Photovoltaic station arrangement method, system and equipment

Abstract

The invention relates to the technical field of photovoltaic, in particular to a photovoltaic station arrangement method, system and equipment. The method comprises the steps that a building model of a house is constructed, and a roof, where photovoltaic panels can be arranged, of the building model is obtained; obtaining the irradiance of each roof, and determining an irradiation grade corresponding to the irradiance of the roof based on a plurality of preset irradiation grades; and receiving an installation demand instruction, arranging the photovoltaic panels on the roof according to the irradiation grade and the installation demand instruction, and generating a photovoltaic panel arrangement scheme. According to the method, the building model of the house is constructed, the irradiation values of all the roofs are automatically calculated and graded, the photovoltaic panel generation scheme is arranged in combination with the installation demand instruction, the scheme generation speed is high, the cost is low, the irradiation grades of the roofs are divided by calculating the irradiation values, the actual irradiation conditions of different roofs are reflected more accurately, and the method is suitable for popularization and application. The photovoltaic panels are arranged in combination with irradiation differences and installation requirements, so that the predicted power generation amount is more matched with an actual value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic, in particular to a photovoltaic station arrangement method, system and equipment. BACKGROUND

[0002] With the popularity of distributed photovoltaic power stations, the demand for photovoltaic system design in the scenario of inclined roof is increasing. The traditional photovoltaic power station arrangement method mainly relies on manual site reconnaissance to obtain the size of the roof, and then manually designs through drawing software or uses modeling tools to conduct static modeling based on historical average irradiance data. This arrangement method needs site reconnaissance cost on the one hand, and needs to find a design institute or a professional person with relevant design experience on the other hand, which has a long time cycle, high arrangement cost, and is based on historical average irradiance data when arranging, ignoring the irradiance difference of the roof, resulting in mismatch between actual power generation and theoretical value. SUMMARY

[0003] Embodiments of the present application aim to provide a photovoltaic station arrangement method, system and equipment to improve the technical problem of mismatch between actual power generation and theoretical value of photovoltaic panels.

[0004] To solve the above technical problem, embodiments of the present application disclose the following technical solutions:

[0005] In a first aspect, the embodiments of the present application provide a photovoltaic station arrangement method, comprising:

[0006] constructing a building model of a house to obtain a roof surface of the building model on which photovoltaic panels can be arranged;

[0007] obtaining irradiance of each of the roof surfaces, determining an irradiance level corresponding to the irradiance of the roof surface based on a plurality of pre-set irradiance levels;

[0008] receiving a power installation demand instruction, arranging the photovoltaic panels on the roof surfaces according to the irradiance levels and the power installation demand instruction, and generating a photovoltaic panel arrangement scheme.

[0009] In an embodiment of the present application, the obtaining of the irradiance of each of the roof surfaces comprises:

[0010] obtaining an influence factor of each of the roof surfaces;

[0011] calculating the irradiance of the roof surface according to the influence factor, the influence factor comprising at least one of a roof surface orientation, a roof surface inclination, a sunshine duration, a latitude and historical meteorological data.

[0012] In an embodiment of the present application, the influence factor further comprises an obstacle, and the method further comprises:

[0013] In the case that there is an obstruction on the roof, the irradiation level of the roof is determined as the lowest level.

[0014] In an embodiment of the present application, the installed capacity requirement instruction comprises a target installed capacity power instruction, a maximum power generation amount instruction and an optimal payback period instruction.

[0015] The target installed capacity power instruction is used to instruct to arrange the photovoltaic panels according to the target installed capacity, the maximum power generation amount instruction is used to instruct to arrange the photovoltaic panels according to the maximum amount, and the optimal payback period instruction is used to instruct to arrange the photovoltaic panels according to the fastest payback period.

