CN117010071A - Roof photovoltaic visual design method, system, equipment and medium - Google Patents
Roof photovoltaic visual design method, system, equipment and medium Download PDFInfo
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Abstract
The application relates to the technical field of building photovoltaic simulation, and discloses a method, a system, equipment and a medium for designing a roof photovoltaic visual design, wherein the method comprises the following steps: carrying out three-dimensional modeling on roof photovoltaics and the building where the roof photovoltaics are positioned according to the building information model to obtain a roof photovoltaic building model; creating a photovoltaic module group according to the roof photovoltaic building model, and building each photovoltaic module in the group to generate a modularized prefabricated photovoltaic module model library; extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library to arrange the photovoltaic modules, so as to obtain a roof photovoltaic preliminary model; calculating the optimal distance between photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; and adjusting the initial roof photovoltaic model according to the optimal distance to obtain a visual roof photovoltaic model. The application reduces the generating capacity loss of the photovoltaic power station caused by component shadow shielding and effectively improves the return on investment of the power station.
Description
Technical Field
The application relates to the technical field of building photovoltaic simulation, in particular to a method, a system, equipment and a medium for visual design of roof photovoltaic.
Background
At present, the construction and arrangement of roof photovoltaics generally requires a designer to arrange a photovoltaic panel array layout diagram design on a two-dimensional CAD building specialty via lines, and equipment information such as a photovoltaic panel is separated from a two-dimensional drawing, and a prefabricated part component processing diagram provided by the traditional photovoltaic design is produced, so that time and labor are wasted, engineering efficiency and accuracy cannot be guaranteed, and shadow shielding cannot be avoided. Therefore, a solution is needed to solve the above-mentioned problems.
Disclosure of Invention
The application provides a visual design method, a visual design system, visual design equipment and visual design media for a roof photovoltaic, which solve the problems of low construction and arrangement efficiency, low accuracy and shadow shielding of the existing roof photovoltaic.
In order to solve the technical problem, a first aspect of the present application provides a method for designing a roof photovoltaic visualization, comprising:
carrying out three-dimensional modeling on roof photovoltaics and the building where the roof photovoltaics are positioned according to the building information model to obtain a roof photovoltaic building model;
creating a photovoltaic module group according to the roof photovoltaic building model, and building each photovoltaic module in the group to generate a modularized prefabricated photovoltaic module model library;
extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library to arrange the photovoltaic modules, so as to obtain a roof photovoltaic preliminary model;
calculating the optimal distance between photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof;
and adjusting the initial roof photovoltaic model according to the optimal distance to obtain a visual roof photovoltaic model.
Further, three-dimensional modeling is carried out on the roof photovoltaic and the building where the roof photovoltaic is located according to the building information model to obtain a roof photovoltaic building model, and the method comprises the following steps:
building a building template through three-dimensional modeling software;
adjusting the unit length of the building sample plate according to the roof photovoltaic information;
and building modeling is carried out in the three-dimensional modeling software by taking the existing building information of the roof as a base map, so as to obtain a roof photovoltaic building model.
Further, the photovoltaic module group comprises group types, group parameters, square matrix strings with dip angles, single piles, piles with dip angles and pile foundations.
Further, extracting a plurality of photovoltaic modules from the modular prefabricated photovoltaic module model library for arrangement to obtain a roof photovoltaic preliminary model, including:
extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library according to the relation between the size of the photovoltaic panel and the roof area;
and arranging a plurality of photovoltaic modules according to the heights of the buildings around the roof to obtain a roof photovoltaic preliminary model.
Further, according to the latitude of the roof and the inclination angle of the array of the photovoltaic panels in the preliminary model of the roof, the method comprises the following steps:
acquiring illumination resource data of an area where the roof is located, wherein the illumination resource data comprises insolation intensity, solar radiation quantity and environmental temperature;
calculating the total radiation stability of the horizontal plane of the photovoltaic panel in the roof photovoltaic preliminary model according to the insolation intensity;
and adjusting the array inclination angle of the photovoltaic panel in the roof photovoltaic preliminary model through the total radiation stability of the horizontal plane and the simulated generating capacity of the roof photovoltaic preliminary model to obtain the optimal inclination angle of the photovoltaic panel.
Further, the optimal distance is calculated by the following formula:
wherein D is the optimal distance; l is the length of the inclined plane of the photovoltaic array; beta is the optimal inclination angle of the photovoltaic panel in the photovoltaic array; phi is the latitude of the roof; m, N are all constant.
