CN114362248B - Machine distribution method and device for wind power plant - Google Patents
Machine distribution method and device for wind power plant Download PDFInfo
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- CN114362248B CN114362248B CN202210088702.4A CN202210088702A CN114362248B CN 114362248 B CN114362248 B CN 114362248B CN 202210088702 A CN202210088702 A CN 202210088702A CN 114362248 B CN114362248 B CN 114362248B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The application provides a method and a device for arranging wind power plants, wherein the method comprises the following steps: firstly, distributing the boundary of a target distributing area according to different spacing coefficients and wind generating set types to obtain boundary distributing schemes and boundary distributing machine numbers respectively corresponding to the different spacing coefficients; determining the number of in-field cloth machines corresponding to different spacing coefficients respectively according to the total cloth machine number and the boundary cloth machine number; determining at least one in-field machine distribution boundary according to at least one boundary interval and the boundary of the target machine distribution region, and updating the in-field machine distribution boundary according to the interval coefficient; according to the number of the cloth machines in each field, the cloth machines are respectively carried out on the area surrounded by the boundary of each field, and at least one field cloth machine scheme corresponding to the number of the cloth machines in each field is obtained; respectively arranging and combining a boundary cloth machine scheme and at least one in-field cloth machine scheme corresponding to each interval coefficient to obtain a combined cloth machine scheme; and determining the cloth machine scheme according to the generated energy of all the combined cloth machine schemes.
Description
Technical Field
The application relates to the field of wind power plants, in particular to a machine distribution method and device of a wind power plant.
Background
The microscopic site selection of a wind farm (such as an offshore wind farm) often adopts fully regular quincuncial pile type arrangement, the diagonal length and angle of a basic parallelogram need to be predefined, then initial reference points are selected, grid generation is performed according to predefined basic units, and then initial reference point adjustment is continuously performed, so that the number of wind turbine generators falling in an area surrounded by a boundary is equal to the total number of preset wind farm arrangement generators. The wind power generation sets are regularly arranged in rows and columns, the number of the wind power generation sets falling in the area surrounded by the boundary is required to be equal to the total number of the preset wind power plant arrangement sets, if the reference points are not required to be redefined, most of the arrangement schemes do not meet the requirements, and the arrangement efficiency is extremely low; the equidistant regularization method does not fully consider the problem of larger wind speed reduction of the front-row unit under the influence of wake effect; in addition, the above-mentioned mode needs to define the grid and produce the reference point in advance, carry on the optimization point location on this basis, even find the best arrangement mode, also only under this reference presumption, can only be limited to the local optimal solution.
Disclosure of Invention
The application provides a method and a device for arranging wind power plants.
Specifically, the application is realized by the following technical scheme:
the embodiment of the application provides a method for arranging a wind power plant, which comprises the following steps:
firstly, arranging the boundary of a target arranging region according to different spacing coefficients and preset wind generating set types to obtain boundary arranging schemes and boundary arranging machine numbers respectively corresponding to the different spacing coefficients;
determining the number of in-field cloth machines respectively corresponding to different spacing coefficients according to the preset total cloth machine number of the target cloth machine area and the number of boundary cloth machines respectively corresponding to the different spacing coefficients;
determining at least one in-field machine distribution boundary corresponding to the boundary interval according to at least one preset boundary interval and the boundary of the target machine distribution region, and updating the in-field machine distribution boundary according to different interval coefficients;
according to the number of the cloth machines in each field, the cloth machines are respectively carried out on the area surrounded by the boundary of each field, and at least one field cloth machine scheme corresponding to the number of the cloth machines in each field is obtained;
the method comprises the steps that each space coefficient is respectively arranged and combined with a boundary cloth machine scheme corresponding to the space coefficient and at least one field cloth machine scheme corresponding to the field cloth machine number corresponding to the space coefficient, so that a combined cloth machine scheme is obtained;
calculating the generated energy corresponding to each combined cloth machine scheme;
and determining the distribution scheme of the wind power plant according to the generated energy of all the combined distribution schemes.
Optionally, according to the number of the cloth machines in each field, the cloth machine is performed on the area surrounded by the boundary of the cloth machine in each field, so as to obtain at least one field cloth machine scheme corresponding to the number of the cloth machines in each field, including:
dividing the area surrounded by the boundary of the in-field cloth machine into grids according to the preset basic grid units to obtain grids of the area surrounded by the boundary of the in-field cloth machine corresponding to the number of the in-field cloth machines and the corresponding number of the cloth machines;
according to the number of the machines corresponding to the grids obtained each time, adjusting the parameter size of a basic grid unit of the grids, and re-conducting grid division on the area surrounded by the field machine distribution boundary according to the adjusted basic grid unit, so that the number of the machines in the area surrounded by the field machine distribution boundary is equal to the corresponding number of the machines in the field, and at least one field machine distribution scheme corresponding to each field machine distribution number is obtained;
wherein the basic grid unit is a regular quadrilateral, and the position of the basic grid unit is related to wind resources of the wind farm.
