An automatic planning method, device and electronic device for a photovoltaic array

Abstract

The present invention provides an automatic planning method, device and electronic device for a photovoltaic array. The automatic planning method for the photovoltaic array includes: clustering according to one of the photovoltaic supports, photovoltaic strings and pile foundations of the photovoltaic array to obtain a plurality of clustering combinations; grouping the clustering combinations to obtain a plurality of offset groups; generating a first bridge section within each offset group; and connecting the first bridge sections to form a complete bridge. The automatic planning method for the photovoltaic array of the present invention can comprehensively consider the arrangement of the photovoltaic supports (or photovoltaic strings, pile foundations), effectively calculate the offset directions of the offset groups inside each photovoltaic array, obtain the internal offset characteristics of the complex-shaped array, and thus specifically generate bridges, busbar areas, etc. adapted to the local terrain in the offset groups in each offset direction, realizing the automatic planning of the photovoltaic array. It has strong pertinence, and enables the offset groups with different offset directions to be suitable for separate calculation (planning), which can improve the efficiency, reliability and applicability of this method.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic power stations, and more particularly, to an automatic planning method, device, and electronic device for a photovoltaic array. Background Art

[0002] For a photovoltaic power station installed in a complex terrain such as a mountain, the photovoltaic array needs to be set according to the terrain, so that the offset directions of the photovoltaic strings in the photovoltaic array are also different. However, most of the current related design software (such as iSolarTool, PVdesign, etc.) can only perform array zoning, busbar area division, bridge path planning, cable routing, etc. of the photovoltaic power station according to a fixed offset direction. It cannot comprehensively consider the multi-offset arrangement in the photovoltaic array under complex terrain conditions, and the generated results are not applicable in complex terrain. For example, without considering the multi-offset situation, the generated bridge cannot conform to the array offset direction, resulting in a bridge path that is difficult to apply to the actual construction scenario. In this way, the obtained planning results still need to be manually adjusted, which is time-consuming and laborious. Summary of the Invention

[0003] The problem solved by the present invention is: how to achieve automatic planning of a photovoltaic array in a complex terrain.

[0004] To solve the above problems, the present invention provides an automatic planning method for a photovoltaic array, including:

[0005] Clustering according to one of the photovoltaic supports, photovoltaic strings, and pile foundations of the photovoltaic array to obtain a plurality of clustering combinations;

[0006] Grouping the clustering combinations to obtain a plurality of offset groups;

[0007] Generating a first bridge segment within each of the offset groups;

[0008] Connecting the first bridge segments to form a complete bridge.

[0009] Optionally, the clustering according to one of the photovoltaic supports, photovoltaic strings, and pile foundations of the photovoltaic array to obtain a plurality of clustering combinations includes:

[0010] Clustering according to the photovoltaic support to obtain a plurality of clustering combinations regarding the photovoltaic support.

[0011] Optionally, the clustering according to the photovoltaic support to obtain a plurality of clustering combinations regarding the photovoltaic support includes:

[0012] Determining the center point coordinates of all the photovoltaic supports on the photovoltaic array;

[0013] Determining a clustering radius according to the center point coordinates;

[0014] Cluster the photovoltaic supports according to the clustering radius to obtain a plurality of the clustering combinations.

[0015] Optionally, the grouping of the clustering combinations to obtain a plurality of offset groups includes:

[0016] Determine the offset slope of each clustering combination according to the center point coordinates and the clustering combination;

[0017] Group the clustering combinations according to the offset slope to obtain a plurality of the offset groups.

[0018] Optionally, generating a first bridge section within each offset group includes:

[0019] Determine the bridge division ratio of the photovoltaic array and the number of branch circuits in the current collection area;

[0020] Determine the generation quantity of the first bridge section of each offset group according to the bridge division ratio and the number of branch circuits in the current collection area;

[0021] Divide each offset group into blocks according to the generation quantity, and determine the generation position of the first bridge section on each block;

[0022] Generate the first bridge section according to the generation quantity and the generation position.

[0023] Optionally, connecting the first bridge sections to form a complete bridge includes:

[0024] Generate a second bridge section connecting all the first bridge sections according to the generation position, and the first bridge section and the second bridge section constitute the complete bridge.

[0025] Optionally, after dividing each offset group into blocks, the automatic planning method of the photovoltaic array further includes:

[0026] Determine the number of photovoltaic strings in each branch circuit of the current collection area according to the number of branch circuits in the current collection area;

[0027] Divide the branch circuits in the current collection area within each block according to the number of photovoltaic strings.

[0028] Optionally, dividing the branch circuits in the current collection area within each block according to the number of photovoltaic strings includes:

[0029] Divide the photovoltaic strings in an S shape within each block according to the number of photovoltaic strings to obtain the branch circuits in the current collection area.

[0030] To solve the above problems, the present invention also provides an automatic planning device for a photovoltaic array, comprising:

[0031] A clustering unit, configured to perform clustering according to the photovoltaic array to obtain a plurality of clustering combinations;

[0032] A grouping unit, configured to group the clustering combinations to obtain a plurality of offset groups;

[0033] A planning unit, configured to generate a first bridge section within each of the offset groups; and to connect the first bridge sections to form a complete bridge.

[0034] To solve the above problems, the present invention also provides an electronic device, comprising a computer-readable storage medium storing a computer program and a processor. When the computer program is read and run by the processor, the automatic planning method for the photovoltaic array as described above is implemented.

