the straight line of any two groups of optimized rotating speeds and optimum torque determination；
Whether the slope for detecting the straight line matches with default slope value.
5. method according to claim 1-3, which is characterized in that the operation data further includes described wind-force
The identification code and running mark of generating set；The identification code indicates the type of described wind power generating set；The operation mark
Will indicates the operating status of described wind power generating set.
6. method according to claim 1-3, which is characterized in that further include:
The revised rotary speed-torque curve negotiating wind power plant central monitoring equipment is sent to its lingering remnants of past customs in this wind power plant
Power generator group, so that remaining described wind power generating set is according to the revised rotary speed-torque curve motion.
7. according to the method described in claim 6, it is characterized in that, the revised rotary speed-torque curve is led to described
It crosses before remaining wind power generating set that wind power plant central monitoring equipment is sent in this wind power plant, further includes:
According to torque in environment temperature locating for remaining described wind power generating set and the revised rotary speed-torque curve
It is worth corresponding environment temperature and processing is modified to the revised rotary speed-torque curve.
8. the method according to the description of claim 7 is characterized in that ring locating for described remaining wind power generating set according to
The corresponding environment temperature of torque value is to the revised revolving speed-in border temperature and the revised rotary speed-torque curve
Torque curve is modified processing, comprising:
Processing is modified to the revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates described wind power generating set at environment temperature t2 in the revised rotary speed-torque curve
Torque value, T1 indicate the torque value of remaining wind power generating set at environment temperature t1.
9. a kind of power optimization method of wind power generating set characterized by comprising
Obtain the operation data with reference to wind power generating set in power coefficient constant region；Described obtain refers to wind-driven generator
Operation data of the group in power coefficient constant region, comprising: the power coefficient with reference to wind power generating set is permanent
The tachometer value for determining area is divided at least two traffic coverages；It is corresponding to receive each traffic coverage with reference to wind power generating set
Section operation data；Each section operation data includes multiple groups tachometer value, torque value, performance number；Wherein, the operation data packet
Include the section operation data of each traffic coverage；
According to the operation data to it is described with reference to wind power generating set power coefficient constant region rotary speed-torque curve
It is modified, obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates described and refers to wind-force
The corresponding relationship of revolving speed and torque of the generating set in performance number maximum；
The revised rotary speed-torque curve is sent to all wind power generating sets in wind power plant, so that the wind-force
Generating set is according to the revised rotary speed-torque curve motion.
10. according to the method described in claim 9, it is characterized in that, described refer to wind-force to described according to the operation data
Generating set is modified in the rotary speed-torque curve of power coefficient constant region, and it is bent to obtain revised rotary speed-torque
Line, comprising:
According to the section operation data of each traffic coverage, determine described with reference to wind power generating set function in each traffic coverage
Optimized rotating speed and optimum torque when rate value maximum；
According to the optimized rotating speed and optimum torque with reference to wind power generating set in each traffic coverage, it is fitted described in obtaining
Revised rotary speed-torque curve.
11. according to the method described in claim 10, it is characterized in that, described run number according to the section of each traffic coverage
According to, the optimized rotating speed and optimum torque with reference to wind power generating set in each traffic coverage when performance number maximum is obtained,
Include:
In each traffic coverage, according to the minimum speed setting corresponding with the minimum speed first in the traffic coverage
Torque, and determine corresponding first revolving speed when performance number maximum under first torque；
In each traffic coverage, according to the maximum speed setting corresponding with the maximum speed second in the traffic coverage
Torque, and determine corresponding second revolving speed when performance number maximum under second torque；
According to the maximum value in first revolving speed and the corresponding performance number of the second revolving speed, the optimized rotating speed and described is determined
Optimum torque.
12. method described in 0 or 11 according to claim 1, which is characterized in that refer to wind power generating set according to described described
Optimized rotating speed and optimum torque in each traffic coverage, after fitting obtains the revised rotary speed-torque curve, also
Include:
Obtain the slope of the straight line of any two groups of optimized rotating speeds and optimum torque determination；
Whether the slope for detecting the straight line matches with default slope value.
13. a kind of power optimization device of wind power generating set characterized by comprising
Module is obtained, for obtaining this wind power generating set in the operation data of power coefficient constant region；The acquisition mould
Block is specifically used for: the tachometer value of the power coefficient constant region of described wind power generating set is divided at least two operations
Section；Obtain the corresponding section operation data of each traffic coverage of described wind power generating set；Each section operation data
Including multiple groups tachometer value, torque value, performance number；Wherein, the operation data includes the section operation data of each traffic coverage；
Processing module, for being turned to described wind power generating set in power coefficient constant region according to the operation data
Speed-torque curve is modified, and obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates institute
State the corresponding relationship of revolving speed and torque of this wind power generating set in performance number maximum；
Control module, for controlling described wind power generating set according to the revised rotary speed-torque curve motion.
14. device according to claim 13, which is characterized in that the processing module specifically includes:
Optimized rotating speed and optimum torque determination unit determine described for the section operation data according to each traffic coverage
Optimized rotating speed and optimum torque of the wind power generating set in each traffic coverage when performance number maximum；
Rotary speed-torque curve matching unit, for optimal turn according to described wind power generating set in each traffic coverage
Speed and optimum torque, fitting obtain the revised rotary speed-torque curve.
