Photovoltaic panel installation positioning method and system based on digital twinning
Patent Information
- Application Number
- CN202611390235.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-09
- Publication Date
- 2026-10-09
AI Technical Summary
由于山坡地势起伏，相邻子区之间可能存在纵向、横向以及对角线方向的遮挡情况，导致在安装定位过程中，无法针对主要遮挡源进行有针对性的调整，即使对部分子区进行倾斜度调整，也可能因未考虑全面而引发新的遮挡问题，不仅无法有效减少遮挡，还可能对周围其他光伏安装子区造成不利影响，进一步降低了整个光伏安装区域的光照利用效率和发电稳定性
1.本发明对当前山坡安装区域内的光伏安装子区朝向进行分析，确定当前子区朝向，并根据当前子区朝向，构建倾斜度安装数据库，选取倾斜度安装数据库内的安装倾斜度，根据安装倾斜度，利用数字孪生技术对光伏安装区域内每个光伏安装子区进行模拟安装，并结合光伏安装区域内光伏安装子区的历史有效光照数据进行分析，确定单元安装倾斜度，使得在光伏安装子区内的光伏板无论是从被照射面积还是被照射时间上，都能更充分地接收太阳光照，直接提高了光伏板对光照资源的利用效率。
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Figure CN122886248A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic panel installation and positioning technology, specifically to a photovoltaic panel installation and positioning method and system based on digital twins. Background Technology
[0002] Among various photovoltaic power generation scenarios, hillside terrain is a common choice for photovoltaic panel installation due to its unique geographical conditions. However, hillside terrain is complex and varied, with significant differences in slope, orientation, and other factors in different areas, which brings many challenges to the installation and positioning of photovoltaic panels.
[0003] The lack of precise orientation analysis for each photovoltaic installation sub-area on the hillside makes it difficult to construct a scientifically sound tilt database based on the actual orientation of each sub-area. This results in the inability to select the most suitable installation tilt angle based on the sub-area's orientation during subsequent installation, preventing the photovoltaic panels from fully receiving sunlight and reducing the efficiency of solar resource utilization.
[0004] Furthermore, in hilly terrain, shading between adjacent photovoltaic (PV) installation sub-areas is also a significant factor affecting the power generation efficiency of PV panels. Due to the undulating terrain, adjacent sub-areas may experience shading in the longitudinal, lateral, and diagonal directions. This makes it impossible to make targeted adjustments for the main sources of shading during installation and positioning. Even if the tilt of some sub-areas is adjusted, new shading problems may arise due to a lack of comprehensive consideration. This not only fails to effectively reduce shading but may also adversely affect other surrounding PV installation sub-areas, further reducing the overall solar utilization efficiency and power generation stability of the PV installation area.
[0005] Therefore, the present invention provides a photovoltaic panel installation and positioning method and system based on digital twins. Summary of the Invention
[0006] The purpose of this invention is to provide a photovoltaic panel installation and positioning method and system based on digital twins to solve the aforementioned background problems.
[0007] The objective of this invention can be achieved through the following technical solutions: A photovoltaic panel installation and positioning method based on digital twins, comprising: Analyze the orientation of the photovoltaic installation sub-areas within the current hillside installation area, determine the current sub-area orientation, and construct a tilt installation database; Based on the installation tilt in the tilt database, digital twin technology is used to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area. The historical effective sunlight data of the photovoltaic installation sub-area within the photovoltaic installation area is then analyzed to determine the unit installation tilt. Adjacent photovoltaic installation areas include diagonally adjacent, longitudinally adjacent, and laterally adjacent photovoltaic installation sub-areas; Set a simulated illumination test cycle, and use digital twin technology to simulate the test of photovoltaic panels in each photovoltaic installation sub-area based on historical effective illumination data. Also, perform adjacent photovoltaic shading analysis on photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas. By combining the location of the main photovoltaic shading sub-area with the location of other photovoltaic installation sub-areas around the photovoltaic shading analysis sub-area, the upper and lower limits of the tilt adjustment range are determined.