[0016] In an embodiment of the present application, in the case that the installed capacity requirement instruction is the target installed capacity power instruction, the arranging the photovoltaic panels on the roof comprises:

[0017] acquiring the target installed capacity according to the target installed capacity power instruction;

[0018] calculating the required number of photovoltaic panels according to the target installed capacity and the power of the photovoltaic panels;

[0019] arranging the photovoltaic panels on the roof at a preset interval in the case that the irradiation level of the roof is the highest, and in the case that the current roof capacity is insufficient, expanding to the adjacent roof to continue to arrange the photovoltaic panels in the order of the irradiation level from high to low and the distance between the roofs from near to far until the target installed capacity is met.

[0020] In an embodiment of the present application, the method further comprises:

[0021] generating a capacity overrun prompt in the case that the target installed capacity exceeds the maximum installed capacity of the building model.

[0022] In an embodiment of the present application, the method further comprises:

[0023] arranging the photovoltaic panels according to the area of the roof from large to small in the case that there are multiple roofs with the highest irradiation level.

[0024] In an embodiment of the present application, in the case that the installed capacity requirement instruction is the maximum power generation amount instruction, the arranging the photovoltaic panels on the roof comprises:

[0025] arranging the photovoltaic panels on all the roofs based on the maximum density based on the physical boundary and the structural bearing limit of the building model.

[0026] In an embodiment of the present application, in the case that the installed capacity requirement instruction is the optimal payback period instruction, the arranging the photovoltaic panels on the roof comprises:

[0027] arranging the photovoltaic panels in the overlapping region of the first region and the second region at a preset interval, the first region being the roof surface satisfying a preset level for the irradiation level, and the second region being a region in which the distance between the wires arranged in series in all the roof surfaces is less than a preset distance.

[0028] In an embodiment of the present application, the method further comprises:

[0029] receiving a scheme adjustment instruction, and adjusting the position of the photovoltaic panel and the number of photovoltaic panels in the photovoltaic panel arrangement scheme according to the scheme adjustment instruction.

[0030] In a second aspect, an embodiment of the present application provides a photovoltaic station arrangement system, comprising,

[0031] a model generation module configured to construct a building model of a house and obtain a roof surface on which the photovoltaic panel can be arranged in the model;

[0032] an irradiation calculation module connected to the irradiation calculation module and configured to obtain the irradiance of each of the roof surfaces and determine the irradiation level corresponding to the irradiance of the roof surface based on a plurality of preset irradiation levels;

[0033] an arrangement module connected to the irradiation calculation module and configured to receive a demand for installation instruction, arrange the photovoltaic panel on the roof surface according to the irradiation level and the demand for installation instruction, and generate a photovoltaic panel arrangement scheme.

[0034] In a third aspect, an embodiment of the present application provides a photovoltaic station arrangement device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor; when the processor executes the computer program, the steps of the photovoltaic station arrangement method are implemented.

[0035] The present application has the following beneficial effects: the present application constructs a building model of a house, automatically calculates the irradiation value of each roof surface and divides the levels, arranges the photovoltaic panel to generate a scheme in combination with the demand for installation instruction, the scheme is generated quickly and has low cost, and the present application divides the irradiation level of the roof surface by calculating the irradiation value, more accurately reflects the actual irradiation condition of different roof surfaces, arranges the photovoltaic panel in combination with the irradiation difference and the demand for installation, and makes the power generation prediction more matched with the actual value. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0037] Figure 1This is a schematic diagram of the steps of the photovoltaic station arrangement method according to an embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of a scheme for arranging photovoltaic panels on a roof according to an embodiment of the present application;

[0039] Figure 3 This is an architectural diagram of a photovoltaic station arrangement system according to an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 1. Model generation module; 2. Irradiation calculation module; 3. Arrangement module; 4. Interaction module; 41. Interaction icon; 5. Roof; 6. Photovoltaic panel. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0043] In this application, unless otherwise specified or limited, terms such as "connected," "connected," and "stacked" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0044] The specific implementation of this application is described below through examples:

[0045] like Figure 1 As shown, an embodiment of the present application provides a photovoltaic station arrangement method, comprising:

[0046] Step S1, constructing a building model of a house and obtaining a roof 5 of the building model on which photovoltaic panels 6 can be arranged;

[0047] Step S2, obtaining the irradiance of each roof 5, and determining the irradiance level corresponding to the irradiance of the roof 5 based on a plurality of pre-set irradiance levels;

[0048] Step S3: receiving the installation demand instruction, arranging the photovoltaic panels 6 on the roof 5 according to the irradiation level and the installation demand instruction, and generating a photovoltaic panel arrangement plan.

[0049] Specifically, step S1 constructs an architectural model of the house, and obtains the roof 5 on which the photovoltaic panels 6 can be arranged in the architectural model, including obtaining three-dimensional data of the house through satellite remote sensing technology or drone mapping, and constructing the architectural model of the house based on the three-dimensional data of the house. The architectural model includes geometric features such as roof shape, slope, and number of slope surfaces.

[0050] Specifically, step S2 obtains the irradiance of each roof 5 and, based on multiple pre-set irradiance levels, determines the irradiance level corresponding to the irradiance of each roof 5. This includes identifying roofs 5 that meet photovoltaic installation requirements, excluding unsuitable areas such as skylights and chimneys, and determining a set of roofs 5 where photovoltaic panels 6 can be arranged. The irradiance of each roof 5 is calculated, divided into multiple irradiance levels, and the corresponding irradiance level is labeled for each roof 5.

[0051] like Figure 2 As shown, the present application divides the calculated irradiance into 5 levels (a, b, c, d, e) from high to low. Of course, in other embodiments, the number of irradiance levels can be adjusted as needed. After the levels are divided, each roof 5 is marked with the corresponding irradiance level. Preferably, in addition to marking letters, different colors, patterns, grayscale values, etc. can also be marked on the corresponding roof 5 of the building model to more intuitively display the irradiance level of each roof 5.

[0052] Specifically, step S3 receives the installation demand instruction, arranges the photovoltaic panels 6 on the roof 5 according to the irradiation level and the installation demand instruction, and generates a photovoltaic panel arrangement plan, including: after receiving the installation demand instruction, parsing the instruction content, starting the corresponding algorithm logic, and arranging the photovoltaic panels 6. After the arrangement is completed, a visual photovoltaic panel arrangement plan including the location, quantity and power generation estimate of the photovoltaic panels is generated.

[0053] This application constructs a building model of the house, automatically calculates the irradiance of each roof 5 and divides it into levels, and arranges the photovoltaic panels 6 in combination with the installation demand instructions to generate a plan. The plan generation speed is fast and the cost is low. In addition, this application divides the irradiance level of the roof 5 by calculating the irradiance, which more accurately reflects the actual irradiation conditions of different roofs 5. The photovoltaic panels 6 are arranged in combination with the irradiation differences and installation demand, so that the power generation forecast is more consistent with the actual value.

[0054] In an optional embodiment, obtaining the irradiance of each roof 5 includes:

[0055] Get the impact factor of each roof 5;

[0056] The irradiance of the roof 5 is calculated according to the influence factors, including at least one of the roof orientation, the roof tilt angle, the sunshine duration, the latitude and the historical meteorological data.

[0057] Specifically, the application directly extracts the orientation and tilt angle data of each roof 5 from the building model generated in step S1, and obtains the latitude information of the location of the house, and then obtains meteorological data such as local sunshine duration and solar radiation intensity in the past 20 years from a meteorological database, and combines the latitude information, the solar hour angle, and the roof orientation and tilt angle parameters obtained in step S1 to calculate the annual average irradiance of each roof 5.

[0058] Further specifically, the application can calculate the annual average irradiance of each roof 5 by establishing an irradiance calculation model, and can use the Perez model, the Hottel-Whillier model, etc.

