CN111555338B

CN111555338B - Electrical equipment configuration method, device, equipment and storage medium

Info

Publication number: CN111555338B
Application number: CN201911409027.5A
Authority: CN
Inventors: 徐宁; 胡燚杰; 张磊; 李舟生; 黄国昆; 孙捷
Original assignee: Shanghai Envision Innovation Intelligent Technology Co Ltd; Envision Digital International Pte Ltd
Current assignee: Shanghai Envision Innovation Intelligent Technology Co Ltd; Envision Digital International Pte Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2023-05-12
Anticipated expiration: 2039-12-31
Also published as: CN111555338A

Abstract

The application discloses a configuration method, a device, equipment and a storage medium of electrical equipment, which belong to the technical field of photovoltaic power generation, and the method comprises the following steps: acquiring project capacity and grid-connected grade of a target area; according to the project capacity and the grid-connected level, calculating the quantity of the grid-connected points in the target area and the capacity of each grid-connected point; according to the capacity of each grid-connected point, determining the configuration scheme of an inverter and a box transformer under each grid-connected point; and determining the configuration scheme of the combiner box under each grid-connected point according to the grid-connected grade. The technical scheme provided by the embodiment of the application realizes a method for automatically configuring the electrical equipment in the target area. In addition, in the embodiment of the application, the configuration method of the electrical equipment is applied to the computer equipment, and after the computer equipment obtains the project capacity and the grid-connected grade of the target area, the configuration scheme of the electrical equipment can be automatically determined, so that the configuration efficiency of the electrical equipment is improved.

Description

Electrical equipment configuration method, device, equipment and storage medium

Technical Field

The embodiment of the application relates to the technical field of photovoltaic power generation, in particular to a configuration method, a device, equipment and a storage medium of electrical equipment.

Background

In the design of photovoltaic power stations, according to the difference of design professions, the design can be divided into a system design, an electrical design and a structural design.

At present, on the basis of the system design of a photovoltaic power station, some devices related to the photovoltaic power station need to be selected and configured, and the process of selecting and configuring the devices is called electrical design. In general, electrical design involves the selection of various electrical devices (such as inverters, combiner boxes and box transformers) and cables, mainly including the selection of combiner boxes and box transformers and cable calculation, and are mutually related.

However, the related art often adopts a manual configuration method for the configuration of the electrical equipment, which is inefficient.

Disclosure of Invention

The embodiment of the application provides a configuration method, a device, equipment and a storage medium of electrical equipment, which can be used for solving the technical problem that the configuration of the electrical equipment in the related technology is mostly carried out by adopting a manual configuration method and has low efficiency. The technical scheme is as follows:

in one aspect, an embodiment of the present application provides a method for configuring an electrical device, which is applied to a computer device, where the method includes:

acquiring project capacity and grid-connected grade of a target area, wherein the project capacity refers to total capacity of photovoltaic modules contained in the target area, and the grid-connected grade refers to voltage grade of an access power grid in the target area;

Calculating the number of the grid-connected points in the target area and the capacity of each grid-connected point according to the project capacity and the grid-connected level, wherein the capacity of the grid-connected point refers to the total capacity of each photovoltaic module under the grid-connected point;

determining a configuration scheme of an inverter and a box transformer under each grid-connected point according to the capacity of each grid-connected point;

and determining the configuration scheme of the combiner boxes under each grid-connected point according to the grid-connected grade.

In another aspect, an embodiment of the present application provides a configuration apparatus for an electrical device, where the apparatus includes:

the system comprises a data acquisition module, a data storage module and a data storage module, wherein the data acquisition module is used for acquiring project capacity and grid-connected grade of a target area, the project capacity refers to total capacity of photovoltaic modules contained in the target area, and the grid-connected grade refers to voltage grade of an access power grid in the target area;

the grid-connected point calculation module is used for calculating the number of the grid-connected points in the target area and the capacity of each grid-connected point according to the project capacity and the grid-connected level, wherein the capacity of the grid-connected point refers to the total capacity of each photovoltaic module included by the grid-connected point;

the inverter and box transformer configuration module is used for determining the configuration scheme of the inverter and box transformer under each grid-connected point according to the capacity of each grid-connected point;

And the combiner box configuration module is used for determining the configuration scheme of the combiner box under each grid-connected point according to the grid-connected grade.

In yet another aspect, embodiments of the present application provide a computer device including a processor and a memory, where the memory stores a computer program that is loaded and executed by the processor to implement the method for configuring an electrical device described above.

In yet another aspect, embodiments of the present application provide a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the method of configuring an electrical device described above.

In yet another aspect, embodiments of the present application provide a computer program product for implementing the above-described method of configuring an electrical device when executed by a processor.

According to the technical scheme provided by the embodiment of the application, the quantity of the grid-connected points in the target area and the capacity of each grid-connected point are calculated according to the project capacity and the grid-connected level of the target area, then for each grid-connected point, the configuration scheme of the inverter and the box transformer is determined according to the capacity of the grid-connected point, and then the configuration scheme of the combiner box is determined according to the grid-connected level, so that the method for automatically configuring the electrical equipment in the target area is realized. In addition, in the embodiment of the application, the configuration method of the electrical equipment is applied to the computer equipment, and after the computer equipment obtains the project capacity and the grid-connected grade of the target area, the configuration scheme of the electrical equipment can be automatically determined, so that the configuration efficiency of the electrical equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a photovoltaic system provided in one embodiment of the present application;

FIG. 2 is a flow chart of a method of configuring an electrical device provided in one embodiment of the present application;

FIG. 3 is a schematic diagram of a configuration interface of an electrical device provided in one embodiment of the present application;

FIG. 4 is a block diagram of a configuration apparatus of an electrical device provided in one embodiment of the present application;

fig. 5 is a block diagram of a configuration apparatus of an electrical device provided in another embodiment of the present application;

fig. 6 is a block diagram of a computer device according to one embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, a block diagram of a photovoltaic system according to an embodiment of the present application is shown. The photovoltaic system may include: photovoltaic modules (Solar Panel) 10, inverters (Inverter) 20, combiner boxes (combiners) 30, box transformers (transformers) 40 and switching Gear (Switch Gear) 50.

The photovoltaic module 10, also called a solar panel, can convert solar energy into electric energy, and is a core part in a solar power generation system. In embodiments of the present application, the photovoltaic module 10 may be disposed on a roof to receive solar radiation and collect solar energy. Alternatively, the photovoltaic module 10 may be plural to achieve sufficient solar radiation reception and more solar energy collection.