[0008] As a further aspect of the present invention, the process of determining the current sub-region orientation and constructing the tilt installation database is as follows: The current hillside installation area is divided into several photovoltaic installation sub-areas with equal area. The center point of each photovoltaic installation sub-area is used as the sub-area analysis point. The normal direction corresponding to each sub-area analysis point is used as the sub-area normal direction. The orientation of the current sub-area is determined based on the sub-area normal direction. Based on the current sub-area orientation, the installation tilt of the photovoltaic installation sub-areas is selected from multiple historical photovoltaic installation cycles and sorted in chronological order to construct a tilt installation database.
[0009] As a further aspect of the present invention, the simulated installation operation is performed on each photovoltaic installation sub-area within the photovoltaic installation area as follows: Select any installation tilt from the tilt installation database as the current tilt to be determined for the photovoltaic installation sub-area, set the simulated light monitoring cycle, divide the simulated light monitoring cycle into several simulated light monitoring periods, and simulate the installation of photovoltaic panels in the photovoltaic installation sub-area.
[0010] As a further aspect of the present invention, the process for determining the unit installation tilt angle is as follows: The historical effective solar radiation data of the photovoltaic installation sub-area within the photovoltaic installation area is analyzed. The effective irradiated area ratio is calculated by comparing the area of the photovoltaic panels in the photovoltaic installation sub-area that is irradiated by the simulated sun during the simulated light monitoring period with the area of the photovoltaic panels themselves. The average of these ratios is then calculated to obtain the mean effective irradiated area ratio. The effective irradiation time ratio is calculated by comparing the time the photovoltaic panels in the photovoltaic installation sub-area are irradiated by simulated sunlight during the simulated irradiation monitoring period with the duration of the simulated irradiation monitoring period. The average of these ratios is then calculated to obtain the mean effective irradiation time ratio. The average effective irradiation area ratio and the average effective irradiation time ratio are summed to obtain the effective photovoltaic irradiation screening value. The current tilt angle corresponding to the maximum effective photovoltaic irradiation screening value is selected as the unit installation tilt angle.
[0011] As a further aspect of the present invention, the process of simulating testing the photovoltaic panels in each photovoltaic installation sub-area is as follows: Arbitrarily select a photovoltaic installation sub-area as the photovoltaic shading analysis sub-area, divide the simulated illumination test cycle into several simulated illumination test periods, obtain the effective illumination area of the photovoltaic panel in the photovoltaic shading analysis sub-area during each simulated illumination period, and calculate the difference between the effective illumination area and the area of the photovoltaic panel itself. After taking the absolute value, the ineffective illumination area is obtained.
[0012] As a further aspect of the present invention, the process of performing adjacent photovoltaic shading analysis on photovoltaic panels within adjacent photovoltaic installation sub-regions is as follows: Extract the vertically adjacent, horizontally adjacent, and diagonally adjacent photovoltaic installation sub-regions respectively. Using the current simulated solar illumination angle, obtain the overlapping area between the vertically adjacent, horizontally adjacent, and diagonally adjacent photovoltaic installation sub-regions and the photovoltaic shading analysis sub-regions, respectively, as the vertically adjacent photovoltaic overlapping area, horizontally adjacent photovoltaic overlapping area, and diagonally adjacent photovoltaic overlapping area. The overlapping area ratios between the longitudinal adjacent photovoltaic overlapping area, the transverse adjacent photovoltaic overlapping area, and the diagonal adjacent photovoltaic overlapping area and the ineffective illumination area are obtained respectively, and are used as the longitudinal adjacent overlapping area, transverse adjacent overlapping area, and diagonal adjacent overlapping area.
[0013] As a further aspect of the present invention, the screening process for the main photovoltaic shading sub-regions is as follows: The shading analysis area is obtained by summing and averaging the longitudinal-to-adjacent ratios of the overlapping areas during each simulated lighting test period. The occlusion analysis area is obtained by summing and averaging the horizontal adjacent ratios of the overlapping areas during each simulated lighting test period. The occlusion analysis area is obtained by summing and averaging the overlapping areas of the diagonal adjacent ratios within each simulated illumination test period. The adjacent photovoltaic installation area corresponding to the largest shading analysis area is selected as the main photovoltaic shading sub-region.
