CN107832899A - Optimization method, device and the realization device of output of wind electric field - Google Patents
Optimization method, device and the realization device of output of wind electric field Download PDFInfo
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Abstract
The invention provides a kind of optimization method of output of wind electric field, device and realization device；Wherein, this method includes：The arrangement information of Wind turbines in acquisition wind speed, wind direction, and wind power plant；According to the corresponding relation of the input wind speed of wind speed, wind direction, arrangement information and each typhoon group of motors for pre-establishing, propeller pitch angle and thrust coefficient, the input wind speed of each typhoon group of motors is determined；According to the input wind speed of each typhoon group of motors, the corresponding relation of propeller pitch angle and power output, the gross output of wind power plant is determined；The propeller pitch angle of each typhoon group of motors or thrust coefficient are determined the propeller pitch angle of each typhoon group of motors corresponding to the maximum of gross output, propeller pitch angle sent to corresponding Wind turbines as adjustment parameter, gross output as object function.The present invention can realize the maximization of Power Output for Wind Power Field, and wind energy caused by wake effect is lost between reducing Wind turbines, improves the generating total amount of wind power plant.
Description
Technical field
The present invention relates to wind power plant optimisation technique field, more particularly, to a kind of optimization method of output of wind electric field, device
And realization device.
Background technology
At present, the wind power plant optimal way of existing meter and wake effect is mainly that the wind power of wind power plant is divided
Match somebody with somebody, i.e., take influencing each other for Wind turbines into account when power is predicted, with the power distribution strategies being optimal；Due to
This optimal way only relates to power distribution, influencing each other between reduction Wind turbines, for example, wake effect, causes difficulty
To realize the maximization of Power Output for Wind Power Field.
The content of the invention
In view of this, it is an object of the invention to provide a kind of optimization method of output of wind electric field, device and realization device,
Lost with reducing wind energy caused by wake effect between Wind turbines, realize the maximization of Power Output for Wind Power Field, improve wind-powered electricity generation
The generating total amount of field.
In a first aspect, the embodiments of the invention provide a kind of optimization method of output of wind electric field, including：Obtain wind speed, wind
To, and in wind power plant Wind turbines arrangement information；According to wind speed, wind direction, arrangement information and each typhoon pre-established
The corresponding relation for inputting wind speed, propeller pitch angle and thrust coefficient of group of motors, determine the input wind speed of each typhoon group of motors；According to each
The corresponding relation for inputting wind speed, propeller pitch angle and power output of typhoon group of motors, determine the gross output of wind power plant；By each
The propeller pitch angle or thrust coefficient of Wind turbines determine gross output as adjustment parameter, gross output as object function
Maximum corresponding to each typhoon group of motors propeller pitch angle, propeller pitch angle is sent to corresponding Wind turbines.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, on
State input wind speed, propeller pitch angle and the thrust system according to wind speed, wind direction, arrangement information and each typhoon group of motors pre-established
Several corresponding relations, the step of determining the input wind speed of each typhoon group of motors, including：Arrangement information is projected to wind direction,
Generate the sequence of each typhoon group of motors；According to wind speed, the height ratios of wind devices and First Wind turbines in sequence is surveyed, calculates the
The input wind speed of one typhoon group of motors；According to wind speed, survey wind devices and height ratio, the jth typhoon of jth typhoon group of motors in sequence
The wind sweeping area of group of motors, the wake flow shielded area of the kth typhoon group of motors of wind direction upstream, the input wind of kth typhoon group of motors
The corresponding relation of speed, propeller pitch angle and thrust coefficient, calculate the input wind speed of jth typhoon group of motors；Wherein, j is the nature more than 1
Number；K=1,2 ..., j-1.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide second of first aspect
Possible embodiment, wherein, the step of the input wind speed of above-mentioned calculating First Wind turbines, including：Calculate the first typhoon
The natural wind speed of group of motors：Wherein, vjFor the natural wind speed of jth typhoon group of motors, j=1, v0Set to survey wind
Standby place's wind speed, h are the height above sea level for surveying wind devices, hjFor the height above sea level of jth typhoon group of motors；The natural wind speed is determined
For the input wind speed of the First Wind turbines.
With reference to second of possible embodiment of first aspect, the embodiments of the invention provide the third of first aspect
Possible embodiment, wherein, the step of the input wind speed of above-mentioned calculating jth typhoon group of motors, including：J initial value is set
For 2, following circulate operations are performed：According to the wind sweeping area of jth typhoon group of motors, and the kth typhoon group of motors of wind direction upstream
Wake flow shielded area, calculate jth typhoon group of motors is influenceed coefficient by kth typhoon group of motors wake effect；Wherein, k=1,
2、…、j-1；Calculate wake flow wind speed v of the kth typhoon group of motors at jth typhoon group of motorsk：
Wherein, vjFor the natural wind speed at jth typhoon group of motors, RjWind radius, R are swept for jth typhoon group of motorsjkFor
Wake flow expansion radius of the k typhoons group of motors at jth typhoon group of motors, CkFor the thrust coefficient of kth typhoon group of motors, vk0For
The input wind speed of k typhoon group of motors；The thrust coefficient of kth typhoon group of motors is according to input wind speed, the pitch of kth typhoon group of motors
The corresponding relation of angle and thrust coefficient determines；
Calculate the input wind speed v of jth typhoon group of motorsj0：
Wherein, vjFor the natural wind speed at jth typhoon group of motors, B (j, k) is kth typhoon group of motors to jth typhoon motor
The influence coefficient of group, vkFor wake flow wind speed of the kth typhoon group of motors at jth typhoon group of motors；Judge whether j is equal to wind turbine
The total amount of group, if not, setting j=j+1, above-mentioned circulate operation is continued executing with, until j is equal to the total amount of Wind turbines.