[0059] According to the calculated irradiance, the threshold values for grade division are set, and in the application, the roof 5 with an irradiance of 80% to 100% is marked as the highest grade a, the roof 5 with an irradiance of 60% to 80% is marked as the next highest grade b, the roof 5 with an irradiance of 40% to 60% is marked as the third highest grade c, the roof 5 with an irradiance of 20% to 40% is marked as the fourth highest grade d, and the roof 5 with an irradiance of 0% to 20% is marked as the lowest grade e.

[0060] The application calculates the irradiance of the roof 5 in combination with multiple influence factors, more accurately reflects the real power generation capacity of different roofs 5, avoids the problem of incorrect estimation of power generation capacity caused by single roof 5 parameters, and based on the divided irradiance grades, can preferentially select high irradiance areas to arrange the photovoltaic panels 6 and optimize resource allocation.

[0061] In an optional embodiment, the influence factors further include an obstruction, and the method further includes:

[0062] In the case where the roof 5 has an obstruction, the irradiance grade of the roof 5 is determined to be the lowest level.

[0063] Specifically, the application identifies the obstructions on the roof, such as chimneys, vents, skylights, etc., based on the building model, and marks the positions, shapes and heights thereof. For complex structures, the user can manually mark the contours and obstruction ranges of external obstructions such as trees and adjacent buildings. Once it is detected that the roof 5 has an obstruction, the irradiance grade of the roof 5 is determined to be the lowest level, and in the process of arranging the photovoltaic panels 6, the roof 5 with the lowest irradiance grade is preferentially skipped.

[0064] In an optional embodiment, the installed capacity demand instruction includes a target installed capacity power instruction, a maximum power generation capacity instruction and an optimal payback period instruction.

[0065] The target installed capacity instruction is used to indicate the arrangement of the photovoltaic panel 6 according to the target installed capacity, the maximum power generation instruction is used to indicate the arrangement of the photovoltaic panel 6 according to the maximum amount, and the optimal payback period instruction is used to indicate the arrangement of the photovoltaic panel 6 according to the fastest payback period.

[0066] Specifically, the application can receive the installed capacity demand instruction input by the user to generate a corresponding photovoltaic panel arrangement scheme, and quickly meet the user's comparison demand for multiple schemes.

[0067] In an optional embodiment, when the installed capacity demand instruction is the target installed power instruction, the photovoltaic panel 6 is arranged on the roof 5, including:

[0068] The target installed capacity is obtained according to the target installed power instruction;

[0069] The number of photovoltaic panels 6 required is calculated according to the target installed capacity and the power of the photovoltaic panel 6;

[0070] The photovoltaic panel 6 is arranged on the roof 5 with the highest irradiation level at a preset interval, and in the case that the current roof 5 capacity is insufficient, the arrangement is expanded to the adjacent roof 5 in the order of irradiation level from high to low and the distance between the roofs 5 from near to far, until the target installed capacity is met.

[0071] Specifically, the target installed capacity is the user's psychological expectation of the roof photovoltaic installed capacity. After the user inputs the target installed capacity, the corresponding target installed power instruction is generated, and the photovoltaic panel 6 is automatically arranged. For example, if the user inputs a target installed capacity of 6kW, a photovoltaic panel 6 with a capacity of 6kW will be arranged.

[0072] Based on the target installed capacity given by the user, the intelligent dynamic arrangement of the photovoltaic panel 6 on the roof 5 is realized through the irradiation priority and cost optimization double-target algorithm. The arrangement rule is to arrange from high to low according to the irradiation level calculated in the previous step, and to preferentially arrange in the nearby area, which is compatible with the optimal irradiation and optimal installation cost. Under the user's capacity expectation, the efficient arrangement of "high irradiation priority, low cost adaptation" is realized, and the power generation performance and economy of the photovoltaic station are compatible.

