CN117786909A - CAD-based photovoltaic system rapid arrangement method and device - Google Patents

Abstract

The method comprises the steps of retrieving corresponding city preset parameter data in a database according to city names input by a user, and retrieving corresponding photovoltaic module preset parameter data in the database according to the names of the photovoltaic modules input by the user; calculating the arrangement distance of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data; combining the calculated arrangement distance of the photovoltaic modules and the screened final arrangement area of the photovoltaic modules, and arranging the photovoltaic modules in a CAD drawing space of the final arrangement area; and according to the arrangement condition of the photovoltaic modules in the CAD drawing space, invoking city preset parameter data and photovoltaic module preset parameter data, and calculating annual average power generation capacity of the photovoltaic modules. The invention saves time of a designer, and is convenient for the designer to draw the photovoltaic module in CAD and calculate the generating capacity of the photovoltaic system.

Description

CAD-based photovoltaic system rapid arrangement method and device

Technical Field

The invention belongs to the technical field of photovoltaic system processing, and particularly relates to a CAD-based photovoltaic system rapid arrangement method and device.

Background

At present, most of existing distributed photovoltaic calculation simulation schemes, such as PVSyst, PVSOL and the like, are of foreign software architecture and do not accord with the operation habit of domestic designers. Such software is more focused on simulation and computation than building electrical design.

In China, the designers mostly use CAD to conduct electrical design drawing, and cannot communicate with the results of foreign computing simulation software. In addition, foreign software is expensive, and the software has large functions and complex operation, so that domestic designers use the software rarely. Most still use CAD for rendering, however, CAD has few photovoltaic rendering tools and manual rendering is relatively inconvenient.

Furthermore, in practical terms, the situation of building roofs is often very complex, the roofs being spread over the machine room, the electromechanical devices and the roof greening, the area where the photovoltaic can actually be arranged being limited and irregular. Engineers can waste a great deal of time on modeling of foreign photovoltaic design simulation software, after modeling is completed, the result cannot be directly imported into a CAD drawing space region, and the result is redrawn in the CAD drawing space, so that the workload is wasted.

Disclosure of Invention

Therefore, the invention provides a method and a device for quickly arranging a photovoltaic system based on CAD, which solve the problems that the traditional photovoltaic design simulation software is not tightly combined with the CAD, cannot be communicated with each other, is inconvenient to use and causes waste of workload.

In order to achieve the above object, the present invention provides the following technical solutions: the CAD-based photovoltaic system rapid arrangement method comprises the following steps:

constructing a basic database, wherein the basic database comprises city class data and photovoltaic module class data, the city class data comprises city names and city preset parameter data, and the photovoltaic module class data comprises photovoltaic module names and photovoltaic module preset parameter data;

corresponding city preset parameter data are called according to the city names input by the users, and corresponding photovoltaic module preset parameter data are called according to the photovoltaic module names input by the users;

calculating the arrangement distance of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data;

dividing an irregular photovoltaic region in which the photovoltaic modules are arranged, and screening a final arrangement region in which the photovoltaic modules are arranged from the divided irregular photovoltaic region;

combining the calculated arrangement distance of the photovoltaic modules and the screened final arrangement area of the photovoltaic modules, and arranging the photovoltaic modules in a CAD drawing space of the final arrangement area;

and according to the arrangement condition of the photovoltaic modules in the CAD drawing space, invoking city preset parameter data and photovoltaic module preset parameter data, and calculating annual average power generation capacity of the photovoltaic modules.

As a preferred scheme of the CAD-based rapid photovoltaic system arrangement method, city preset parameter data in the city data comprise city latitude, city solar altitude angle, city photovoltaic module installation optimal inclination angle and photovoltaic module unit generating capacity under city solar irradiation intensity;

the photovoltaic module preset parameter data in the photovoltaic module type data comprise the length of the specified type of photovoltaic module, the width of the specified type of photovoltaic module and the installation capacity of the specified type of photovoltaic module.

As a preferred scheme of the CAD-based photovoltaic system rapid arrangement method, city data and photovoltaic module data in the basic database are obtained from a specification and a sample report;

performing de-duplication and outlier preprocessing on the city class data and the photovoltaic module class data which are obtained from the basic database;

and converting the city data and the photovoltaic module data in the preprocessed basic database into a data table form of SQLlite for storage.