[0014] As a further aspect of the present invention, the process for obtaining the lower limit value within the tilt adjustment range is as follows: Taking the main photovoltaic shading sub-area as the longitudinally adjacent photovoltaic installation sub-area as an example, the shading height is obtained... The terrain elevation difference, longitudinal spacing, and illumination angle between the photovoltaic shading analysis sub-region and the longitudinally adjacent photovoltaic installation sub-region are obtained. These are then substituted into Formula 2. By combining Formula 1 and Formula 2, the lower limit value within the tilt adjustment range is obtained. .
[0015] As a further aspect of the present invention, the process for obtaining the upper limit value within the tilt adjustment range is as follows: Extract the photovoltaic shading analysis sub-region longitudinally and then the photovoltaic installation sub-region, and obtain the longitudinal distance between the longitudinally rear photovoltaic installation sub-region and the photovoltaic shading analysis sub-region as . By combining Formula 4 and working backwards to Formula 5, we can obtain the upper limit of the tilt adjustment range. .
[0016] A photovoltaic panel installation and positioning system based on digital twins includes the following modules: Sub-area orientation analysis module: Analyzes the orientation of photovoltaic installation sub-areas within the current hillside installation area, determines the current sub-area orientation, and constructs a tilt installation database; Sub-area tilt determination module: Based on the installation tilt in the tilt database, digital twin technology is used to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area, and the historical effective sunlight data of the photovoltaic installation sub-area within the photovoltaic installation area is analyzed to determine the unit installation tilt. Adjacent photovoltaic installation areas include diagonally adjacent, longitudinally adjacent, and laterally adjacent photovoltaic installation sub-areas; Main shading screening module: Set the simulated light test cycle, use digital twin technology to simulate the test of photovoltaic panels in each photovoltaic installation sub-area based on historical effective light data, and perform adjacent photovoltaic shading analysis on photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas; Tilt Range Adjustment Module: By combining the location of the main photovoltaic shading sub-area with the location of other photovoltaic installation sub-areas around the photovoltaic shading analysis sub-area, the upper and lower limits of the tilt range are determined.
[0017] The beneficial effects of this invention are as follows: 1. This invention analyzes the orientation of photovoltaic installation sub-areas within the current hillside installation area, determines the current sub-area orientation, and constructs a tilt installation database based on the current sub-area orientation. It selects installation tilt values from the tilt installation database and uses digital twin technology to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area based on these tilt values. Furthermore, it analyzes historical effective sunlight data for each photovoltaic installation sub-area within the photovoltaic installation area to determine the unit installation tilt value. This ensures that the photovoltaic panels within the photovoltaic installation sub-area receive more sunlight, both in terms of the area and duration of illumination, directly improving the utilization efficiency of solar resources by the photovoltaic panels.
[0018] 2. This invention sets a simulated illumination test cycle and uses digital twin technology to simulate the photovoltaic panels in the overall photovoltaic installation area based on historical effective illumination data. It also performs adjacent photovoltaic shading analysis on photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas. Based on the shading analysis area of the main photovoltaic shading sub-areas in each simulated illumination period, the tilt adjustment range is obtained. The tilt adjustment operation is performed on the photovoltaic shading analysis sub-areas. After identifying the main photovoltaic shading sub-areas, the photovoltaic shading analysis sub-areas are adjusted according to the tilt adjustment range. This can effectively reduce shading from adjacent photovoltaic installation sub-areas and also prevent shading of other surrounding photovoltaic installation sub-areas after the photovoltaic shading analysis sub-areas are adjusted. Attached Figure Description
[0019] The invention will now be further described with reference to the accompanying drawings.