Further, the method for adjusting the initial model of the roof photovoltaic according to the optimal distance comprises the following steps of:
according to the illumination resource data and the latitude and longitude of the roof, calculating the radiation quantity on the photovoltaic module installation inclined plane in the roof photovoltaic visual model;
calculating the annual peak sunlight hours of the photovoltaic module in the roof photovoltaic visual model according to the radiation quantity and the standard solar radiation intensity;
and estimating the photovoltaic productivity of the roof photovoltaic visual model according to the annual peak sunlight hours to obtain the annual total power generation.
A second aspect of the present application provides a rooftop photovoltaic visualization design system, comprising:
the building model construction module is used for carrying out three-dimensional modeling on the roof photovoltaic and the building where the roof photovoltaic is located according to the building information model to obtain a roof photovoltaic building model;
the module model library construction module is used for creating a photovoltaic module group according to the roof photovoltaic building model, constructing each photovoltaic module in the group and generating a modularized prefabricated photovoltaic module model library;
the preliminary model construction module is used for extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library to be arranged, so as to obtain a roof photovoltaic preliminary model;
the optimal distance calculation module is used for calculating the optimal distance between the photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof;
and the visualization model construction module is used for adjusting the initial roof photovoltaic model according to the optimal distance to obtain a visual roof photovoltaic model.
A third aspect of the present application provides an electronic device comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the rooftop photovoltaic visualization design method as described in any of the first aspects above when executing the computer program.
A fourth aspect of the present application provides a computer readable storage medium comprising a stored computer program, wherein the computer readable storage medium is controlled to perform the rooftop photovoltaic visualization design method according to any one of the first aspects, when the computer program is run.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
the application provides a method, a system, equipment and a medium for visual design of a roof photovoltaic, which are based on the layout design of a building roof, calculate the minimum front-back row spacing of a photovoltaic module through three-dimensional modeling, sunlight auxiliary analysis and visual expression of module information, not only can easily eliminate shadow shielding caused by front-back row modules, but also can solve the shadow shielding problem of modules in a field and surrounding buildings or other objects, and simultaneously determine the optimal inclination angle of the modules to acquire the radiation value of a lighting surface, reduce the generating capacity loss caused by the shadow shielding of the modules of a power station, and effectively improve the return on investment of the power station.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for designing a visual roof photovoltaic design according to an embodiment of the present application;
FIG. 2 is a flowchart of step S1 provided in an embodiment of the present application;
FIG. 3 is a cross-sectional view of a roof panel according to one embodiment of the present application;
FIG. 4 is a schematic view of a combined photovoltaic panel provided in accordance with an embodiment of the present application;
FIG. 5 is a flowchart of step S3 provided in one embodiment of the present application;
FIG. 6 is a flowchart of step S4 provided in one embodiment of the present application;
FIG. 7 is a diagram of a visual model of a rooftop photovoltaic provided in accordance with an embodiment of the present application;
FIG. 8 is a flow chart of capacity estimation according to an embodiment of the present application;
FIG. 9 is a device diagram of a rooftop photovoltaic visualization design system, according to an embodiment of the present application;
fig. 10 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings and examples, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be understood that the step numbers used herein are for convenience of description only and are not limiting as to the order in which the steps are performed.
It is to be understood that the terminology used in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In an embodiment, as shown in fig. 1, a first aspect of the present application provides a method for designing a photovoltaic display of a roof, including:
s1, carrying out three-dimensional modeling on roof photovoltaics and buildings in which the roof photovoltaics are positioned according to a building information model to obtain a roof photovoltaic building model;
in one embodiment, step S1, as shown in fig. 2, includes:
s11, building a building template through three-dimensional modeling software;
s12, adjusting the unit length of the building sample plate according to the roof photovoltaic information;
s13, building modeling is carried out in three-dimensional modeling software by taking the existing building information of the roof as a base map, and a roof photovoltaic building model is obtained;
generally, the revit design software is the most used software in domestic digital design, and because roof photovoltaics are arranged based on building roofs, revit plays an important role in roof arrangement design. The application also adopts the revit to carry out modeling, creates the building template through the revit, modifies the unit length of the building template, and then introduces the existing building CAD of the roof into the revit as a base map to carry out building modeling after processing. After the roof photovoltaic building model is completed, the roof board is distributed in a sectional view shown in fig. 3, and the design is aided by software, so that the roof board is simple, convenient and quick.