As a preferred scheme of the CAD-based photovoltaic system rapid arrangement method, the method further comprises the steps of constructing a query window, receiving query keywords or query conditions input by a user through the constructed query window, and searching city class data and photovoltaic module class data meeting the query conditions by utilizing the established index keywords.

As a preferred scheme of the CAD-based photovoltaic system rapid arrangement method, the calculation formula for the photovoltaic module arrangement distance D is as follows:

D＝Lcosβ+Lsinβ(0.707tanφ+0.4338)/(0.707-0.4338tanφ)

wherein L is the inclined plane length of the photovoltaic module; beta is the installation inclination angle of the photovoltaic module, and phi is the local latitude.

As a preferred scheme of the CAD-based photovoltaic system rapid arrangement method, the calculation formula for the photovoltaic module arrangement distance D is as follows:

D≥Hcotαcosγ

wherein H is the vertical distance between the highest point of the obstacle or front row photovoltaic module and the lowest point of the light receiving surface of the photovoltaic module, and alpha is the solar altitude angle; and gamma is the installation azimuth angle of the photovoltaic module.

As a preferred scheme of the CAD-based photovoltaic system rapid arrangement method, in the process of dividing the irregular photovoltaic area in which the photovoltaic modules are arranged:

picking up polygonal closed contour lines of an irregular photovoltaic area, dividing by adopting an inscribed orthogonal rectangular algorithm, and generating a marking matrix of 0 and 1 by utilizing a point set matrix; judging the area of inscribing the orthogonal rectangles by the marking matrix, and inquiring the rectangle with the largest area as the largest photovoltaic module arranging area;

the areas which do not meet the area and shape requirements are discarded through the area and shape screening of the segmented areas, and a final arrangement area for arranging the photovoltaic modules is obtained; and calculating the number of rows and columns of the photovoltaic modules with specified sizes and the specified spacing requirements by using the final arrangement areas obtained by screening.

As a preferred scheme of the rapid layout method of the photovoltaic system based on CAD, the blocks of the photovoltaic module are uniformly arranged in groups according to the number of rows and columns in CAD drawing space of the final layout area which is screened after being divided.

As a preferred scheme of the CAD-based photovoltaic system rapid arrangement method, the annual average power generation of the photovoltaic module is calculated according to the following formula:

W＝P×S×K1×K2

wherein P is annual average power generation of the city where the photovoltaic is located; s is the total capacity of the photovoltaic installation; k1 is the installation inclination correction coefficient of the photovoltaic; k2 is a photovoltaic type correction factor.

The invention also provides a CAD-based photovoltaic system rapid arrangement device, which adopts the CAD-based photovoltaic system rapid arrangement method, comprising the following steps:

the system comprises a database construction module, a database management module and a database management module, wherein the database construction module is used for constructing a basic database, the basic database comprises city class data and photovoltaic module class data, the city class data comprises city names and city preset parameter data, and the photovoltaic module class data comprises photovoltaic module names and photovoltaic module preset parameter data;

the parameter calling module is used for calling corresponding city preset parameter data according to the city name input by the user and calling corresponding photovoltaic module preset parameter data according to the photovoltaic module name input by the user;

the arrangement interval analysis module is used for calculating the arrangement interval of the photovoltaic modules according to a specified specification or a calculation method of an atlas by utilizing the acquired city preset parameter data and the photovoltaic module preset parameter data;

the distribution area processing module is used for dividing an irregular photovoltaic area in which the photovoltaic modules are arranged and screening out a final arrangement area in which the photovoltaic modules are arranged from the divided irregular photovoltaic area;

the photovoltaic module arrangement module is used for combining the calculated photovoltaic module arrangement distance and the screened photovoltaic module final arrangement area, and arranging the photovoltaic module in the CAD drawing space of the final arrangement area;

and the generating capacity analysis module is used for calling city preset parameter data and photovoltaic module preset parameter data according to the arrangement condition of the photovoltaic modules in the CAD drawing space, and calculating annual average generating capacity of the photovoltaic modules.