Optionally, the parameter includes a length of at least one diagonal line of the base grid unit and/or an angle of at least one diagonal line of the base grid unit, and the angle is an included angle between the diagonal line and a horizontal line.
Optionally, the adjusting comprises scaling a length of at least one diagonal of the base grid cell and/or rotating an angle of at least one diagonal of the base grid cell.
Optionally, the adjusting the parameter size of the basic grid unit of the grid according to the number of the cloth machines corresponding to the grid obtained each time, and re-performing grid division on the area surrounded by the field cloth machine boundary according to the adjusted basic grid unit, so that the number of the cloth machines of the area surrounded by the field cloth machine boundary is equal to the size of the number of the field cloth machines, and obtaining at least one field cloth machine scheme corresponding to the number of the field cloth machines, including:
when the number of the cloth machines corresponding to the grid obtained at present is larger than the number of the cloth machines in the field, sequentially increasing the length of at least one diagonal line of the basic grid unit according to a preset length gradient value, and re-meshing the area surrounded by the boundary of the field according to the basic grid unit after the length of the at least one diagonal line is sequentially increased, so that the absolute value of the difference value of the number of the cloth machines in the area surrounded by the boundary of the field minus the number of the cloth machines in the field is smaller than the preset number;
when the difference value of the number of the cloth machines in the area surrounded by the field cloth machine boundary minus the number of the field cloth machines is smaller than a preset number, sequentially changing the angle of at least one diagonal line of the basic grid unit according to a preset angle gradient value, and re-meshing the area surrounded by the field cloth machine boundary according to the sequentially changed angle of the at least one diagonal line so that the number of the cloth machines in the area surrounded by the field cloth machine boundary is equal to the number of the field cloth machines, and obtaining at least one field cloth machine proposal corresponding to the number of the field cloth machines.
Optionally, the positions of the foundation grid units are related to the number of main wind directions determined by wind resources of the wind farm, wherein the number of main wind directions is determined according to a wind speed rose obtained by wind resource analysis of the wind farm.
Optionally, when the number of main wind directions is 1, one wind generating set is distributed at each angle of the basic grid unit.
Optionally, when the number of the main wind directions is 2, one wind generating set is arranged at each corner of the basic grid unit, and one wind generating set is also arranged at the midpoint of two opposite sides respectively.
Optionally, according to different pitch coefficients and a predetermined model of the wind generating set, the laying is performed on a boundary of the target laying area, so as to obtain a boundary laying scheme and a boundary laying number respectively corresponding to the different pitch coefficients, including:
according to different spacing coefficients and the wind wheel diameter corresponding to the model of a preset wind generating set, determining the machine position spacing between two adjacent machine positions of the boundary of the target machine distribution area corresponding to the different spacing coefficients respectively;
and carrying out machine distribution on the boundary of the target machine distribution area according to the machine position intervals respectively corresponding to the interval coefficients to obtain a boundary machine distribution scheme and the boundary machine distribution number respectively corresponding to the interval coefficients.
Optionally, the pitch coefficient is greater than or equal to 4 and less than or equal to 10.
Optionally, the boundary pitch is greater than or equal to a minimum machine bit pitch.
Optionally, the determining the deployment scheme of the wind farm according to the generated energy of all the combined deployment schemes includes:
comparing the generated energy of all the combined cloth machine schemes;
and determining the distribution scheme of the wind power plant according to the combined distribution scheme with the maximum power generation amount.
Optionally, the calculating the power generation amount corresponding to each combined machine distribution scheme includes:
and calculating the generated energy corresponding to each combined distribution scheme by adopting a wake model.
Optionally, the wind farm is an offshore wind farm.
The embodiment of the application also provides a machine arranging device of the wind power plant, which comprises one or more processors and is used for realizing the machine arranging method of the wind power plant in any one of the embodiments.
The embodiment of the application further provides a computer readable storage medium, on which a program is stored, which when executed by a processor, implements the method for arranging wind farms according to any of the above embodiments.