S2, building a photovoltaic module group according to a roof photovoltaic building model, building each photovoltaic module in the group, and generating a modularized prefabricated photovoltaic module model library;
in a specific embodiment, the photovoltaic module family comprises a family type, a family parameter, a square matrix group string with an inclination angle, a single pile, a pile with an inclination angle and a pile foundation;
the application uses the revit information modeling technology and uses the 'family' module in the software to classify the photovoltaic modules according to the production process and other modes, combines the component production process to build the information family module required by the photovoltaic specialty, and can adjust the information in the photovoltaic modules in real time by continuously and repeatedly forming the modularized prefabricated photovoltaic component model library, thereby improving the design efficiency and accuracy.
S3, extracting a plurality of photovoltaic modules from a modularized prefabricated photovoltaic module model library to arrange the photovoltaic modules, and obtaining a roof photovoltaic preliminary model;
in one embodiment, step S3, as shown in fig. 5, includes:
s31, extracting a plurality of photovoltaic modules from a modularized prefabricated photovoltaic module model library according to the relation between the size of the photovoltaic panel and the roof area;
s32, arranging a plurality of photovoltaic modules according to the heights of buildings around the roof to obtain a roof photovoltaic preliminary model;
according to the application, through establishing projects in the revit, the photovoltaic modules are directly extracted from the revit component model library according to the relation between the size of the photovoltaic panel and the roof area and assembled, excessive repeated actions are avoided, a plurality of photovoltaic modules are arranged according to the height of the roof surrounding building, and the shadow shielding problem caused by the surrounding building height difference or other objects on the components in the field is reduced.
S4, calculating the optimal distance between the photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof;
according to the application, the photovoltaic is arranged according to the initial model of the roof photovoltaic by adopting the revit, then the view is switched, the picture is adjusted, then the sunlight simulation is started, and after the time and place are set, the shadow shielding condition in the sunlight simulation process is observed. The specific operation process is as follows: switching to a three-dimensional view, adjusting the picture to be fine and real, and opening a shadow; then opening sunlight setting in sunlight research, setting time parameters, entering place setting by a user-defined button, and inputting a specific position of specific coordinates according to the actual position of the roof; after the setting, performing sunlight research, and checking the component shadow shielding condition of the whole field region when the time span is 9 a.m. to 15 a.m.; if the component is shielded, returning to the project model to perform unified standard adjustment until the component is not shielded in the time period.
In one embodiment, step S4, as shown in fig. 6, includes:
s41, acquiring illumination resource data of an area where a roof is located, wherein the illumination resource data comprise insolation intensity, solar radiation quantity and environmental temperature; the application adopts the solargis to download local optical resource data.
S42, calculating the total radiation stability of the horizontal plane of the photovoltaic panel in the roof photovoltaic preliminary model according to the insolation intensity; the method specifically comprises the following steps: establishing a weather station corresponding to the position of the roof by using photovoltaic system design auxiliary software; acquiring month irradiation quantity of a roof photovoltaic preliminary model in one year through a meteorological station; calculating the average daily irradiation quantity of each month according to the irradiation quantity of each month and the daily number of the current month; dividing the minimum average daily irradiation quantity by the maximum average daily irradiation quantity, and judging the range of the obtained result, thereby obtaining the total radiation stability of the horizontal plane of the photovoltaic panel in the roof photovoltaic preliminary model.
S43, adjusting the array inclination angle of the photovoltaic panel in the roof photovoltaic preliminary model through the total radiation stability of the horizontal plane and the simulated generating capacity of the roof photovoltaic preliminary model to obtain the optimal inclination angle of the photovoltaic panel; the optimal inclination angle of the photovoltaic panel corresponds to the level surface, the total radiation stability is C level or more, and the simulation generating capacity of the roof photovoltaic preliminary model is maximum.
The optimal distance is calculated by the following formula:
wherein D is the optimal distance; l is the length of the inclined plane of the photovoltaic array; beta is the optimal inclination angle of the photovoltaic panel in the photovoltaic array; phi is the latitude of the roof; m, N are all constant. Wherein M is preferably 0.707; n is preferably 0.4338.
According to the application, through parametric modeling of the revit, and the sunlight auxiliary analysis and the visual expression of the component information in the revit software, the minimum front-back row distance of the component is calculated, so that the shadow shielding caused by the front-back row component can be easily eliminated, and the shadow shielding problem caused by the height difference of buildings and other objects in the field area can be solved. The digital three-dimensional model enables the visual presentation of the design result, and meanwhile, whether the conflict design exists in different professions at different times or not can be verified, so that whether the conflict exists in the comprehensive network distribution of the electromechanical pipeline or not is greatly improved, and the design efficiency is greatly improved.