With reference to the third possible embodiment of first aspect, the embodiments of the invention provide the 4th of first aspect kind
Possible embodiment, wherein, above-mentioned calculating jth typhoon group of motors is influenceed coefficient by kth typhoon group of motors wake effect
Step, including：Calculate jth typhoon group of motors is influenceed coefficient B (j, k)=A by kth typhoon group of motors wake effectshad_jk/
Arot_j；Wherein, k=1,2 ..., j-1；Ashad_jkFor wake flow shielded area of the kth typhoon group of motors at jth typhoon group of motors；
Arot_jFor the wind sweeping area of jth typhoon group of motors.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, on
Stating method also includes：Real-time wind speed and direction is obtained by surveying wind devices, performs above-mentioned first aspect to the 4th of first aspect
Any described method in the possible embodiment of kind.
Second aspect, the embodiments of the invention provide a kind of optimization device of output of wind electric field, including：Acquisition of information mould
Block, for obtain wind speed, in wind direction, and wind power plant Wind turbines arrangement information；Wind speed determining module is inputted, for basis
Wind speed, wind direction, the input wind speed of arrangement information and each typhoon group of motors for pre-establishing, pair of propeller pitch angle and thrust coefficient
It should be related to, determine the input wind speed of each typhoon group of motors；Gross output determining module, for according to the defeated of each typhoon group of motors
Enter the corresponding relation of wind speed, propeller pitch angle and power output, determine the gross output of wind power plant；Propeller pitch angle determining module, is used for
Using the propeller pitch angle or thrust coefficient of each typhoon group of motors as adjustment parameter, gross output is as object function, it is determined that total defeated
Go out the propeller pitch angle of each typhoon group of motors corresponding to the maximum of power, propeller pitch angle is sent to corresponding Wind turbines.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein, on
Input wind speed determining module is stated, is additionally operable to：Arrangement information is projected to wind direction, generates the sequence of each typhoon group of motors；Root
According to wind speed, the height ratio of survey wind devices and First Wind turbines in sequence, the input wind speed of calculating First Wind turbines；Root
According to wind speed, wind devices are surveyed with the height of jth typhoon group of motors in sequence than, the wind sweeping area of jth typhoon group of motors, wind direction upstream
The wake flow shielded area of kth typhoon group of motors, the input wind speed of kth typhoon group of motors, the correspondence of propeller pitch angle and thrust coefficient
Relation, calculate the input wind speed of jth typhoon group of motors；Wherein, j is the natural number more than 1；K=1,2 ..., j-1.
The third aspect, the embodiments of the invention provide a kind of optimization realization device of output of wind electric field, including processor and
Machinable medium, machinable medium are stored with the machine-executable instruction that can be executed by processor, processing
Device performs machine-executable instruction to realize the method for above-mentioned first aspect.
Fourth aspect, the embodiments of the invention provide a kind of machinable medium, machinable medium storage
There is machine-executable instruction, when being called and being performed by processor, machine-executable instruction promotes to handle machine-executable instruction
The method that device realizes above-mentioned first aspect.
The embodiment of the present invention brings following beneficial effect：
Optimization method, device and the realization device of a kind of output of wind electric field provided in an embodiment of the present invention, according to wind speed, wind
To, arrangement information and the corresponding relation for inputting wind speed, propeller pitch angle and thrust coefficient, it may be determined that the input wind of Wind turbines
Speed；According to the corresponding relation of input wind speed, propeller pitch angle and power output, it may be determined that the gross output of wind power plant；Again by wind
The propeller pitch angle or thrust coefficient of group of motors are as adjustment parameter, and gross output is as object function, it may be determined that total output work
The propeller pitch angle of each typhoon group of motors corresponding to the maximum of rate, and then propeller pitch angle is sent to corresponding Wind turbines；Which
It accurately can comprehensively consider that each Wind turbines are influenceed by upstream Wind turbines wake flow, so as to obtain more accurate each wind-powered electricity generation
The input wind speed of unit, then each Wind turbines corresponding to wind power plant gross output maximum are obtained by way of Optimization Solution
Propeller pitch angle regulation scheme；By adjusting propeller pitch angle, wind energy caused by wake effect is lost between reducing Wind turbines, is improved
The generating total amount of wind power plant.