[0073] The application calculates the total number of photovoltaic panels according to the user input installed capacity. For example, if the user inputs a target installed capacity of 6kW, the target installed capacity divided by the actual use photovoltaic panel power equals the total number of photovoltaic panels required, and the photovoltaic panel model is usually specified according to the specified use power model of the project site.

[0074] The input data of the application includes roof irradiance and photovoltaic spacing in addition to the target installed capacity, wherein the photovoltaic spacing is fixed, according to the calculated irradiance, the roof with the highest irradiance level is selected, and according to the photovoltaic spacing, the photovoltaic array closest to the roof is arranged first, the arrangement distance between the photovoltaic panels 6 is reduced, the gap between the components is reduced, the effective space of the roof is fully utilized, and the installation cost is reduced.

[0075] Specifically, according to the target installed capacity input by the user, the target installed capacity is divided by the power of the photovoltaic panel to obtain the number of photovoltaic panels, and if the calculation result is not an integer, the number of photovoltaic panels is rounded up.

[0076] Based on the irradiance level data of each roof 5 calculated in step S2, all the roofs 5 that can arrange photovoltaic panels 6 are sorted in descending order of irradiance level. Starting from the roof 5 with the highest irradiance level, the photovoltaic panels 6 are arranged according to the preset spacing. During the arrangement process, the number of arranged photovoltaic panels and the remaining available area are calculated. If the roof 5 can accommodate all the number of photovoltaic panels 6, the arrangement is completed; if not, the number of arranged photovoltaic panels and the number of remaining photovoltaic panels are recorded. In the case that the current roof 5 is insufficient, in the remaining unarranged roofs 5, the expansion target is selected according to the principle of descending order of irradiance level and descending order of distance between roofs 5. On the selected expansion roof 5, the remaining photovoltaic panels 6 are arranged according to the preset spacing, and the above process is repeated until all the required number of photovoltaic panels 6 are arranged.

[0077] The application also has an interactive function. Please refer to Figure 2 In the case that the target installed capacity does not exceed the maximum installed capacity, the application will place the area where the photovoltaic panels 6 can still be arranged on the interactive icon 41 with a plus sign. The user can increase the photovoltaic panels 6 by clicking the interactive icon 41, or select and delete the newly added photovoltaic panels 6 by pressing the delete key to restore the interactive icon 41 with a plus sign.

[0078] In an optional embodiment, the method further comprises:

[0079] In the case that the target installed capacity exceeds the maximum installed capacity of the building model, a capacity overrun prompt is generated, and the prompt is in the form of a pop-up window.

[0080] In an optional embodiment, the method further comprises:

[0081] In the case that the irradiance level of multiple roofs 5 is the highest, the photovoltaic panels 6 are arranged according to the order of descending area of the roofs 5.

[0082] In an optional embodiment, in the case that the installed demand instruction is the maximum power generation instruction, the photovoltaic panels 6 are arranged on the roof 5, comprising:

[0083] Based on the physical boundary and the structural bearing limit of the building model, the photovoltaic panels 6 are arranged on all roofs 5 based on the maximum density.

[0084] Specifically, the application obtains the geometric boundary, slope, orientation, etc. of the roof 5 from the building model, and simultaneously calls the structural bearing data of the house. The photovoltaic panels 6 are arranged on the roof 5 in a full-density covering manner, and the arrangement of the photovoltaic panels 6 is performed with the maximum installed capacity as the target.

[0085] After the user selects the maximum power generation scheme to fully cover the photovoltaic panels, the user can also manually adjust. The user selects the photovoltaic panel 6 and presses the delete key to delete the photovoltaic panel 6, thereby restoring the interactive icon 41 with the plus sign.

[0086] In an optional embodiment, when the installed demand instruction is the optimal payback period instruction, the photovoltaic panels 6 are arranged on the roof 5, comprising:

[0087] The photovoltaic panels 6 are arranged at a preset interval in the overlapping area of the first area and the second area. The first area is the roof 5 whose irradiation level meets the preset level, and the second area is the area in all roofs 5 whose string arrangement distance is less than the preset distance.