S5, adjusting the initial roof photovoltaic model according to the optimal distance to obtain a visual roof photovoltaic model; the roof photovoltaic visualization model diagram is shown in fig. 7.
In one embodiment, the capacity estimation process after step S5 is shown in fig. 8, and includes:
s61, calculating the radiation quantity on the photovoltaic module installation inclined plane in the roof photovoltaic visual model according to the illumination resource data and the latitude and longitude of the roof; the calculation of the generated energy of the photovoltaic power generation system is related to the local solar radiation amount, the total efficiency of the photovoltaic power generation system, the installation inclination angle of the photovoltaic square matrix and other factors. And the radiation quantity on the inclined surface of the assembly installation is calculated by utilizing design software according to the solar radiation quantity, the ambient temperature and the longitude and latitude of the place where the project is located.
S62, calculating the annual peak sunlight hours of the photovoltaic module in the roof photovoltaic visual model according to the radiation quantity and the standard solar radiation intensity; the calculation formula is as follows:
wherein t is the number of years of peak sunlight hours; h T The total solar radiation is the unit kWh/-square meter of the inclined plane; t (T) 0 Is the standard solar radiation intensity, unit 1000W/square meter (standard test condition of photovoltaic module).
S63, estimating the photovoltaic productivity of the roof photovoltaic visual model according to the annual peak sunlight hours to obtain the annual total power generation; the calculation formula is as follows:
L＝W×t×η
wherein L is annual total power generation; w is the installed capacity of the photovoltaic grid-connected power station; η is the total efficiency of the photovoltaic system.
According to the application, professional light resource data are obtained through the solargis software, a meteorological site is established in the PVsyst, basic design parameters such as assembly spacing, inclination angle and the like calculated in the PVsyst through the light resource data in the solargis, the light resource utilization hours, the power generation hours and the system efficiency of the project are obtained through the analysis function in the PVsyst, and the annual total power generation of the photovoltaic system is obtained, so that the photovoltaic informatization design and the photovoltaic productivity estimation design process are achieved, and a favorable support is provided for project development.
The embodiment of the application designs a visual design method of roof photovoltaic based on the problems of low construction and arrangement efficiency, low accuracy and shadow shielding of the existing roof photovoltaic, which realizes three-dimensional modeling of the roof photovoltaic and the building in which the roof photovoltaic is positioned according to a building information model to obtain a roof photovoltaic building model; creating a photovoltaic module group according to a roof photovoltaic building model, and building each photovoltaic module in the group to generate a modularized prefabricated photovoltaic module model library; extracting a plurality of photovoltaic modules from a modularized prefabricated photovoltaic module model library to arrange the photovoltaic modules, so as to obtain a roof photovoltaic preliminary model; calculating the optimal distance between photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof; adjusting the initial roof photovoltaic model according to the optimal distance to obtain the technical scheme of the visual roof photovoltaic model; through three-dimensional modeling, sunlight auxiliary analysis and visual expression of component information, the minimum front-back row distance of the photovoltaic component is calculated, so that shadow shielding caused by front-back row components can be easily eliminated, and the shadow shielding problem caused by height differences of buildings and other objects in a field area can be solved.
Although the steps in the flowcharts described above are shown in order as indicated by arrows, these steps are not necessarily executed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders.
In another embodiment, as shown in fig. 9, a second aspect of the present application provides a rooftop photovoltaic visualization design system, comprising:
the building model construction module 10 is used for carrying out three-dimensional modeling on the roof photovoltaic and the building where the roof photovoltaic is located according to the building information model to obtain a roof photovoltaic building model;
the module model library construction module 20 is used for creating a photovoltaic module group according to a roof photovoltaic building model, constructing each photovoltaic module in the group and generating a modularized prefabricated photovoltaic module model library;
the preliminary model construction module 30 is configured to extract a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library for arrangement, so as to obtain a roof photovoltaic preliminary model;
the optimal distance calculating module 40 is configured to calculate an optimal distance between arrays of photovoltaic panels according to the latitude of the roof and the inclination angle of the arrays of photovoltaic panels in the preliminary model of roof photovoltaic; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof;
the visualization model construction module 50 is configured to adjust the preliminary model of the roof photovoltaic according to the optimal distance to obtain a visualization model of the roof photovoltaic.