[0035] Compared with the prior art, the present invention has the following beneficial effects: First, the method clusters the photovoltaic brackets (or photovoltaic strings, pile foundations) in the photovoltaic array to obtain a plurality of clustering combinations, which is convenient for subsequent grouping; then, the clustering combinations are grouped so that the clustering combinations with the same or similar slopes are grouped into offset groups, thereby grouping the plurality of clustering combinations into a plurality of offset groups, which is convenient for subsequent planning of the first bridge section adapted to the slope of the offset group; then, the first bridge section is generated within each offset group to obtain the first bridge section adapted to each offset group, that is, the first bridge section is the same as or similar to the slope of the offset group (the slope of the clustering combinations within the offset group), that is to say, the first bridge section is the same as or similar to the offset direction of the offset group, so that the first bridge section generated within each offset group can be smoothly arranged on the pile foundation supporting the photovoltaic bracket, improving the convenience of the installation and construction of the first bridge section, and enabling the first bridge section to conform to the actual construction wiring scenario, facilitating the wiring of the photovoltaic strings on each photovoltaic bracket within the offset group through the corresponding first bridge section; finally, the first bridge sections of all offset groups within the photovoltaic array are connected and connected to form a complete bridge, so that the cables of various devices such as photovoltaic strings within the photovoltaic array can be smoothly connected to devices such as box transformers through the complete bridge. In this way, the method divides and groups the photovoltaic array by comprehensively arranging the multi-offset directions of the photovoltaic brackets (or photovoltaic strings, pile foundations) in the photovoltaic array with a complex shape, generates a complete bridge with a plurality of first bridge sections having different offset directions, and realizes the automatic planning of the photovoltaic array with a complex shape. Moreover, the method can effectively calculate the offset direction of the offset group inside each photovoltaic array, obtain the internal offset characteristics of the square array with a complex shape, and thus generate bridges, busbar areas, etc. adapted to the local terrain in the offset groups in each offset direction, with strong pertinence, and enabling each offset group with a different offset direction to be suitable for independent calculation (planning), which can improve the efficiency, reliability and applicability of the method. Description of the Drawings

[0036] Figure 1 It is a flowchart of the automatic planning method for the photovoltaic array in the embodiment of the present invention;

[0037] Figure 2 It is a sub - flowchart of step 100 in the embodiment of the present invention;

[0038] Figure 3 It is a sub - flowchart of step 200 in the embodiment of the present invention;

[0039] Figure 4 It is a sub - flowchart of step 300 in the embodiment of the present invention;

[0040] Figure 5 It is a partial flowchart of the automatic planning method for the photovoltaic array in another embodiment of the present invention;

[0041] Figure 6 It is a structural block diagram of the automatic planning device for the photovoltaic array in the embodiment of the present invention;

[0042] Figure 7 It is a schematic diagram of the clustering combination of the photovoltaic support division in the photovoltaic array in the embodiment of the present invention;

[0043] Figure 8 It is a schematic diagram of the offset group of the photovoltaic support division in the photovoltaic array in the embodiment of the present invention;

[0044] Figure 9 It is a schematic diagram of the offset group segmentation block in the embodiment of the present invention;

[0045] Figure 10 It is a schematic diagram of generating the first bridge section within the block in the embodiment of the present invention;

[0046] Figure 11 It is a schematic diagram of forming a complete bridge in the photovoltaic array in the embodiment of the present invention;

[0047] Figure 12 It is a schematic diagram of dividing the busbar area branch within the block in another embodiment of the present invention.

[0048] Description of the Reference Numerals:

[0049] 1 - Photovoltaic support; 2 - Clustering combination; 3 - Offset group; 4 - Complete bridge, 41 - First bridge section, 42 - Second bridge section; 5 - Busbar area branch; 6 - Block. Detailed Description of the Embodiment

[0050] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0051] It should be noted that in the XY coordinate axes provided in this article, the positive direction of the X-axis represents the right side, the negative direction of the X-axis represents the left side, the positive direction of the Y-axis represents the front side, and the negative direction of the Y-axis represents the rear side. At the same time, it should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here.

[0052] Combined with Figure 1 、 Figures 7 - 12 As shown, an embodiment of the present invention provides an automatic planning method for a photovoltaic array, including the following steps:

[0053] Step 100: Cluster according to one of the photovoltaic brackets 1, photovoltaic strings and pile foundations of the photovoltaic array to obtain a plurality of clustering combinations 2;

[0054] Step 200: Group the clustering combinations 2 to obtain a plurality of offset groups 3;

[0055] Step 300: Generate a first bridge section 41 within each offset group 3;

[0056] Step 400: Connect the first bridge sections 41 to form a complete bridge 4.

