CN113487090A

CN113487090A - Method, device and equipment for arranging machine positions of offshore wind power plant

Info

Publication number: CN113487090A
Application number: CN202110768811.6A
Authority: CN
Inventors: 蔡彦枫; 周川; 王俊; 张灿亨; 汪华安; 曾伟雄; 陈涛; 王鹏; 李健华; 黄穗; 李争霖; 王洁
Original assignee: Guangdong Kenuo Surveying Engineering Co ltd
Current assignee: Guangdong Kenuo Surveying Engineering Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-10-08
Anticipated expiration: 2041-07-07
Also published as: CN113487090B

Abstract

The invention relates to a method, a device and equipment for arranging machine positions of an offshore wind power plant, wherein a first machine position arrangement mode with the highest power generation power is obtained by obtaining a site boundary, a boundary restrictive region, an internal restricted region and the number of machine positions to be arranged of the offshore wind power plant according to a preset first machine position arrangement strategy, a second machine position arrangement strategy, an invalid machine position removing algorithm and a power generation power calculation algorithm, and a plurality of second machine position arrangement modes are obtained according to a preset machine position interval adjusting strategy; and finally, obtaining a target machine position arrangement mode with the highest power generation power from the plurality of second machine position arrangement modes according to a preset power generation power calculation algorithm. Compared with the prior art, the invention can efficiently arrange the machine positions aiming at various offshore wind power plants with complex boundaries, effectively utilize the space in the site and improve the generating power of the wind power plants after the machine positions are arranged.

Description

Method, device and equipment for arranging machine positions of offshore wind power plant

Technical Field

The invention relates to the technical field of offshore wind power generation, in particular to a method, a device and equipment for arranging machine positions of an offshore wind power generation field

Background

In offshore wind power plant engineering, how to arrange the machine positions of wind power generation is a very important link, and the arrangement mode that the machine positions cannot be left in each subsequent link such as electrical design, civil engineering, construction organization, transportation, environmental protection and the like is used as an input condition. In addition, in the operation stage, the formulation of the machine position yaw and other control strategies also needs to be adapted to the arrangement mode of the full-field machine position.

The advantages and disadvantages of the machine position arrangement mode are directly reflected in the height of the generated energy of each machine position, and finally the whole-field generating efficiency and the machine position safety of the offshore wind power plant are determined. At present, in an offshore wind farm, the arrangement of machine positions is as follows: 1. the wind direction is vertical to the main wind direction of the wind power plant, and the machine positions are staggered back and forth to form a plum blossom shape; 2. the row spacing horizontal to the main wind direction is not less than 7 times of the diameter of the impeller, and the column spacing vertical to the main wind direction is not less than 3-5 times of the diameter of the impeller; 3. the power generation loss of a single machine position caused by wake effect is not more than 15%.

However, the above-mentioned machine position arrangement mode has poor adaptability, and is difficult to be applied to an offshore wind farm with a complex boundary, which not only affects the utilization rate of the site space, but also has the technical problems of low power generation of the offshore wind farm and low machine position arrangement adjustment efficiency.

Disclosure of Invention

Based on the above, the invention provides a method, a device and equipment for arranging machine positions of an offshore wind farm, which can efficiently arrange the machine positions of various offshore wind farms with complex boundaries, effectively utilize the space in a site and improve the generated power of the offshore wind farm after the machine positions are arranged, and the technical scheme is as follows:

in a first aspect, an embodiment of the present application provides a method for arranging machine positions of an offshore wind farm, including the following steps:

s1: acquiring site boundaries, boundary restrictive regions, internal restrictive regions and the number of positions of machines to be arranged of the offshore wind power plant; the outer boundary of the boundary limiting region is the field address boundary, the inner boundary of the boundary limiting region is a boundary obtained by extending a preset limiting width inwards from the outer boundary, the inner limiting region is a sub-region in a region within the inner boundary, and the machine positions to be arranged comprise edge machine positions and inner machine positions;

s2: arranging N on the inner boundary according to a preset first machine position arrangement strategy_bArranging a plurality of candidate internal machine positions in an area within the field address boundary according to a preset second machine position arrangement strategy;

s3: according to a preset invalid machine position removing algorithm, removing invalid machine positions in the arranged candidate internal machine positions to obtain N arranged in an area within the field address boundary_aAn internal machine location; wherein the number of the machine positions to be arranged is the number N of the edge machine positions_bAnd the number of internal machine positions N_aSumming;

s4: keeping the number of the machine positions to be arranged unchanged, and adjusting the number N of the edge machine positions_bAnd the number of internal machine positions N_aRepeating the steps S2-S3 to obtain a plurality of first machine position arrangement modes; the machine position arrangement mode comprises the position of each edge machine position in a field address and the position of each internal machine position in the field address;

s5: according to a preset power generation calculation algorithm, obtaining a first machine position arrangement mode with the highest power generation power from a plurality of machine position arrangement modes;

s6: adjusting the position of each internal machine position in the first machine position arrangement mode with the highest power generation power according to a preset machine position distance adjustment strategy to obtain a plurality of second machine position arrangement modes;

s7: and obtaining a target machine position arrangement mode with the highest power generation power from the plurality of second machine position arrangement modes according to a preset power generation power calculation algorithm.

In a second aspect, an embodiment of the present application provides a machine position arrangement apparatus for an offshore wind farm, including:

the wind power plant site constraint condition module is used for acquiring a site boundary, a boundary limiting area, an internal limiting area and the number of machine positions to be arranged of the offshore wind power plant; the outer boundary of the boundary limiting region is the field address boundary, the inner boundary of the boundary limiting region is a boundary obtained by extending a preset limiting width inwards from the outer boundary, the inner limiting region is a sub-region in a region within the inner boundary, and the machine positions to be arranged comprise edge machine positions and inner machine positions;

an edge machine position generating module for arranging N on the inner boundary according to a preset first machine position arrangement strategy_bArranging a plurality of candidate internal machine positions in an area within the field address boundary according to a preset second machine position arrangement strategy;

an internal machine position generating module for removing the arranged invalid machine position according to a preset invalid machine position removing algorithmObtaining N arranged in the area within the field boundary_aAn internal machine location; wherein the number of the machine positions to be arranged is the number N of the edge machine positions_bAnd the number of internal machine positions N_aSumming;

a repeated obtaining module for keeping the number of the machine positions to be arranged unchanged and adjusting the number N of the edge machine positions_bAnd the number of internal machine positions N_aRepeatedly calling the edge machine position generating module and the internal machine position generating module to obtain a plurality of first machine position arrangement modes; the machine position arrangement mode comprises the position of each edge machine position in a field address and the position of each internal machine position in the field address;

the first generating power calculating module is used for acquiring a first machine position arrangement mode with the highest generating power from a plurality of machine position arrangement modes according to a preset generating power calculating algorithm;

the internal machine position interval adjusting module is used for adjusting the position of each internal machine position in the first machine position arrangement mode with the highest power generation power according to a preset machine position interval adjusting strategy to obtain a plurality of second machine position arrangement modes;

and the second generating power calculating module is used for obtaining a target machine position arrangement mode with the highest generating power from a plurality of second machine position arrangement modes according to a preset generating power calculating algorithm.

In a third aspect, embodiments of the present application provide a position arrangement apparatus for an offshore wind farm, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the steps of the position arrangement method for an offshore wind farm according to the first aspect.