The method has the beneficial effects that a basic database is constructed, the basic database comprises city data and photovoltaic module data, the city data comprises city names and city preset parameter data, and the photovoltaic module data comprises the photovoltaic module names and the photovoltaic module preset parameter data; corresponding city preset parameter data are called according to the city names input by the users, and corresponding photovoltaic module preset parameter data are called according to the photovoltaic module names input by the users; calculating the arrangement distance of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data; dividing an irregular photovoltaic region in which the photovoltaic modules are arranged, and screening a final arrangement region in which the photovoltaic modules are arranged from the divided irregular photovoltaic region; combining the calculated arrangement distance of the photovoltaic modules and the screened final arrangement area of the photovoltaic modules, and arranging the photovoltaic modules in a CAD drawing space of the final arrangement area; and according to the arrangement condition of the photovoltaic modules in the CAD drawing space, invoking city preset parameter data and photovoltaic module preset parameter data, and calculating annual average power generation capacity of the photovoltaic modules. The invention saves the time of a designer, is convenient for the designer to draw the photovoltaic module in CAD and calculate the generating capacity of the photovoltaic system, so that the formulation of the photovoltaic scheme becomes foolproof, the designer who does not understand the design of the photovoltaic system can also conveniently obtain the primary scheme of the photovoltaic system; the method is beneficial to completing the preliminary design of the photovoltaic system under the condition of no cooperation of building electrical engineers or professional software, and grasping the data of the photovoltaic system and the influence of the photovoltaic system on the whole building.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the scope of the invention.

Fig. 1 is a schematic flow chart of a rapid layout method of a CAD-based photovoltaic system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an urban selection interface in a rapid layout method of a CAD-based photovoltaic system according to an embodiment of the present invention;

fig. 3 is an interface for adjusting city parameters in the rapid layout method of a CAD-based photovoltaic system according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a photovoltaic module definition interface in a CAD-based rapid placement method of a photovoltaic system according to an embodiment of the present invention;

fig. 5 is a view of a photovoltaic module selection interface in a CAD-based rapid placement method of a photovoltaic system provided by an embodiment of the present invention;

fig. 6 is a region segmentation interface in the CAD-based rapid placement method of a photovoltaic system according to an embodiment of the present invention;

fig. 7 is a layout interface of a photovoltaic module in the CAD-based rapid layout method of a photovoltaic system according to an embodiment of the present invention;

FIG. 8 is an interface for analyzing the power generation in a CAD-based photovoltaic system rapid placement method according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a rapid layout device architecture of a CAD-based photovoltaic system according to an embodiment of the present invention.

Detailed Description

Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1, 2, 3, 4, 5, 6, 7 and 8, embodiment 1 of the present invention provides a rapid placement method for a CAD-based photovoltaic system, including the steps of:

s1, constructing a basic database, wherein the basic database comprises city data and photovoltaic module data, the city data comprises city names and city preset parameter data, and the photovoltaic module data comprises photovoltaic module names and photovoltaic module preset parameter data;

s2, corresponding city preset parameter data are called according to the city names input by the users, and corresponding photovoltaic module preset parameter data are called according to the photovoltaic module names input by the users;

s3, calculating the arrangement distance of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data;

s4, dividing an irregular photovoltaic region in which the photovoltaic modules are arranged, and screening a final arrangement region in which the photovoltaic modules are arranged from the divided irregular photovoltaic region;

s5, combining the calculated arrangement distance of the photovoltaic modules and the screened final arrangement area of the photovoltaic modules, and arranging the photovoltaic modules in a CAD drawing space of the final arrangement area;

and S6, according to the arrangement condition of the photovoltaic modules in the CAD drawing space, invoking city preset parameter data and photovoltaic module preset parameter data, and calculating annual average power generation capacity of the photovoltaic modules.

In this embodiment, the city preset parameter data in the city data includes city latitude, city solar altitude, city photovoltaic module installation optimum inclination angle and photovoltaic module unit power generation under city solar irradiation intensity;

the photovoltaic module preset parameter data in the photovoltaic module type data comprise the length of the specified type of photovoltaic module, the width of the specified type of photovoltaic module and the installation capacity of the specified type of photovoltaic module.

Specifically, in step S1, a small-sized basic database is constructed, two types of data are counted in the basic database, the first type is city type data, the first type includes related parameters of main cities in each province of China, each city includes 5 parameters, city names, city solar altitude angles corresponding to the city names, an optimal inclination angle for installing a city photovoltaic module and unit power generation of the photovoltaic module under the city solar irradiation intensity. The remaining parameters can be retrieved for calculation by retrieving or selecting city names. All the data are derived from the statistics report of photovoltaic power generation data in the adjacent year or the basic information of cities. The second category is photovoltaic module class data, which contains photovoltaic module names, such as monocrystalline silicon, polycrystalline silicon and cadmium telluride. The photovoltaic module name is used as an index word for a user to search, wherein the length of the photovoltaic module of the appointed type, the width of the photovoltaic module of the appointed type and the installation capacity of the photovoltaic module of the appointed type are corresponding to the name of each photovoltaic module.