The inverter 20 is used for converting direct current into alternating current, and the inverter 20 is essentially a direct current-to-direct current transformer. The solar energy can be converted into direct current through the photovoltaic module 10, and the inverter 20 converts the direct current output by the photovoltaic module 10 into alternating current for output.

And a combiner box 30 for combining the outputs of the inverters to reduce the wiring between the inverter 20 and the box transformer 40, and reduce the length of the cable used, thereby reducing the cost of the electrical equipment configuration. The model number of the junction box 30 is tsin 1, T being used to represent the number of inverters to which the single junction box is connected, 1 being used to represent the number of box transformers to which the single junction box is connected, and T being a positive integer. In the embodiment of the present application, the larger T represents the larger the confluence capability of the confluence box 30.

The box transformer 40, also known as a box transformer, a preassembled substation. In this embodiment, the box transformer 40 may combine a plurality of junction boxes 30 together according to a certain wiring scheme, that is, an input end of the box transformer 40 is connected to the plurality of junction boxes 30, and an output end of the box transformer 40 is connected to the switching device 50.

The switching device 50 is used for determining the working state of the photovoltaic system, when the switching device 50 is in an on state, the photovoltaic system is in the working state, and all components in the system work normally; when the switching device 50 is in the off state, the photovoltaic system is in a stopped state, and the components in the system are stopped. By arranging the switching device 50 in the photovoltaic system, the working state of the photovoltaic system can be flexibly controlled, and the photovoltaic system can be timely closed when the photovoltaic system is not needed, so that the power consumption of the photovoltaic system is reduced.

According to the technical scheme provided by the embodiment of the application, the execution main body of each step can be computer equipment, such as a server with calculation and storage capabilities, or a terminal such as a mobile phone, a tablet personal computer, a multimedia playing device, a wearable device and the like, and can also be other computer equipment. Alternatively, when the computer device is a server, the computer device may be a server, a server cluster formed by a plurality of servers, or a cloud computing service center.

Referring to fig. 2, a flowchart of a method for configuring an electrical device according to an embodiment of the present application is shown, where the method may be applied to a computer device. The method may include the following steps (210-240):

Step 210, obtaining project capacity and grid-connected level of the target area.

The target area is a predetermined area in which electrical equipment configuration is required, and comprises a plurality of photovoltaic modules. For description of the photovoltaic module, please refer to the above embodiment of the implementation environment, and the description is omitted here.

The project capacity, also referred to as the installed capacity or DC (Direct Current) capacity, refers to the total capacity of the photovoltaic modules contained in the target area, alternatively, for convenience in expressing the project capacity, the project capacity and the capacity of the photovoltaic modules may be expressed in the form of power, that is, the project capacity and the capacity of the photovoltaic modules are expressed in units of W (watts), such as MW (Megawatt), kW (Kilowatt, kW). For example, the target area contains 4 photovoltaic modules, and the capacity of each photovoltaic module is 2MW, so that the project capacity of the target area is 8MW.

The grid-connected grade refers to the voltage grade of the access power grid in the target area. Voltage Class (Voltage Class) refers to the rated Voltage level of electrical systems and electrical equipment, in V (Volt), and includes 220V, 380V, 6.3KV, 10KV, 35KV, 110KV, 220KV, 330KV, 500KV, 1000KV, etc. Optionally, in order to facilitate description of a configuration method of an electrical device, embodiments of the present application are described by taking a grid-connected level including two voltage levels of low voltage (380V) and medium voltage (10 KV) as an example.

Step 220, calculating the number of the grid-connected points in the target area and the capacity of each grid-connected point according to the project capacity and the grid-connected level.

The capacity of the grid-connected point refers to the total capacity of each photovoltaic module under the grid-connected point. The computer device can calculate the number of the grid-connected points in the target area and the capacity of each grid-connected point according to the project capacity and the grid-connected level. In one example, the step 302 includes: calculating the number of the grid-connected points according to the project capacity and the grid-connected level; and determining the capacity of each grid-connected point according to the number of the grid-connected points.

In the embodiment of the present application, in order to obtain an accurate calculation result, the number of the mesh points can meet the requirement of the project, where the number of the mesh points is calculated by using a round function, and the round function is a round function, for example, the result of the round function (0.2) is 1. Optionally, to accommodate different grid-tie levels, the number of grid-tie points is calculated differently for different grid-tie levels. For example, when the grid-connected level is medium voltage, the number of grid-connected points is calculated by: number of grid-connected points = round dup (project capacity/6 MW). For example, when the grid-connected level is low voltage, the number of grid-connected points is calculated by: number of grid-connected points = round dup (project capacity/0.4 MW).

After the computer equipment calculates the number of the grid-connected points, the capacity can be allocated to each grid-connected point according to the number of the grid-connected points, namely the capacity of each grid-connected point is determined.

For example, when the grid-connected level is medium voltage, if the project capacity is an integer multiple of 6MW, the capacity allocated by the computer device to each grid-connected point is 6MW respectively; if the project capacity is not an integer multiple of 6MW, the capacity allocated by the computer device to each grid-connected point is 6MW, 6MW and 6MW … … remainder respectively, wherein the remainder is the remainder of dividing the project capacity by 6MW, namely the capacity allocated by the computer device to each grid-connected point in turn is 6MW, when the project capacity is allocated to the last grid-connected point, the total capacity of each allocated grid-connected point is subtracted by the project capacity, and when the total capacity of each allocated grid-connected point is less than 6MW, the difference is directly used as the capacity of the last grid-connected point. Alternatively, when the capacity of the point of attachment is in MW, the remainder remains three bits after the point of decimal, i.e., the verification error is 0.001MW. For example, the project capacity is 26.5MW, then the computer device calculates the number of grid-tie points as 5 according to the round-dup function, and the capacity allocated to each grid-tie point is 6.000MW, and 2.500MW, respectively.

Illustratively, when the grid-connected level is low voltage, if the project capacity is an integer multiple of 400kW, the capacity allocated by the computer device to each grid-connected point is 400kW respectively; if the project capacity is not an integer multiple of 400kW, the capacity allocated by the computer equipment to each grid-connected point is 400kW, 400kW and 400kW … … remainder respectively, wherein the remainder is the remainder of dividing the project capacity by 400kW, namely the capacity allocated by the computer equipment to each grid-connected point in turn is 400kW, when the project capacity is allocated to the last grid-connected point, subtracting the total capacity of each allocated grid-connected point from the project capacity is less than 400kW, and taking the difference as the capacity of the last grid-connected point directly. Alternatively, when the capacity of the point of attachment is in kW, the remainder remains the decimal point one after the decimal point, i.e., the verification error is 0.1kW. For example, the project capacity is 2.7MW, then the computer device calculates the number of grid-tie points as 7 according to the round-dup function, and the capacity allocated to each grid-tie point is 400.0kW, and 300.0kW, respectively.