Other features and advantages of the present invention will illustrate in the following description, or, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or the above-mentioned technology by implementing the present invention can be learnt.
To enable the above objects, features and advantages of the present invention to become apparent, better embodiment cited below particularly, and match somebody with somebody
Accompanying drawing appended by conjunction, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the optimization method of output of wind electric field provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the optimization method of another output of wind electric field provided in an embodiment of the present invention；
Fig. 3 is that the sequence of Wind turbines is shown in the optimization method of another output of wind electric field provided in an embodiment of the present invention
It is intended to；
Fig. 4 is in the optimization method of another output of wind electric field provided in an embodiment of the present invention, calculates jth typhoon group of motors
Input wind speed flow chart；
Fig. 5 is a kind of wake flow shielded area in the optimization method of another output of wind electric field provided in an embodiment of the present invention
With the schematic diagram of wind sweeping area；
Fig. 6 is another wake flow block surface in the optimization method of another output of wind electric field provided in an embodiment of the present invention
The schematic diagram of product and wind sweeping area；
Fig. 7 is a kind of structural representation of the optimization device of output of wind electric field provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation of the optimization realization device of output of wind electric field provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
The wind power plant optimal way of existing meter and wake effect is mainly that the wind power of wind power plant is allocated, and
The wake effect etc. reduced between Wind turbines of not taking measures on customs clearance influences, meanwhile, considering when influencing each other of Wind turbines,
The relatively simple proportionate relationship of generally use, it is larger with truth error, and the sort method of Wind turbines is needed in difference
The coordinate of each blower fan is converted during wind direction, process is relatively cumbersome, and practicality is poor.
Inventor has found in research process, and can effectively reduce wake flow between Wind turbines by adjusting propeller pitch angle imitates
Should, to realize the maximization of Power Output for Wind Power Field.Based on this, the embodiments of the invention provide a kind of optimization of output of wind electric field
Method, apparatus and realization device；The technology can apply in wind power plant during the optimal control of each generating set；The skill
Art can use related software or hardware to realize, be described below by embodiment.
A kind of flow chart of the optimization method of output of wind electric field shown in Figure 1；This method can be performed by server；
Comprise the following steps：
Step S102, obtain wind speed, in wind direction, and wind power plant Wind turbines arrangement information；
Above-mentioned wind speed and direction can be the real-time wind speed and direction of current wind power plant, specifically can be by wind power plant
Wind devices are surveyed to measure；The wind speed and direction can also be the Chang Fengdu and direction of prevailing wind from historical data；In above-mentioned wind power plant
The arrangement information of Wind turbines generally includes the height, each of the geographical location information of Wind turbines in wind power plant, each Wind turbines
The information such as the blade radiuses of Wind turbines, wind sweeping area.
Step S104, according to wind speed, wind direction, arrangement information and each typhoon group of motors pre-established input wind speed,
The corresponding relation of propeller pitch angle and thrust coefficient, determine the input wind speed of each typhoon group of motors；
Generally, shadow of the input wind speed of each typhoon group of motors by each typhoon group of motors wake flow along wind direction upstream
Ring；And the input wind speed of the Wind turbines in wind direction downstream is usually less than the input wind of the Wind turbines in wind direction upstream
Speed；Therefore, in order to accurately determine the input wind speed of each typhoon group of motors, it is necessary first to accurately and comprehensively obtain current wind-powered electricity generation
Each typhoon group of motors of unit upstream is to the wake effects of the Wind turbines, for example, certain upstream demeanour unit is in the Wind turbines
The wake effect range size at place, wake flow wind speed etc.；And then further according to upstream each typhoon group of motors to the tails of the Wind turbines
Stream influences, on the basis of natural wind speed corresponding to the Wind turbines, it is determined that accurately inputting wind speed.
Step S106, according to the corresponding relation of the input wind speed of each typhoon group of motors, propeller pitch angle and power output, determine wind
The gross output of electric field；
The input wind speed of above-mentioned each typhoon group of motors, the corresponding relation of propeller pitch angle and thrust coefficient and input wind speed, oar
The corresponding relation of elongation and power output, it can be realized, can also be realized by way of matched curve by the form of form；
Above-mentioned corresponding relation can use the hardware parameter of each typhoon group of motors, be obtained by simulation calculation.
Step S108, using the propeller pitch angle of each typhoon group of motors or thrust coefficient as adjustment parameter, gross output conduct
Object function, the propeller pitch angle of each typhoon group of motors corresponding to the maximum of gross output is determined, propeller pitch angle is sent to corresponding
Wind turbines.
For example, can be excellent as object function as adjustment parameter, gross output using the propeller pitch angle of each typhoon group of motors
Change is when to solve gross output be maximum, the propeller pitch angle of each typhoon group of motors；The pitch angular data is sent to corresponding again
Wind turbines, the true propeller pitch angle of regulating wind power unit, to realize under current wind direction, wind speed regulation, wind power plant obtains maximum
The gross output of value.