The city data and the photovoltaic module data are both allowed to be user-defined, and the construction of the basic database enables the user not to laboriously search needed data from the specifications or books when designing the photovoltaic system.

In one possible embodiment, at step S1, city class data and photovoltaic module class data in the base database are obtained from specification and sample reports;

performing de-duplication and outlier preprocessing on the city class data and the photovoltaic module class data which are obtained from the basic database;

and converting the city data and the photovoltaic module data in the preprocessed basic database into a data table form of SQLlite for storage.

Specifically, when the basic database is built, firstly, the data source is acquired from the specification and the sample report, so that the diversity and the reliability of the data are ensured. These data sources are then initially screened to remove outliers in which duplicates and divergences are excessive to maintain quality and consistency of the data. The processed data is then converted to a data table format of sql lite for storage so that the data may be more conveniently organized and recalled.

The CAD software and the base database may be connected by writing the call code using the NETAPI of the CAD, and referring to fig. 2, 3, 4, 5, 6, 7, and 8 again, the interface effect display is applied for the combination of the CAD software and the base database.

In this embodiment, in step S2, the method further includes performing query window construction, receiving a query keyword or a query condition input by a user through the constructed query window, and retrieving city class data and photovoltaic module class data satisfying the query condition by using the established index keyword.

Referring to fig. 2, 3, 4, 5, and 6, a query form is created in CAD software to receive a user query request. The user can input keywords or conditions through the window, the data meeting the conditions can be quickly searched through the established index keywords, and the user can quickly and accurately find related data according to the needs.

In one possible embodiment, in step S3, a calculation formula provided in the specification "design specification for photovoltaic power station" GB 50797 is used, where the calculation formula for the photovoltaic module arrangement pitch D is:

D＝Lcosβ+Lsinβ(0.707tanφ+0.4338)/(0.707-0.4338tanφ)

wherein L is the inclined plane length of the photovoltaic module; beta is the installation inclination angle of the photovoltaic module, and phi is the local latitude. It can be ensured that the solar cells are not shielded between 9:00 and 15:00 photovoltaic modules on the day of winter to day each year.

In one possible embodiment, in step S3, a calculation formula is provided by using the atlas "building solar photovoltaic System design and installation" 16J908-5, wherein the calculation formula for the photovoltaic module arrangement distance D is:

D≥Hcotαcosγ

wherein H is the vertical distance between the highest point of the obstacle or front row photovoltaic module and the lowest point of the light receiving surface of the photovoltaic module, and alpha is the solar altitude angle; and gamma is the installation azimuth angle of the photovoltaic module. Ensuring that the photovoltaic modules are not shielded during the day from winter to day 12:00 of the sun each year.

The calculation formulas of the arrangement distance D of the two groups of photovoltaic modules are input into CAD software, so that a user can conveniently select and calculate the calculation formulas.

In this embodiment, in step S4, in the process of dividing the irregular photovoltaic region in which the photovoltaic module is arranged:

picking up polygonal closed contour lines of an irregular photovoltaic area, dividing by adopting an inscribed orthogonal rectangular algorithm, and generating a marking matrix of 0 and 1 by utilizing a point set matrix; judging the area of inscribing the orthogonal rectangles by the marking matrix, and inquiring the rectangle with the largest area as the largest photovoltaic module arranging area;

the areas which do not meet the area and shape requirements are discarded through the area and shape screening of the segmented areas, and a final arrangement area for arranging the photovoltaic modules is obtained; and calculating the number of rows and columns of the photovoltaic modules with specified sizes and the specified spacing requirements by using the final arrangement areas obtained by screening.

In step S5, the blocks of the photovoltaic module are uniformly arranged in groups according to the number of rows and columns in the CAD drawing space of the final arrangement area selected after the segmentation.