[0057] For the photovoltaic array of a photovoltaic power station installed in complex terrains such as mountains, since the photovoltaic brackets 1 and photovoltaic strings of the photovoltaic array need to be offset in a certain direction in combination with the local terrain, and the offset directions of the photovoltaic brackets 1 and photovoltaic strings in the photovoltaic array are not the same, the overall shape of the photovoltaic array is relatively complex. This method is suitable for automatically planning a photovoltaic array with a complex shape. Specifically, in step 100 of this method, the photovoltaic brackets 1 (or photovoltaic strings, pile foundations) in the photovoltaic array are clustered according to the arrangement of the photovoltaic brackets 1 (or photovoltaic strings, pile foundations) in the photovoltaic array, that is, the photovoltaic brackets 1 (or photovoltaic strings, pile foundations) are divided into multiple clustering combinations 2 by combining factors such as the spacing and offset direction of the photovoltaic brackets 1 (or photovoltaic strings, pile foundations), so as to conduct a preliminary planning for the square array with a complex shape. Subsequently, in step 200, according to the multiple clustering combinations 2 obtained in step 100, the clustering combinations 2 with the same slope or a relatively small difference in slope are grouped into an offset group 3, so that all the clustering combinations 2 obtained in step 100 are grouped into one or more offset groups 3, which is convenient for the subsequent planning of the cable tray and the busbar area. Then, in step 300, first determine the number of branch circuits 5 of the busbar area to be divided and the cable tray division ratio, and then, in combination with factors such as the number of row brackets in the offset group 3, according to the offset group 3 obtained in step 200, determine the number of the first cable tray segments 41 to be set in each offset group 3, and determine the setting positions of each first cable tray segment 41, so as to generate the corresponding first cable tray segments 41 in each offset group 3. Finally, in step 400, connect all the first cable tray segments 41. For example, take the first cable tray segment 41 of the offset group 3 closest to the box substation as the starting cable tray. One end of the starting cable tray is connected to the box substation, and the other end is connected to the nearest point of the first cable tray segment 41 of the adjacent offset group 3. The other end of the first cable tray segment 41 connected to the starting cable tray is also connected to the nearest point of the first cable tray segment 41 of the adjacent offset group 3, and the connection of all the first cable tray segments 41 in the photovoltaic array is completed in sequence, realizing the connection of all the first cable tray segments 41 in the photovoltaic array, so as to form a complete cable tray (denoted as the complete cable tray 4), that is, realizing the automatic planning of the cable tray in the square array with a complex shape.

[0058] In this way, the method first clusters the photovoltaic supports 1 (or photovoltaic strings, pile foundations) in the photovoltaic array to obtain multiple clustering combinations 2, which is convenient for subsequent grouping. Then, by grouping the clustering combinations 2, the clustering combinations 2 with the same or similar slopes are formed into offset groups 3, so that the multiple clustering combinations 2 are grouped into multiple offset groups 3, which is convenient for subsequent planning of the first bridge section 41 adapted to the slope of the offset group 3. Then, by generating the first bridge section 41 within each offset group 3, the first bridge section 41 adapted to each offset group 3 is obtained, that is, the slope of the first bridge section 41 is the same or similar to the slope of the offset group 3 (the slope of the clustering combinations 2 within the offset group 3). That is to say, the offset direction of the first bridge section 41 is the same or similar to that of the offset group 3, so that the first bridge section 41 generated within each offset group 3 can be smoothly installed on the pile foundation supporting the photovoltaic support 1, improving the convenience of the installation and construction of the first bridge section 41, and enabling the first bridge section 41 to conform to the actual construction wiring scenario, facilitating the smooth wiring of the cables of the photovoltaic strings on each photovoltaic support 1 within the offset group 3 through the corresponding first bridge section 41. Finally, by connecting and communicating the first bridge sections 41 of all offset groups 3 in the photovoltaic array, a complete bridge 4 is formed, so that the cables of various devices such as photovoltaic strings in the photovoltaic array can be smoothly connected to devices such as box transformers through the complete bridge 4. In this way, by comprehensively considering the arrangement of multiple offset directions of the photovoltaic supports 1 (or photovoltaic strings, pile foundations) in the photovoltaic array with complex shapes, the photovoltaic array is divided and grouped to generate a complete bridge 4 with multiple first bridge sections 41 having different offset directions, realizing the automatic planning of the photovoltaic array with complex shapes. Moreover, the method can effectively calculate the offset direction of the offset group 3 inside each photovoltaic array, obtain the internal offset characteristics of the photovoltaic array with complex shapes, and thus specifically generate bridges, busbar areas (introduced later) adapted to the local terrain in the offset groups 3 in each offset direction. The pertinence is strong, and each offset group 3 with different offset directions is suitable for independent calculation (planning), which can improve the efficiency, reliability and applicability of the method.

[0059] Optionally, as shown in Figure 1 and Figure 7 , step 100 includes:

[0060] Clustering according to the photovoltaic support 1 to obtain multiple clustering combinations 2 of the photovoltaic support 1.

[0061] Based on the fact that the photovoltaic support 1 is set on the pile foundation, the photovoltaic string is set on the photovoltaic support 1, and generally the photovoltaic support 1 is supported by multiple pile foundations. One or more photovoltaic strings are provided on one photovoltaic support 1. In this step, by planning the photovoltaic support 1, the corresponding calculation amount is reduced, and the automatic planning efficiency of the photovoltaic array is improved. Specifically, according to the arrangement of the photovoltaic supports 1 in the photovoltaic array, the photovoltaic supports 1 in the photovoltaic array are clustered, and the photovoltaic supports 1 are divided into multiple clustering combinations 2 by combining factors such as the spacing and offset direction of the photovoltaic supports 1, so as to perform a preliminary planning on the square array with a complex shape. In some embodiments, it may be to plan it by obtaining the drawing of the photovoltaic array (such as the layout drawing of the photovoltaic support 1, etc.) to facilitate the clear and intuitive planning of the corresponding photovoltaic array; among them, the drawing may be a paper drawing or an electronic drawing such as a CAD drawing.

[0062] Optionally, as shown in Figure 1 、 Figure 2 and Figure 7 , clustering is performed according to the photovoltaic support 1 to obtain multiple clustering combinations 2 of the photovoltaic support 1, and the specific steps are as follows:

[0063] Step 110: Determine the central point coordinates of all the photovoltaic supports 1 on the photovoltaic array.