And 230, determining the configuration scheme of the inverter and the box transformer under each grid-connected point according to the capacity of each grid-connected point.

After the number of the grid-connected points and the capacity of each grid-connected point are determined, the computer equipment performs configuration of the electrical equipment for the grid-connected points. For each grid-connected point, the computer equipment can determine the number of inverters under each grid-connected point according to the capacity of the grid-connected point, and then determine the number and the position of the box transformer according to the number of the inverters and the positions of the inverters, so that the configuration scheme of the inverters and the box transformer under the grid-connected point is completed. For a detailed description of the configuration of the inverter and the tank transformer at each grid-tie point, please refer to the following alternative embodiments.

Step 240, determining the configuration scheme of the combiner box under each grid-connected point according to the grid-connected level.

Because the access points of the output ends of the combiner boxes are different under the grid-connected points of different grid-connected grades, the configuration scheme of the combiner boxes under each grid-connected point is required to be determined respectively according to the different grid-connected grades. In the embodiment of the application, the computer equipment can automatically calculate the number, the model, the position and the like of the converging boxes under each grid-connected point according to the position of the grid-connected point and the configuration scheme of the inverter and the box transformer. For a detailed description of the configuration of the combiner boxes at each grid-tie point, please refer to the following alternative embodiments.

In summary, according to the technical scheme provided by the embodiment of the application, the number of the grid-connected points and the capacity of each grid-connected point in the target area are calculated according to the project capacity and the grid-connected level of the target area, then for each grid-connected point, the configuration scheme of the inverter and the box transformer is determined according to the capacity of the grid-connected point, and then the configuration scheme of the combiner box is determined according to the grid-connected level, so that the method for automatically configuring the electrical equipment in the target area is realized. In addition, in the embodiment of the application, the configuration method of the electrical equipment is applied to the computer equipment, and after the computer equipment obtains the project capacity and the grid-connected grade of the target area, the configuration scheme of the electrical equipment can be automatically determined, so that the configuration efficiency of the electrical equipment is improved.

In addition, in the embodiment of the application, the number of the grid-connected points is calculated according to the project capacity and the grid-connected level by the computer equipment, and then the capacity of each grid-connected point is determined according to the number of the grid-connected points, so that a specific mode for determining the number of the grid-connected points and the capacity of each grid-connected point is provided.

In a possible implementation manner, after the step 220, the following steps are further included:

step 222, n roofs included in the target area are acquired, as well as a roof area and a roof shape of each roof.

The target area is a predetermined area needing to be configured with electrical equipment, the target area comprises n roofs on which photovoltaic modules can be placed, and n is a positive integer greater than or equal to 1. Optionally, the computer device may obtain n roofs included in the target area through image processing or video processing, which is not limited in this embodiment, for example, a plurality of cameras are disposed in the target area, and the plurality of cameras may collect images or videos corresponding to the target area, and send the collected images or videos to the computer device, where the computer device processes the images or videos to obtain n roofs included in the target area. In this embodiment of the present application, when the computer device acquires n roofs, the roof area and the roof shape corresponding to each roof may also be acquired, and optionally, the roof area and the roof shape corresponding to each roof may also be acquired by the computer device through image processing or video processing.

Step 224, determining grid-connected points corresponding to the n roofs according to the roof areas of the roofs, and numbering the n grid-connected points according to the numbers of the n roofs;

in this embodiment of the present application, the roof and the grid-connected point may be in a one-to-one correspondence, that is, one roof corresponds to one grid-connected point. Optionally, after obtaining n roofs and the roof area corresponding to each roof, the computer device may rank the n roofs in order from large to small or from small to large according to the roof area of each roof, and then determine the corresponding grid-connected point of each roof according to the ranking result. Alternatively, the computer device may determine the corresponding point of presence for each roof based on the results of the ranking, and the capacity of each point of presence.

For example, assuming that the target area has 4 roofs, each having a corresponding area of 5 ten thousand square meters, 4.5 ten thousand square meters, 7 ten thousand square meters, and 6.8 ten thousand square meters, the 4 roofs are ranked in order from large to small, resulting in a ranking of 7 ten thousand square meters, 6.8 ten thousand square meters, 5 ten thousand square meters, and 4.5 ten thousand square meters, respectively, the computer device may number the 4 roofs according to the ranking, i.e., 7 ten thousand square meters as roof 1, 6.8 ten thousand square meters as roof 2, 5 ten thousand square meters as roof 3, and 4.5 ten thousand square meters as roof 4. Assuming that the computer equipment previously calculates 4 grid-connected points in the target area, and the capacity of each grid-connected point is 6.000MW, 6.000MW and 2.500MW respectively, the computer equipment determines the grid-connected point with the corresponding capacity of 6.000MW on the roof 1, the grid-connected point with the corresponding capacity of 6.000MW on the roof 2, the grid-connected point with the corresponding capacity of 6.000MW on the roof 3 and the grid-connected point with the corresponding capacity of 2.500MW on the roof 4 according to the roof sequencing result and the capacity of each grid-connected point. After determining the grid-connected point corresponding to each roof, the computer device may further number the n grid-connected points according to the numbers corresponding to the n roofs, that is, the grid-connected point corresponding to the roof 1 is the grid-connected point 1, the grid-connected point corresponding to the roof 2 is the grid-connected point 2, the grid-connected point corresponding to the roof 3 is the grid-connected point 3, and the grid-connected point corresponding to the roof 4 is the grid-connected point 4.

In one example, if the number y of the roofs is greater than the number x of the grid-connected points, sorting all the roofs from large to small according to the roof area of each roof, then sequentially determining the grid-connected points corresponding to the x roofs according to the sorting result, and not distributing the grid-connected points to the rest y-x roofs; in another example, if the number of roofs y is less than the number of grid-connected points x, the user is supported to manually modify the number of grid-connected points and the capacity of each grid-connected point until the number of grid-connected points x is less than or equal to the number of roofs y, so as to perform the subsequent step of determining the corresponding grid-connected point of each roof. Wherein x and y are both positive integers.

And 226, determining the setting positions of the n grid-connected points according to the roof shape.

After the computer device determines the grid-connected points corresponding to the roofs according to the roof areas of the roofs, the computer device can determine the setting positions of the grid-connected points corresponding to the roofs according to the roof shapes of the roofs. In the embodiment of the application, as the photovoltaic modules are arranged on the roofs, the grid-connected points can be arranged in the area outside the roofs, so that the normal operation of the grid-connected points and the photovoltaic modules can be ensured.