In the embodiment of the application, by acquiring site boundaries, boundary restrictive regions, internal restrictive regions and the number of the machine positions to be arranged of the offshore wind farm, and according to a preset first machine position arrangement strategy, a preset second machine position arrangement strategy and an invalid machine position removal algorithm, the number of the machine positions to be arranged is kept unchanged, the number of the edge machine positions and the number of the internal machine positions are adjusted, and a plurality of first machine position arrangement modes are obtained; then according to a preset generating power calculation algorithm, obtaining a first machine position arrangement mode with the highest generating power from a plurality of machine position arrangement modes, and according to a preset machine position interval adjustment strategy, adjusting the position of each internal machine position in the first machine position arrangement mode with the highest generating power to obtain a plurality of second machine position arrangement modes; and finally, obtaining a target machine position arrangement mode with the highest power generation power from the plurality of second machine position arrangement modes according to a preset power generation power calculation algorithm. According to the method and the device, the site space of the offshore wind farm can be fully utilized, the boundary limiting area and the internal limiting area of the offshore wind farm are divided according to the site boundary which is not regular in the offshore wind farm, the edge machine positions and the internal machine positions are reasonably arranged in the site space, a plurality of first machine position arrangement modes are obtained by continuously adjusting the number of the edge machine positions and the number of the internal machine positions, then the positions of all the internal machine positions in the first machine position arrangement mode with the highest power generation power are adjusted according to the preset machine position interval adjustment strategy, a plurality of second machine position arrangement modes are obtained, the target machine position arrangement mode with the highest power generation power is obtained, and the power generation power of the offshore wind farm and the arrangement efficiency of the offshore wind farm machine positions are greatly improved.

Drawings

FIG. 1 is a schematic flow chart of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application;

FIG. 2 is a schematic flow chart of step S1 of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application;

FIG. 3 is a schematic flow chart of step S2 of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating rotation of coordinate axes according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a planar diagonal coordinate system provided in accordance with an embodiment of the present application;

FIG. 6 is a schematic flow chart of step S3 of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application;

FIG. 7 is a schematic flow chart of step S5 of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application;

FIG. 8 is a schematic flow chart of step S6 of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application;

FIG. 9 is a schematic flow chart of a process S601 in a method for arranging stands of an offshore wind farm according to an embodiment of the present application;

FIG. 10 is a schematic diagram of coordinate axis transformation provided in one embodiment of the present application;

FIG. 11 is a schematic illustration of a configuration of a stand arrangement for an offshore wind farm according to an embodiment of the present application;

FIG. 12 is a schematic illustration of a configuration of a park arrangement of an offshore wind farm according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the 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 and all possible combinations of one or more of the associated listed items.

It is to be understood that, although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present application. The word "if/if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Referring to fig. 1, fig. 1 is a schematic flow chart of a method for arranging a stand of an offshore wind farm according to an embodiment of the present application, where the method includes the following steps:

s1: acquiring site boundaries, boundary restrictive regions, internal restrictive regions and the number of positions of machines to be arranged of the offshore wind power plant; the outer boundary of the boundary limiting region is the site boundary, the inner boundary of the boundary limiting region is the boundary obtained by the inward extension of the outer boundary and the preset limiting width, the inner limiting region is the sub-region in the region within the inner boundary, and the machine positions to be arranged comprise edge machine positions and inner machine positions.

The execution main body of the machine position arrangement method of the offshore wind farm is machine position arrangement equipment (hereinafter referred to as arrangement equipment) of the offshore wind farm.

The method comprises the steps that configuration equipment firstly obtains site boundaries, boundary limiting areas, internal limiting areas and the number of machine positions to be arranged of the offshore wind power plant.

The site boundary refers to the boundary of the offshore wind power plant for operation.

The outer boundary of the boundary limiting region is the field address boundary, the inner boundary of the boundary limiting region is a boundary obtained by extending a preset limiting width inwards from the outer boundary, and the boundary limiting region is a region between the outer boundary and the inner boundary.

The internal restricted area is a project reserved area which is not suitable for arranging machine positions within the inner boundary in the site.

The number of the machine positions to be arranged refers to the number N of the edge machine positions_bAnd the number of internal machine positions N_aAnd (4) summing.

The edge machine positions refer to machine positions to be arranged on the inner boundary of the boundary limiting area, and the inner machine positions refer to machine positions to be arranged at each position in the site.

Referring to fig. 2, fig. 2 is a schematic flow chart of S1 in a method for arranging a stand of an offshore wind farm according to an embodiment of the present application, where step S1 includes steps S101 to S104, and the following steps are specifically included:

s101: and acquiring a first inflection point coordinate of the field address boundary, and acquiring the outer boundary of the boundary restrictive region according to the first inflection point coordinate.

The first inflection point coordinate refers to an inflection point coordinate of a field boundary.

The arrangement equipment can obtain the first inflection point coordinate by reading the pre-stored engineering design data. The engineering design data includes the inflection point coordinates of the site boundary.

The configuration device may also calculate an inflection point coordinate of the boundary of the field address by using a preset inflection point calculation algorithm, a region where the field address is located, topographic data of the field address, and the like.

And then, the arrangement equipment connects the first inflection points at the first inflection point coordinates one by one according to the first inflection point coordinates to obtain the outer boundary of the boundary limiting area.

S102: and according to the outer boundary of the boundary limiting area and a preset limiting width, the outer boundary of the boundary limiting area is extended inwards to obtain the inner boundary of the boundary limiting area.

The layout equipment can obtain the limited width by reading the pre-stored engineering design data. Wherein the engineering design data includes the limit width of the field boundary.

The configuration device may also calculate the limit width of the boundary of the field address by using a preset limit width calculation algorithm, the area where the field address is located, the topographic data of the field address, and the like.

In an embodiment of the application, the layout equipment reads pre-stored engineering design data, and according to the form of the machine position lower support structure and the pile foundation diameter included in the engineering design data, if the form of the machine position lower support structure is a jacket form, a jacket root opening is denoted by Dj, a pile foundation diameter is denoted by Dt, and an outward expansion distance is denoted by De, the limited width Db is expressed as: db ═ (Dj + Dt)/2+ De.

If the form of the lower support structure of the stand is a non-pipe rack form, Db is expressed as: db is Dt/2+ De.

Wherein the external expansion distance De is specified by the offshore wind power development and construction management method.

And then arranging the outer boundary of the boundary limiting area of the equipment and a preset limiting width, and forming an inner boundary after the outer boundary is expanded inwards by the preset limiting width.

The accuracy of the acquired boundary restrictive region is improved by calculating the outer boundary and the inner boundary more accurately.

S103: and determining whether an engineering reserved area which is not suitable for arranging machine positions exists in an area within the inner boundary, and if so, identifying a second boundary inflection point coordinate of the engineering reserved area.

In the embodiment of the application, the arrangement equipment judges whether the engineering reserved area which is not suitable for arranging the machine position exists in the site or not according to engineering geological survey data and engineering design data. And if so, identifying the boundary inflection point coordinate of the corresponding area as a second boundary inflection point coordinate of the engineering reserved area.

The engineering geological survey data comprises an engineering geological survey report, a submarine topography measurement report, a submarine pipeline and obstacle exploration report.

The engineering design data comprises the coordinates of the anemometer tower in the site and the coordinates of the offshore booster station in the site.

The project reserved area which is not suitable for arranging the machine positions comprises an unfavorable geological area which is not suitable for arranging the machine positions, a submarine cable routing channel, a sunken ship point, a submarine special terrain, an area of a wind measuring tower in the site, an area of an offshore booster station in the site and the like.