[0064] In this step, it may be to establish a corresponding coordinate system according to the layout drawing of the photovoltaic support 1 and determine the coordinates of the central points of all the photovoltaic supports 1 on the photovoltaic array in this coordinate system for subsequent step operations.

[0065] Step 120: Determine the clustering radius according to the central point coordinates;

[0066] Step 130: Cluster the photovoltaic supports 1 according to the clustering radius to obtain multiple clustering combinations 2.

[0067] Specifically, according to the central point coordinates of the photovoltaic support 1 obtained in step 110, determine the clustering radius for clustering the photovoltaic support 1, and determine the clustering radius according to the clustering radius.

[0068] Exemplarily, first, according to the central point coordinates of all the photovoltaic supports 1, calculate the distances between the central points of the photovoltaic supports 1 in all adjacent rows longitudinally in the drawing, and construct a set (or matrix) of these distances. Subsequently, use the minimum value in this set (or matrix) plus a preset floating threshold as the first clustering radius (or clustering distance), and regard the photovoltaic supports 1 that satisfy the first clustering radius and are constructed based on a certain photovoltaic support 1 as a clustering combination 2. For example, take the central point of a certain photovoltaic support 1 (denoted as the first photovoltaic support 1) as the center of a circle, and use the first clustering radius as the radius to draw a circle. The new (or additional) photovoltaic supports 1 (denoted as the second photovoltaic support 1) whose central points are located inside and on the circle satisfy the first clustering radius; subsequently, take the central point of the second photovoltaic support 1 as the center of the circle, and use the first clustering radius as the radius to draw a circle. The new photovoltaic supports 1 (denoted as the third photovoltaic support 1) whose central points are located inside and on the circle satisfy the first clustering radius. Repeat this cycle, and regard the first photovoltaic support 1, the second photovoltaic support 1, the third photovoltaic support 1, etc. that satisfy the first clustering radius as a clustering combination 2; then, take a photovoltaic support 1 located outside this clustering combination 2 as the first photovoltaic support 1 and repeat the above steps to determine another clustering combination 2; until all the photovoltaic supports 1 in the photovoltaic array that satisfy the first clustering radius are divided into the corresponding clustering combinations 2. For the other photovoltaic supports 1 that are not divided into the above clustering combinations 2, based on a certain one of them, use the second smallest value in the above set (or matrix) plus the preset floating threshold as the second clustering radius, and continue to divide other clustering combinations 2. Repeat this cycle in turn, and traverse the clustering radii formed by all the values in the above set (or matrix) to perform clustering of the photovoltaic supports 1 until multiple clustering is completed and all the photovoltaic supports 1 are divided into the corresponding clustering combinations 2. Among them, the preset floating threshold can be set according to actual needs. In some embodiments, a set (or matrix) of the distances between the central points of the photovoltaic supports 1 in adjacent rows on a certain column of the photovoltaic array (the photovoltaic supports 1 in each row on this column are continuous and adjacent) is constructed to avoid excessive distance values.

[0069] Optionally, for the row division of the photovoltaic supports 1 in the photovoltaic array, it can be determined according to the abscissa of the central points of the photovoltaic supports 1 in the corresponding coordinate system. For example, the photovoltaic supports 1 with the same and similar abscissas of the central points are regarded as the photovoltaic supports 1 in the same row.

[0070] Optionally, as shown in combination with Figure 1 , Figure 3 , Figure 7 and Figure 8 Step 200 specifically includes the following steps:

[0071] Step 210: Determine the offset slope of each clustering combination 2 according to the central point coordinates and the clustering combination 2.

[0072] Specifically, under each clustering combination 2, according to the coordinates of the center points of the string, the slope of the line connecting the center points of each photovoltaic support 1 in the clustering combination 2 is obtained, and this slope is used as the offset slope of the clustering combination 2. Among them, when the center points of each photovoltaic support 1 in the clustering combination 2 are not on a straight line, the slopes of the lines connecting the center points of two longitudinally adjacent photovoltaic supports 1 can be determined in sequence, and the average value of these slopes is obtained as the offset slope of the clustering combination 2.

[0073] Step 220: Group the clustering combinations 2 according to the offset slope to obtain a plurality of offset groups 3.

[0074] Specifically, the clustering combinations 2 with the same slope or a relatively small difference in slope (i.e., similar slopes) are grouped into one offset group 3, so as to group a plurality of clustering combinations 2 into a plurality of offset groups 3, which is convenient for subsequent planning of the first bridge section 41 adapted to the slope of the offset group 3. In some embodiments, by setting a preset slope threshold (denoted as a), and the offset slope of a certain clustering combination 2 is denoted as k, then the clustering combinations 2 adjacent to this clustering combination 2 and with the offset slope value within (a + k, a - k) are grouped into the same offset group 3; among them, the preset slope threshold can be set according to the grouping accuracy requirements of the offset group 3. Exemplarily, as shown in Figure 7 、 Figure 8 shown, the clustering combinations 2 of the photovoltaic array are grouped to obtain Figure 8 two adjacent offset groups 3 before and after in

[0075] Optionally, as shown in Figure 1 、 Figure 4 、 Figure 9 and Figure 10 shown, step 300 specifically includes the following steps:

[0076] Step 310: Determine the bridge division ratio of the photovoltaic array and the number of branch circuits 5 in the busbar area.