According to the technical scheme provided by the embodiment of the application, when the wind power generation system is used for distributing, the boundary of the target distribution area is considered, different interval coefficients are adopted to distribute the boundary, boundary distribution schemes corresponding to the different interval coefficients are obtained, then in-field distribution is carried out, at least one in-field distribution scheme corresponding to the number of in-field distribution machines corresponding to the different interval coefficients is obtained, then the boundary distribution scheme and the at least one in-field distribution scheme under the same interval coefficient are arranged and combined to obtain a combined distribution scheme, finally, the distribution scheme of the wind power plant is determined according to the generated energy of all the combined distribution schemes, the whole target distribution area is reasonably and fully utilized as far as possible, the unit interval is enlarged, the wake effect is reduced, and the purpose of realizing the maximum generated energy is achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a flow chart of a method of commissioning a wind farm according to an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a positional relationship between a boundary of a target machine distribution area and an on-site machine distribution boundary according to an exemplary embodiment of the present application;
FIG. 3 is a schematic diagram of an implementation process of at least one in-field machine distribution scheme corresponding to the number of in-field machine distribution machines according to the number of in-field machine distribution machines in an exemplary embodiment of the present application, where the area surrounded by the boundary of each in-field machine distribution machine is respectively subjected to machine distribution;
FIG. 4A is a wind speed rose diagram illustrating an exemplary embodiment of the present application;
FIG. 4B is a schematic diagram of an enlarged layout position of a basic grid cell according to an exemplary embodiment of the present application, where the number of main wind directions in the target layout area is 1;
FIG. 4C is a schematic diagram of a layout of another enlarged base grid cell according to an exemplary embodiment of the present application, suitable for a situation where the number of main wind directions in the target layout area is 2;
FIG. 4D is a diagram illustrating an area surrounded by an in-field machine distribution boundary after meshing according to an exemplary embodiment of the present application;
FIG. 5A is a schematic diagram of a machine point obtained by a conventional machine laying method for laying out a target machine area;
FIG. 5B is a schematic diagram of a machine site obtained by laying a target laying area by adopting a laying method of a wind farm according to an embodiment of the application;
fig. 6 is a schematic structural diagram of a cloth machine device of a wind farm according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
The following describes the method and device for arranging the wind power plant in detail with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.
FIG. 1 is a flow chart of a method of commissioning a wind farm according to an exemplary embodiment of the present disclosure; the method for arranging the wind power plant can be applied to any equipment with data processing capability, such as a computer. As shown in fig. 1, a method for arranging wind power plants according to an embodiment of the present application may include steps S11 to S17.
In S11, according to different pitch coefficients and a predetermined model of the wind turbine generator system, the boundary of the target machine distribution area is first distributed, so as to obtain a boundary machine distribution scheme and a boundary machine distribution number respectively corresponding to the different pitch coefficients.
Step S11 may be referred to as a border cloth machine.
The predetermined model of the wind generating set is the model of the wind generating set for performing the machine laying in the target machine laying area, and it is understood that the model is determined, the size of the diameter of the wind wheel of the wind generating set is determined, and the power of the wind generating set is also determined.
It should be noted that, in the embodiment of the present application, the target machine distribution area is a closed area.
According to different pitch coefficients and a preset model of the wind generating set, the boundary of the target machine distribution area is distributed to obtain a boundary machine distribution scheme and a boundary machine distribution number which respectively correspond to the different pitch coefficients, and the method can comprise the following two steps:
(1) According to different spacing coefficients and the wind wheel diameter corresponding to the model of the preset wind generating set, determining the machine position spacing between two adjacent machine positions of the boundary of the target machine distribution area corresponding to the different spacing coefficients respectively;
optionally, the pitch of the machine position corresponding to the pitch coefficient is the product of the pitch coefficient and the diameter of the wind wheel.
(2) And carrying out machine distribution on the boundary of the target machine distribution area according to the machine position intervals respectively corresponding to the different interval coefficients to obtain a boundary machine distribution scheme and the boundary machine distribution number respectively corresponding to the different interval coefficients.
In the embodiment of the application, the machine location point in the boundary machine distribution scheme is close to the boundary of the target machine distribution area.
For example, the pitch coefficient includes two machine positions, the distance between the machine positions corresponding to S1 and S2 is D1, the distance between the machine positions corresponding to S2 is D2, and when the boundary of the target machine distribution area is distributed, the distance between two adjacent machine positions of the boundary of the target machine distribution area is set to be D1, so that a boundary machine distribution scheme P11 corresponding to S1 and the boundary machine distribution number N1 are obtained; and setting the distance between two adjacent machine positions of the boundary of the target machine distribution area as D2, and obtaining a boundary machine distribution scheme P12 and a boundary machine distribution number N2 corresponding to S2.
The size of the pitch coefficient may be set as needed, and in consideration of the influence of wake effects on power generation, the pitch coefficient is optionally greater than or equal to 4 and less than or equal to 10. Illustratively, the size of the spacing coefficient may be set to at least two of 4, 5, 6, 7, 8, 9, and 10; of course, the pitch coefficient may also be set to a non-integer magnitude greater than 4 and less than 10.
In S12, according to the total number of cloth machines in the preset target cloth machine area and the boundary number of cloth machines corresponding to different pitch coefficients, determining the field number of cloth machines corresponding to different pitch coefficients.