Judging whether a bad geological area which is not suitable for arranging the machine positions exists in the site or not according to the engineering geological survey report; judging whether submarine cable routing channels and sunken ship points which are not suitable for arranging machine positions exist in sites or not according to the submarine topography measurement report; judging whether special submarine terrains which are not suitable for arranging machine positions exist in sites or not according to the submarine terrains measurement report; and judging whether the area of the in-site wind measuring tower which is not suitable for arranging the machine positions and the area of the offshore booster station in the site exist in the site according to the engineering design data.

S104: and acquiring the internal restrictive area according to the second boundary inflection point coordinate.

In the embodiment of the application, the arrangement equipment identifies the engineering reserved area which is not suitable for arranging the machine positions according to the second boundary inflection point coordinate, and the engineering reserved area is used as the internal restrictive area, so that the internal restrictive area is obtained more accurately.

Besides acquiring the boundary restrictive region and the internal restrictive region, the number of machine positions to be arranged needs to be acquired, which is specifically as follows:

and the configuration equipment obtains the site planning capacity and the single machine rated capacity of the selected machine type. The single-machine rated capacity refers to the rated power generation capacity of one machine-position generator.

And the configuration equipment acquires the site planning capacity E and the single machine rated capacity E of the selected machine type through input equipment. Wherein, the input device may be an input device built in the arranging device, for example: a touch screen or a keyboard, etc. The user can touch and input the wind power plant planning capacity E and the single machine rated capacity E of the selected machine type by operating the touch screen, or the user can input the wind power plant planning capacity E and the single machine rated capacity E of the selected machine type by operating the keyboard and pressing keys.

Determining the total number N of the machine positions to be arranged according to the field planning capacity E and the single machine rated capacity E of the selected machine type_t，N_tE/E; the total number N of the machine positions to be arranged is obtained through calculation_t。

Wherein, in an optional embodiment, the number N of edge machine positions to be arranged is specified_b(ii) a Allocating the remaining machine position as an internal machine position N_a，N_a＝N_t-N_b。

In the embodiment of the application, the arranging equipment is arranged through the input equipmentAcquiring the planning capacity E of the wind power plant and the single machine rated capacity E of the selected machine type, and calculating to obtain the total number N of the machine positions to be arranged_tAnd according to the number N of the edge machine positions to be arranged_bAnd calculating to obtain an internal machine position N_a。

S2: arranging N on the inner boundary according to a preset first machine position arrangement strategy_bAnd arranging a plurality of candidate internal machine positions in an area within the field address boundary according to a preset second machine position arrangement strategy.

In this application embodiment, the equipment of arranging appoints the regional region of arranging as marginal machine position of the inner boundary in boundary restrictive region, and the equidistance is arranged the marginal machine position on the inner boundary in every boundary restrictive region, acquires marginal machine position can calculate the generated power of marginal machine position more accurately.

As shown in fig. 3, the step S2 includes steps S201 to S202, which are specifically as follows:

s201: at the inner boundary, N are arranged at equal intervals_bAnd the edge machine position.

Specifically, the first machine position arrangement strategy is provided with n inner inflection points of a boundary limiting area_B+1, marked as B₁,B₂,… B_n,B_n+1The inner boundary formed by the connection of adjacent inflection points has n_BThe inner boundary of the strip for placing the edge machine position is n_B' strip, n_B′≦n_B； n_B' the number of edge positions placed on the inner boundary of a strip is respectively recorded as N₁,N₂,…N_nB', the number of edge stations to be arranged is N_b，N_b＝∑N_i，i＝1,2,…n_B′，N_iIndicates the number of edge machine positions on the inner boundary of the ith placement edge machine position, N_b<N_t。

Take the inner boundary of the ith edge placement machine as an example, the edge placement machine is marked as b₁,b₂,…b_Ni-1,b_Ni，

As shown in fig. 4, fig. 4 is a schematic view of coordinate axis rotation according to an embodiment of the present application.

East as the x-axis of the original coordinate system, north as the y-axis of the original coordinate system, B_iAnd B_i+1The coordinate is (X)_i,Y_i) And (X)_i+1,Y_i+1) For better equidistant arrangement of N at said inner boundary_bThe edge machine positions acquire coordinates of the edge machine positions, and an original mark needs to be rotated to rotate an original coordinate system so as to acquire a new coordinate system; x' axis and B of new coordinate system after rotation_iAnd B_i+1The straight line on which the connecting line of the coordinates is located is parallel, B_iAnd B_i+1The coordinates in the new coordinate system are noted as (X)_i′,Y_i') and (X)_i+1′,Y_i+1′)：

X′_i＝X_i cos(α)+Y_i sin(α)

Y′_i＝Y_i cos(α)-X_i sin(α)

X′_i+1＝X_i+1 cos(α)+Y_i+1 sin(α)

Y′_i+1＝Y_i+1 cos(α)-X_i+1 sin(α)

Note B_iAnd B_i+1Has a length L, then b₁,b₂,…b_Ni-1,b_NiThe coordinates in the new coordinate system are marked as (x)_j′,y_j′)：

y_j′＝Y_i′,j＝1,2,…N_i

Through coordinate transformation, b₁,b₂,…b_Ni-1,b_NiThe coordinate in the original coordinate system is marked as (x)_j,y_j)：

x_j＝x_j′cos(2π-α)+y_j′sin(2π-α),j＝1,2,…N_i

y_j＝y_j′cos(2π-α)-x_j′sin(2π-α),j＝1,2,…N_i

In the embodiment of the application, the arrangement equipment arranges N on the inner boundary at equal intervals through the first machine position arrangement strategy_bAnd the edge machine position.

S202: constructing grids with equal line spacing and equal column spacing in a plane oblique angle coordinate system, and arranging a plurality of candidate internal machine positions on intersection points of each line and column in the grids; and the plane bevel coordinate system is established by taking a site center preset by the offshore wind power plant as an origin.

Fig. 5 is a schematic diagram of a planar diagonal coordinate system according to an embodiment of the present application, as shown in fig. 5.

Site centre (X) preset by said offshore wind farm_c,Y_c) A plane oblique angle coordinate system x ' Oy ' is established for the origin, the included angle between the y ' axis and the positive north is recorded as gamma, and the angle is more than or equal to 0 DEG and less than or equal to gamma<180 degrees; the angle between the x "axis and the y" axis is designated as delta, 0 °<δ<180°。

In a plane oblique angle coordinate system x 'Oy', a fixed distance D is taken_lAnd D_s(D_l≥D_s) The inner machine positions a are arranged along the x 'axis and the y' axis in sequence, and the coordinate is marked as (x)_k″,y_k″)：

x_k″＝±(k-1)D_l,k＝1,2,…

y_k″＝±(k-1)D_s,k＝1,2,…

Converting the coordinate of the internal machine position a into a planar rectangular coordinate system by using the conversion relation of the planar rectangular coordinate system, and recording as (x)_k,y_k)：

x_k＝x_k″cos(180°-δ)+y_k″cos(270°-δ-γ)+X_c，k＝1,2,…m

y_k＝x_k″sin(180°-δ)+x_k″sin(270°-δ-γ)+Y_c，k＝1,2,…m

In this application embodiment, the regional of arranging as marginal machine position of the interior boundary of the equipment appointed boundary restrictive region of arranging, the equidistance is arranged marginal machine position on the interior boundary of every boundary restrictive region, acquires marginal machine position, and with marine wind power plant predetermines the site center and establishes plane oblique angle coordinate system for the initial point construct the mesh of equidistant and equidistant interval of equidistant and the range of the interior machine position of a plurality of candidate and arrange on each row's intersect in the mesh, can more accurately calculate the generated power of marginal machine position.