[0020] Figure 1 This is a flowchart of the steps of a photovoltaic panel installation and positioning method based on digital twins according to the present invention; Figure 2 This is a module diagram of a photovoltaic panel installation and positioning system based on digital twins in this invention. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0022] Example 1
[0023] like Figures 1-2 As shown in the figure, a photovoltaic panel installation and positioning method based on digital twins according to an embodiment of the present invention includes the following steps: Step 1: Analyze the orientation of the photovoltaic installation sub-areas within the current hillside installation area, determine the current sub-area orientation, and construct a tilt installation database based on the current sub-area orientation; In some embodiments, the current hillside installation area is divided into several photovoltaic installation sub-areas with equal area; The center point within the photovoltaic installation sub-region is taken as the sub-region analysis point, and the normal direction corresponding to each sub-region analysis point is taken as the sub-region normal direction. The orientation of the current sub-region is analyzed based on the sub-region normal direction, as follows: For example, if the normal direction of the sub-area within the photovoltaic installation sub-area is due south, then the current sub-area orientation is due south; If the normal direction of the sub-area within the photovoltaic installation sub-area is southeast, then the current sub-area orientation is southeast. Based on the current sub-area orientation, the installation tilt of photovoltaic installation sub-areas is selected from multiple historical photovoltaic installation cycles and sorted in chronological order to construct a tilt installation database; It should be noted that the historical photovoltaic installation cycle refers to the time taken when photovoltaic installation was carried out in the previous photovoltaic installation sub-area, based on the tilt of the photovoltaic panels according to the orientation of the corresponding sub-area in the past. Step 2: Based on the installation tilt in the tilt database, simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area using digital twin technology, and analyze the historical effective sunlight data of the photovoltaic installation sub-areas within the photovoltaic installation area to determine the unit installation tilt. It should be noted that historical effective sunshine data refers to the amount of sunshine in the photovoltaic installation sub-area in the past; In some embodiments, an installation tilt is arbitrarily selected from the tilt installation database as the current tilt to be determined corresponding to the photovoltaic installation sub-area, and the photovoltaic installation panels in the photovoltaic installation sub-area are simulated to be installed based on the current tilt to be determined. Set a simulated light monitoring cycle and divide the simulated light monitoring cycle into several simulated light monitoring periods of equal duration. For example, the area of the photovoltaic panels in the photovoltaic installation sub-area that is irradiated by simulated sunlight during the simulated light monitoring period is taken as the effective irradiated area, and the ratio of this area to the area of the photovoltaic panels themselves is calculated to obtain the effective irradiated area ratio. The mean effective irradiated area ratio is obtained by summing and averaging the effective irradiated area ratios within each simulated illumination monitoring period. The effective irradiation time is the time that the photovoltaic panels in the photovoltaic installation sub-area are irradiated by the simulated sun during the simulated irradiation monitoring period. The effective irradiation time ratio is calculated by comparing the effective irradiation time ratio with the duration of the simulated irradiation monitoring period. The mean of the effective irradiation time ratio is calculated by summing the effective irradiation time ratios within each simulated light monitoring period. The effective photovoltaic irradiation screening value is obtained by summing the average effective irradiation area ratio and the average effective irradiation time ratio. Understandably, the effective photovoltaic irradiation screening value represents the overall situation of photovoltaic panels receiving solar radiation under simulated installation conditions within a set simulated illumination monitoring period. This is reflected from both the perspective of the area of the photovoltaic panel being irradiated (average effective irradiation area ratio) and the perspective of the time the photovoltaic panel is irradiated (average effective irradiation time ratio). Specifically, if the effective photovoltaic irradiation screening value is large, it indicates that within the analyzed photovoltaic installation sub-area, after installing the photovoltaic panels with the current tilt angle to be determined as the photovoltaic panel installation tilt angle, the effective utilization rate of solar radiation resources by the photovoltaic panels is high within the simulated illumination period. If the effective photovoltaic irradiation screening value is small, it indicates that within the analyzed photovoltaic installation sub-area, after installing the photovoltaic panels with the current tilt angle to be determined as the photovoltaic panel installation tilt angle, the effective utilization rate of solar radiation resources by the photovoltaic panels is low within the simulated illumination period. Compare the effective photovoltaic irradiance screening values corresponding to all current tilt angles to be determined within the photovoltaic installation sub-area, and select the current tilt angle corresponding to the largest effective photovoltaic irradiance screening value as the unit installation tilt angle. It should be noted that the significance of determining the unit installation tilt is that by selecting the installation tilt with the largest effective photovoltaic irradiation screening value as the unit installation tilt, it means that under this tilt, the photovoltaic panel can receive more sunlight in the simulated irradiation cycle, both in terms of the irradiated area and the irradiation time, which directly improves the utilization efficiency of the photovoltaic panel for solar resources. In the process of determining the installation tilt of the unit, various installation tilts can be simulated, compared and analyzed to fully understand the impact of different tilts on the performance of photovoltaic panels. This provides rich data support for the optimization of the installation scheme, and installers can choose the optimal installation scheme according to the actual situation. The specific solution in this embodiment is as follows: Analyze the orientation of the photovoltaic installation sub-areas within the current hillside installation area to determine the current sub-area orientation. Based on the current sub-area orientation, construct a tilt installation database, select the installation tilt from the tilt installation database, and use digital twin technology to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area based on the installation tilt. Combine this with the analysis of historical effective sunlight data of the photovoltaic installation sub-areas within the photovoltaic installation area to determine the unit installation tilt. This ensures that the photovoltaic panels within the photovoltaic installation sub-area can receive more sunlight in terms of both the irradiated area and the irradiated time, directly improving the utilization efficiency of solar resources by the photovoltaic panels.