For another example, for a typhoon group of motors, its propeller pitch angle and thrust coefficient are one-to-one relationship, and hence it is also possible to will
The thrust coefficient of each typhoon group of motors is as adjustment parameter, and gross output is as object function；When Optimization Solution goes out total output
When power is maximum, the thrust coefficient of each typhoon group of motors now is converted into corresponding propeller pitch angle, then by the propeller pitch angle
Data are sent to corresponding Wind turbines.In addition, above-mentioned adjustment parameter can also be yaw angle, power etc..
A kind of optimization method of output of wind electric field provided in an embodiment of the present invention, according to wind speed, wind direction, arrangement information, with
And the corresponding relation of input wind speed, propeller pitch angle and thrust coefficient, it may be determined that the input wind speed of Wind turbines；According to input wind
The corresponding relation of speed, propeller pitch angle and power output, it may be determined that the gross output of wind power plant；Again by the propeller pitch angle of Wind turbines
Or thrust coefficient, as adjustment parameter, gross output is as object function, it may be determined that the maximum of gross output is corresponding
Each typhoon group of motors propeller pitch angle, and then propeller pitch angle is sent to corresponding Wind turbines；Which can accurately comprehensively
Consider that each Wind turbines are influenceed by upstream Wind turbines wake flow, so as to obtain the input wind of more accurate each Wind turbines
Speed, then obtain by way of Optimization Solution the propeller pitch angle regulation of each Wind turbines corresponding to wind power plant gross output maximum
Scheme；By adjusting propeller pitch angle, wind energy caused by wake effect is lost between reducing Wind turbines, improves the hair of wind power plant
Electric total amount.
The flow chart of the optimization method of another output of wind electric field shown in Figure 2；This method is in method shown in Fig. 1
On the basis of realize；This method comprises the following steps：
Step S202, real-time wind speed and direction is obtained by surveying wind devices；Wherein, the survey wind devices can be anemometer tower,
Laser radar or ultrasonic wave.
Step S204, obtain the wind speed, in wind direction, and wind power plant Wind turbines arrangement information；
Step S206, the arrangement information is projected to wind direction, generate the sequence of each typhoon group of motors；
In the optimization method of another output of wind electric field shown in Figure 3, the sequence schematic diagram of Wind turbines；In Fig. 3
Illustrated by taking five typhoon group of motors as an example, establish X-axis along due east direction, direct north is established exemplified by Y-axis；Above-mentioned wind direction can
To be represented by wind angle, it is assumed that be 0 degree of wind angle when wind direction is due west, the direction that turns clockwise increases for wind angle angle
Direction, be 90 degree of wind angles for example, when wind direction is due south.
The arrangement information of five typhoon group of motors is as shown in figure 3, when wind direction is due west in wind power plant, along X-direction, from
The sequence of upwind to lower wind direction is followed successively by F01, F04, F03, F02, F05；Can be after sorting for the ease of subsequent treatment
Wind turbines carry out order label, for example, F01 marked as 1, F04 marked as 2, F03 marked as 3, F02 marked as 4, F05 labels
For 5.
Similarly, when wind direction is due south, along Y direction, the sequence from upwind to lower wind direction be followed successively by F04, F05,
F03、F01、F02；Equally can be the Wind turbines carry out order label after sequence for the ease of subsequent treatment.
Step S208, according to wind speed, the height ratio of survey wind devices and First Wind turbines in sequence, calculate the first typhoon
The input wind speed of group of motors；
Generally, do not influenceed along First Wind turbines in the sequence of wind direction by other blower fan wake flows, it inputs wind speed
The usually natural wind speed at the Wind turbines.Specifically, above-mentioned steps S208 can be accomplished in the following manner：
(1) natural wind speed of First Wind turbines is calculated：Wherein, vjFor jth typhoon group of motors
Natural wind speed, j=1, v0For survey wind devices at wind speed, h be survey wind devices height above sea level, hjFor the height above sea level of jth typhoon group of motors
Highly；
(2) natural wind speed is defined as to the input wind speed of First Wind turbines.
Step S210, according to wind speed, survey wind devices and the height ratio of jth typhoon group of motors, jth typhoon group of motors in sequence
Wind sweeping area, wind direction upstream kth typhoon group of motors wake flow shielded area, input wind speed, the pitch of kth typhoon group of motors
Angle and the corresponding relation of thrust coefficient, calculate the input wind speed of jth typhoon group of motors；Wherein, j is the natural number more than 1；K=
1、2、…、j-1。
In the optimization method of another output of wind electric field shown in Figure 4, the input wind speed of jth typhoon group of motors is calculated
Flow chart；Specifically, above-mentioned steps S210 can be accomplished in the following manner：
Step S2102, the initial value for setting j is 2, performs following circulate operations：
Step S2104, according to the wind sweeping area of jth typhoon group of motors, and the wake flow of the kth typhoon group of motors of wind direction upstream
Shielded area, calculate jth typhoon group of motors is influenceed coefficient by kth typhoon group of motors wake effect；Wherein, k=1,2 ..., j-
1；
In step S2104, jth typhoon group of motors can be calculated by following formula by kth typhoon group of motors wake flow shadow
Loud influence coefficient：B (j, k)=Ashad_jk/Arot_j；Wherein, k=1,2 ..., j-1；Ashad_jkIt is kth typhoon group of motors
Wake flow shielded area at j typhoon group of motors；Arot_jFor the wind sweeping area of jth typhoon group of motors.