S3: according to a preset invalid machine position removing algorithm, removing invalid machine positions in the arranged candidate internal machine positions to obtain N arranged in an area within the field address boundary_aAn internal machine location; wherein the number of the machine positions to be arranged is the number N of the edge machine positions_bAnd the number of internal machine positions N_aAnd (4) summing.

The invalid machine position refers to a machine position with low power generation efficiency, and in the embodiment of the application, the invalid machine position refers to a candidate inner machine position which is arranged in a boundary limiting area, an inner limiting area and a minimum distance with an edge machine position and is lower than 3 times of the diameter of an impeller of the machine position.

In an alternative embodiment, in order to better remove the invalid aircraft seats, please refer to fig. 6, where fig. 6 is a schematic flow chart of S3 in the aircraft seat arrangement method of the offshore wind farm according to an embodiment of the present application, and the method further includes step S301, which is as follows:

s301: and obtaining invalid machine positions according to the positions of the edge machine positions in the site and the positions of the internal machine positions in the site, and removing the invalid machine positions from the candidate internal machine positions.

In the embodiment of the application, the arrangement equipment acquires the minimum distance between the edge machine position and the candidate internal machine position, and according to the position of each edge machine position in the site and the position of each internal machine position in the site, the candidate internal machine position which is arranged in the boundary limiting area, the internal limiting area and the minimum distance between the candidate internal machine position and the edge machine position and is lower than 3 times of the diameter of the impeller of the machine position is taken as an invalid machine position, and the invalid machine position is removed from the candidate internal machine position; and when the number of the residual machine positions is equal to the number of the internal machine positions to be distributed, obtaining the internal machine positions distributed in the area within the field address boundary.

S4: keeping the number of the machine positions to be arranged unchanged, and adjusting the number N of the edge machine positions_bAnd the number of internal machine positions N_aRepeating the steps S2-S3 to obtain a plurality of first machine position arrangement modes; the machine position arrangement mode comprises the position of each edge machine position in a field address and the position of each internal machine position in the field address.

In this embodiment, after the configuration device obtains the first machine position configuration mode, the number of the machine positions to be configured is kept unchanged, the number of the edge machine positions and the number of the internal machine positions are adjusted, and the steps S2 to S3 are repeatedly executed to obtain a plurality of first machine position configuration modes.

in the embodiment of the application, after the configuration equipment acquires a plurality of machine position configuration modes, the power generation power of each machine position in the machine position configuration modes is calculated according to a preset power generation calculation method, the total power generation power of each machine position configuration mode is counted, and the machine position configuration mode with the highest power generation power is acquired as the first machine position configuration mode.

In an alternative embodiment, in order to better obtain the full-site generated power of the candidate arrangement mode, please refer to fig. 7, fig. 7 is a schematic flow diagram of S5 in the method for arranging a stand of an offshore wind farm according to an embodiment of the present application, and the method further includes steps S501 to S503, which are as follows:

s501: and acquiring a wind speed-wind direction combined frequency distribution table, an offshore wind resource map, a machine position power curve and a machine position thrust coefficient curve.

The wind speed-wind direction combined frequency distribution table refers to a statistical result of annual wind measurement data of the offshore wind measuring tower; the offshore wind resource map refers to a wind speed and wind direction simulation result of a mesoscale meteorological model which is continuous for at least 10 years.

The wind speed-wind direction combined frequency table is derived from the annual wind measurement data statistical result of the offshore wind measurement tower, the wind speed interval is 0.5m/s, and the wind speed statistical range is 0-25 m/s; the wind direction statistical range is 0-360 degrees, and 36 wind direction sectors are averagely divided.

The offshore wind resource map is derived from wind speed and wind direction simulation results of at least 10 continuous years in a mesoscale meteorological model, the coverage area of the offshore wind resource map at least comprises an offshore wind measuring tower and a whole site corresponding to a wind speed-wind direction combined frequency table, the spatial resolution of lattice points is less than or equal to 1km, the average wind speed of each lattice point in different wind direction sectors in the whole simulation period is obtained through statistics, and the wind direction sectors are kept consistent with the wind speed-wind direction combined frequency table.

The machine position power curve and the machine position thrust coefficient curve are derived from machine position data.

The configuration equipment can obtain a wind speed-wind direction combined frequency distribution table by reading a prestored annual wind measurement data statistical result of the offshore wind measurement tower.

The arrangement equipment can obtain the offshore wind resource map by reading the prestored wind speed and wind direction simulation results of the mesoscale meteorological model for at least 10 continuous years.

The arrangement equipment can obtain a machine position power curve and a thrust coefficient curve by reading pre-stored machine position data.

S502: and calculating the actual wind speed of each machine position in the first machine position arrangement mode according to the first machine position arrangement mode, the wind speed-wind direction combined frequency table, the offshore wind resource map and a preset wake effect model.

The wake effect model is a wake mathematical model, in particular to an N.O.Jensen model, and the wake mathematical model enables a single machine to be positioned at a specific wind direction omega_singleOn other machine positionsThe actual wind speed loss dv' caused by the wake is expressed as:

wherein n is_singleIs omega_singleThe number of wake flows in the direction; c_TIs the thrust coefficient of the machine position; d is the diameter of the machine position impeller; z is the distance between machine positions in omega_singleA projected distance in a direction; k is a wake flow attenuation coefficient, and is taken as 0.04 according to sea surface conditions; phi is a wake shielding coefficient, which indicates the shielding degree of the fan by the wake in the upwind direction, and the value range is 0-1.

According to the wind speed-wind direction combined frequency table, representing the wind direction omega (0 degrees, 10 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees, 160 degrees, 170 degrees, 180 degrees, 190 degrees, 200 degrees, 210 degrees, 220 degrees, 230 degrees, 240 degrees, 250 degrees, 260 degrees, 270 degrees, 280 degrees, 290 degrees, 300 degrees, 310 degrees, 320 degrees, 330 degrees, 340 degrees, 350 degrees), the coordinates (x degrees, 280 degrees, 290 degrees, 300 degrees, 310 degrees, 320 degrees, 330 degrees, 340 degrees, 350 degrees) of the edge machine position and the interior machine position in the arrangement mode are aligned_i,y_i) Rotating: to rotated machine location coordinates (x'_i,y′_i)

x′_i＝x_i cos(270°-Ω)+y_i sin(270°-Ω),＝1,2,…N_t

y′_i＝y_i cos(270°-Ω)-x_i sin(α270°-Ω),＝1,2,…N_t

In the wake effect mathematical model, the wind speeds V (0.5m/s, 1.0m/s, 1.5m/s, 2.0m/s, 2.5m/s, 3.0m/s, 3.5m/s, 4.0m/s, 4.5m/s, 5.0m/s, 5.5m/s, 6.0m/s, 6.5m/s, 7.0m/s, 7.5m/s, 8.0m/s, 8.5m/s, 9.0m/s, 9.5m/s, 10.0m/s, 10.5m/s, 11.0m/s, 11.5m/s, 12.0m/s, 12.5m/s, 13.0m/s, 13.5m/s, 14.0m/s, 14.5m/s, 15.5m/s, 15.0m/s, 15.5m/s, 15.0m/s, 15.5m/s, and the wind direction frequency meterAs a position (x/s) of the offshore anemometer tower (x/s), 16.5m/s, 17.0m/s, 17.5m/s, 18.0m/s, 18.5m/s, 19.0m/s, 19.5m/s, 20.0m/s, 20.5m/s, 21.0m/s, 21.5m/s, 22.0m/s, 22.5m/s, 23.0m/s, 23.5m/s, 24.0m/s, 24.5m/s, 25.0m/s)_mast,y_mast) Ambient wind velocity V_mastAccording to the wind speed proportional relation R of the offshore wind resource map_gridCalculating the actual wind speed V of each machine position_i：