In one example, the above step 226 includes the following sub-steps:

(1) For an mth roof of the n roofs, a centroid of the mth roof, and an azimuth of the mth roof are obtained.

For any one of n roofs with determined grid-connected points, the setting position of the grid-connected point corresponding to the roof needs to be accurately determined according to the roof shape of the roof. For the mth roof, the computer device, after acquiring the mth roof, may determine the centroid and azimuth of the roof. Alternatively, since the roof shape of each roof is polygonal, the centroid of the mth roof may be the center point of the polygon corresponding to the roof shape of the mth roof; because each side of the polygon corresponds to a normal line, in the embodiment of the present application, a direction corresponding to the southwest normal line in the polygon corresponding to the mth roof can be determined as the azimuth angle of the mth roof. It should be noted that, the centroid and the azimuth angle of the mth roof may be determined in other manners, for example, determining that the azimuth angle of the mth roof is the direction corresponding to the north-most normal line among the polygon normals, which are all within the protection scope of the present application.

For example, assuming that the mth roof is rectangular, the intersection point of the diagonal lines of the rectangle may be determined as the centroid of the mth roof, and assuming that the normal direction of each side of the rectangle is respectively 20 degrees south-east, 70 degrees south-west, 20 degrees north-west and 70 degrees north-east, the direction of the most south-oriented normal, that is, 20 degrees south-east, is determined as the azimuth angle of the mth roof.

(2) A midpoint connection closest to the azimuth of the mth roof is determined.

In the embodiment of the application, the midpoint connecting line refers to a connecting line between the center of mass of the m-th roof and the center of each edge of the m-th roof. Optionally, when determining the midpoint connecting line closest to the azimuth angle of the mth roof, the computer device may connect the centroid with the center of each side to obtain the center connecting line corresponding to each side, and then determine the center connecting line closest to the azimuth angle in the center connecting lines; or determining the normal corresponding to the azimuth, then determining the edge corresponding to the normal, and then determining the midpoint connecting line corresponding to the edge, wherein the center connecting line is the midpoint connecting line closest to the azimuth of the mth roof, which is not limited in the embodiment of the present application.

(3) The wire is extended outwardly by k meters in the vector direction.

The vector direction refers to the direction that the centroid of the mth roof points to the midpoint of each side of the mth roof, and the vector direction of the midpoint connecting line closest to the azimuth angle of the mth roof is the direction that the centroid of the mth roof points to the midpoint of the side corresponding to the midpoint connecting line. After determining the midpoint connection closest to the azimuth of the mth roof, the computer device extends the midpoint connection outwardly by k meters along the vector direction of the midpoint connection, k being a positive integer.

(4) And determining the end point of the connecting line as the setting position of the parallel network point corresponding to the mth roof.

After the midpoint connecting line is extended outwards by k meters along the vector direction, the computer equipment determines the end point of the extended midpoint connecting line, namely the other end point except the centroid of the mth roof in the extended midpoint connecting line, as the setting position of the parallel network point corresponding to the mth roof. The specific value of k can be preset, for example, k is preset to be 5 meters; the k may also be determined according to an actual application scenario, for example, if in the actual application scenario, the midpoint connecting line is a river with a width of 4 meters along the vector direction, and k may be determined to be 8 meters, which is not limited in the embodiment of the present application.

In summary, according to the technical scheme provided by the embodiment of the application, the computer equipment determines the grid-connected points corresponding to each roof according to the roof area of each roof in the target area, and then determines the setting positions of the grid-connected points corresponding to each roof according to the roof shape of each roof, so that a mode for automatically determining the number of the grid-connected points and the capacity of each grid-connected point is provided. In addition, in the embodiment of the application, the setting position of the point of connection is determined according to the midpoint connecting line closest to the azimuth angle of the roof, so that the setting position of the point of connection is adapted to the roof where the point of connection is located.

In another possible implementation, the step 230 includes the following sub-steps:

step 232, for the s-th grid-connected point, determining the number of inverters under the s-th grid-connected point according to the position and the capacity of the s-th grid-connected point.

After the number of the grid-connected points and the capacity of each grid-connected point are determined, the computer equipment performs configuration of the electrical equipment for the grid-connected points. For the s-th grid-connected point in the grid-connected points, firstly determining the number of inverters under the grid-connected point, wherein s is a positive integer.

In the embodiment of the application, the target area corresponds to one inverter set, and the inverters in the inverter set are distributed in the target area in a scattered manner. When the computer equipment determines the number of the inverters under the s-th grid-connected point, the z inverters closest to the s-th grid-connected point can be determined according to the position of the s-th grid-connected point, wherein z is a positive integer, and meanwhile, according to the capacity of the s-th grid-connected point, the number z of the inverters determined by the computer equipment needs to satisfy: the product of z and the rated power of the inverter is less than or equal to the capacity of the s-th grid-connected point, and the product of z+1 and the rated power of the inverter is greater than the capacity of the s-th grid-connected point. After the computer equipment determines z inverters under the s-th grid-connected point through the steps, the z inverters can be deleted from the inverter set of the target area, so that the situation that the computer equipment repeatedly determines the inverter under the s-th grid-connected point as the inverter under other grid-connected points when determining the inverter under other grid-connected points is avoided, and the configuration accuracy of the electrical equipment is influenced.

Step 234, determining the maximum box variable at the s-th grid-connected point according to the number of inverters at the s-th grid-connected point.

After the number z of the inverters under the s-th grid-connected point is determined, the computer equipment can determine the maximum box variable under the s-th grid-connected point, namely the maximum number of the configurable box variables under the s-th grid-connected point according to the number z. Alternatively, the maximum bin variable at the s-th grid-connected point may be calculated using a round dup function, and the calculation formula of the maximum bin variable is shown as follows: maximum bin number=round dup (z. Rated power of inverter/2500) +1. For description of the round dup function, please refer to the above-mentioned alternative embodiments, which are not repeated here.

And step 236, determining the number and the model of the box transformer substation at the s-th grid-connected point according to the maximum box variable and the box transformer substation model.

Case variant numbers are used to distinguish the capacities of the case changes, different case variant numbers correspond to different case change capacities, alternatively case change models may be expressed by case change capacities, for example, case change models may be 500kVA (kilovolt ampere), 630kVA, 1000kVA, 1250kVA, 1600kVA, 2000kVA, 2500kVA, etc.