In the optimization method of another output of wind electric field shown in Figure 5, a kind of wake flow shielded area and wind sweeping area
Schematic diagram；Seen along wind direction, jth typhoon group of motors sweeps wind region and kth typhoon group of motors at jth typhoon group of motors
Velocity wake region overlapping region area, as above-mentioned Ashad_jk。
In the optimization method of another output of wind electric field shown in Figure 6, another wake flow shielded area and wind face is swept
Long-pending schematic diagram；For jth typhoon group of motors, its upstream end shares j-1 typhoon group of motors；In actual operation, it is necessary to one by one
Judge velocity wake region of the j-1 typhoons group of motors at jth typhoon group of motors, if send out with the wind region of sweeping of jth typhoon group of motors
Life is overlapping, if it happens overlapping, that is, needs to calculate above-mentioned influence coefficient B (j, k).In Fig. 5, the typhoon of kth -1 group of motors and kth
Velocity wake region of the typhoon group of motors at jth typhoon group of motors overlaps with the wind region of sweeping of jth typhoon group of motors, because
This, it is necessary to calculate the influence coefficient B (j, k-1) of the typhoon group of motors of kth -1, and kth typhoon group of motors influence coefficient B (j,
k)。
Furthermore it is possible to calculate blower fan wake flow shielded area using Monte Carlo method, the ghost image effect between wake flow is taken into full account
Should；For example, if the wake flow occlusion area of the typhoon of kth -1 group of motors and kth typhoon group of motors at jth typhoon group of motors occurs
Overlapping, then the wake flow occlusion area of the kth typhoon group of motors in wind direction downstream covers a part of typhoon of kth -1 group of motors in jth platform
Wake flow occlusion area at Wind turbines, wake flow occlusion area area of the typhoon of kth -1 group of motors at jth typhoon group of motors subtract
It is small.
Step S2106, calculate wake flow wind speed V of the kth typhoon group of motors at jth typhoon group of motorsk：
Wherein, vjFor the natural wind speed at jth typhoon group of motors, RjWind radius, R are swept for jth typhoon group of motorsjkFor
Wake flow expansion radius of the k typhoons group of motors at jth typhoon group of motors, CkFor the thrust coefficient of kth typhoon group of motors, vk0For
The input wind speed of k typhoon group of motors；The thrust coefficient of kth typhoon group of motors is according to input wind speed, the pitch of kth typhoon group of motors
The corresponding relation of angle and thrust coefficient determines；
Because the input wind speed of kth typhoon group of motors has been calculated, and propeller pitch angle also can be straight from kth typhoon group of motors
Obtain and take, or query-relevant data obtains, and by inquiring about input wind speed, propeller pitch angle and the corresponding relation of thrust coefficient, can obtain
Above-mentioned thrust coefficient is obtained, and then calculates wake flow wind speed Vk；Similarly, the Wind turbines of other upstreams can be calculated in jth typhoon electricity
Wake flow wind speed at unit.
Step S2108, calculate the input wind speed v of jth typhoon group of motorsj0：
Wherein, vjFor the natural wind speed at jth typhoon group of motors, B (j, k) is kth typhoon group of motors to jth typhoon motor
The influence coefficient of group, vkFor wake flow wind speed of the kth typhoon group of motors at jth typhoon group of motors；
Step S2110, judges whether j is equal to the total amount of Wind turbines；If not, setting j=j+1, continue executing with above-mentioned
Step S404；If it is, terminate.
In the optimization method of another output of wind electric field shown in above-mentioned Fig. 4, the input wind speed of jth typhoon group of motors is calculated
Process step, by wind speed, wind devices can be surveyed and row is each by setting the form of wake model or three-dimensional wake flow model to realize
The height of typhoon group of motors than, the wind sweeping area of each typhoon group of motors, each Wind turbines of wind direction upstream wake flow shielded area,
The data inputs such as the corresponding relation for inputting wind speed, propeller pitch angle and thrust coefficient of each Wind turbines, should into above-mentioned wake model
Wake model carries out calculation process according to the process step shown in above-mentioned Fig. 4, you can wind turbine group is by tail in output wind power plant
Input wind speed under the influence of stream.
Step S212, according to the corresponding relation of the input wind speed of each typhoon group of motors, propeller pitch angle and power output, determine wind
The gross output of electric field；
Step S214, using the propeller pitch angle of each typhoon group of motors or thrust coefficient as adjustment parameter, gross output conduct
Object function, the propeller pitch angle of each typhoon group of motors corresponding to the maximum of gross output is determined, propeller pitch angle is sent to corresponding
Wind turbines.