R_grid ⁱ＝V_grid ⁱ/V_grid,mast,i＝1,2,…N_t

V_i＝R_grid ⁱ V_mast,i＝1,2,…N_t

In the formula, V_grid,mastIs the wind speed (wind direction is omega) of the nearest lattice point in the offshore wind resource map and the offshore anemometer tower, and V_grid ⁱAnd the wind speed (the wind direction is omega) of the grid point closest to the ith position in the offshore wind resource map.

In this embodiment of the application, the configuration device rotates the coordinates of the edge machine position and the internal machine position according to the wind speed-wind direction combined frequency table, so that the x-axis of the rotated edge machine position and the x-axis of the rotated internal machine position are parallel to the wind direction, and the rotated machine position coordinate (x'_i,y′_i) (ii) a According to x'_iThe sizes of the wind speed attenuation units can be used for sequencing the edge machine positions and the internal machine positions to obtain the machine position in the upmost wind direction, the calculation of the wind speed attenuation at the downwind machine position can be carried out by utilizing a wake flow model according to the environmental wind speed from the machine position, so that the actual wind speeds of the edge machine position and the internal machine position are calculated sequentially from the last machine position in the downmost wind direction.

S503: and obtaining the total power generation power in the first machine position arrangement mode according to the actual wind speed of each machine position, the wind speed-wind direction combined frequency table, the machine position power curve, the machine position thrust coefficient curve and a preset power generation power calculation algorithm.

And the configuration equipment repeats the processes in sequence according to each representative wind speed and representative wind direction in the wind speed-wind direction combined frequency table, the actual wind speed of each machine position, a preset model, a power curve and a thrust coefficient curve of the machine position to obtain the generated power of the edge machine position and the internal machine position under different wind speed and wind direction conditions.

And obtaining the total power of the whole-field power generation under the full wind speed and the full wind direction according to the occurrence frequency in the wind speed-wind direction combined frequency table, wherein the occurrence frequency of each representative wind speed and each wind direction refers to the ratio of the number of samples to the total number of samples in a specific wind speed and wind direction interval.

In the embodiment of the application, the wake effect mathematical model is combined with the thrust coefficient curve of the machine position, and calculation is sequentially started from the machine position (the machine position with the maximum x 'coordinate) in the uppermost wind direction to obtain the actual wind speed loss dv' and the actual wind speed V of each downwind machine position after wake attenuation_i′＝V_i-dv′。

And then, the occurrence frequency of each wind speed and wind direction in the machine position power curve and the wind speed-wind direction combined frequency table is combined, the actual power generation power of each machine position in the first machine position arrangement mode in the full wind speed section and the full wind direction is calculated, the total power generation power of each machine position arrangement mode is counted, the machine position arrangement mode with the highest power generation power is obtained as the first machine position arrangement mode, and the calculation accuracy and the calculation practicability are improved.

S6: and adjusting the position of each internal machine position in the first machine position arrangement mode with the highest power generation power according to a preset machine position distance adjustment strategy to obtain a plurality of second machine position arrangement modes.

In the embodiment of the application, the distribution equipment calculates the offset of the internal machine position coordinates of the first machine position distribution mode according to a preset machine position distance adjustment strategy, the distribution equipment adjusts the position of the internal machine position of the first machine position distribution mode according to the offset to obtain a plurality of first machine position distribution modes, the first machine position distribution modes after the plurality of adjustment are subjected to generated energy calculation and comparison, the first machine position distribution mode with the highest generated energy is selected as the second machine position distribution mode, and the purpose of enabling the full-field generated power to be improved to the highest and serving as the optimization mode is achieved.

As shown in fig. 8, the step S6 includes S601, which is as follows:

s601: and acquiring the maximum distance amplification between each internal machine position in the first machine position arrangement mode, setting distance weight according to the maximum distance amplification, adjusting the distance between each internal machine position in the first machine position arrangement mode, and acquiring a plurality of second machine position arrangement modes.

Specifically, the arrangement equipment acquires the maximum distance amplification between each internal machine position in the first machine position arrangement mode, sets a distance weight according to the maximum distance amplification and a preset distance weight adjustment function, adjusts the distance between each internal machine position in the first machine position arrangement mode, and acquires a plurality of second machine position arrangement modes.

Wherein the distance weight adjustment function consists of 1 linear function and 4 nonlinear functions, and is denoted as f₁(d)～f₅(d)：

f₁(d)＝-d+1,0≤d≤1

In the embodiment of the application, the arranging equipment increases according to the maximum distance and passes through f₁(d)～f₅(d) Obtaining the adjustment of the first machine position arrangement mode, obtaining a plurality of adjusted first machine position arrangement modes, calculating and comparing the generated energy of the plurality of adjusted first machine position arrangement modes, and generating electricityThe first machine position arrangement mode with the highest quantity is used as a second machine position arrangement mode.

In an optional embodiment, in order to better obtain the second machine location arrangement manner, please refer to fig. 9, where fig. 9 is a schematic flow diagram of S601 in the machine location arrangement method of the offshore wind farm provided by this application, and the method further includes steps S6011 to S6017, which are specifically as follows:

s6011: acquiring a target machine position row, a first machine position row positioned on one side of the target machine position row and a second machine position row positioned on the other side of the target machine position row in the first machine position arrangement mode; wherein the internal machine position in the target machine position row is the internal machine position in the row with the lowest average generating power.

In the embodiment of the application, the arrangement equipment acquires a line spacing and a column spacing, and acquires a first machine position line positioned on one side of a target machine position line and a second machine position line positioned on the other side of the target machine position line through the target machine position line and the line spacing;

and obtaining a first machine position column positioned on one side of the target machine position column and a second machine position column positioned on the other side of the target machine position column through the target machine position column and the column spacing.

As shown in fig. 10, fig. 10 is a schematic diagram of coordinate axis transformation provided in an embodiment of the present application, and the arrangement device obtains γ of each internal machine position in the first machine position arrangement manner_best、δ_best、D_l,bestAnd D_s,best(ii) a Wherein, said γ is_bestThe included angle between the specific y' axis corresponding to the first machine position arrangement mode and the positive north direction is indicated; delta. the_bestThe included angle between the x 'axis and the y' axis corresponding to the first machine position arrangement mode is shown; said D_l,bestAnd D_s,bestMeans D corresponding to the first machine position arrangement mode_lAnd D_s。

By gamma_best、δ_best、D_l,bestAnd D_s,bestEstablishing a plane oblique angle coordinate system, defining the row, line spacing and column spacing of the machine positions in the first machine position arrangement mode in the plane oblique angle coordinate system, and recording the coordinates of the machine positions in the original rectangular coordinate system as (x)_i, y_i) And transforming into a plane oblique angle coordinate system:

counting the difference D of the x 'coordinates between the edge machine position and the inner machine position along the direction from the large to the small of the x' coordinates_xWill | D_x|<The rows in the 3D first machine position arrangement are numbered as R_i,i＝1,2,…n_r(ii) a X' coordinate mean x of machine position of each row_meanThe absolute value of the difference therebetween is the line spacing D_r". The absolute value of the y' coordinate difference of the machine position in each row is the column spacing D_c". The target machine position line is the line with the lowest average generated power and is marked as R_min(ii) a The first machine position line is positioned at the target machine position line R_minToward the side of the decreasing x "spacing; the second machine position row is positioned at the target machine position row R_minToward the side of increased x "spacing.