Assuming that the total number of machines in the target machine distribution area is N, it should be understood that N is preset.
Along the boundary cloth machine scheme P11, the boundary cloth machine number N1 and the field cloth machine number M1 corresponding to the S1 in the embodiment; the calculation formulas of the boundary cloth machine scheme P12, the boundary cloth machine number N2 and the field cloth machine numbers M2, M1 and M2 corresponding to the S2 are as follows:
m1 and M2 wind power generator sets are required to be respectively distributed in the field.
In S13, according to the preset at least one boundary interval and the boundary of the target machine distribution area, determining the in-field machine distribution boundary corresponding to the at least one boundary interval, and updating the in-field machine distribution boundary according to different interval coefficients.
For convenience of description, the boundary of the target deployment area is referred to as an initial boundary. The in-field machine distribution boundary is a boundary obtained by reducing the boundary interval from the periphery of the initial boundary to the inside of the target machine distribution region.
As shown in fig. 2, the boundary distance d is reduced from the periphery of the initial boundary 10 to the inside of the target machine distribution region, and then the in-field machine distribution boundary 20 is obtained.
It should be understood that if 1 boundary interval is preset, the boundary of the in-field machine is also 1; if a plurality of boundary distances are preset, the number of the in-field machine distribution boundaries is also a plurality, namely the number of the in-field machine distribution boundaries is equal to the number of the preset boundary distances. It should be noted that, in the embodiment of the present application, the area surrounded by the boundary of the in-field spreader is a closed area.
The boundary distance may be set according to the need, and in consideration of the influence of wake effect on power generation, the boundary distance may be optionally greater than or equal to the minimum pitch of the plurality of pitches determined in the step (1). Illustratively, the boundary pitch is greater than or equal to the product of the minimum pitch coefficient employed in step S11 and the rotor diameter.
The in-field layout boundary is updated according to different pitch coefficients to correspond the different pitch coefficients to the in-field layout boundary corresponding to at least one boundary pitch, for example, the in-field layout boundary comprises 4 pitch coefficients and 8 in-field layout boundaries, and each pitch coefficient corresponds to the 8 in-field layout boundaries respectively to form 4*8 layout scheme combinations.
In S14, according to the number of the machine sets in each field, the machine sets are respectively performed on the area surrounded by the boundary of each field, so as to obtain at least one field machine setting scheme corresponding to the number of the machine sets in each field.
In step S14, the number of wind turbine generators per site determined in step S12 needs to be distributed to the area surrounded by the boundary of each site distribution machine obtained in step S13, and step S14 may be referred to as site distribution machine.
Fig. 3 is a schematic implementation process of at least one in-field machine arrangement scheme corresponding to the number of in-field machines according to the number of in-field machines, where the implementation process of at least one in-field machine arrangement scheme corresponding to the number of in-field machines according to the number of in-field machines is shown in an exemplary embodiment of the present application, and the implementation process of at least one in-field machine arrangement scheme corresponding to the number of in-field machines according to the number of in-field machines, where the in-field machines are shown in the exemplary embodiment of the present application includes steps S31-S32:
s31, dividing the area surrounded by the boundary of the in-field cloth machine into grids according to the preset basic grid unit to obtain grids of the area surrounded by the boundary of the in-field cloth machine corresponding to the number of the in-field cloth machines and the corresponding number of the cloth machines;
wherein the basic grid unit is a regular quadrilateral, and the position of the basic grid unit is related to wind resources of the wind power plant.
The regular tetragon may comprise at least one of a rectangle, square and parallelogram.
In the embodiment of the application, the distribution positions of the basic grid units are related to the number of main wind directions determined by wind resources of the wind power plant, wherein the number of the main wind directions is determined according to a wind speed rose obtained by wind resource analysis of the wind power plant. The wind speed rose diagram determination and the main wind direction number determination according to the wind speed rose diagram can all adopt the existing mode, and the method is not described in the application.
As shown in fig. 4A, the number of main wind directions is 1, and the main wind directions are along the northeast direction.
As shown in fig. 4B, when the number of main wind directions is 1, one wind generating set is disposed at each angle of the base grid unit 30, and each black dot in fig. 4B is a position of the wind generating set, and the base grid unit 30 is disposed in a 2×2 manner.
As shown in fig. 4C, when the number of main wind directions is 2, one wind generating set is disposed at each corner of the base grid unit 30, and one wind generating set is also disposed at the midpoint of two opposite sides, and each black dot in fig. 4C is a layout, and the base grid unit 30 is in a 2*3 layout mode.
As shown in fig. 4D, the area surrounded by the intra-field machine distribution boundary 20 is grid-divided according to the base grid unit 30, so as to obtain the grid of the area surrounded by the intra-field machine distribution boundary and the number of machine distribution units corresponding to the grid, and the machine distribution positions are not shown in fig. 4D, and it is noted that only one wind power generator set is distributed at the overlapping angle of the adjacent base grid units 30.