[0077] Specifically, according to the bridge design requirements (such as the bridge division accuracy requirements), the corresponding bridge division ratio of each offset group 3 is set, where the value of the bridge division ratio ≤ 1, and the reciprocal of the value of the bridge division ratio is the setting quantity of the first bridge section 41 within the corresponding offset group 3. According to the busbar area design requirements (such as the voltage value or current value of the branch circuit 5 in the busbar area, etc.), the number of branch circuits 5 required for each offset group 3 (or the entire photovoltaic array) is determined (i.e., the quantity of the branch circuit 5 in the busbar area). In some embodiments, the number of branch circuits 5 in the entire photovoltaic array is not greater than the number of interfaces of the busbar box it is connected to.

[0078] Step 320: Determine the generation quantity of the first bridge section 41 of each offset group 3 according to the bridge division ratio and the number of branch circuits 5 in the busbar area.

[0079] In this step, first determine the generation quantity of the first bridge section 41 within the offset group 3. Specifically, first determine the row with the largest number of photovoltaic supports 1 within the offset group 3 and the number of photovoltaic supports 1 in that row. If the number of photovoltaic supports 1 in that row ≤ the bridge division ratio × the number of branch circuits 5 in the current collection area, then generate one first bridge section 41 within the offset group 3; if the bridge division ratio × the number of branch circuits 5 in the current collection area < the number of photovoltaic supports 1 in that row ≤ 2 × the bridge division ratio × the number of branch circuits 5 in the current collection area, then generate two bridges within the offset partition;...; if (n - 1) × the bridge division ratio × the number of branch circuits 5 in the current collection area < the number of photovoltaic supports 1 in that row ≤ n × the bridge division ratio × the number of branch circuits 5 in the current collection area, then generate n first bridge sections 41 within the offset group 3, where n is an integer; and so on until n × the bridge division ratio = 1, that is, until the number of photovoltaic supports 1 in that row = the number of branch circuits 5 in the current collection area. In this way, determine the generation quantity of the first bridge section 41 within the corresponding offset group 3 according to the number of photovoltaic supports 1 in the row with the largest number of photovoltaic supports 1 in the offset group 3, the bridge division ratio within the offset group 3, and the number of branch circuits 5 in the current collection area, ensuring that each first bridge section 41 can be successfully divided and ensuring that there are photovoltaic supports 1 in each branch circuit 5 of the current collection area, thus ensuring the smooth implementation of this method.

[0080] Step 330: According to the generation quantity, divide each offset group 3 into blocks 6 and determine the generation positions of the first bridge sections 41 on each block 6.

[0081] After determining the number of generated first bridge segments 41 within each offset group 3, first divide the offset group 3 into blocks 6 according to the number of generated first bridge segments 41 within the offset group 3, and then determine the generation positions of the first bridge segments 41 within each block 6. For ease of description, the following uses an offset group 3 as an example for description. The number of generated first bridge segments 41 in this offset group 3 is denoted as b. Then, divide the offset group 3 into b blocks 6 according to the slope of the offset group 3 starting from the row with the largest number of photovoltaic supports 1 in the offset group 3, so as to facilitate the setting of a first bridge segment 41 in each block 6. Among them, when dividing the offset group 3 into b blocks 6, perform an average division according to the number of photovoltaic supports 1 in the row with the largest number of photovoltaic supports 1 in the offset group 3 according to the slope of the offset group 3. To avoid the situation where a column of photovoltaic supports 1 with the slope of the offset group 3 in a certain block 6 is simultaneously divided into two blocks 6, when the above situation occurs, perform the division in the following manner: Denote the block 6 with the larger number of photovoltaic supports 1 (or photovoltaic strings) among the two blocks 6 on the left and right sides of the dividing line as the first block 6, and the other as the second block 6. Then, classify a column of photovoltaic supports 1 with the slope of the offset group 3 located on the dividing line into the second block 6, thereby obtaining a new second block 6. Subsequently, determine the generation positions of the first bridge segments 41 within each block 6 according to the first block 6 and the new second block 6. Thereafter, determine the generation positions of the first bridge segments 41 within each block 6. The following uses determining the generation position of the first bridge segment 41 within a certain block 6 as an example for illustration. When the number of photovoltaic supports 1 in the row with the largest number of photovoltaic supports 1 in this block 6 is odd, the slope of the first bridge segment 41 within this block 6 is equal (or close) to the slope of the offset group 3, and the first bridge segment 41 preferably passes through the pile foundation of the photovoltaic support 1 at the middle position of the row with the largest number of photovoltaic supports 1 in this block 6. When the number of photovoltaic supports 1 in the row with the largest number of photovoltaic supports 1 in this block 6 is even, denote the number of photovoltaic supports 1 in the row with the largest number of photovoltaic supports 1 in this block 6 as 2c, that is, there are 2c columns of photovoltaic supports 1 with the slope of the offset group 3 in this block 6. If the total number of photovoltaic supports 1 (or photovoltaic strings) in the left c columns of photovoltaic supports 1 in this block 6 is greater than the total number of photovoltaic supports 1 (or photovoltaic strings) in the right c columns of photovoltaic supports 1, then set the first bridge segment 41 on the pile foundation of a column of photovoltaic supports 1 on the right side of the left c columns of photovoltaic supports 1, and the slope of the first bridge segment 41 is equal (or close) to the slope of the offset group 3 and is set on the pile foundation of this column of photovoltaic supports 1; similarly, if the total number of photovoltaic supports 1 (or photovoltaic strings) in the right c columns of photovoltaic supports 1 in this block 6 is greater than the total number of photovoltaic supports 1 (or photovoltaic strings) in the left c columns of photovoltaic supports 1, then set the first bridge segment 41 on the pile foundation of a column of photovoltaic supports 1 on the left side of the right c columns of photovoltaic supports 1, and the slope of the first bridge segment 41 is equal (or close) to the slope of the offset group 3 and is set on the pile foundation of this column of photovoltaic supports 1.In this way, the installation position of the first bridge section 41 in each block 6 is determined. On the one hand, it is ensured that the first bridge section 41 is set on the pile foundation of a certain column of the photovoltaic supports 1. On the other hand, the distances from the equipment such as photovoltaic strings on both sides of the photovoltaic supports 1 in this column in this block 6 to the first bridge section 41 are corresponding, which is convenient for the wiring of equipment such as photovoltaic strings.