S6012: and respectively acquiring the maximum line spacing amplification corresponding to the first machine position line and the maximum line spacing amplification corresponding to the second machine position line according to the position of each internal machine position in the first machine position line in the site and the position of each internal machine position in the second machine position line in the site.

In the first machine position arrangement mode D_l,bestOne third of the value of (1) is used as an initial value delta x, the position of each internal machine position in the first machine position row in the field address is moved according to the initial value delta x, and an invalid machine position is removed according to a preset invalid machine position removing algorithm; after the invalid machine position is removed, the number of the machine positions in the first machine position line is unchanged, and the maximum line spacing increase corresponding to the first machine position line is obtained and recorded as delta x₁″。

Moving the position of each internal machine position in the second machine position row in the field address according to the initial value delta x, and removing the position according to a preset invalid machine position removing algorithm,removing invalid machine positions; the number of machine bits in the second machine bit line is unchanged after the invalid machine bit is removed, and the maximum line spacing amplification corresponding to the second machine bit line is obtained and recorded as delta x₂″。

S6013: and acquiring line space weights corresponding to the first machine position lines and the second machine position lines according to the maximum line space amplification corresponding to the first machine position lines, the maximum line space amplification corresponding to the second machine position lines and a preset space weight calculation function.

In the embodiment of the present application, the configuration device counts the number of lines from the first machine position line to the target machine position line according to the target machine position line in the first machine position configuration mode, and records as n_e(ii) a Adjusting corresponding weight value by using an interval weight adjusting function to obtain the line interval weight w corresponding to each first machine position line₁Wherein w₁Is f₁(d)～f₅(d) Wherein any one of the weight adjusting functions f_pThe weighted value of (a) is noted as:

w_1,i＝f_p(d_i),i＝1,2,…n_e，p＝1,2,3,4,5

d_i＝(i-1)/(n_e-1),i＝1,2,…n_e

wherein i represents the serial number of each line from the first machine position line to the target machine position line, d_iDenotes f_pIs an independent variable of (1), consisting of i, n_eAnd (4) jointly determining.

Counting the number of lines from the target machine position line to the second machine position line according to the target machine position line in the first machine position arrangement mode, and recording as n_w(ii) a Adjusting corresponding weight values by utilizing a space weight adjusting function to obtain the space weight w between lines corresponding to the second machine position lines₂Wherein w is₂Is f₁(d)～f₅(d) The weight value of any one of the weight adjusting functions fp is recorded as:

w_2,j＝f_p(d_j),j＝1,2,…n_w，p＝1,2,3,4,5

d_j＝(j-1)/(n_w-1),j＝1,2,…n_w

wherein j represents the serial number of each line from the target machine position line to the second machine position line, d_jDenotes f_pIs an independent variable of (1), consisting of j, n_wAnd (4) jointly determining.

S6014: adjusting the line spacing of the first machine position line according to the maximum line spacing amplification corresponding to the first machine position line, the line spacing weight corresponding to each first machine position line and a preset spacing adjustment function, adjusting the line spacing of the second machine position line according to the maximum line spacing amplification corresponding to the second machine position line, the line spacing weight corresponding to each second machine position line and the preset spacing adjustment function, and obtaining the first machine position line after position adjustment and the second machine position line after position adjustment.

In the embodiment of the application, the arranging equipment increases the x' coordinate of each machine position of the first machine position row and increases the amplitude delta x according to the maximum line spacing corresponding to the first machine position row₁Setting the weight w from the first machine bit row to the target machine bit row by using the space weight adjustment function₁Adjusting the x' coordinates of each row:

x_i″＝x_i″+w_1,iΔx₁″,i＝1,2,…n_e

and adjusting the line spacing of each line between the target machine position line and the first machine position line to obtain the first machine position line after the position adjustment.

Reducing x' coordinates of each machine position of the second machine position row, and increasing delta x according to the maximum line spacing corresponding to the second machine position row₂Setting the weight w from the target machine position line to the second machine position line by using the space weight adjustment function₂(ii) a Adjusting each row x "coordinate:

x_j″＝x_j″-w_2,jΔx₂″,j＝1,2,…n_w

and adjusting the line spacing of each line between the target machine position line and the second machine position line to obtain the second machine position line after the position adjustment.

S6015: acquiring a first machine position located on one side of a target internal machine position and a second machine position located on the other side of the target internal machine position in each machine position row; the machine position row comprises the target machine position row, the adjusted first machine position row and the adjusted second machine position row, and the target internal machine position is an internal machine position with the lowest generating power in each machine position row;

in the embodiment of the application, the arranging equipment acquires a first machine position arranging mode after position adjustment, and acquires a first machine position located on one side of a machine position in a target and a second machine position located on the other side of the machine position in the target in each machine position row according to the first machine position arranging mode after position adjustment.

S6016: and acquiring the maximum column interval amplification corresponding to the first machine position and the maximum column interval amplification corresponding to the second machine position in the same machine position row according to the positions of the first machine position and the second machine position in the same machine position row.

In the embodiment of the application, the positions of the first machine position and the second machine position in the same machine position row are obtained, and D is the first machine position arrangement mode_s,bestOne third of the value of (1) is used as an initial value delta y, the position of each internal machine position in the first machine position row in the field address is moved according to the initial value delta y, and an invalid machine position is removed according to a preset invalid machine position removing algorithm; after the invalid machine position is removed, the number of the machine positions in the first machine position line is unchanged, and the maximum column spacing amplification corresponding to the first machine position line is obtained and recorded as delta y₁″。

Moving the position of each internal machine position in the second machine position column in the field address according to the initial value delta y, and removing invalid machine positions according to a preset invalid machine position removing algorithm; the number of the machine bits in the second machine bit line is unchanged after the invalid machine bit is removed, and the maximum column spacing amplification corresponding to the second machine bit line is obtained and recorded as delta y₂″。

S6017: acquiring a column space weight corresponding to each first machine position and a column space weight corresponding to each second machine position in the same machine position row according to a maximum column space amplification corresponding to the first machine position, a maximum column space amplification corresponding to the second machine position and a preset space weight calculation function in the same machine position row;

in the present embodiment, the apparatus is arranged according toThe internal machine positions of the machine position rows in the first machine position arrangement mode are obtained, the internal machine position with the lowest average power generation power in each row is obtained, the number from the first machine position in the same machine position row to the internal machine position with the lowest average power generation power is counted, and the number is recorded as n_n(ii) a Adjusting corresponding weight values by utilizing an interval weight adjusting function to obtain column interval weights w corresponding to the first machine position lines₃Wherein w is₃Is f₁(d)～f₅(d) Wherein any one of the weight adjusting functions f_pThe weighted value of (a) is noted as:

w_3,k＝f_p(d_k),k＝1,2,…n_n，p＝1,2,3,4,5

d_k＝(k-1)/(n_n-1),k＝1,2,…n_n；

wherein k represents the serial number of each internal machine position from the first machine position in the same machine position row to the internal machine position with the lowest average generated power, d_kDenotes f_pIs an independent variable of (1), represented by k, n_nAnd (4) jointly determining.