Along the above embodiment, the regions surrounded by the in-field machine distribution boundaries are respectively grid-divided according to the preset basic grid units by using the M1 and the M2, so as to obtain the grids of the regions surrounded by the in-field machine distribution boundaries corresponding to each M1 and the number of machine distribution machines M11 corresponding to the grids, and obtain the grids of the regions surrounded by the in-field machine distribution boundaries corresponding to each M2 and the number of machine distribution machines M21 corresponding to the grids.
S32, adjusting the parameter size of the basic grid unit of the grid according to the number of the cloth machines corresponding to the grid obtained each time, and re-conducting grid division on the area surrounded by the field cloth machine boundary according to the adjusted basic grid unit, so that the number of the cloth machines of the area surrounded by the field cloth machine boundary is equal to the corresponding number of the field cloth machines, and at least one field cloth machine scheme corresponding to each field cloth machine number is obtained.
The number of the machines of the grid obtained in step S31 is not necessarily equal to the number of machines of the grid in the field, and illustratively, the sizes of M11 and M1 are not necessarily equal, the sizes of M21 and M2 are not necessarily equal, and the area surrounded by the boundary of the machines of the grid in the field needs to be re-grid-divided, so that the sizes of M11 and M1 are equal finally, and the sizes of M21 and M2 are equal finally.
In this embodiment of the present application, the parameters of the base grid unit may include a length of at least one diagonal line of the base grid unit and/or an angle of at least one diagonal line of the base grid unit, where the angle of the diagonal line refers to an included angle between the diagonal line and a horizontal line. As shown in fig. 4B and 4C, the base grid unit 30 includes two first diagonal lines 31 and second diagonal lines 32, the first diagonal line 31 has an angle α with the horizontal line, the second diagonal line 32 has an angle β with the horizontal line, and in some embodiments, the length of the first diagonal line 31 and the length of the second diagonal line 32 may be adjusted; in some embodiments, the length of the first diagonal 31 is in a preset multiple relationship with the length of the second diagonal 32, and thus, only one of the length of the first diagonal 31 and the length of the second diagonal 32 may be adjusted; in some embodiments, the alpha and beta sizes may be adjusted. In this embodiment of the present application, the length of the first diagonal line 31, the length of the second diagonal line 32, and the sizes of α and β are adjusted, so that the number of machine distribution facilities in each field can respectively obtain a plurality of machine distribution schemes in the field.
For convenience of description, the corresponding number of in-field cloth machines will be hereinafter referred to as the target number of in-field cloth machines.
The adjusting in the embodiment of the application may include scaling the length of at least one diagonal of the base grid cell and/or changing the size of the angle between two diagonals of the base grid cell and the horizontal line, respectively. Specifically, when the number of the cloth machines corresponding to the grid obtained at the present time is smaller than the number of the cloth machines in the target field, reducing the length of at least one diagonal line of the basic grid unit and/or changing the size of the included angle between two diagonal lines of the basic grid unit and the horizontal line respectively; when the number of the cloth machines corresponding to the grids obtained at the current time is larger than the number of the cloth machines in the target field, the length of at least one diagonal line of the basic grid unit and/or the angle of at least one diagonal line of the rotary basic grid unit are increased.
When the plurality of parameters are included, the sizes of the plurality of parameters may be adjusted at the same time, and the adjustment of the sizes of the plurality of parameters may not be synchronized.
In order to avoid invalid calculation, the preset basic grid units in step S31 will be generally smaller, the grids obtained by dividing in step S31 will be denser, and the number of machine distribution units will be larger than the corresponding number of machine distribution units in the field, so that the machine distribution efficiency is greatly improved by adjusting the parameter size of the basic grid units of the grids, then re-dividing the grids in the area surrounded by the machine distribution boundary in the field according to the adjusted basic grid units, gradually reducing the density of the re-divided grids, and gradually reducing the number of machine distribution units. Specifically, step S32 may include, but is not limited to, the following two steps:
(1) When the number of the cloth machines corresponding to the current obtained grid is larger than the number of the cloth machines in the field, sequentially increasing the length of at least one diagonal line of the basic grid unit according to a preset length gradient value, and re-meshing the area surrounded by the boundary of the field according to the basic grid unit after the length of the at least one diagonal line is sequentially increased, so that the absolute value of the difference value of the number of the cloth machines in the field subtracted by the number of the cloth machines in the field of the area surrounded by the boundary of the field is smaller than the preset number;
(2) When the difference value of the number of the cloth machines in the area surrounded by the field cloth machine boundary minus the number of the field cloth machines is smaller than the preset number, sequentially changing the angle of at least one diagonal line of the basic grid unit according to the preset angle gradient value, and re-meshing the area surrounded by the field cloth machine boundary according to the basic grid unit after sequentially changing the angle of at least one diagonal line of the basic grid unit, so that the number of the cloth machines in the area surrounded by the field cloth machine boundary is equal to the number of the field cloth machines, and at least one field cloth machine proposal corresponding to the number of the field cloth machines is obtained.