It should be noted that, each module in the above-mentioned system for designing a photovoltaic visualization based on a roof may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules. For a specific limitation of a roof photovoltaic visualization design system, see the limitation of a roof photovoltaic visualization design method above, the two have the same functions and roles, and are not described herein.
A third aspect of the present application provides an electronic device comprising:
a processor, a memory, and a bus;
the bus is used for connecting the processor and the memory;
the memory is used for storing operation instructions;
the processor is configured to, by invoking the operation instruction, cause the processor to execute an operation corresponding to a method for designing a rooftop photovoltaic visualization according to the first aspect of the present application.
In an alternative embodiment, an electronic device is provided, as shown in fig. 10, the electronic device 5000 shown in fig. 10 includes: a processor 5001 and a memory 5003. The processor 5001 is coupled to the memory 5003, e.g., via bus 5002. Optionally, the electronic device 5000 may also include a transceiver 5004. It should be noted that, in practical applications, the transceiver 5004 is not limited to one, and the structure of the electronic device 5000 is not limited to the embodiment of the present application.
The processor 5001 may be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with this disclosure. The processor 5001 may also be a combination of computing functions, e.g., including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.
Bus 5002 may include a path to transfer information between the aforementioned components. Bus 5002 may be a PCI bus or an EISA bus, among others. The bus 5002 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.
The memory 5003 may be, but is not limited to, ROM or other type of static storage device, RAM or other type of dynamic storage device, which can store static information and instructions, EEPROM, CD-ROM or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disc, etc.), magnetic disk storage or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by a computer.
The memory 5003 is used for storing application program codes for implementing the inventive arrangements and is controlled to be executed by the processor 5001. The processor 5001 is operative to execute application code stored in the memory 5003 to implement what has been shown in any of the method embodiments described previously.
Among them, electronic devices include, but are not limited to: mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and stationary terminals such as digital TVs, desktop computers, and the like.
A fourth aspect of the application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements a rooftop photovoltaic visualization design method as shown in the first aspect of the application.
Yet another embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program which, when run on a computer, causes the computer to perform the corresponding ones of the foregoing method embodiments.
Furthermore, an embodiment of the present application proposes a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements the steps of the above-mentioned method.
In summary, the application relates to the technical field of building photovoltaic simulation, and discloses a method, a system, equipment and a medium for designing a roof photovoltaic visualization, wherein the method comprises the following steps: carrying out three-dimensional modeling on roof photovoltaics and the building where the roof photovoltaics are positioned according to the building information model to obtain a roof photovoltaic building model; creating a photovoltaic module group according to a roof photovoltaic building model, and building each photovoltaic module in the group to generate a modularized prefabricated photovoltaic module model library; extracting a plurality of photovoltaic modules from a modularized prefabricated photovoltaic module model library to arrange the photovoltaic modules, so as to obtain a roof photovoltaic preliminary model; calculating the optimal distance between photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; and adjusting the initial roof photovoltaic model according to the optimal distance to obtain the visual roof photovoltaic model. The application reduces the generating capacity loss of the photovoltaic power station caused by component shadow shielding and effectively improves the return on investment of the power station.
In this specification, each embodiment is described in a progressive manner, and all the embodiments are directly the same or similar parts referring to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments. It should be noted that, any combination of the technical features of the foregoing embodiments may be used, and for brevity, all of the possible combinations of the technical features of the foregoing embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples represent only a few preferred embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and such modifications and substitutions should also be considered to be within the scope of the present application. Therefore, the protection scope of the patent of the application is subject to the protection scope of the claims.
Claims (10)
1. A method of roof photovoltaic visualization design, comprising:
carrying out three-dimensional modeling on roof photovoltaics and the building where the roof photovoltaics are positioned according to the building information model to obtain a roof photovoltaic building model;
creating a photovoltaic module group according to the roof photovoltaic building model, and building each photovoltaic module in the group to generate a modularized prefabricated photovoltaic module model library;
extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library to arrange the photovoltaic modules, so as to obtain a roof photovoltaic preliminary model;
calculating the optimal distance between photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof;
and adjusting the initial roof photovoltaic model according to the optimal distance to obtain a visual roof photovoltaic model.