Referring to fig. 5 and 6, specifically, a polygon-enclosed outline of an irregular area is picked up in CAD drawing software, and is divided by adopting an inscribed orthogonal rectangular algorithm, mainly by using a point set matrix, a marker matrix with only 0 and 1 is generated, then the area is judged by the marker matrix, the largest rectangle is continuously queried, the queried largest rectangle is deleted (the matrix is changed to 0, and corner points are transmitted to a quadtree query), a selected outline object is obtained, and each selected largest rectangle deleted by the outline object is the searched largest area for arranging the photovoltaic module.

The method comprises the steps of screening the segmented areas through the area and the shape, discarding the areas where the photovoltaic modules cannot be arranged, calculating the number of rows and the number of columns of the photovoltaic modules with the set size and under the condition of the set spacing requirement through the screened areas, subtracting the spacing space around the length and the width of the rows, dividing the length and the width of each group of modules by the spacing, and obtaining the real number downward rounding. Meanwhile, the projection areas of the photovoltaic module under different installation dip angles are calculated, the image blocks of the photovoltaic module are made in advance, corresponding calculation parameters are input, the image blocks of the photovoltaic module are inserted into CAD software through software commands, the CAD drawing spaces of the final arrangement areas which are screened out after division are uniformly arranged in groups according to the number of rows and the number of columns, and the projection areas are scaled. And then circularly executing the command to finish uniform distribution arrangement on the rest divided irregular areas, wherein the arrangement is full of the whole arrangeable space. The entire command is completed.

The quadtree query is a method for quickly searching space data, and a quadtree structure is adopted to divide the space. Quadtree is a data structure having a maximum of four sub-trees per node, typically subdividing a two-dimensional space into four quadrants or regions, and storing information about the regions into the quadtree nodes. These areas may be square, rectangular or of any shape. When the quadtree is queried, firstly, the space data to be searched is converted into a quadtree structure, and then the space data is searched according to the hierarchy structure of the quadtree. And comparing the coordinates of the target data with the coordinates of the nodes of the quadtree to judge which node the target data is positioned on, so that the searching range is reduced, and the searching efficiency is improved.

In this embodiment, in step S6, the relevant parameters of the city selected by the user are called from the base database. Counting the number of different photovoltaic modules, reading the installation inclination angles of the photovoltaic modules and the installation capacity of the photovoltaic modules, calculating the total photovoltaic capacity of the different inclination angles, calculating the general photovoltaic power generation amount by adopting a formula provided in GB 50797 of the design Specification of photovoltaic power stations, calculating the power generation amount of the photovoltaic modules of cities by adopting the power generation amount of the photovoltaic modules of the cities, wherein data are derived from statistics data reports of the power generation amounts of the photovoltaic power stations of different cities in the years, and the data are combined with the installation inclination angles of the photovoltaic modules, and correspondingly correcting and reducing the capacity of a photovoltaic total assembly machine to obtain the total power generation amount of the photovoltaic system of the project, wherein the formula for calculating the annual average power generation amount of the photovoltaic modules is as follows:

W＝P×S×K1×K2

wherein P is annual average power generation of the city where the photovoltaic is located; s is the total capacity of the photovoltaic installation; k1 is the installation inclination correction coefficient of the photovoltaic; k2 is a photovoltaic type correction factor. And finally, displaying the calculation result to the user through the corresponding window, so as to achieve the purposes of helping the user to quickly arrange the photovoltaic module and solving the corresponding power generation amount.