[0082] Step 340: Generate the first bridge section 41 according to the generated quantity and the generated position.

[0083] Specifically, according to the generated quantity and the generated position of the first bridge section 41 on each offset group 3 obtained in step 320, the corresponding first bridge section 41 is generated within each offset group 3. By generating the first bridge section 41 within each offset group 3, the first bridge section 41 adapted to each offset group 3 is obtained, that is, the slope of the first bridge section 41 is the same as or similar to that of the offset group 3. That is to say, the offset direction of the first bridge section 41 is the same as or similar to that of the offset group 3, so that the first bridge section 41 generated within each offset group 3 can be smoothly set on the pile foundation supporting the photovoltaic supports 1, improving the convenience of the installation and construction of the first bridge section 41, and enabling the first bridge section 41 to conform to the actual construction wiring scenario, facilitating the smooth wiring of the cables of the photovoltaic strings on each photovoltaic support 1 within the offset group 3 through the corresponding first bridge section 41.

[0084] Exemplarily, in combination with Figure 9 、 Figure 10 As shown, the bridge division ratios of two adjacent offset groups 3 before and after are set to 1 / 2 and 1 respectively, that is, two first bridge sections 41 are set within the previous offset group 3, and one first bridge section 41 is set within the subsequent offset group 3. Correspondingly, the previous offset group 3 is divided into two adjacent blocks 6 on the left and right. The first bridge section 41 of the left block 6 is set in its third column (counting from left to right, the same hereinafter), and the first bridge section 41 of the right block 6 is set in its third column; there is one first bridge section 41 within the subsequent offset group 3, then it serves as a block 6 by itself, and one first bridge section 41 is set in the third column of the block 6.

[0085] Optionally, in combination with Figure 11 As shown, step 400 includes:

[0086] Generate the second bridge section 42 connecting all the first bridge sections 41 according to the generated position. The first bridge section 41 and the second bridge section 42 form a complete bridge 4.

[0087] Specifically, by setting the second bridge section 42 to connect all the first bridge sections 41, all devices such as photovoltaic strings on the photovoltaic array can be connected to the corresponding devices (such as busbar boxes, box transformers, etc.) via the first bridge sections 41 and the second bridge section 42; among them, the second bridge section 42 and the first bridge section 41 can adopt the same structure, material, etc. Exemplarily, taking the first bridge section 41 of the offset group 3 closest to the box transformer as the starting bridge, one end of the starting bridge is connected to the box transformer, and the other end is T-connected horizontally and vertically to the nearest point of the first bridge section 41 of the adjacent offset group 3. The other end of the first bridge section 41 connected to the starting bridge is also T-connected horizontally and vertically to the nearest point of the first bridge section 41 of the adjacent offset group 3. In this way, the connection of all the first bridge sections 41 in the photovoltaic array is completed in sequence, realizing the connection of all the first bridge sections 41 in the photovoltaic array, thereby forming the complete bridge 4, that is, realizing the automatic planning of the bridge in the complex-shaped array. Exemplarily, in combination with Figure 10 , Figure 11 as shown, the second bridge section 42 is generated in the above manner to connect all the first bridge sections 41, thereby forming the complete bridge 4.

[0088] Optionally, in combination with Figure 5 , Figure 12 as shown, after each offset group 3 is divided into blocks 6, the method further includes the following steps:

[0089] Step 380: Determine the number of photovoltaic strings of each busbar area branch 5 according to the number of busbar area branches 5.

[0090] Step 390: Divide the busbar area branches 5 in each block 6 according to the number of photovoltaic strings.

[0091] Specifically, after each offset group 3 is divided into blocks 6, first through step 380, according to the number of busbar area branches 5, determine the number of photovoltaic strings required for each busbar area branch 5 to meet the corresponding voltage, current and other requirements. Then through step 390, according to the number of photovoltaic strings determined in step 380, divide the busbar area branches 5 with that number of photovoltaic strings in each block 6. In some embodiments, the number of photovoltaic strings of a certain busbar area branch 5 in some blocks 6 is less than the number of photovoltaic strings determined in step 380.

[0092] Optionally, in combination with Figure 12 as shown, step 390 includes:

[0093] According to the number of photovoltaic strings, divide the photovoltaic strings in an S shape in each block 6 to obtain the busbar area branches 5.