[0024] Example 2
[0025] like Figures 1-2 As shown in the embodiment of the present invention, a photovoltaic panel installation and positioning method based on digital twins further includes the following steps: Step 3: Set the simulated light test cycle, use digital twin technology to simulate the photovoltaic panels in the overall photovoltaic installation area based on historical effective light data, and perform adjacent photovoltaic shading analysis on the photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas; In some embodiments, adjacent photovoltaic installation areas can be two diagonally adjacent photovoltaic installation sub-areas, two longitudinally (vertically) adjacent photovoltaic installation sub-areas, or two laterally (horizontally) adjacent photovoltaic installation sub-areas. It should be noted that there are four diagonally adjacent photovoltaic installation sub-areas, two vertically adjacent photovoltaic installation sub-areas, and two horizontally adjacent photovoltaic installation sub-areas. Preferably, any photovoltaic installation sub-region is selected as the photovoltaic shading analysis sub-region; The simulated illumination test period is divided according to the division method of the simulated illumination monitoring period, resulting in several simulated illumination test periods. The effective illumination area of the photovoltaic panel in each simulated illumination period is obtained within the photovoltaic shading analysis sub-region. The difference between the effective illumination area and the area of the photovoltaic panel itself is calculated, and the absolute value is taken to obtain the ineffective illumination area. Extract the vertically adjacent photovoltaic installation sub-regions of the photovoltaic shading analysis sub-region, and obtain the area of overlap between the vertically adjacent photovoltaic installation sub-regions and the photovoltaic panels in the photovoltaic shading analysis sub-region within each simulated illumination period, based on the current simulated solar illumination angle, as the vertically adjacent photovoltaic overlap area; The overlapping area of adjacent photovoltaic cells is compared with the area of ineffective illumination. The overlapping area is extracted and then compared with the area of ineffective illumination to obtain the overlapping area of adjacent cells. The shading analysis area is obtained by summing and averaging the longitudinal-to-adjacent ratios of the overlapping areas during each simulated lighting test period. Similarly, extract the horizontally adjacent photovoltaic installation sub-regions of the photovoltaic shading analysis sub-region, and obtain the area of overlap between the horizontally adjacent photovoltaic installation sub-regions and the photovoltaic panels in the photovoltaic shading analysis sub-region within each simulated illumination period, based on the current simulated solar illumination angle, as the horizontally adjacent photovoltaic overlap area. The overlapping area of adjacent photovoltaic cells is compared with the area of ineffective illumination. The overlapping area is extracted and then compared with the area of ineffective illumination to obtain the overlapping area of adjacent cells. The average of the horizontally overlapping areas during each simulated lighting test period is used to calculate the occlusion analysis area. Similarly, the diagonally adjacent photovoltaic installation sub-regions of the photovoltaic shading analysis sub-region are extracted, and the overlapping area between the diagonally adjacent photovoltaic installation sub-regions and the photovoltaic panels in the photovoltaic shading analysis sub-region is obtained in each simulated illumination period based on the current simulated solar illumination angle. This area is taken as the diagonally adjacent photovoltaic overlap area. The overlapping area of diagonally adjacent photovoltaic cells is compared with the area of ineffective illumination. The overlapping area is extracted and then compared with the area of ineffective illumination to obtain the overlapping area of diagonally adjacent cells. The average of the diagonally overlapping areas within each simulated illumination test period is used to calculate the occlusion analysis area. Compare the size of the shading analysis area corresponding to adjacent photovoltaic installation areas, and select the adjacent photovoltaic installation area corresponding to the largest shading analysis area as the main photovoltaic shading sub-region. It should be noted that the significance of identifying the main photovoltaic shading sub-areas is that by identifying the main shading photovoltaic installation sub-areas, it is possible to clearly identify which adjacent photovoltaic panels significantly shade the photovoltaic panels in the photovoltaic shading analysis sub-area. When installing and positioning photovoltaic panels, the installation position of the photovoltaic panels can be accurately adjusted based on this result to avoid or reduce the occurrence of such shading. Since the shading of photovoltaic panels in the photovoltaic shading analysis sub-area varies depending on the direction of the adjacent photovoltaic installation sub-area, by