In the configuration of the electrical equipment, the box transformer under each grid-connected point needs to meet two conditions: first, the sum of the capacities of the box-section is greater than or equal to the product of the number of inverters and the rated power of the inverters; second, the sum of the prices of the box-section is the lowest among all the combination schemes. After determining the maximum box variable under the s-th grid-connected point, the computer device may determine possible box transformer combinations under the s-th grid-connected point according to the maximum box variable, where each box transformer combination includes the number of box transformers and the model number of each box transformer, and the box transformer needs to meet the first condition. Since the prices of the box transformer substation of different models are different, in order to reduce the cost of the electrical equipment, the computer equipment needs to select the box transformer substation combination with the lowest total price from all the possible box transformer substation combinations, namely, determine the box transformer substation combination meeting the second condition.

Step 238, determining the position of the box transformer under the s-th grid-connected point according to the position of the inverter under the s-th grid-connected point.

The s-th grid-connected point is provided with a plurality of inverters and a plurality of box-type transformers, and the embodiment of the application needs to establish a corresponding relation between the plurality of inverters and the plurality of box-type transformers. For each box transformer under the s-th grid-connected point, determining a inverters from the s-th grid-connected point according to the model of the box transformer, namely the box transformer capacity, wherein the quantity a satisfies the following conditions: the product of a and the rated power of the inverter is smaller than or equal to the capacity of the box transformer b, and the product of a+1 and the rated power of the inverter is larger than the capacity of the box transformer b, wherein a and b are both positive integers. Optionally, when determining the a inverters corresponding to the box-section b, the computer device may determine the order from left to right and from top to bottom starting from the upper left corner of the range of the s-th grid-connected point, and after determining the a inverters corresponding to the box-section b, the computer device may delete the a inverters from the set of inverters under the s-th grid-connected point, so as to avoid the situation that the same inverter corresponds to different box-sections when determining the inverters corresponding to other box-sections.

In the embodiment of the application, the position of the box transformer is located between the setting position of the grid-connected point and the position of the connected inverter, and the closer the box transformer is to the inverter, the better the box transformer is, so that the length of a cable connected with electrical equipment is reduced.

In one example, the above-described step 238 includes the following sub-steps:

(1) And calculating the mass center of the inverter under the s-th grid-connected point according to the position of the inverter under the s-th grid-connected point.

The computer device can calculate the mass center of each inverter at the s-th grid-connected point according to the position of each inverter at the s-th grid-connected point. Optionally, the centroid of the inverter under the s-th grid-connected point may be a center point of the polygon connected with the inverter under the s-th grid-connected point, and in this embodiment of the present application, after determining the position of each inverter under the s-th grid-connected point, the computer device connects each inverter, so that a polygon may be formed, and the center point of the polygon may be determined as the centroid of the inverter under the s-th grid-connected point.

(2) Taking the mass center of the inverter under the s-th grid-connected point as a starting point, taking the position of the s-th grid-connected point as a ray, and determining the intersection point between the ray and the roof.

Since the centroid of the inverter is usually located inside the roof polygon and the setting position of the s-th grid-connected point is located outside the roof polygon, the computer device uses the centroid of the inverter under the s-th grid-connected point as a starting point and uses the setting position of the s-th grid-connected point as a ray, so that at least one intersection point between the ray and the roof can be determined.

(3) And determining the intersection point farthest from the s-th grid-connected point as a target intersection point in the intersection points between the rays and the roof.

The target intersection point is the intersection point closest to the inverter under the s-th grid-connected point, and the computer equipment can select the intersection point farthest from the setting position of the grid-connected point from at least one intersection point of the ray and the roof, and determine the intersection point as the target intersection point.

(4) And (3) extending the target intersection point outwards by p meters along the direction of the ray, and determining the extended target intersection point as the position of the box transformer substation under the s-th grid-connected point.

Because of the large volume and weight of the box transformer, which is typically placed on the ground, the computer equipment determines the location of the box transformer outside the roof. In the embodiment of the application, after determining the target intersection point, the computer equipment extends the target intersection point outwards by p meters along the ray direction, p is a positive integer, the extended target intersection point is located outside the roof, and the computer equipment determines the extended target intersection point as the position of the box transformer under the s-th grid-connected point. The specific value of p can be preset, for example, p is preset to be 5 meters; the determination may also be performed according to an actual application scene, a volume of the box transformer substation, and the like, for example, if in the actual application scene, the target intersection point is a road with a width of 5 meters along the direction of the ray, it may be determined that p is 10 meters, which is not limited in the embodiment of the present application.

In summary, according to the technical scheme provided by the embodiment of the application, the number of the inverters under the grid-connected point is determined by the computer equipment according to the position and the capacity of the grid-connected point, then the number of the box-type transformers and the model numbers of the grid-connected point are determined according to the number of the inverters and the box-type transformers, and then the position of the box-type transformers under the grid-connected point is determined according to the position of the inverters under the grid-connected point, so that a specific configuration scheme of the inverters and the box-type transformers is provided. In addition, in the embodiment of the application, the position of the box transformer is determined according to the position of each inverter under the grid-connected point and the position of the grid-connected point, so that the position of the box transformer is adapted to the grid-connected point.

In yet another possible embodiment, the step 240 includes the following sub-steps:

step 242, for the t-th grid-connected point of the grid-connected points, determining the output access point of the combiner box under the t-th grid-connected point according to the grid-connected level.

The output end access point of the combiner box refers to a low-voltage access point of the combiner box, for the combining points with different combining grades, the output end access points of the combiner box under the combining points are also different, and for the t-th combining point in the target area, the computer equipment can specifically determine the output end access point of the combiner box under the combining points according to the combining grade of the combining points, wherein t is a positive integer.

Optionally, step 242 includes: when the grid-connected level is medium voltage, determining that an output end access point of the combiner box at the t-th grid-connected point is the position of the box transformer substation at the t-th grid-connected point; when the grid-connected level is low-voltage, determining that the output end access point of the combiner box under the t-th grid-connected point is the t-th grid-connected point. In the embodiment of the application, two possibilities exist for the access point of the output end of the combiner box, namely, the position of the box transformer is the position of the grid-connected point, and when the grid-connected level is the medium voltage, the position of the access point of the output end of the combiner box is determined to be the position of the box transformer, namely, the low-voltage access point of the combiner box is determined to be the box transformer; and when the grid-connected level is low-voltage, determining the position of the access point of the output end of the combiner box as the grid-connected point, namely, directly accessing the low-voltage access point of the combiner box to the grid-connected point.

Step 244, calculating the distance L between each inverter and the access point of the output end of the combiner box according to the position of the inverter at the t-th grid-connected point _i 。

In this embodiment, the inverters are distributed under the t-th grid-connected point in a scattered manner, and after the computer equipment determines the output end access point of the combiner box according to the grid-connected level of the grid-connected point, the distance L between each inverter under the t-th grid-connected point and the output end access point of the combiner box can be calculated _i ，L _i Is a positive number, i is a positive integer. Optionally, the computer device calculates the distance L _i Then, the distance L can be adjusted _i And sorting from large to small or from small to large is performed so that the computer equipment can perform subsequent processing steps according to the sorting result.