[0088] Specifically, the application defines the roof 5 whose irradiation level meets the preset level as the first area, i.e., the high-yield area. The preset level is the roof area whose irradiance is greater than or equal to 60%.

[0089] Specifically, in the photovoltaic system, the cable length directly affects the power transmission loss and material cost. The application takes the inverter or the combiner box as the reference point to calculate the straight-line distance from each roof area to the electrical node, sorts the roof areas according to the distance from near to far, and selects the areas within the top 80% distance range as the second area, i.e., the low-cost wiring area. By shortening the cable length, the loss is reduced.

[0090] The application superimposes the first area and the second area, and takes the overlapping area as the most economical arrangement area. In the most economical arrangement area, the photovoltaic panels 6 are arranged according to the size of the photovoltaic panels 6, the structure of the roof 5, and the spacing requirements.

[0091] In an optional embodiment, the method further comprises:

[0092] Receiving a scheme adjustment instruction, and adjusting the position and the number of the photovoltaic panels in the photovoltaic panel arrangement scheme according to the scheme adjustment instruction.

[0093] Specifically, the application has an interactive function. In the area where the photovoltaic panels 6 are arranged, the interactive icon 41 with the plus sign is displayed. The user clicks the interactive icon 41 to add the photovoltaic panel 6, or selects and presses the delete key to delete the newly added photovoltaic panel 6, thereby restoring the interactive icon 41 with the plus sign.

[0094] The embodiment of the present application also provides a photovoltaic station arrangement system, which comprises a photovoltaic station arrangement device and a photovoltaic station arrangement method. Figure 3 As shown in the figure, the photovoltaic station arrangement device comprises a model generation module 1, an irradiance calculation module 2 and an arrangement module 3.

[0095] The model generation module 1 is used for constructing a building model of a house and obtaining a roof 5 in the model which can arrange photovoltaic panels 6.

[0096] The irradiance calculation module 2 is connected to the irradiance calculation module 2 and is used for obtaining irradiance of each roof 5 and determining an irradiance level corresponding to the irradiance of the roof 5 based on a plurality of preset irradiance levels.

[0097] The arrangement module 3 is connected to the irradiance calculation module 2 and is used for receiving a mounting demand instruction, arranging the photovoltaic panels 6 on the roof 5 according to the irradiance level and the mounting demand instruction, and generating a photovoltaic panel arrangement scheme.

[0098] In an optional embodiment, the arrangement module 3 is connected to the arrangement module 3 and is used for receiving a scheme adjustment instruction, adjusting the position of the photovoltaic panel and the number of the photovoltaic panel in the photovoltaic panel arrangement scheme in response to the scheme adjustment instruction.

[0099] The embodiment of the present application also provides a photovoltaic station arrangement device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor; the processor implements the steps of the photovoltaic station arrangement method when executing the computer program.

[0100] The photovoltaic station arrangement method, system and device provided by the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples; the above embodiment is only used for helping to understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, the specific implementation manner and application range will be changed according to the idea of the present application; and the above description should not be understood as the limitation of the present application.

Claims

1. A photovoltaic station layout method, characterized in that: include: Constructing a building model of a house and obtaining a roof (5) of the building model on which photovoltaic panels (6) can be arranged; Acquiring the irradiance of each of the roofs (5), and determining the irradiance level corresponding to the irradiance of the roof (5) based on a plurality of pre-set irradiance levels; An installation demand instruction is received, and according to the irradiation level and the installation demand instruction, the photovoltaic panels (6) are arranged on the roof (5), thereby generating a photovoltaic panel arrangement plan.

2. The photovoltaic station arrangement method according to claim 1, characterized in that: The step of obtaining the irradiance of each roof (5) comprises: Obtaining the impact factor of each of the roofs (5); The irradiance of the roof (5) is calculated according to the influencing factors, wherein the influencing factors include at least one of roof orientation, roof inclination, sunshine duration, latitude and historical meteorological data.