[0094] To ensure that the PV strings of each branch 5 in the busbar area are distributed as evenly as possible on the left and right of the bridge section of this block 6, and to facilitate the division of the branches 5 in the busbar area, in this step, the PV strings are divided in an S shape within each block 6 to obtain the branches 5 of the busbar area that meet the corresponding number of PV strings. Exemplarily, taking the division of the branches 5 in the busbar area of a certain block 6 as an example to illustrate the S-shaped division, in the order from front to back (i.e., along the reverse direction of the Y axis), the division starts from the first row. Since the relative position of the PV strings in the first row in this block 6 is biased towards the left side of this block 6, the division starts from the right side to the leftmost in the first row (such as the first row in the positive direction of the Y axis in block 6), starts from the left side to the rightmost in the second row, starts from the right side to the leftmost in the third row, starts from the left side to the rightmost in the second row, and so on, cycling in turn until the number of divisions meets the number of PV strings determined in step 380, that is, the PV strings obtained by the division are classified into a branch 5 of the busbar area. For the remaining PV strings in this block 6, the division of the branches 5 of the busbar area continues in the above manner. Among them, when dividing the branches 5 of the busbar area, the division direction is determined according to the relative position of the PV strings in the first row to be divided in this block 6. For example, when the relative position of the PV strings in the first row to be divided in this block 6 is biased to the left, the first row is divided from the right side to the leftmost; when the relative position of the PV strings in the first row to be divided in this block 6 is biased to the right, the first row is divided from the left side to the rightmost; when the relative position of the PV strings in the first row to be divided in this block 6 is centered (such as the number of PV strings on the left and right of the bridge section of this block 6 in the first row to be divided is equal), the first row can be divided from left to right or from right to left. Figure 12 (such as the first row in the positive direction of the Y axis in

[0095] In addition, if the number of PV strings in a certain block 6 of a certain offset group 3 is less than the number of PV strings determined in step 380, the geometric center of this block 6 can be obtained first, and the block 6 of this offset group 3 closest to the geometric center of this block 6 can be found, and this block 6 is merged into the closest block 6, and then the branches 5 of the busbar area are divided separately for each block 6 according to the above S-shaped division method.

[0096] Exemplarily, as shown in Figure 12 , the number of branches 5 of the busbar area of the PV array is set to nine, and the number of PV strings in a single branch 5 of the busbar area is ten. According to the S-shaped division method, the branches 5 of the busbar area are divided separately for each of the three blocks 6 shown in Figure 12 , and finally nine branches 5 of the busbar area shown in Figure 12 are obtained.

[0097] In this way, by continuously dividing in an S shape within each block 6 to generate the branches 5 of the busbar area, it can avoid generating irregular and vertically long strip-shaped busbar areas, and can ensure the continuity between the branches 5 of each busbar area. Reducing the vertically long strip-shaped branches 5 of the busbar area can reduce the usage of bridge sections, save project costs and facilitate construction.

[0098] Combined Figure 6 As shown, another embodiment of the present invention provides an automatic planning device for a photovoltaic array, including:

[0099] A clustering unit 10, configured to perform clustering according to the photovoltaic array to obtain a plurality of clustering combinations 2;

[0100] A grouping unit 20, configured to group the clustering combinations 2 to obtain a plurality of offset groups 3;

[0101] A planning unit 30, configured to generate a first bridge section 41 within each of the offset groups 3; and to connect the first bridge sections 41 to form a complete bridge 4.

[0102] Optionally, to reduce the corresponding computational amount and improve the automatic planning efficiency of the photovoltaic array, the clustering unit 10 is configured to perform clustering according to the photovoltaic support 1 to obtain a plurality of clustering combinations 2 regarding the photovoltaic support 1. Specifically, the clustering unit 10 is configured to determine the center point coordinates of all the photovoltaic supports 1 on the photovoltaic array according to the corresponding drawings of the photovoltaic array; to determine the clustering radius according to the center point coordinates; and to cluster the photovoltaic supports 1 according to the clustering radius to obtain a plurality of clustering combinations 2.

[0103] Optionally, the grouping unit 20 is specifically configured to determine the offset slope of each clustering combination 2 according to the center point coordinates and the clustering combination; and to group all the clustering combinations 2 according to the offset slope to obtain a plurality of offset groups 3.

[0104] Optionally, the planning unit 30 includes a first bridge section generation subunit and a connection subunit. Among them, the first bridge section generation subunit is configured to determine the bridge division ratio of the photovoltaic array and the number of branch circuits 5 in the current collection area; to determine the generation quantity of the first bridge section 41 of each offset group 3 according to the bridge division ratio and the number of branch circuits 5 in the current collection area; to divide each offset group 3 into blocks 6 according to the generation quantity, and to determine the generation position of the first bridge section 41 on each block 6; and to generate the first bridge section 41 according to the generation quantity and the generation position. The connection subunit is configured to generate a second bridge section 42 connecting all the first bridge sections 41 according to the generation position of the first bridge section 41, and the first bridge section 41 and the second bridge section 42 constitute the complete bridge 4.

[0105] Optionally, the automatic planning device for the photovoltaic array further includes a current collection area branch circuit division unit, and the current collection area branch circuit division unit is configured to determine the number of photovoltaic strings of each current collection area branch circuit 5 according to the number of branch circuits 5 in the current collection area; and to divide the current collection area branch circuit 5 within each block 6 according to the number of photovoltaic strings. Specifically, the current collection area branch circuit division unit is configured to perform an S-shaped division on the photovoltaic strings within each block 6 according to the number of photovoltaic strings to obtain the current collection area branch circuit 5.