And step 246, determining the model of the combiner box at the t grid-connected point according to the minimum value of the distance.

The model of collection flow box is used for instructing the function of converging that collection flow box can realize, for example, when the model of collection flow box is T advances 1, indicates that collection flow box can realize converging the output of T platform dc-to-ac converter, and T is positive integer, and wherein, the value of T is bigger, indicates the greater function of converging of collection flow box. Optionally, the types of the combiner boxes include 5 in 1, 4 in 1, 3 in 1, 2 in 1, and the like.

In the configuration of the electrical equipment, the junction box under each grid-connected point needs to satisfy three conditions: firstly, the outlet section and the pressure drop of the junction box need to meet preset conditions, wherein the preset conditions can be set when the junction box leaves a factory or can be specifically determined according to practical application projects, and the embodiment of the application is not limited to the conditions; secondly, the converging function of the converging box should be as large as possible on the premise of meeting the first condition; third, the convergence function of the convergence box from the output access point should be as large as possible. In this embodiment, according to the cable material and the cable pressure drop configured by default, the computer device may reversely calculate the longest outgoing distances of the bus boxes of different types according to the outgoing line sections of 3×185 square millimeters, and assume that the longest outgoing distances corresponding to the bus boxes of the 5 in 1, 4 in 1, 3 in 1, 2 in 1 types are L5, L4, L3, and L2, respectively, and L5< L4< L3< L2 exists.

The computer equipment determines the distance L _i After the minimum value of the (2) and the longest outgoing distance of the different types of junction boxes, determining the distance L _i The minimum value of the bus box is in the longest outgoing distance range, and the model of the bus box corresponding to the longest outgoing distance is determined as the model of the bus box at the t grid-connected point. For example, assume that in the t-th point of the union, the distance L _i The minimum value of (2) is 10 meters, the longest outgoing distances of the junction boxes with different types are L5=5 meters, L4=9 meters, L3=12 meters and L2=20 meters respectively, and the distance L is determined _i The minimum value of (2) falls into the range of the outlet longest distance L3, and the 3 in 1 combiner box corresponding to the outlet longest distance L3 is determined as the model of the combiner box at the t-th grid-connected point.

Step 248, determining whether the input access point of the combiner box at the t-th grid-connected point meets all access inverters.

Because there are at least two input access points of the collection flow box, after the model of the collection flow box is determined, the computer equipment also needs to determine whether the input access points of the collection flow box meet all access inverters, so that the condition that the input access points of the collection flow box are suspended and resources are wasted is avoided, and the accuracy of electrical configuration is ensured.

And 248B, if the input end access points of the combiner box under the t-th grid-connected point meet all the access inverters, determining the position of the combiner box under the t-th grid-connected point as the position of the inverter corresponding to the minimum value of the distance.

In this embodiment, the distance L is not the t-th grid-connected point _i If the distance outside the minimum value of the (2) is also within the range of the longest outgoing line distance of the determined combiner box, determining that the input access point of the combiner box at the t-th grid-connected point meets all the access inverters, and determining the distance L _i The position of the inverter corresponding to the minimum value of (c) is determined as the position of the combiner box at the t-th grid-connected point.

Step 248D, if the input access point of the combiner box under the t-th grid-connected point does not meet all the access inverters, changing the model of the combiner box under the t-th grid-connected point, and executing the steps again from the step of determining whether the input access point of the combiner box under the t-th grid-connected point meets all the access inverters.

In this embodiment, the distance L is not the t-th grid-connected point _i If there is a distance that does not fall within the maximum distance range of the outgoing line of the determined combiner box, determining that the input access point of the combiner box at the t-th grid-connected point does not satisfy all access to the inverter, at which time the computer device changes the model of the combiner box at the t-th grid-connected point, optionally the computer device changes the model of the combiner box to the model corresponding to the combiner box with a greater combiner function, for example, assuming that according to the distance L _i If the model of the combiner box determined by the minimum value of (1) is 4 in 1, determining that the model of the combiner box is 3 in 1 when the input access point of the combiner box at the t-th grid-connected point does not meet all the access inverters. After changing the model of the combiner box, the computer equipment starts to execute the steps from determining whether the input end access point of the combiner box under the t-th grid-connected point meets all the access inverters again until the input end access point of the combiner box under the t-th grid-connected point meets all the access inverters. Optionally, if the distance L under the t-th grid connection point _i If a certain distance exceeds the longest outgoing line distance L2, determining that the inverter corresponding to the certain distance is abandoned to be connected into the junction box, and directly connecting into an output end access point of the junction box.

In summary, according to the technical scheme provided by the embodiment of the application, the output end access point of the combiner box under the grid-connected point is determined according to the grid-connected level of the grid-connected point, then the model of the combiner box under the grid-connected point is determined according to the distance between the inverter and the output end access point under the grid-connected point, and then the position of the combiner box is determined by determining whether the input end access point of the combiner box meets the condition, so that a specific configuration mode of the combiner box is provided. In addition, in the embodiment of the application, for different grid-connected grades, different junction box output end access points are provided, so that the junction box output end access points are adapted to the grid-connected grades.

In yet another possible embodiment, the number of points and the capacity of each point support modification, i.e. the user can modify the number of points and the capacity of each point according to the personalization requirements. In this embodiment of the present invention, a setting interface of electrical configuration is correspondingly provided in a computer device, after the number of grid-connected points and the capacity of each grid-connected point are calculated, the computer device may display the number of grid-connected points and the capacity of each grid-connected point to a user in the setting interface of electrical configuration, if the user wants to modify the number of grid-connected points or the capacity of a certain grid-connected point, the user may input the required number of grid-connected points or the capacity of the grid-connected point in the setting interface, and then update the electrical configuration, thereby completing modification of the number of grid-connected points and/or the capacity of each grid-connected point. For example, as shown in fig. 3, an electrically configured setting interface 310 is displayed in the computer device, where the setting interface 310 displays an inputtable button 320 and an inputtable button 330, the user clicks the button 320 to modify the number of points to be connected, clicks the button 330 to modify the capacity of each point to be connected, and an update button 340 is also displayed in the setting interface 310, and the user clicks the update button 340 to update the number of points to be connected and the capacity of each point to be connected in the computer device, so as to complete the modification.