Aforesaid way accurately can comprehensively consider that each Wind turbines are influenceed by upstream Wind turbines wake flow, so as to obtain
The input wind speed of more accurate each Wind turbines, then wind power plant gross output maximum is obtained by way of Optimization Solution
The propeller pitch angle regulation scheme of corresponding each Wind turbines；By adjusting propeller pitch angle, wake effect is made between reducing Wind turbines
Into wind energy loss, improve the generating total amount of wind power plant.
Corresponding to above method embodiment, a kind of structural representation of the optimization device of output of wind electric field shown in Figure 7；
The device includes：
Data obtaining module 70, for obtain wind speed, in wind direction, and wind power plant Wind turbines arrangement information；
Wind speed determining module 71 is inputted, for according to wind speed, wind direction, arrangement information and each typhoon electricity pre-established
The corresponding relation for inputting wind speed, propeller pitch angle and thrust coefficient of unit, determine the input wind speed of each typhoon group of motors；
Gross output determining module 72, for input wind speed, propeller pitch angle and the power output according to each typhoon group of motors
Corresponding relation, determine the gross output of wind power plant；
Propeller pitch angle determining module 73, for using the propeller pitch angle of each typhoon group of motors or thrust coefficient as adjustment parameter, always
Power output determines the propeller pitch angle of each typhoon group of motors corresponding to the maximum of gross output, by pitch as object function
Angle is sent to corresponding Wind turbines.
Above-mentioned input wind speed determining module, is additionally operable to：Arrangement information is projected to wind direction, generates each typhoon group of motors
Sequence；According to wind speed, the height ratio of survey wind devices and First Wind turbines in sequence, the defeated of First Wind turbines is calculated
Enter wind speed；According to wind speed, survey wind devices and the height of jth typhoon group of motors in sequence sweeps wind face than, jth typhoon group of motors
Product, the wake flow shielded area of the kth typhoon group of motors of wind direction upstream, input wind speed, propeller pitch angle and the thrust of kth typhoon group of motors
The corresponding relation of coefficient, calculate the input wind speed of jth typhoon group of motors；Wherein, j is the natural number more than 1；K=1,2 ..., j-
1。
The optimization device of output of wind electric field provided in an embodiment of the present invention, the output of wind electric field provided with above-described embodiment
Optimization method has identical technical characteristic, so can also solve identical technical problem, reaches identical technique effect.
A kind of structural representation of the optimization realization device of output of wind electric field shown in Figure 8；The equipment includes storage
Device 100 and processor 101；Wherein, memory 100 is used to store one or more computer instruction, one or more computer
Instruction is executed by processor, and to realize the optimization method of above-mentioned output of wind electric field, the optimization method of the output of wind electric field can wrap
Include the one or more in above method.
Further, the Network Management Equipment shown in Fig. 8 also includes bus 102 and communication interface 103, processor 101, communication interface
103 and memory 100 connected by bus 102.
Wherein, memory 100 may include high-speed random access memory (RAM, Random Access Memory),
Non-labile memory (non-volatile memory), for example, at least a magnetic disk storage may also be included.By extremely
A few communication interface 103 (can be wired or wireless) is realized logical between the system network element and at least one other network element
Letter connection, can use internet, wide area network, LAN, Metropolitan Area Network (MAN) etc..Bus 102 can be isa bus, pci bus or
Eisa bus etc..The bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only used in Fig. 8
One four-headed arrow represents, it is not intended that an only bus or a type of bus.
Processor 101 is probably a kind of IC chip, has the disposal ability of signal.It is above-mentioned in implementation process
Each step of method can be completed by the integrated logic circuit of the hardware in processor 101 or the instruction of software form.On
The processor 101 stated can be general processor, including central processing unit (Central Processing Unit, referred to as
CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital
Signal Processing, abbreviation DSP), application specific integrated circuit (Application Specific Integrated
Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or
Person other PLDs, discrete gate or transistor logic, discrete hardware components.It can realize or perform sheet
Disclosed each method, step and logic diagram in invention embodiment.General processor can be microprocessor or this at
It can also be any conventional processor etc. to manage device.The step of method with reference to disclosed in embodiment of the present invention, can direct body
Completion now is performed for hardware decoding processor, or completion is performed with the hardware in decoding processor and software module combination.It is soft
Part module can be located at random access memory, and flash memory, read-only storage, programmable read only memory or electrically erasable programmable are deposited
In the ripe storage medium in this areas such as reservoir, register.The storage medium is located at memory 100, and processor 101 reads storage
Information in device 100, with reference to its hardware complete aforementioned embodiments method the step of.
Further, embodiment of the present invention additionally provides a kind of machinable medium, the machinable medium
Machine-executable instruction is stored with, when being called and being performed by processor, machine-executable instruction promotees the machine-executable instruction
Processor is set to realize the optimization method of above-mentioned output of wind electric field, the optimization method of the output of wind electric field can include in above method
One or more.