identifying the main shading source, the shading factors in various directions can be comprehensively considered during installation and positioning, making the light received by the photovoltaic panel surface more uniform. This helps to reduce the situation of local overheating or insufficient light on the photovoltaic panel, and reduces the risk of performance degradation and damage caused by uneven light. Step 4: Based on the proximity of the main photovoltaic shading sub-area to the photovoltaic shading analysis sub-area, and the proximity of other photovoltaic installation sub-areas around the photovoltaic shading analysis sub-area, obtain the tilt adjustment range, and perform tilt installation adjustment operations on the photovoltaic shading analysis sub-area; For example, if the main photovoltaic shading sub-area is a longitudinally adjacent photovoltaic installation sub-area, then the installation bracket height of the photovoltaic panel, the height of the photovoltaic panel itself, and the unit installation tilt angle corresponding to the longitudinally adjacent photovoltaic installation sub-area within the photovoltaic shading analysis sub-area are substituted into Formula 1. Inside, the height of the obstruction is obtained. ; in, This represents the height of the mounting brackets for photovoltaic panels within vertically adjacent photovoltaic installation sub-areas. This represents the height of the photovoltaic panels themselves within the vertically adjacent photovoltaic installation sub-areas. This is represented as the unit installation tilt angle corresponding to the vertically adjacent photovoltaic installation sub-areas; Obtain the topographic elevation difference, longitudinal spacing, and illumination angle between the photovoltaic shading analysis sub-region and the longitudinally adjacent photovoltaic installation sub-region, and substitute them into Formula 2. ,in, Represented as topographic elevation difference, Indicated as the angle of illumination, Represented as vertical spacing, This represents the adjusted height of the photovoltaic panel within the photovoltaic shading analysis sub-region. Combining Formula 1 and Formula 2, we obtain Formula 3: ; Extract the photovoltaic shading analysis sub-region longitudinally from the photovoltaic installation sub-region, and record the longitudinal distance between the longitudinally installed photovoltaic sub-region and the photovoltaic shading analysis sub-region as . ; Through formula four: Reverse the derivation to Formula 5: ; Based on Formulas 3 and 5, the tilt adjustment range is obtained ( , ).
[0026] The specific solution in this embodiment is as follows: A simulated illumination test cycle is set, and digital twin technology is used to simulate the photovoltaic panels within the overall photovoltaic installation area based on historical effective illumination data. Adjacent photovoltaic shading analysis is performed on photovoltaic panels in adjacent photovoltaic installation sub-areas to identify the main photovoltaic shading areas. Based on the shading analysis area of the main photovoltaic shading sub-areas during each simulated illumination period, the tilt adjustment range is obtained. Tilt adjustment operations are then performed on the photovoltaic shading analysis sub-areas. After identifying the main photovoltaic shading sub-areas, adjustments are made to them according to the tilt adjustment range. This effectively reduces shading from adjacent photovoltaic installation sub-areas and prevents shading of other surrounding photovoltaic installation sub-areas after adjustments are made to the photovoltaic shading analysis sub-areas.
[0027] Example 3
[0028] Please see Figure 2 As shown in the embodiment of the present invention, a photovoltaic panel installation and positioning system based on digital twins includes the following modules: Includes the following modules: Sub-area orientation analysis module: Analyzes the orientation of photovoltaic installation sub-areas within the current hillside installation area, determines the current sub-area orientation, and constructs a tilt installation database; Sub-area tilt determination module: Based on the installation tilt in the tilt database, digital twin technology is used to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area, and the historical effective sunlight data of the photovoltaic installation sub-area within the photovoltaic installation area is analyzed to determine the unit installation tilt. Adjacent photovoltaic installation areas include diagonally adjacent, longitudinally adjacent, and laterally adjacent photovoltaic installation sub-areas; Main shading screening module: Set the simulated light test cycle, use digital twin technology to simulate the test of photovoltaic panels in each photovoltaic installation sub-area based on historical effective light data, and perform adjacent photovoltaic shading analysis on photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas; Tilt Range Adjustment Module: By combining the location of the main photovoltaic shading sub-area with the location of other photovoltaic installation sub-areas around the photovoltaic shading analysis sub-area, the upper and lower limits of the tilt range are determined.