Counting the number from the internal machine position with the lowest average generating power to a second machine position in the same machine position row according to the internal machine position with the lowest average generating power in each row, and recording the number as n_s(ii) a Adjusting corresponding weight values by utilizing an interval weight adjusting function to obtain column interval weights w corresponding to the second machine position lines₄Wherein w is₄Is f₁(d)～f₅(d) Wherein any one of the weight adjustment functions f_pThe weighted value of (a) is noted as:

w_4,l＝f_p(d_l),l＝1,2,…n_s，p＝1,2,3,4,5

d_l＝(l-1)/(n_s-1),l＝1,2,…n_s；

wherein, l represents the serial number of each internal machine position from the internal machine position with the lowest average generating power to the second machine position in the same machine position row, d_lDenotes f_pThe independent variable in (1) is represented by l, n_sAnd (4) jointly determining.

S6018: and acquiring column space weights corresponding to the first machine positions and the second machine positions in the same machine position row according to the maximum column space amplification corresponding to the first machine positions, the maximum column space amplification corresponding to the second machine positions and a preset space weight calculation function.

In the embodiment of the application, the arrangement equipment adds y' coordinates to each machine position of the first machine position row, and increases the amplitude delta y according to the maximum column spacing corresponding to the first machine position row₁Setting the weight w using the pitch weight adjustment function₃Adjusting y' coordinates of the edge machine position and the internal machine position:

y_k″＝y_k″+w_3,kΔy₁″,k＝1,2,…n_n

reducing y' coordinates for each machine position of the first machine position row, and increasing delta y according to the maximum column spacing corresponding to the second machine position row₂Setting the weight w using the pitch weight adjustment function₄Adjusting the edge station and the internal station y^″Coordinates are as follows:

y_l″＝y_l″-w_4,lΔy₂″,l＝1,2,…n_s

the arrangement equipment adjusts the distance between each line by adjusting the distance weight, and further achieves the purpose of enabling the full-field power generation power to be improved to the maximum and serving as an optimization mode.

In the embodiment of the application, the arrangement equipment obtains a plurality of second machine position arrangement modes by continuously adjusting the number of the edge machine positions to be arranged, calculates the total power generation power of each second machine position arrangement mode, selects the highest optimization mode as the final recommended arrangement mode, and improves the accuracy of the final recommended arrangement mode.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a stand arrangement apparatus of an offshore wind farm according to an embodiment of the present application, which may be implemented by software, hardware or a combination thereof as all or a part of the stand arrangement apparatus of the offshore wind farm, where the apparatus 11 includes:

the wind power plant site constraint condition module 111 is used for acquiring a site boundary, a boundary limiting area, an internal limiting area and the number of machine positions to be arranged of the offshore wind power plant; the outer boundary of the boundary limiting region is the field address boundary, the inner boundary of the boundary limiting region is a boundary obtained by extending a preset limiting width inwards from the outer boundary, the inner limiting region is a sub-region in a region within the inner boundary, and the machine positions to be arranged comprise edge machine positions and inner machine positions;

an edge machine position generating module 112, configured to arrange N on the inner boundary according to a preset first machine position arrangement policy_bArranging a plurality of candidate internal machine positions in an area within the field address boundary according to a preset second machine position arrangement strategy;

an internal machine position generating module 113, configured to remove an invalid machine position from the arranged candidate internal machine positions according to a preset invalid machine position removing algorithm, so as to obtain N arranged in an area within the field boundary_aAn internal machine location; wherein the number of the machine positions to be arranged is the number N of the edge machine positions_bAnd the number of internal machine positions N_aSumming;

a repeated obtaining module 114, configured to keep the number of the stands to be arranged unchanged, and adjust the number N of the edge stands_bAnd the number of internal machine positions N_aRepeatedly calling the edge machine position generating module and the internal machine position generating module to obtain a plurality of first machine position arrangement modes; the machine position arrangement mode comprises the position of each edge machine position in a field address and the position of each internal machine position in the field address;

the first generating power calculating module 115 is configured to obtain a first machine position arrangement mode with the highest generating power from a plurality of machine position arrangement modes according to a preset generating power calculating algorithm;

an internal machine position interval adjusting module 116, configured to adjust, according to a preset machine position interval adjusting strategy, a position of each internal machine position in the first machine position arrangement mode with the highest power generation power, so as to obtain a plurality of second machine position arrangement modes;

and the second generated power calculation module 117 is configured to obtain a target machine position arrangement mode with the highest generated power from the plurality of second machine position arrangement modes according to a preset generated power calculation algorithm.

The machine position arrangement device of the offshore wind farm provided by the embodiment can fully consider the influences of complex wind resource conditions with multi-leading wind directions and non-uniform wind speed distribution, irregular site boundaries and the like on the machine position arrangement mode, and flexibly adapt to the complex geometric boundaries of wind farm sites by defining edge machine positions and internal machine positions; by utilizing the characteristics of a plane oblique angle coordinate system and by means of computer programming, a machine position in any direction and form is quickly generated and screened, and the complex wind resource with multiple dominant wind directions is flexibly adapted; the self-adaptive adjustment of the machine position distance is realized through a preset distance weight adjustment function, the complex wind resources with non-uniform distribution of wind speed are flexibly adapted, the defect of subjective experience is avoided, and the efficiency and the precision of the design of the machine position arrangement mode of the offshore wind power plant are improved.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a stand arrangement apparatus of an offshore wind farm according to an embodiment of the present disclosure. As shown in fig. 12, the device 12 may include: a processor 120, a memory 121, and a computer program 122 stored in the memory 121 and executable on the processor 120, such as: a machine position arrangement program of the offshore wind farm; the processor 120, when executing the computer program 122, implements the steps in the above-described method embodiments, such as the steps S1 to S7 shown in fig. 1. Alternatively, the processor 120, when executing the computer program 122, implements the functions of each module/unit in the above-mentioned device embodiments, for example, the functions of the modules 111 to 117 shown in fig. 11.

The processor 120 may include one or more processing cores, among others. The processor 120 is connected to various parts in the device 12 by various interfaces and lines, executes various functions of the device 12 and processes data by operating or executing instructions, programs, code sets or instruction sets stored in the memory 121 and calling up data in the memory 121, and optionally, the processor 120 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), Programmable Logic Array (PLA). The processor 120 may integrate one or a combination of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing contents required to be displayed by the touch display screen; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 120, but may be implemented by a single chip.

The Memory 121 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 121 includes a non-transitory computer-readable medium. The memory 121 may be used to store instructions, programs, code, sets of codes or sets of instructions. The memory 121 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch instructions, etc.), instructions for implementing the above-mentioned method embodiments, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 61 may optionally be at least one memory device located remotely from the processor 120.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium and used by a processor to implement the steps of the above embodiments of the method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc.