Optimization method, device and the realization device for the output of wind electric field that the embodiment of the present invention is provided, according to wind speed and direction
Real-time measuring data, realize online rolling optimization calculative strategy；Realize upwind to leeward using the method for projection coordinate
To Wind turbines sort；The higher wake model of service precision, obtain each typhoon group of motors and accurately enter wind speed, and by wind
Depth displacement between machine counts, and improves optimization accuracy in computation；When calculating wake flow shielded area, while draw in view of driftage
The wake flow offset risen；Wind power plant EIAJ optimal control is realized using propeller pitch angle optimizing regulation.Reduce through the above way
Wind energy is lost caused by being influenced each other between blower fan, improves the precision of wake model in optimal control, is improved whole
The annual electricity generating capacity of wind power plant, and then add economic benefit.
The computer program production of the optimization method of the output of wind electric field that the embodiment of the present invention is provided, device and realization device
Product, including the computer-readable recording medium of program code is stored, the instruction that described program code includes can be used for before performing
Method described in the embodiment of the method for face, specific implementation can be found in embodiment of the method, will not be repeated here.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Embodiment described above, it is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
- A kind of 1. optimization method of output of wind electric field, it is characterised in that including：The arrangement information of Wind turbines in acquisition wind speed, wind direction, and wind power plant；According to the wind speed, the wind direction, it is described arrangement information and each typhoon group of motors pre-established input wind speed, The corresponding relation of propeller pitch angle and thrust coefficient, determine the input wind speed of each typhoon group of motors；According to the corresponding relation of the input wind speed of each typhoon group of motors, propeller pitch angle and power output, the total of the wind power plant is determined Power output；Using the propeller pitch angle of each typhoon group of motors or thrust coefficient as adjustment parameter, the gross output as object function, The propeller pitch angle of each typhoon group of motors corresponding to the maximum of the gross output is determined, the propeller pitch angle is sent to corresponding Wind turbines.
- 2. according to the method for claim 1, it is characterised in that described to be believed according to the wind speed, the wind direction, the arrangement The corresponding relation of the breath and input wind speed of each typhoon group of motors pre-established, propeller pitch angle and thrust coefficient, determines each typhoon The step of input wind speed of group of motors, including：The arrangement information is projected to the sequence for the wind direction, generating each typhoon group of motors；According to the wind speed, the height ratio of survey wind devices and First Wind turbines in the sequence, First wind turbine is calculated The input wind speed of group；According to the wind speed, the survey wind devices and the height ratio of jth typhoon group of motors, jth typhoon electricity in the sequence The wind sweeping area of unit, the wake flow shielded area of kth typhoon group of motors of the wind direction upstream, the kth typhoon group of motors The corresponding relation of wind speed, propeller pitch angle and thrust coefficient is inputted, calculates the input wind speed of jth typhoon group of motors；Wherein, j is more than 1 Natural number；K=1,2 ..., j-1.
- 3. according to the method for claim 2, it is characterised in that the step of the input wind speed for calculating First Wind turbines Suddenly, including：Calculate the natural wind speed of First Wind turbines：Wherein, vjFor the natural wind of jth typhoon group of motors Speed, j=1, v0For survey wind devices at wind speed, h be survey wind devices height above sea level, hjFor the height above sea level of jth typhoon group of motors；The natural wind speed is defined as to the input wind speed of the First Wind turbines.
- 4. according to the method for claim 3, it is characterised in that the step of the input wind speed for calculating jth typhoon group of motors Suddenly, including：The initial value for setting j is 2, performs following circulate operations：According to the wind sweeping area of the jth typhoon group of motors, and the wake flow block surface of the kth typhoon group of motors of the wind direction upstream Product, calculate the jth typhoon group of motors is influenceed coefficient by the kth typhoon group of motors wake effect；Wherein, k=1,2 ..., j-1；Calculate wake flow wind speed v of the kth typhoon group of motors at jth typhoon group of motorsk：<mrow> <msub> <mi>v</mi> <mi>k</mi> </msub> <mo>=</mo> <msub> <mi>v</mi> <mi>j</mi> </msub> <mo>&lsqb;</mo> <mn>1</mn> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <msqrt> <mrow> <mn>1</mn> <mo>-</mo> <msub> <mi>C</mi> <mi>k</mi> </msub> </mrow> </msqrt> <mo>)</mo> </mrow> <msup> <mrow> <mo>(</mo> <mfrac> <msub> <mi>R</mi> <mi>j</mi> </msub> <msub> <mi>R</mi> <mrow> <mi>j</mi> <mi>k</mi> </mrow> </msub> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> <msup> <mrow> <mo>(</mo> <mfrac> <msub> <mi>v</mi> <mrow> <mi>k</mi> <mn>0</mn> </mrow> </msub> <msub> <mi>v</mi> <mi>j</mi> </msub> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>&rsqb;</mo> <mo>;</mo> </mrow>Wherein, vjFor