[0029] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.
Claims
1. A photovoltaic panel installation and positioning method based on digital twins, characterized in that: Analyze the orientation of the photovoltaic installation sub-areas within the current hillside installation area, determine the current sub-area orientation, and construct a tilt installation database; Based on the installation tilt in the tilt database, digital twin technology is used to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area. The historical effective sunlight data of the photovoltaic installation sub-area within the photovoltaic installation area is then analyzed to determine the unit installation tilt. Adjacent photovoltaic installation areas include diagonally adjacent, longitudinally adjacent, and laterally adjacent photovoltaic installation sub-areas; Set a simulated illumination test cycle, and use digital twin technology to simulate the test of photovoltaic panels in each photovoltaic installation sub-area based on historical effective illumination data. Also, perform adjacent photovoltaic shading analysis on photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas. By combining the location of the main photovoltaic shading sub-area with the location of other photovoltaic installation sub-areas around the photovoltaic shading analysis sub-area, the upper and lower limits of the tilt adjustment range are determined.
2. The photovoltaic panel installation and positioning method based on digital twins according to claim 1, characterized in that: The process of determining the current sub-region orientation and building the tilt installation database is as follows: The current hillside installation area is divided into several photovoltaic installation sub-areas with equal area. The center point of each photovoltaic installation sub-area is used as the sub-area analysis point. The normal direction corresponding to each sub-area analysis point is used as the sub-area normal direction. The orientation of the current sub-area is determined based on the sub-area normal direction. Based on the current sub-area orientation, the installation tilt of the photovoltaic installation sub-areas is selected from multiple historical photovoltaic installation cycles and sorted in chronological order to construct a tilt installation database.
3. The photovoltaic panel installation and positioning method based on digital twins according to claim 2, characterized in that: The simulated installation operation for each photovoltaic installation sub-area within the photovoltaic installation area is as follows: Select any installation tilt from the tilt installation database as the current tilt to be determined for the photovoltaic installation sub-area, set the simulated light monitoring cycle, divide the simulated light monitoring cycle into several simulated light monitoring periods, and simulate the installation of photovoltaic panels in the photovoltaic installation sub-area.
4. The photovoltaic panel installation and positioning method based on digital twins according to claim 1, characterized in that: The process for determining the unit installation tilt angle is as follows, based on the historical effective solar irradiance data of the photovoltaic installation sub-area within the photovoltaic installation area: The effective irradiated area ratio is calculated by comparing the area of the photovoltaic panels in the photovoltaic installation sub-area that is irradiated by the simulated sun during the simulated light monitoring period with the area of the photovoltaic panels themselves. The average of these ratios is then calculated to obtain the mean effective irradiated area ratio. The effective irradiation time ratio is calculated by comparing the time the photovoltaic panels in the photovoltaic installation sub-area are irradiated by simulated sunlight during the simulated irradiation monitoring period with the duration of the simulated irradiation monitoring period. The average of these ratios is then calculated to obtain the mean effective irradiation time ratio. The average effective irradiation area ratio and the average effective irradiation time ratio are summed to obtain the effective photovoltaic irradiation screening value. The current tilt angle corresponding to the maximum effective photovoltaic irradiation screening value is selected as the unit installation tilt angle.
5. The photovoltaic panel installation and positioning method based on digital twin according to claim 1, characterized in that: The process of simulating tests on photovoltaic panels in each photovoltaic installation sub-area is as follows: Arbitrarily select a photovoltaic installation sub-area as the photovoltaic shading analysis sub-area, divide the simulated illumination test cycle into several simulated illumination test periods, obtain the effective illumination area of the photovoltaic panel in the photovoltaic shading analysis sub-area during each simulated illumination period, and calculate the difference between the effective illumination area and the area of the photovoltaic panel itself. After taking the absolute value, the ineffective illumination area is obtained.