3. The photovoltaic station arrangement method according to claim 2, characterized in that: The influencing factors also include obstructions, and the method further includes: In the case where there is an obstruction on the roof (5), the irradiation level of the roof (5) is determined to be the lowest level.

4. The photovoltaic station arrangement method according to claim 1, characterized in that: The installed capacity demand instruction includes a target installed capacity instruction, a maximum power generation instruction and an optimal payback period instruction; The target installed power instruction is used to instruct the photovoltaic panels (6) to be arranged according to the target installed capacity, the maximum power generation instruction is used to instruct the photovoltaic panels (6) to be arranged according to the maximum number, and the optimal payback period instruction is used to instruct the photovoltaic panels (6) to be arranged according to the fastest payback period.

5. The photovoltaic station arrangement method according to claim 4, characterized in that: When the installed capacity demand instruction is the target installed capacity power instruction, arranging the photovoltaic panels (6) on the roof (5) includes: Acquire the target installed capacity according to the target installed power instruction; Calculating the number of required photovoltaic panels (6) according to the target installed capacity and the power of the photovoltaic panels (6); The photovoltaic panels (6) are arranged at a preset spacing on the roof (5) with the highest irradiation level. When the capacity of the current roof (5) is insufficient, the photovoltaic panels (6) are extended to adjacent roofs (5) in the order of irradiation level from high to low and distance between the roofs (5) from near to far, and the arrangement continues until the target installed capacity is met.

6. The photovoltaic station arrangement method according to claim 5, characterized in that: The method further comprises: When the target installed capacity exceeds the maximum installed capacity of the building model, a capacity overlimit prompt is generated.

7. The photovoltaic station arrangement method according to claim 5, characterized in that: The method further comprises: In the case where there are multiple roofs (5) with the highest irradiation level, the photovoltaic panels (6) are arranged in order of the area of ​​the roofs (5) from large to small.

8. The photovoltaic station arrangement method according to claim 4, characterized in that: When the installed capacity demand instruction is the maximum power generation instruction, arranging the photovoltaic panels (6) on the roof (5) includes: Based on the physical boundaries and structural load-bearing limits of the building model, the photovoltaic panels (6) are arranged on all the roofs (5) based on maximum density.

9. The photovoltaic station arrangement method according to claim 4, characterized in that: When the installation demand instruction is the optimal payback period instruction, arranging the photovoltaic panels (6) on the roof (5) includes: The photovoltaic panels (6) are arranged at a preset spacing in an overlapping area between a first area and a second area, the first area being the roof (5) where the irradiation level meets the preset level, and the second area being the area where the string arrangement distance in all the roofs (5) is less than the preset distance.

10. The photovoltaic station arrangement method according to claim 4, characterized in that: The method further comprises: A scheme adjustment instruction is received, and the positions and the number of photovoltaic panels in the photovoltaic panel arrangement scheme are adjusted according to the scheme adjustment instruction.

11. A photovoltaic station layout system, characterized in that: include, A model generation module (1) is used to construct a building model of a house and obtain a roof (5) on which photovoltaic panels (6) can be arranged in the model; an irradiation calculation module (2), connected to the irradiation calculation module (2), for obtaining the irradiance of each of the roofs (5), and determining the irradiance level corresponding to the irradiance of the roof (5) based on a plurality of pre-set irradiation levels; An arrangement module (3) is connected to the irradiation calculation module (2) and is used to receive an installation demand instruction, arrange the photovoltaic panels (6) on the roof (5) according to the irradiation level and the installation demand instruction, and generate a photovoltaic panel arrangement plan.

12. A photovoltaic station layout device, characterized in that: The system comprises a memory, a processor, and a computer program stored in the memory and executable on the processor; when the processor executes the computer program, the steps of the photovoltaic station arrangement method according to any one of claims 1 to 10 are implemented.

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