15. device according to claim 14, which is characterized in that the optimized rotating speed and optimum torque determination unit, tool
Body includes:
First revolving speed determines subelement, for being set in each traffic coverage according to the minimum speed in the traffic coverage
The first torque corresponding with the minimum speed, and determine corresponding first revolving speed when performance number maximum under first torque；
Second revolving speed determines subelement, for being set in each traffic coverage according to the maximum speed in the traffic coverage
The second torque corresponding with the maximum speed, and determine corresponding second revolving speed when performance number maximum under second torque；
Optimized rotating speed and optimum torque determine subelement, for according to first revolving speed and the corresponding performance number of the second revolving speed
In maximum value, determine the optimized rotating speed and the optimum torque.
16. device according to claim 14 or 15, which is characterized in that the processing module further includes authentication unit, is used
In:
Obtain the slope of the straight line of any two groups of optimized rotating speeds and optimum torque determination；
Whether the slope for detecting the straight line matches with default slope value.
17. the described in any item devices of 3-15 according to claim 1, which is characterized in that further include:
Sending module, for the revised rotary speed-torque curve negotiating wind power plant central monitoring equipment to be sent to this wind
Remaining wind power generating set in electric field, so that remaining described wind power generating set is bent according to the revised rotary speed-torque
Line operation.
18. device according to claim 17, which is characterized in that the processing module further includes temperature adjustmemt unit, is used
In:
According to torque in environment temperature locating for remaining described wind power generating set and the revised rotary speed-torque curve
It is worth corresponding environment temperature and processing is modified to the revised rotary speed-torque curve.
19. device according to claim 18, which is characterized in that the temperature adjustmemt unit is specifically used for:
Processing is modified to the revised rotary speed-torque curve according to the following formula:
Wherein, T2 indicates that torque value of this wind power generating set at environment temperature t2 in the rotary speed-torque curve, T1 indicate
Torque value of remaining the described wind power generating set at environment temperature t1.
20. a kind of wind power plant central monitoring equipment characterized by comprising
Module is obtained, refers to wind power generating set in the operation data of power coefficient constant region for obtaining；The acquisition
Module is specifically used for: the tachometer value of the power coefficient constant region with reference to wind power generating set is divided at least two
Traffic coverage；Receive the corresponding section operation data of each traffic coverage with reference to wind power generating set；Each section fortune
Row data include multiple groups tachometer value, torque value, performance number；Wherein, the operation data includes the section fortune of each traffic coverage
Row data；
Processing module, for according to the operation data to it is described with reference to wind power generating set in power coefficient constant region
Rotary speed-torque curve is modified, and obtains revised rotary speed-torque curve；The revised rotary speed-torque curve indicates
The corresponding relationship with reference to the wind power generating set revolving speed in performance number maximum and torque；
Sending module, for the revised rotary speed-torque curve to be sent to all wind power generating sets in wind power plant,
So that the wind power generating set is according to the revised rotary speed-torque curve motion.
21. wind power plant central monitoring equipment according to claim 20, which is characterized in that the processing module is specific to use
In:
According to the section operation data of each traffic coverage, determine described with reference to wind power generating set function in each traffic coverage
Optimized rotating speed and optimum torque when rate value maximum；
According to the optimized rotating speed and optimum torque with reference to wind power generating set in each traffic coverage, it is fitted described in obtaining
Revised rotary speed-torque curve.
22. wind power plant central monitoring equipment according to claim 21, which is characterized in that the processing module is specific to use
In:
In each traffic coverage, according to the minimum speed setting corresponding with the minimum speed first in the traffic coverage
Torque, and determine corresponding first revolving speed when performance number maximum under first torque；
In each traffic coverage, according to the maximum speed setting corresponding with the maximum speed second in the traffic coverage
Torque, and determine corresponding second revolving speed when performance number maximum under second torque；
According to the maximum value in first revolving speed and the corresponding performance number of the second revolving speed, the optimized rotating speed and described is determined
Optimum torque.
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| CN109185055B (en) * | 2018-10-19 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Method and device for quickly starting wind generating set and computer readable storage medium |
| CN113007012B (en) * | 2019-12-19 | 2022-09-23 | 新疆金风科技股份有限公司 | Torque control coefficient optimizing method and device and wind generating set |
| CN114251235A (en) * | 2020-09-22 | 2022-03-29 | 新疆金风科技股份有限公司 | Method and device for determining relation between rotating speed and torque and capturing wind energy |
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| CN100409562C (en) * | 2006-11-07 | 2008-08-06 | 合肥工业大学 | Control method for tracking maximum power point of wind electric power generation |
| CN101915219B (en) * | 2010-09-03 | 2012-05-23 | 天津大学 | Wind-power generator maximal wind-energy capture control method based on self-adaptive theory |
| GB2491548A (en) * | 2010-09-30 | 2012-12-12 | Vestas Wind Sys As | Over-rating control of a wind turbine power plant |
| CN103147918B (en) * | 2013-02-28 | 2015-07-08 | 深圳市风发科技发展有限公司 | Control method and control device for vertical-axis wind generating set |
| CN103603771B (en) * | 2013-11-12 | 2016-09-28 | 山东中车风电有限公司 | A kind of wind power generating set optimal wind energy catching method |
| CN104696161B (en) * | 2015-03-10 | 2017-11-14 | 中国船舶重工集团海装风电股份有限公司 | A kind of pitch control method and device of wind power generating set maximal wind-energy capture |
| CN107339194B (en) * | 2016-04-28 | 2019-05-07 | 北京天诚同创电气有限公司 | Optimal tip speed ratio control method, data processing method, device and system |
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