The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims

1. A method for arranging machine positions of an offshore wind power plant is characterized by comprising the following steps:

s1: acquiring site boundaries, boundary restrictive regions, internal restrictive regions and the number of machine positions to be arranged of an offshore wind power plant; the outer boundary of the boundary limiting region is the field address boundary, the inner boundary of the boundary limiting region is a boundary obtained by extending a preset limiting width inwards from the outer boundary, the inner limiting region is a sub-region in a region within the inner boundary, and the machine positions to be arranged comprise edge machine positions and inner machine positions;

s5: according to a preset power generation calculation algorithm, acquiring a first machine position arrangement mode with the highest power generation power from a plurality of machine position arrangement modes;

2. Method of configuration of stands of offshore wind farm according to claim 1, characterized in that said step of acquiring site boundaries, boundary restrictive zones and internal restrictive zones of an offshore wind farm comprises:

acquiring a first inflection point coordinate of the field address boundary, and acquiring an outer boundary of the boundary restrictive region according to the first inflection point coordinate;

and according to the outer boundary of the boundary limiting region and a preset limiting width, extending the outer boundary of the boundary limiting region inwards to obtain the inner boundary of the boundary limiting region.

3. The method of claim 1, wherein the step of obtaining site boundaries, boundary-restricted areas, internal restricted areas and the number of stands to be arranged of the offshore wind farm comprises:

determining whether an engineering reserved area which is not suitable for arranging machine positions exists in an area within the inner boundary, and if so, identifying a second boundary inflection point coordinate of the engineering reserved area;

and acquiring the internal restrictive area according to the second boundary inflection point coordinate.

4. Method for the placement of stands of an offshore wind farm according to any of the claims 1 to 3, characterized in that said N is placed on said inner boundary according to a preset first stand placement strategy_bAnd arranging a plurality of candidate internal machine positions in an area within the field address boundary according to a preset second machine position arrangement strategy, wherein the method comprises the following steps:

at the inner boundary, N are arranged at equal intervals_bEach said edge machine station;

constructing grids with equal line spacing and equal column spacing in a plane oblique angle coordinate system, and arranging a plurality of candidate internal machine positions on each line and column intersection points in the grids; the plane bevel coordinate system is a plane bevel coordinate system established by taking a site center preset by the offshore wind power plant as an origin.

5. Method for the berth alignment of an offshore wind farm according to any of claims 1 to 3, characterized in thatThen, according to a preset invalid machine position removing algorithm, removing the invalid machine positions in the arranged candidate internal machine positions to obtain N arranged in the area within the field address boundary_aAn internal station comprising the steps of:

obtaining invalid machine positions according to the positions of the edge machine positions in the site and the positions of the internal machine positions in the site, and removing the invalid machine positions from the candidate internal machine positions;

and when the number of the residual machine positions is equal to the number of the internal machine positions to be distributed, obtaining the internal machine positions distributed in the area within the field address boundary.

6. The method of any of claims 1 to 3, wherein the step of obtaining a first site arrangement with the highest generated power from a plurality of site arrangements according to a predetermined generated power calculation algorithm comprises the steps of:

acquiring a wind speed-wind direction combined frequency distribution table, an offshore wind resource map, a machine position power curve and a machine position thrust coefficient curve;

calculating the actual wind speed of each machine position in the first machine position arrangement mode according to the first machine position arrangement mode, the wind speed-wind direction combined frequency table, the offshore wind resource map and a preset wake effect model;

and obtaining the total power generation power in the first machine position arrangement mode according to the actual wind speed of each machine position, the wind speed-wind direction combined frequency table, the machine position power curve, the machine position thrust coefficient curve and a preset power generation power calculation algorithm.

7. The method of claim 1, wherein the adjusting the position of each internal machine position in the first machine position arrangement mode with the highest power generation power according to a preset machine position distance adjusting strategy to obtain a plurality of second machine position arrangement modes comprises:

and acquiring the maximum distance amplification between each internal machine position in the first machine position arrangement mode, setting distance weight according to the maximum distance amplification, adjusting the distance between each internal machine position in the first machine position arrangement mode, and acquiring a plurality of second machine position arrangement modes.

8. The method according to claim 7, wherein the step of obtaining a maximum distance increment between each of the internal stands in the first stand arrangement mode, setting a distance weight according to the maximum distance increment, adjusting the distance between each of the internal stands in the first stand arrangement mode, and obtaining a plurality of second stand arrangement modes comprises:

acquiring a target machine position row, a first machine position row positioned on one side of the target machine position row and a second machine position row positioned on the other side of the target machine position row in the first machine position arrangement mode; the internal machine position in the target machine position row is the internal machine position in the row with the lowest average power generation power;

respectively acquiring the maximum line spacing amplification corresponding to the first machine position line and the maximum line spacing amplification corresponding to the second machine position line according to the position of each internal machine position in the first machine position line in the site and the position of each internal machine position in the second machine position line in the site;

acquiring a line spacing weight corresponding to each first machine position line and a line spacing weight corresponding to each second machine position line according to a maximum line spacing amplification corresponding to the first machine position line, a maximum line spacing amplification corresponding to the second machine position line and a preset spacing weight calculation function;

adjusting the line spacing of the first machine position lines according to the maximum line spacing amplification corresponding to the first machine position lines, the line spacing weight corresponding to each first machine position line and a preset spacing adjustment function, adjusting the line spacing of the second machine position lines according to the maximum line spacing amplification corresponding to the second machine position lines, the line spacing weight corresponding to each second machine position line and the preset spacing adjustment function, and obtaining the first machine position lines after position adjustment and the second machine position lines after position adjustment;

acquiring a first machine position located on one side of a target internal machine position and a second machine position located on the other side of the target internal machine position in each machine position row; the machine position row comprises the target machine position row, the adjusted first machine position row and the adjusted second machine position row, and the target internal machine position is an internal machine position with the lowest generating power in each machine position row;

obtaining a maximum column interval amplification corresponding to the first machine position and a maximum column interval amplification corresponding to the second machine position in the same machine position row according to the positions of the first machine position and the second machine position in the same machine position row;

acquiring a column space weight corresponding to each first machine position and a column space weight corresponding to each second machine position in the same machine position row according to a maximum column space amplification corresponding to the first machine position, a maximum column space amplification corresponding to the second machine position and a preset space weight calculation function in the same machine position row;

adjusting the line spacing of the first machine positions in the same machine position row according to the maximum line spacing amplification corresponding to the first machine positions in the same machine position row, the line spacing weight corresponding to each first machine position and a preset spacing adjustment function, adjusting the line spacing of the second machine positions in the same machine position row according to the maximum line spacing amplification corresponding to the second machine positions in the same machine position row, the line spacing weight corresponding to each second machine position and the preset spacing adjustment function, and obtaining the first machine positions after position adjustment and the second machine positions after position adjustment in the same machine position row.

9. A machine position arrangement device of an offshore wind farm, comprising:

an internal machine position generating module, configured to remove an invalid machine position in the arranged candidate internal machine positions according to a preset invalid machine position removing algorithm, so as to obtain N arranged in an area within the field boundary_aAn internal machine location; wherein the number of the machine positions to be arranged is the number N of the edge machine positions_bAnd the number of internal machine positions N_aSumming;

and the second generating power calculating module is used for obtaining a target machine position arrangement mode with the highest generating power from the plurality of second machine position arrangement modes according to a preset generating power calculating algorithm.

10. An arrangement of stands of an offshore wind farm, comprising a processor, a memory and a computer program stored in the memory and executable on the processor, the processor when executing the computer program implementing the steps of the method of stand arrangement of an offshore wind farm according to any of the claims 1 to 8.