In summary, by constructing the basic database, the basic database comprises city data and photovoltaic module data, the city data comprises city names and city preset parameter data, and the photovoltaic module data comprises photovoltaic module names and photovoltaic module preset parameter data; corresponding city preset parameter data are called according to the city names input by the users, and corresponding photovoltaic module preset parameter data are called according to the photovoltaic module names input by the users; calculating the arrangement distance of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data; dividing an irregular photovoltaic region in which the photovoltaic modules are arranged, and screening a final arrangement region in which the photovoltaic modules are arranged from the divided irregular photovoltaic region; combining the calculated arrangement distance of the photovoltaic modules and the screened final arrangement area of the photovoltaic modules, and arranging the photovoltaic modules in a CAD drawing space of the final arrangement area; and according to the arrangement condition of the photovoltaic modules in the CAD drawing space, invoking city preset parameter data and photovoltaic module preset parameter data, and calculating annual average power generation capacity of the photovoltaic modules. The invention saves the time of a designer, is convenient for the designer to draw the photovoltaic module in CAD and calculate the generating capacity of the photovoltaic system, so that the formulation of the photovoltaic scheme becomes foolproof, the designer who does not understand the design of the photovoltaic system can also conveniently obtain the primary scheme of the photovoltaic system; the method is beneficial to completing the preliminary design of the photovoltaic system under the condition of no cooperation of building electrical engineers or professional software, and grasping the data of the photovoltaic system and the influence of the photovoltaic system on the whole building. The invention does not need to expend effort to search parameters, calculated parameters, data and formulas required by arranging the photovoltaic module in the specification and the book; after the design key parameters can be selected in CAD software, the spacing is calculated by one key, the irregular arrangement space is decomposed, the arrangement is completed, and the time of a designer is saved. Meanwhile, a designer can conveniently draw the photovoltaic module in CAD and calculate the generating capacity of the photovoltaic system, so that the establishment of a photovoltaic scheme becomes foolproof; for designers who do not understand the design of the photovoltaic system, the preliminary scheme of the photovoltaic system can be obtained conveniently, the preliminary design of the photovoltaic system can be finished by themselves under the condition that no building electrical engineer cooperates or professional software exists, and the data of the photovoltaic system and the influence of the photovoltaic system on the whole building are mastered.

It should be noted that the method of the embodiments of the present disclosure may be performed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the methods of embodiments of the present disclosure, the devices interacting with each other to accomplish the methods.

It should be noted that the foregoing describes some embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Example 2

Referring to fig. 9, embodiment 2 of the present invention provides a CAD-based rapid photovoltaic system arranging apparatus, which adopts the CAD-based rapid photovoltaic system arranging method of embodiment 1 described above, and includes:

the database construction module 001 is used for constructing a basic database, wherein the basic database comprises city class data and photovoltaic module class data, the city class data comprises city names and city preset parameter data, and the photovoltaic module class data comprises photovoltaic module names and photovoltaic module preset parameter data;

the parameter calling module 002 is configured to call corresponding city preset parameter data according to the city name input by the user, and call corresponding photovoltaic module preset parameter data according to the photovoltaic module name input by the user;

the arrangement space analysis module 003 is used for calculating the arrangement space of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data;

the distribution area processing module 004 is used for dividing the irregular photovoltaic areas where the photovoltaic modules are arranged, and screening out the final arrangement areas where the photovoltaic modules are arranged from the divided irregular photovoltaic areas;

the photovoltaic module arrangement module 005 is configured to combine the calculated photovoltaic module arrangement pitch and the screened photovoltaic module final arrangement area, and arrange the photovoltaic module in the CAD drawing space of the final arrangement area;

the generating capacity analysis module 006 is used for calling city preset parameter data and photovoltaic module preset parameter data according to the arrangement condition of the photovoltaic modules in the CAD drawing space, and calculating annual average generating capacity of the photovoltaic modules.

In this embodiment, in the database construction module 001, the city preset parameter data in the city data includes a city latitude, a city solar altitude angle, an optimum inclination angle for installing a city photovoltaic module, and a unit power generation amount of the photovoltaic module under the irradiation intensity of the city solar;

the photovoltaic module preset parameter data in the photovoltaic module type data comprise the length of the specified type of photovoltaic module, the width of the specified type of photovoltaic module and the installation capacity of the specified type of photovoltaic module.

In this embodiment, in the database construction module 001, city class data and photovoltaic module class data in the basic database are obtained from a specification and a sample report;

performing de-duplication and outlier preprocessing on the city class data and the photovoltaic module class data which are obtained from the basic database;

and converting the city data and the photovoltaic module data in the preprocessed basic database into a data table form of SQLlite for storage.

In this embodiment, in the parameter retrieving module 002, a query window is constructed, a query keyword or a query condition input by a user is received through the constructed query window, and the city class data and the photovoltaic module class data satisfying the query condition are retrieved by using the established index keyword.

In one possible embodiment, in the arrangement pitch analysis module 003, the calculation formula for the photovoltaic module arrangement pitch D is as follows:

D＝Lcosβ+Lsinβ(0.707tanφ+0.4338)/(0.707-0.4338tanφ)

wherein L is the inclined plane length of the photovoltaic module; beta is the installation inclination angle of the photovoltaic module, and phi is the local latitude.