In this way, when the number of cloth machines corresponding to the current obtained grid is larger than the number of cloth machines in the target field and the difference is larger, the length of at least one diagonal line of the basic grid unit is gradually reduced, so that the number of cloth machines in the area surrounded by the field cloth machine boundary obtained by re-grid division can be relatively fast approximate to the number of cloth machines in the target field, and the cloth machine efficiency is improved; when the difference of the number of the cloth machines in the area surrounded by the in-field cloth machine boundary minus the number of the cloth machines in the field is smaller than the preset number, the difference of the number of the cloth machines in the area surrounded by the in-field cloth machine boundary and the number of the cloth machines in the target field is smaller, at this time, the number of the cloth machines in the area surrounded by the in-field cloth machine boundary obtained by re-grid division can be precisely controlled to the number of the cloth machines in the target field by changing the angle of at least one diagonal line of the basic grid unit, the number of times of invalid cloth machines is reduced, and the cloth machine efficiency is further improved.
When the number of the same field cloth machine corresponds to a plurality of field cloth machine schemes, the basic grid units of the plurality of field cloth machine schemes corresponding to the number of the same field cloth machine are different. It should be noted that the plurality of base grid cells are different means that the plurality of base grid cells have at least one parameter with different sizes.
The length gradient value, the preset number of the length gradient values and the angle gradient values can be set according to the requirements so as to meet different efficiency requirements.
In S15, for each pitch coefficient, the boundary machine arrangement scheme corresponding to the pitch coefficient and at least one in-field machine arrangement scheme corresponding to the number of in-field machine arrangements corresponding to the pitch coefficient are respectively arranged and combined to obtain a combined machine arrangement scheme.
For example, along the boundary spreader scheme P11, the in-field spreader schemes P21 and P22 corresponding to S1, and the in-field spreader schemes P23, P24 and P25 corresponding to S2 in the above embodiment, the combined spreader schemes obtained after the arrangement and combination include 5 kinds of schemes, which are respectively: { P11, P21}, { P11, P22}, { P12, P23}, { P12, P24} and { P12, P25}.
In S16, the power generation amount corresponding to each combination power distribution scheme is calculated.
Optionally, calculating the generated energy corresponding to each combined distribution scheme by adopting a wake model. Of course, other power generation amount calculation modes can be adopted to calculate the power generation amount corresponding to each combined power distribution scheme.
In S17, a wind farm deployment scenario is determined from the power generation of all the combined deployment scenarios.
Specifically, comparing the power generation amounts of all the combined cloth machine schemes; and determining the distribution scheme of the wind power plant according to the combined distribution scheme with the maximum power generation amount. For example, in some embodiments, the combined scheduling scheme with the largest power generation amount is used as a scheduling scheme of the wind power plant, so that the power generation amount of the target scheduling area is greatly improved; in other embodiments, part of the positions in the combined layout scheme with the largest power generation amount are adjusted (for example, some positions actually have barriers or are not suitable for being used as the layout positions due to geographical factors, and the like, so that the obtained combined layout scheme is used as the layout scheme of the wind power plant.
The wind farm of the embodiment of the application can be an offshore wind farm; of course, an onshore wind farm is also possible.
FIG. 5A is a schematic diagram of a machine point obtained by a conventional machine laying method for laying out a target machine area; fig. 5B is a schematic diagram of a machine site obtained by laying a target laying area by using the laying method of the wind farm according to the embodiment of the application. As can be seen from fig. 5A and fig. 5B, compared with the conventional machine arranging method, the machine arranging method in the embodiment of the present application makes full use of the initial boundary, so as to achieve the purposes of reasonably and fully utilizing the whole target machine arranging area as much as possible, increasing the unit distance, reducing the wake effect, and improving the power generation capacity. In addition, table 1 is a table of comparison of the power generation amount data of the conventional machine laying method and the machine laying method of the present application.
TABLE 1
| Traditional cloth machine method | Machine laying method of the application | |
| Generating capacity (GWh) | 1832.03 | 1869.20 |
| Capacity system | 52.28％ | 53.60％ |
| Wake break | 6.31％ | 4.724％ |
As can be seen from Table 1, compared with the traditional machine arranging method, the machine arranging method in the embodiment of the application has the advantages that the generated energy is improved to 2%, and the generated energy improving effect is obvious; the wake flow is low in breakage, so that the machine position layout adopted by the machine distribution method is reasonable, the wake flow is small, and the generated energy is large.