2. The method for visual design of roof photovoltaic according to claim 1, wherein the three-dimensional modeling of roof photovoltaic and the building in which the roof photovoltaic is located according to the building information model to obtain a roof photovoltaic building model comprises the following steps:
building a building template through three-dimensional modeling software;
adjusting the unit length of the building sample plate according to the roof photovoltaic information;
and building modeling is carried out in the three-dimensional modeling software by taking the existing building information of the roof as a base map, so as to obtain a roof photovoltaic building model.
3. The method of claim 1, wherein the photovoltaic module family comprises a family type, a family parameter, a matrix string with an inclination angle, a single pile, a pile with an inclination angle, and a pile foundation.
4. The method for visual design of roof photovoltaic according to claim 3, wherein the extracting a plurality of photovoltaic modules from the modular prefabricated photovoltaic module model library for arrangement to obtain a preliminary model of roof photovoltaic comprises:
extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library according to the relation between the size of the photovoltaic panel and the roof area;
and arranging a plurality of photovoltaic modules according to the heights of the buildings around the roof to obtain a roof photovoltaic preliminary model.
5. The method for designing a visual roof photovoltaic system according to claim 1, wherein the step of determining the array inclination angle of the photovoltaic panels in the preliminary model of the roof photovoltaic system according to the latitude of the roof comprises:
acquiring illumination resource data of an area where the roof is located, wherein the illumination resource data comprises insolation intensity, solar radiation quantity and environmental temperature;
calculating the total radiation stability of the horizontal plane of the photovoltaic panel in the roof photovoltaic preliminary model according to the insolation intensity;
and adjusting the array inclination angle of the photovoltaic panel in the roof photovoltaic preliminary model through the total radiation stability of the horizontal plane and the simulated generating capacity of the roof photovoltaic preliminary model to obtain the optimal inclination angle of the photovoltaic panel.
6. The method of claim 5, wherein the optimal distance is calculated by the following equation:
wherein D is the optimal distance; l is the length of the inclined plane of the photovoltaic array; beta is the optimal inclination angle of the photovoltaic panel in the photovoltaic array; phi is the latitude of the roof; m, N are all constant.
7. The method for designing a roof photovoltaic visualization according to claim 5, wherein the adjusting the preliminary model of the roof photovoltaic according to the optimal distance, after obtaining the model of the roof photovoltaic visualization, comprises:
according to the illumination resource data and the latitude and longitude of the roof, calculating the radiation quantity on the photovoltaic module installation inclined plane in the roof photovoltaic visual model;
calculating the annual peak sunlight hours of the photovoltaic module in the roof photovoltaic visual model according to the radiation quantity and the standard solar radiation intensity;
and estimating the photovoltaic productivity of the roof photovoltaic visual model according to the annual peak sunlight hours to obtain the annual total power generation.
8. A rooftop photovoltaic visualization design system, comprising:
the building model construction module is used for carrying out three-dimensional modeling on the roof photovoltaic and the building where the roof photovoltaic is located according to the building information model to obtain a roof photovoltaic building model;
the module model library construction module is used for creating a photovoltaic module group according to the roof photovoltaic building model, constructing each photovoltaic module in the group and generating a modularized prefabricated photovoltaic module model library;
the preliminary model construction module is used for extracting a plurality of photovoltaic modules from the modularized prefabricated photovoltaic module model library to be arranged, so as to obtain a roof photovoltaic preliminary model;
the optimal distance calculation module is used for calculating the optimal distance between the photovoltaic panel arrays according to the latitude of the roof and the array inclination angle of the photovoltaic panels in the roof photovoltaic preliminary model; the optimal distance is the front-back row spacing of the components when each component in the photovoltaic panel array is not shielded by shadow under the simulated real illumination according to the latitude of the roof;
and the visualization model construction module is used for adjusting the initial roof photovoltaic model according to the optimal distance to obtain a visual roof photovoltaic model.
9. An electronic device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the rooftop photovoltaic visualization design method of any of claims 1-7 when the computer program is executed.
10. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored computer program, wherein the computer program, when run, controls a device in which the computer readable storage medium is located to perform the rooftop photovoltaic visualization design method according to any one of claims 1-7.
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| CN117749084A (en) * | 2023-12-07 | 2024-03-22 | 贵州建工集团第四建筑工程有限责任公司 | Roof monocrystalline silicon building construction method and system |
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| CN117749084A (en) * | 2023-12-07 | 2024-03-22 | 贵州建工集团第四建筑工程有限责任公司 | Roof monocrystalline silicon building construction method and system |
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