In one possible embodiment, in the arrangement pitch analysis module 003, the calculation formula for the photovoltaic module arrangement pitch D is as follows:

D≥Hcotαcosγ

wherein H is the vertical distance between the highest point of the obstacle or front row photovoltaic module and the lowest point of the light receiving surface of the photovoltaic module, and alpha is the solar altitude angle; and gamma is the installation azimuth angle of the photovoltaic module.

In this embodiment, in the distributed area processing module 004:

picking up polygonal closed contour lines of an irregular photovoltaic area, dividing by adopting an inscribed orthogonal rectangular algorithm, and generating a marking matrix of 0 and 1 by utilizing a point set matrix; judging the area of inscribing the orthogonal rectangles by the marking matrix, and inquiring the rectangle with the largest area as the largest photovoltaic module arranging area;

the areas which do not meet the area and shape requirements are discarded through the area and shape screening of the segmented areas, and a final arrangement area for arranging the photovoltaic modules is obtained; and calculating the number of rows and columns of the photovoltaic modules with specified sizes and the specified spacing requirements by using the final arrangement areas obtained by screening.

In this embodiment, in the photovoltaic module arrangement module 005, the blocks of the photovoltaic module are uniformly arranged in groups according to the number of rows and the number of columns in the CAD drawing space of the final arrangement area which is selected after the segmentation.

In this embodiment, in the power generation amount analysis module 006, the formula for calculating the annual average power generation amount of the photovoltaic module is:

W＝P×S×K1×K2

wherein P is annual average power generation of the city where the photovoltaic is located; s is the total capacity of the photovoltaic installation; k1 is the installation inclination correction coefficient of the photovoltaic; k2 is a photovoltaic type correction factor.

It should be noted that, because the content of information interaction and execution process between the modules of the above-mentioned apparatus is based on the same concept as the method embodiment in embodiment 1 of the present application, the technical effects brought by the content are the same as the method embodiment of the present application, and specific content can be referred to the description in the foregoing illustrated method embodiment of the present application, which is not repeated herein.

Example 3

Embodiment 3 of the present invention provides a non-transitory computer readable storage medium having stored therein program code for a CAD-based rapid placement method of a photovoltaic system, the program code comprising instructions for performing the CAD-based rapid placement method of the photovoltaic system of embodiment 1 or any possible implementation thereof.

Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk, SSD), etc.

Example 4

Embodiment 4 of the present invention provides an electronic device, including: a memory and a processor;

the processor and the memory complete communication with each other through a bus; the memory stores program instructions executable by the processor that invoke the program instructions to perform the CAD-based photovoltaic system rapid placement method of embodiment 1 or any possible implementation thereof.

Specifically, the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and which may reside separately.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.).

It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a memory device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps within them may be fabricated into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.

Claims (10)

1. The CAD-based photovoltaic system rapid arrangement method is characterized by comprising the following steps of:

constructing a basic database, wherein the basic database comprises city class data and photovoltaic module class data, the city class data comprises city names and city preset parameter data, and the photovoltaic module class data comprises photovoltaic module names and photovoltaic module preset parameter data;

corresponding city preset parameter data are called according to the city names input by the users, and corresponding photovoltaic module preset parameter data are called according to the photovoltaic module names input by the users;

calculating the arrangement distance of the photovoltaic modules according to a specified specification or a calculation method of an atlas by using the acquired city preset parameter data and the photovoltaic module preset parameter data;

dividing an irregular photovoltaic region in which the photovoltaic modules are arranged, and screening a final arrangement region in which the photovoltaic modules are arranged from the divided irregular photovoltaic region;

combining the calculated arrangement distance of the photovoltaic modules and the screened final arrangement area of the photovoltaic modules, and arranging the photovoltaic modules in a CAD drawing space of the final arrangement area;

and according to the arrangement condition of the photovoltaic modules in the CAD drawing space, invoking city preset parameter data and photovoltaic module preset parameter data, and calculating annual average power generation capacity of the photovoltaic modules.

2. The rapid placement method of CAD-based photovoltaic systems according to claim 1, wherein the city preset parameter data in the city data includes city latitude, city solar altitude, city photovoltaic module installation optimum inclination angle and photovoltaic module unit power generation under city solar irradiation intensity;

the photovoltaic module preset parameter data in the photovoltaic module type data comprise the length of the specified type of photovoltaic module, the width of the specified type of photovoltaic module and the installation capacity of the specified type of photovoltaic module.