According to the method for arranging the wind power plant, the boundary of the target arranging area is considered during arranging, firstly, different interval coefficients are adopted for arranging the boundary, boundary arranging schemes corresponding to the different interval coefficients are obtained, then in-field arranging is carried out, at least one in-field arranging scheme corresponding to the number of in-field arranging machines corresponding to the different interval coefficients is obtained, then the boundary arranging scheme and the at least one in-field arranging scheme under the same interval coefficient are arranged and combined to obtain a combined arranging scheme, finally, the arranging scheme of the wind power plant is determined according to the generated energy of all the combined arranging schemes, the whole target arranging area is reasonably and fully utilized as far as possible, the unit interval is enlarged, and the purpose of achieving the maximum generated energy is achieved.
Corresponding to the embodiment of the method for arranging the wind power plant, the application also provides an embodiment of the device for arranging the wind power plant.
Referring to fig. 6, an embodiment of the present application further provides a deployment device of a wind farm, including one or more processors, configured to implement the deployment method of the wind farm in the foregoing embodiment.
The implementation process of the functions and roles of each unit in the above device is specifically shown in the implementation process of the corresponding steps in the above method, and will not be described herein again.
The embodiment of the cloth machine device of the wind power plant can be applied to any equipment with data processing capability. The apparatus embodiments may be implemented by software, or may be implemented by hardware or a combination of hardware and software. Taking software implementation as an example, the device in a logic sense is formed by reading corresponding computer program instructions in a nonvolatile memory into a memory by a processor of any device with data processing capability. In terms of hardware, as shown in fig. 6, a hardware structure diagram of an apparatus with any data processing capability where a device arrangement device of a wind farm of the present application is located is shown in fig. 6, and in addition to a processor, a memory, a network interface, and a nonvolatile memory shown in fig. 6, the apparatus with any data processing capability where the device arrangement device is located in an embodiment generally includes other hardware according to an actual function of the apparatus with any data processing capability, which is not described herein again.
For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purposes of the present application. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
The embodiment of the application also provides a computer readable storage medium, on which a program is stored, which when executed by a processor, implements the method for arranging wind farms in the embodiment.
The computer readable storage medium may be an internal storage unit, such as a hard disk or a memory, of any of the data processing enabled devices described in any of the previous embodiments. The computer readable storage medium may be any external storage device that has data processing capability, such as a plug-in hard disk, a Smart Media Card (SMC), an SD Card, a Flash memory Card (Flash Card), or the like, which are provided on the device. Further, the computer readable storage medium may include both internal storage units and external storage devices of any data processing device. The computer readable storage medium is used for storing the computer program and other programs and data required by the arbitrary data processing apparatus, and may also be used for temporarily storing data that has been output or is to be output.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (16)
1. A method of arranging a wind farm, the method comprising:
firstly, arranging the boundary of a target arranging region according to different spacing coefficients and preset wind generating set types to obtain boundary arranging schemes and boundary arranging machine numbers respectively corresponding to the different spacing coefficients;
determining the number of in-field cloth machines respectively corresponding to different spacing coefficients according to the preset total cloth machine number of the target cloth machine area and the number of boundary cloth machines respectively corresponding to the different spacing coefficients;
determining at least one in-field machine distribution boundary corresponding to the boundary interval according to at least one preset boundary interval and the boundary of the target machine distribution region, and updating the in-field machine distribution boundary according to different interval coefficients;
according to the number of the cloth machines in each field, the cloth machines are respectively carried out on the area surrounded by the boundary of each field, and at least one field cloth machine scheme corresponding to the number of the cloth machines in each field is obtained;
the method comprises the steps that each space coefficient is respectively arranged and combined with a boundary cloth machine scheme corresponding to the space coefficient and at least one field cloth machine scheme corresponding to the field cloth machine number corresponding to the space coefficient, so that a combined cloth machine scheme is obtained;
calculating the generated energy corresponding to each combined cloth machine scheme;
determining a distribution scheme of the wind power plant according to the generated energy of all the combined distribution schemes;
according to the number of the cloth machines in each field, the cloth machine is carried out on the area surrounded by the boundary of the cloth machine in each field, at least one field cloth machine scheme corresponding to the number of the cloth machines in each field is obtained, and the method comprises the following steps:
dividing the area surrounded by the boundary of the in-field cloth machine into grids according to the preset basic grid units to obtain grids of the area surrounded by the boundary of the in-field cloth machine corresponding to the number of the in-field cloth machines and the corresponding number of the cloth machines;
and adjusting the parameter size of the basic grid unit of the grid according to the number of the cloth machines corresponding to the grid obtained each time, and re-conducting grid division on the area surrounded by the field cloth machine boundary according to the adjusted basic grid unit, so that the number of the cloth machines of the area surrounded by the field cloth machine boundary is equal to the corresponding number of the field cloth machines, and at least one field cloth machine scheme corresponding to each field cloth machine number is obtained.