the natural wind speed at jth typhoon group of motors, RjWind radius, R are swept for jth typhoon group of motorsjkFor kth typhoon Wake flow expansion radius of the group of motors at jth typhoon group of motors, CkFor the thrust coefficient of kth typhoon group of motors, vk0For kth typhoon The input wind speed of group of motors；The thrust coefficient of the kth typhoon group of motors according to the input wind speed of the kth typhoon group of motors, The corresponding relation of propeller pitch angle and thrust coefficient determines；Calculate the input wind speed v of jth typhoon group of motorsj0：<mrow> <msub> <mi>v</mi> <mrow> <mi>j</mi> <mn>0</mn> </mrow> </msub> <mo>=</mo> <msqrt> <mrow> <msubsup> <mi>v</mi> <mi>j</mi> <mn>3</mn> </msubsup> <mo>+</mo> <munderover> <mi>&Sigma;</mi> <mrow> <mi>k</mi> <mo>=</mo> <mn>1</mn> </mrow> <mrow> <mi>j</mi> <mo>-</mo> <mn>1</mn> </mrow> </munderover> <mi>B</mi> <mrow> <mo>(</mo> <mi>j</mi> <mo>,</mo> <mi>k</mi> <mo>)</mo> </mrow> <mrow> <mo>(</mo> <msubsup> <mi>v</mi> <mi>k</mi> <mn>3</mn> </msubsup> <mo>-</mo> <msubsup> <mi>v</mi> <mi>j</mi> <mn>3</mn> </msubsup> <mo>)</mo> </mrow> </mrow> </msqrt> <mo>;</mo> </mrow>Wherein, vjFor the natural wind speed at jth typhoon group of motors, B (j, k) is kth typhoon group of motors to jth typhoon group of motors Influence coefficient, vkFor wake flow wind speed of the kth typhoon group of motors at jth typhoon group of motors；Judge whether j is equal to the total amount of Wind turbines, if not, setting j=j+1, continue executing with above-mentioned circulate operation, until j Equal to the total amount of Wind turbines.
- 5. according to the method for claim 4, it is characterised in that described to calculate the jth typhoon group of motors by the kth platform The step of influence coefficient of Wind turbines wake effect, including：Calculate the jth typhoon group of motors is influenceed coefficient by the kth typhoon group of motors wake effectB (j, k)=Ashad_jk/Arot_jWherein, k=1,2 ..., j-1；Ashad_jkFor wake flow shielded area of the kth typhoon group of motors at jth typhoon group of motors； Arot_jFor the wind sweeping area of jth typhoon group of motors.
- 6. according to the method for claim 1, it is characterised in that methods described also includes：Real-time wind speed and direction is obtained by surveying wind devices, perform claim requires any described methods of 1-5.
- A kind of 7. optimization device of output of wind electric field, it is characterised in that including：Data obtaining module, for obtain wind speed, in wind direction, and wind power plant Wind turbines arrangement information；Wind speed determining module is inputted, for information and being pre-established each according to the wind speed, the wind direction, the arrangement The corresponding relation for inputting wind speed, propeller pitch angle and thrust coefficient of typhoon group of motors, determine the input wind speed of each typhoon group of motors；Gross output determining module, the correspondence for the input wind speed according to each typhoon group of motors, propeller pitch angle and power output Relation, determine the gross output of the wind power plant；Propeller pitch angle determining module, it is described total defeated for using the propeller pitch angle of each typhoon group of motors or thrust coefficient as adjustment parameter Go out power as object function, the propeller pitch angle of each typhoon group of motors corresponding to the maximum of the gross output is determined, by institute Propeller pitch angle is stated to send to corresponding Wind turbines.
- 8. device according to claim 7, it is characterised in that the input wind speed determining module, be additionally operable to：The arrangement information is projected to the sequence for the wind direction, generating each typhoon group of motors；According to the wind speed, the height ratio of survey wind devices and First Wind turbines in the sequence, First wind turbine is calculated The input wind speed of group；According to the wind speed, the survey wind devices and the height ratio of jth typhoon group of motors, jth typhoon electricity in the sequence The wind sweeping area of unit, the wake flow shielded area of kth typhoon group of motors of the wind direction upstream, the kth typhoon group of motors The corresponding relation of wind speed, propeller pitch angle and thrust coefficient is inputted, calculates the input wind speed of jth typhoon group of motors；Wherein, j is more than 1 Natural number；K=1,2 ..., j-1.
- 9. the optimization realization device of a kind of output of wind electric field, it is characterised in that including processor and machinable medium, institute Stating that machinable medium is stored with can be by the machine-executable instruction of the computing device, the computing device institute Machine-executable instruction is stated to realize the method described in any one of claim 1 to 6.
- 10. a kind of machinable medium, it is characterised in that the machinable medium is stored with the executable finger of machine Order, for the machine-executable instruction when being called and being performed by processor, the machine-executable instruction promotes the processor Realize the method described in any one of claim 1 to 6.
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