3. The CAD-based rapid placement of photovoltaic systems of claim 1, wherein city class data and photovoltaic module class data in the base database are obtained from specifications and sample reports;

performing de-duplication and outlier preprocessing on the city class data and the photovoltaic module class data which are obtained from the basic database;

and converting the city data and the photovoltaic module data in the preprocessed basic database into a data table form of SQLlite for storage.

4. The rapid placement method of CAD-based photovoltaic systems according to claim 3, further comprising performing query window construction, receiving query keywords or query conditions input by a user through the constructed query window, and retrieving city class data and photovoltaic module class data satisfying the query conditions using the established index keywords.

5. The rapid placement method of CAD-based photovoltaic systems according to claim 1, wherein the calculation formula for the placement distance D of the photovoltaic modules is:

D＝Lcosβ+Lsinβ(0.707tanφ+0.4338)/(0.707-0.4338tanφ)

wherein L is the inclined plane length of the photovoltaic module; beta is the installation inclination angle of the photovoltaic module, and phi is the local latitude.

6. The rapid placement method of CAD-based photovoltaic systems according to claim 1, wherein the calculation formula for the placement distance D of the photovoltaic modules is:

D≥Hcotαcosγ

wherein H is the vertical distance between the highest point of the obstacle or front row photovoltaic module and the lowest point of the light receiving surface of the photovoltaic module, and alpha is the solar altitude angle; and gamma is the installation azimuth angle of the photovoltaic module.

7. The rapid placement method of CAD-based photovoltaic systems according to claim 1, wherein during the segmentation of the irregular photovoltaic regions in which the photovoltaic modules are placed:

picking up polygonal closed contour lines of an irregular photovoltaic area, dividing by adopting an inscribed orthogonal rectangular algorithm, and generating a marking matrix of 0 and 1 by utilizing a point set matrix; judging the area of inscribing the orthogonal rectangles by the marking matrix, and inquiring the rectangle with the largest area as the largest photovoltaic module arranging area;

the areas which do not meet the area and shape requirements are discarded through the area and shape screening of the segmented areas, and a final arrangement area for arranging the photovoltaic modules is obtained; and calculating the number of rows and columns of the photovoltaic modules with specified sizes and the specified spacing requirements by using the final arrangement areas obtained by screening.

8. The rapid placement method of CAD-based photovoltaic systems according to claim 7, wherein the tiles of the photovoltaic module are uniformly placed in groups of rows and columns in CAD drawing spaces of the final placement area that is selected after segmentation.

9. The CAD-based rapid placement method of photovoltaic systems of claim 1, wherein the formula for calculating annual average power production of photovoltaic modules is:

W＝P×S×K1×K2

wherein P is annual average power generation of the city where the photovoltaic is located; s is the total capacity of the photovoltaic installation; k1 is the installation inclination correction coefficient of the photovoltaic; k2 is a photovoltaic type correction factor.

10. A CAD-based photovoltaic system rapid placement apparatus employing the CAD-based photovoltaic system rapid placement method according to any one of claims 1 to 9, characterized by comprising:

the system comprises a database construction module, a database management module and a database management module, wherein the database construction module is used for constructing a basic database, the basic database comprises city class data and photovoltaic module class data, the city class data comprises city names and city preset parameter data, and the photovoltaic module class data comprises photovoltaic module names and photovoltaic module preset parameter data;

the parameter calling module is used for calling corresponding city preset parameter data according to the city name input by the user and calling corresponding photovoltaic module preset parameter data according to the photovoltaic module name input by the user;

the arrangement interval analysis module is used for calculating the arrangement interval of the photovoltaic modules according to a specified specification or a calculation method of an atlas by utilizing the acquired city preset parameter data and the photovoltaic module preset parameter data;

the distribution area processing module is used for dividing an irregular photovoltaic area in which the photovoltaic modules are arranged and screening out a final arrangement area in which the photovoltaic modules are arranged from the divided irregular photovoltaic area;

the photovoltaic module arrangement module is used for combining the calculated photovoltaic module arrangement distance and the screened photovoltaic module final arrangement area, and arranging the photovoltaic module in the CAD drawing space of the final arrangement area;

and the generating capacity analysis module is used for calling city preset parameter data and photovoltaic module preset parameter data according to the arrangement condition of the photovoltaic modules in the CAD drawing space, and calculating annual average generating capacity of the photovoltaic modules.