2. The method of claim 1, wherein the base grid cells are regular quadrilaterals and the placement of the base grid cells is related to wind resources of the wind farm.
3. A method of laying out a wind farm according to claim 2, wherein the parameters comprise the length of at least one diagonal of the base grid unit and/or the angle of at least one diagonal of the base grid unit, the angle being the amount of the angle of the diagonal to the horizontal.
4. A method of laying out a wind farm according to claim 3, wherein the adjustment comprises scaling the length of at least one diagonal of the base grid cell and/or rotating the angle of at least one diagonal of the base grid cell.
5. The method for arranging machines in a wind farm according to claim 4, wherein the step of adjusting the parameter size of the basic grid unit of the grid according to the number of machines corresponding to the grid obtained each time, and re-dividing the area surrounded by the boundary of the machine in the farm according to the adjusted basic grid unit, so that the number of machines in the area surrounded by the boundary of the machine in the farm is equal to the number of machines in the farm, and obtaining at least one machine arrangement scheme corresponding to the number of machines in the machine in the farm includes:
when the number of the cloth machines corresponding to the grid is larger than the number of the field cloth machines, sequentially increasing the length of at least one diagonal line of the basic grid unit according to a preset length gradient value, and re-conducting grid division on the area surrounded by the field cloth machine boundary according to the basic grid unit after the length of the at least one diagonal line is sequentially increased, so that the absolute value of the difference value of the number of the cloth machines of the area surrounded by the field cloth machine boundary minus the number of the field cloth machines is smaller than the preset number;
when the difference value of the number of the cloth machines in the area surrounded by the field cloth machine boundary minus the number of the field cloth machines is smaller than a preset number, sequentially changing the angle of at least one diagonal line of the basic grid unit according to a preset angle gradient value, and re-meshing the area surrounded by the field cloth machine boundary according to the sequentially changed angle of the at least one diagonal line so that the number of the cloth machines in the area surrounded by the field cloth machine boundary is equal to the number of the field cloth machines, and obtaining at least one field cloth machine proposal corresponding to the number of the field cloth machines.
6. The method for arranging wind power plants according to claim 2, wherein the positions of the basic grid cells are related to the number of main wind directions determined by wind resources of the wind power plants, wherein the number of main wind directions is determined according to a wind speed rose obtained by wind resource analysis of the wind power plants.
7. The method for arranging wind farms according to claim 6, wherein when the number of main wind directions is 1, one wind generating set is arranged for each angle of the basic grid cells.
8. The wind farm distribution method according to claim 6, wherein when the number of main wind directions is 2, one wind power generator set is distributed for each corner of the basic grid unit, and wherein one wind power generator set is also distributed at the midpoint of two opposite sides, respectively.
9. The method for arranging the wind farm according to claim 1, wherein the arranging the boundary of the target arranging area according to different pitch coefficients and a predetermined model of the wind generating set to obtain a boundary arranging scheme and a boundary arranging number respectively corresponding to the different pitch coefficients comprises:
according to different spacing coefficients and the wind wheel diameter corresponding to the model of a preset wind generating set, determining the machine position spacing between two adjacent machine positions of the boundary of the target machine distribution area corresponding to the different spacing coefficients respectively;
and carrying out machine distribution on the boundary of the target machine distribution area according to the machine position intervals respectively corresponding to the interval coefficients to obtain a boundary machine distribution scheme and the boundary machine distribution number respectively corresponding to the interval coefficients.
10. A method of laying out a wind farm according to claim 9, wherein the pitch coefficient is greater than or equal to 4 and less than or equal to 10.
11. The method of claim 9, wherein the boundary pitch is greater than or equal to a minimum machine pitch.
12. The method for arranging wind power plants according to claim 1, wherein the determining the arrangement scheme of the wind power plants according to the generated power of all combined arrangement schemes comprises:
comparing the generated energy of all the combined cloth machine schemes;
and determining the distribution scheme of the wind power plant according to the combined distribution scheme with the maximum power generation amount.
13. The method for arranging wind farm according to claim 1, wherein calculating the power generation amount corresponding to each combined arrangement scheme comprises:
and calculating the generated energy corresponding to each combined distribution scheme by adopting a wake model.
14. The method of claim 1, wherein the wind farm is an offshore wind farm.
15. A wind farm deployment device comprising one or more processors configured to implement the wind farm deployment method of any of claims 1-14.
16. A computer readable storage medium, having stored thereon a program which, when executed by a processor, implements the method of laying out a wind farm according to any of claims 1-14.
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| WO2018072843A1 (en) * | 2016-10-21 | 2018-04-26 | Abb Schweiz Ag | A method of providing power support to an electrical power grid |
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