Optionally, the capacity of each grid-connected point can be automatically modified along with the modification of the number of the grid-connected points, namely, the user only needs to modify the number of the grid-connected points into the number of grid-connected points needed by the user, and the computer equipment can automatically modify the capacity of each grid-connected point according to the number of the grid-connected points modified by the user. Optionally, the number of the grid-connected points calculated by the computer device at the beginning is the minimum value of the number of the grid-connected points calculated according to the project capacity, if the user needs to modify the number of the grid-connected points, the number of the grid-connected points can only be increased, in this way, a reference can be provided for the user to modify the number of the grid-connected points, the user is prevented from modifying at will, and the efficiency of electrical configuration is further improved. Optionally, the computer device defaults to zero for the newly added grid-tie point, and the user can further modify the capacity of each grid-tie point, in this way, more autonomously selected space can be provided for the user. Optionally, in the second and subsequent modification of the user, the number of the grid-connected points may be reduced, at this time, the computer device may delete the target number of grid-connected points from the existing grid-connected points according to a certain order, such as the number of the grid-connected points, and default that the capacity of other grid-connected points is unchanged, and the user may further modify the capacity of each grid-connected point, where the target number is the difference between the number of grid-connected points before modification and the number of grid-connected points after modification by the user.

Optionally, when updating the electrical configuration according to the modification of the user, the computer device may check whether the number of the grid-connected points and the capacity of each grid-connected point meet the requirements, that is, whether the sum of the capacities of all the grid-connected points is equal to the project capacity, and if the verification is passed, that is, the sum of the capacities of all the grid-connected points is equal to the project capacity, display first prompt information on a setting interface of the electrical configuration, where the first prompt information is used for prompting the user to verify the pass; if the verification is failed, that is, the sum of the capacities of all the point-to-point is smaller than or greater than the project capacity, displaying second prompt information on a setting interface of the electrical configuration, wherein the second prompt information is used for prompting a user that the verification is failed, the first prompt information and the second prompt information are different in color except for the content, if the first prompt information adopts a green font, and the second prompt information adopts a red font, so that the user is reminded of the verification result more remarkably, and the embodiment of the application does not limit the verification. Optionally, if the verification is passed, the first prompt information may not be displayed, so as to reduce processing overhead of the computer device.

In another possible embodiment, the model of the box transformer also supports modification, i.e. the user can adjust the model of the box transformer according to the personalized needs. In the embodiment of the application, an electrical configuration setting interface is correspondingly arranged in the computer equipment, a box change type button is correspondingly arranged in the setting interface, a user can check the current box change number by clicking the button, and the current box change number can be modified. For example, as shown in fig. 3, an electrically configured setting interface 310 is displayed in the computer device, the setting interface 310 displays a box transformer type selection button 350, and the user can pop out a box transformer type selection dialog box 360 by clicking the box transformer type selection button 350, and in the box transformer type selection dialog box 360, the user can view the number of box transformers under each grid point and the model number of each box transformer. A pull-down button 370 is also provided in the box transformer type dialog box 360, and a user can select and modify the model of the box transformer by clicking the pull-down button 370. A submit button 380 is also provided in the box transformer type dialog box 360, and after the user finishes the modification, the user can finish the modification of the box transformer type by clicking the submit button 380.

Optionally, when updating the box transformer model according to the modification of the user, the computer device may check whether the box transformer model number selected by the user meets the requirement, and the specific box transformer model selection requirement is referred to the above optional embodiment, which is not described herein. If the box-type selection meets the requirement, a third prompt message is displayed in the box-type selection dialog box, where the third prompt message is used to prompt the user that the box-type selection meets the requirement, for example, as shown in fig. 3, a third prompt message 390 is displayed in the box-type selection dialog box 360, and the third prompt message 390 is used to prompt the user that the modified box-type selection meets the requirement; if the box-type selection is not in accordance with the requirements, fourth prompt information is displayed in the box-type selection dialog box, and the fourth prompt information is used for prompting the user that the box-type selection is not in accordance with the requirements and needs to be modified again, wherein the third prompt information and the fourth prompt information are different in color except for different contents, if the third prompt information adopts a green font, and the fourth prompt information adopts a red font, so that the user is reminded more remarkably of the verification result of the box-type selection. Optionally, if the verification is passed, the first prompt information may not be displayed, so as to reduce processing overhead of the computer device.

In summary, the technical scheme provided by the embodiment of the application meets the requirement that the user autonomously sets the number of the grid-connected points, the capacity of each grid-connected point and the box transformer type according to the personalized requirements by supporting the manual modification of the user on the number of the grid-connected points, the capacity of each grid-connected point and the box transformer type. In addition, in the embodiment of the application, the computer device can check the modification of the user and display the prompt information after the check is finished, wherein the prompt information is used for prompting the user whether the modification meets the requirement of the project configuration or not so as to ensure that the user can make a timely treatment when the modification does not meet the requirement of the project configuration.

The following are device embodiments of the present application, which may be used to perform method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Referring to fig. 4, a block diagram of a configuration apparatus of an electrical device according to an embodiment of the present application is shown. The apparatus 400 has functions for implementing the above-described method embodiments, where the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The apparatus 400 may be a computer device as described above. The apparatus 400 may include: the system comprises a data acquisition module 410, a grid-tie point calculation module 420, an inverter and box transformer configuration module 430 and a combiner box configuration module 440.

The data acquisition module 410 is configured to acquire a project capacity of a target area and a grid-connected level, where the project capacity refers to a total capacity of a photovoltaic module included in the target area, and the grid-connected level refers to a voltage level of an access grid in the target area.

And the grid-connected point calculating module 420 is configured to calculate, according to the project capacity and the grid-connected level, the number of grid-connected points in the target area and the capacity of each grid-connected point, where the capacity of the grid-connected point refers to the total capacity of each photovoltaic module included in the grid-connected point.

And the inverter and box transformer configuration module 430 is configured to determine a configuration scheme of the inverter and box transformer under each grid-connected point according to the capacity of each grid-connected point.

And the combiner box configuration module 440 is configured to determine a configuration scheme of the combiner box under each grid-connected point according to the grid-connected level.

Optionally, the grid-connected point calculating module 420 is configured to: calculating the number of the grid-connected points according to the project capacity and the grid-connected level; and determining the capacity of each grid-connected point according to the number of the grid-connected points.

Optionally, as shown in fig. 5, the apparatus 400 further includes: a roof acquisition module 450 for acquiring n roofs included in the target area, and a roof area and a roof shape of each of the roofs, the n being a positive integer greater than or equal to 1; the relationship determining module 460 is configured to determine grid-connected points corresponding to the n roofs according to the roof areas of the respective roofs, and number the n grid-connected points according to the numbers of the n roofs; and the setting position determining module 470 is configured to determine the setting positions of the n grid-connected points according to the roof shape.