[0106] In this way, through the cooperation of structures such as the clustering unit 10, the grouping unit 20, the planning unit 30, and the branch division unit of the busbar area, the automatic planning device of the photovoltaic array executes the automatic planning method of the photovoltaic array, ensuring that this method can be executed smoothly and stably. By integrating the layout of the photovoltaic support 1 (or photovoltaic string, pile foundation), it effectively calculates the offset direction of the offset group 3 inside each photovoltaic array, obtains the internal offset characteristics of the complex-shaped array, and thus specifically generates bridges, busbar areas (introduced later) that adapt to the local terrain in the offset groups 3 in each offset direction. This is highly targeted and enables the offset groups 3 with different offset directions to be suitable for individual calculation (planning), which can improve the efficiency, reliability, and applicability of this method.

[0107] Another embodiment of the present invention provides an electronic device, including a computer-readable storage medium storing a computer program and a processor. When the computer program is read and run by the processor, it implements the above-mentioned automatic planning method of the photovoltaic array.

[0108] In this embodiment, through the cooperation of structures such as the processor and the computer-readable storage medium of the electronic device (such as a computer, etc.), the automatic planning method of the photovoltaic array is executed, ensuring that this method can be executed smoothly and stably and meeting the corresponding requirements.

[0109] It should be noted that in essence, or the part that contributes to the prior art, or all or part of this method can be embodied in the form of a software product. This computer software product is stored in a computer-readable storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method of the embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0110] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. An automatic planning method for a photovoltaic array, characterized in that Including: Clustering one of the photovoltaic brackets (1), photovoltaic strings, and pile foundations of the photovoltaic array to obtain a plurality of clustering combinations (2); Grouping the clustering combinations (2) to obtain a plurality of offset groups (3); Generating a first bridge section (41) within each of the offset groups (3); Connecting the first bridge sections (41) to form a complete bridge (4); Wherein, the generating the first bridge section (41) within each of the offset groups (3) includes: Determining the bridge division ratio of the photovoltaic array and the number of branch circuits (5) in the current collection area; Based on the bridge division ratio and the number of branch circuits (5) in the current collection area, determining the generation quantity of the first bridge section (41) for each of the offset groups (3); According to the generation quantity, dividing each of the offset groups (3) into blocks (6), and determining the generation positions of the first bridge section (41) on each of the blocks (6); Generating the first bridge section (41) according to the generation quantity and the generation positions.

2. The automatic planning method for a photovoltaic array according to claim 1, characterized in that, The clustering one of the photovoltaic brackets (1), photovoltaic strings, and pile foundations of the photovoltaic array to obtain a plurality of clustering combinations (2) includes: Clustering according to the photovoltaic brackets (1) to obtain a plurality of the clustering combinations (2) regarding the photovoltaic brackets (1).

3. The automatic planning method for a photovoltaic array according to claim 2, characterized in that, The clustering according to the photovoltaic brackets (1) to obtain a plurality of the clustering combinations (2) regarding the photovoltaic brackets (1) includes: Determining the center point coordinates of all the photovoltaic brackets (1) on the photovoltaic array; Determining the clustering radius according to the center point coordinates; Clustering the photovoltaic brackets (1) according to the clustering radius to obtain a plurality of the clustering combinations (2).

4. The automatic planning method for a photovoltaic array according to claim 3, characterized in that, The grouping the clustering combinations (2) to obtain a plurality of offset groups (3) includes: Determining the offset slope of each of the clustering combinations (2) according to the center point coordinates and the clustering combinations (2); Grouping the clustering combinations (2) according to the offset slope to obtain a plurality of the offset groups (3).

5. The automatic planning method for a photovoltaic array according to any one of claims 1 to 4, characterized in that The connecting the first bridge sections (41) to form a complete bridge (4) includes: Generating a second bridge section (42) connecting all the first bridge sections (41) according to the generation positions, and the first bridge section (41) and the second bridge section (42) constitute the complete bridge (4).

6. The automatic planning method for a photovoltaic array according to any one of claims 1-4, characterized in that, After dividing each of the offset groups (3) into blocks (6), the automatic planning method of the photovoltaic array further includes: Determining the number of photovoltaic strings of each of the branch circuits (5) in the current collection area according to the number of branch circuits (5) in the current collection area; Dividing the branch circuits (5) in the current collection area within each of the blocks (6) according to the number of photovoltaic strings.

7. The automatic planning method of the photovoltaic array according to claim 6, wherein, The dividing the branch circuits (5) in the current collection area within each of the blocks (6) according to the number of photovoltaic strings includes: Performing an S-shaped division on the photovoltaic strings within each of the blocks (6) according to the number of photovoltaic strings to obtain the branch circuits (5) in the current collection area.

8. An automatic planning device for a photovoltaic array, characterized in that, Including: A clustering unit (10) for clustering according to the photovoltaic array to obtain a plurality of clustering combinations (2); A grouping unit (20) for grouping the clustering combinations (2) to obtain a plurality of bias groups (3); A planning unit (30) for generating a first bridge section (41) within each of the bias groups (3); and for connecting the first bridge sections (41) to form a complete bridge (4); Wherein, generating the first bridge section (41) within each of the bias groups (3) includes: Determining the bridge division ratio of the photovoltaic array and the number of branch circuits (5) in the busbar area; Determining the generation quantity of the first bridge section (41) of each bias group (3) according to the bridge division ratio and the number of branch circuits (5) in the busbar area; Dividing each bias group (3) into blocks (6) according to the generation quantity, and determining the generation position of the first bridge section (41) on each block (6); Generating the first bridge section (41) according to the generation quantity and the generation position.

9. An electronic device, characterized in that, It includes a computer-readable storage medium storing a computer program and a processor. When the computer program is read and run by the processor, it implements the automatic planning method of the photovoltaic array as described in any one of claims 1-7.

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