6. The photovoltaic panel installation and positioning method based on digital twin according to claim 1, characterized in that: The process of performing adjacent photovoltaic shading analysis on photovoltaic panels within adjacent photovoltaic installation sub-areas is as follows: Extract the vertically adjacent, horizontally adjacent, and diagonally adjacent photovoltaic installation sub-regions respectively. Using the current simulated solar illumination angle, obtain the overlapping area between the vertically adjacent, horizontally adjacent, and diagonally adjacent photovoltaic installation sub-regions and the photovoltaic shading analysis sub-regions, respectively, as the vertically adjacent photovoltaic overlapping area, horizontally adjacent photovoltaic overlapping area, and diagonally adjacent photovoltaic overlapping area. The overlapping area ratios between the longitudinal adjacent photovoltaic overlapping area, the transverse adjacent photovoltaic overlapping area, and the diagonal adjacent photovoltaic overlapping area and the ineffective illumination area are obtained respectively, and are used as the longitudinal adjacent overlapping area, transverse adjacent overlapping area, and diagonal adjacent overlapping area.
7. The photovoltaic panel installation and positioning method based on digital twin according to claim 6, characterized in that: The selection process for the main photovoltaic shading sub-regions is as follows: The shading analysis area is obtained by summing and averaging the longitudinal-to-adjacent ratios of the overlapping areas during each simulated lighting test period. The occlusion analysis area is obtained by summing and averaging the horizontal adjacent ratios of the overlapping areas during each simulated lighting test period. The occlusion analysis area is obtained by summing and averaging the overlapping areas of the diagonal adjacent ratios within each simulated illumination test period. The adjacent photovoltaic installation area corresponding to the largest shading analysis area is selected as the main photovoltaic shading sub-region.
8. The photovoltaic panel installation and positioning method based on digital twin according to claim 1, characterized in that: The process for obtaining the lower limit value within the tilt adjustment range is as follows: Taking the main photovoltaic shading sub-area as the longitudinally adjacent photovoltaic installation sub-area as an example, the shading height is obtained... The terrain elevation difference, longitudinal spacing, and illumination angle between the photovoltaic shading analysis sub-region and the longitudinally adjacent photovoltaic installation sub-region are obtained. These are then substituted into Formula 2. By combining Formula 1 and Formula 2, the lower limit value within the tilt adjustment range is obtained. .
9. A photovoltaic panel installation and positioning method based on digital twins according to claim 8, characterized in that: The process for obtaining the upper limit value within the tilt adjustment range is as follows: Extract the photovoltaic shading analysis sub-region longitudinally and then the photovoltaic installation sub-region, and obtain the longitudinal distance between the longitudinally rear photovoltaic installation sub-region and the photovoltaic shading analysis sub-region as . By combining Formula 4 and working backwards to Formula 5, we can obtain the upper limit of the tilt adjustment range. .
10. A photovoltaic panel installation and positioning system based on digital twins, characterized in that: Includes the following modules: Sub-area orientation analysis module: Analyzes the orientation of photovoltaic installation sub-areas within the current hillside installation area, determines the current sub-area orientation, and constructs a tilt installation database; Sub-area tilt determination module: Based on the installation tilt in the tilt database, digital twin technology is used to simulate the installation of each photovoltaic installation sub-area within the photovoltaic installation area, and the historical effective sunlight data of the photovoltaic installation sub-area within the photovoltaic installation area is analyzed to determine the unit installation tilt. Adjacent photovoltaic installation areas include diagonally adjacent, longitudinally adjacent, and laterally adjacent photovoltaic installation sub-areas; Main shading screening module: Set the simulated light test cycle, use digital twin technology to simulate the test of photovoltaic panels in each photovoltaic installation sub-area based on historical effective light data, and perform adjacent photovoltaic shading analysis on photovoltaic panels in adjacent photovoltaic installation sub-areas to screen out the main photovoltaic shading sub-areas; Tilt Range Adjustment Module: By combining the location of the main photovoltaic shading sub-area with the location of other photovoltaic installation sub-areas around the photovoltaic shading analysis sub-area, the upper and lower limits of the tilt range are determined.