Optionally, as shown in fig. 5, the setting position determining module 470 is configured to: for an mth roof of the n roofs, acquiring a centroid of the mth roof and an azimuth angle of the mth roof, wherein m is a positive integer; determining a midpoint connection closest to an azimuth of the mth roof, the midpoint connection being a connection between a centroid of the mth roof and a center of each edge of the mth roof; extending the connecting line outwards by k meters along a vector direction, wherein the vector direction refers to the direction that the centroid of the m-th roof points to the middle point of each side of the m-th roof, and k is a positive integer; and determining the end point of the connecting line as the setting position of the point of connection corresponding to the m-th roof.

Optionally, as shown in fig. 5, the inverter and box-section configuration module 430 includes: an inverter determining submodule 432, configured to determine, for an s-th grid-connected point of the grid-connected points, the number of inverters under the s-th grid-connected point according to the position and the capacity of the s-th grid-connected point, where s is a positive integer; a maximum bin variable determination submodule 434, configured to determine a maximum bin variable at the s-th grid-connected point according to the number of inverters at the s-th grid-connected point; a box number determining submodule 436, configured to determine the number of box transformers and the model thereof at the s-th grid-connected point according to the maximum box number and the box transformer model; the box position determining sub-module 438 is configured to determine a position of the box transformer substation at the s-th grid-connected point according to the position of the inverter at the s-th grid-connected point.

Alternatively, as shown in FIG. 5, the bin position determination module 438 is configured to: calculating the mass center of the inverter under the s-th grid-connected point according to the position of the inverter under the s-th grid-connected point; taking the mass center of the inverter under the s-th grid-connected point as a starting point, taking the position of the s-th grid-connected point as a ray, and determining an intersection point between the ray and a roof; determining the intersection point farthest from the s-th grid-connected point as a target intersection point in the intersection points between the rays and the roof; and extending the target intersection point outwards by p meters along the direction of the ray, and determining the extended target intersection point as the position of the box transformer under the s-th grid-connected point, wherein p is a positive integer.

Optionally, as shown in fig. 5, the combiner box configuration module 440 includes: an access point determining submodule 442, configured to determine, for a t-th grid-connected point of the grid-connected points, an output end access point of the combiner box under the t-th grid-connected point according to the grid-connected level, where t is a positive integer; a distance calculating sub-module 444 for calculating the distance L between each inverter and the output access point of the combiner box according to the position of the inverter at the t-th grid-connected point _i The L is _i The i is a positive number, and the i is a positive integer; a model determining submodule 446, configured to determine a model of the combiner box at the t-th grid-connected point according to the minimum value of the distance; a condition determining submodule 448 configured to determine whether the input access points of the combiner box at the nth grid-connected point satisfy all the access inverters; the condition determining sub-module 448 is further configured to, when the input access point of the combiner box at the nth grid-connected point satisfies the following conditionWhen all the inverters are connected, determining the position of the combiner box at the t-th grid-connected point as the position of the inverter corresponding to the minimum value of the distance; the condition determining submodule 448 is further configured to change a model of the combiner box under the t-th grid-connected point when the input access point of the combiner box under the t-th grid-connected point does not satisfy all the access inverters, and execute the step from determining whether the input access point of the combiner box under the t-th grid-connected point satisfies all the access inverters again.

Optionally, as shown in fig. 5, the access point determining submodule 442 is configured to: when the grid-connected level is medium voltage, determining that an output end access point of the combiner box at the t-th grid-connected point is the position of the box transformer at the t-th grid-connected point; and when the grid-connected level is low-voltage, determining that the access point of the output end of the combiner box under the t-th grid-connected point is the position of the t-th grid-connected point.

It should be noted that, in the device provided in the embodiment of the present application, when the functions of the device are implemented, only the division of the above functional modules is used for illustration, in practical application, the above functional allocation may be implemented by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to implement all or part of the functions described above. In addition, the apparatus and the method embodiments provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the apparatus and the method embodiments are detailed in the method embodiments and are not repeated herein.

Referring to fig. 6, a block diagram of a computer device according to an embodiment of the present application is shown. The computer device may be used to implement the configuration method of the electrical device provided in the above-described embodiment. For example, the computer device may be a terminal in the implementation environment shown in FIG. 1. Specifically, the present invention relates to a method for manufacturing a semiconductor device.

The computer device 600 includes a processing unit (such as a CPU (Central Processing Unit, central processing unit), a GPU (Graphics Processing Unit, graphics processor), an FPGA (Field Programmable Gate Array ), etc.) 601, a system Memory 604 including a RAM (Random-Access Memory) 602 and a ROM (Read-Only Memory) 603, and a system bus 605 connecting the system Memory 604 and the central processing unit 601. The computer device 600 also includes an I/O system (Input Output System, basic input/output system) 606 for facilitating the transfer of information between the various devices within the server, and a mass storage device 607 for storing an operating system 613, application programs 614, and other program modules 615.

The I/O system 606 includes a display 608 for displaying information and an input device 609, such as a mouse, keyboard, etc., for a user to input information. Wherein the display 608 and the input device 609 are connected to the central processing unit 601 through an input output controller 610 connected to the system bus 605. The I/O system 606 may also include an input/output controller 610 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, the input output controller 610 also provides output to a display screen, a printer, or other type of output device.

The mass storage device 607 is connected to the central processing unit 601 through a mass storage controller (not shown) connected to the system bus 605. The mass storage device 607 and its associated computer-readable media provide non-volatile storage for the computer device 600. That is, the mass storage device 607 may include a computer readable medium (not shown) such as a hard disk or CD-ROM (Compact Disc Read-Only Memory) drive.

Without loss of generality, the computer readable medium may include computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state Memory technology, CD-ROM, DVD (Digital Video Disc, high density digital video disc) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will recognize that the computer storage medium is not limited to the ones described above. The system memory 604 and mass storage device 607 described above may be collectively referred to as memory.

The computer device 600 may also operate in accordance with embodiments of the present application through a network, such as the internet, to remote computers connected to the network. I.e., the computer device 600 may be connected to the network 612 through a network interface unit 611 coupled to the system bus 605, or alternatively, the network interface unit 611 may be used to connect to other types of networks or remote computer systems (not shown).

The memory also includes a computer program stored in the memory and configured to be executed by the one or more processors to implement the method of configuring an electrical device described above.

In an embodiment of the present application, there is also provided a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the above-described method of configuring an electrical device.

In an exemplary embodiment, a computer program product is also provided, which, when being executed by a processor, is adapted to carry out the above-mentioned method of configuring an electrical device.

It should be understood that references herein to "a plurality" are to two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The foregoing description of the exemplary embodiments of the present application is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the invention.

Claims

1. A method of configuring an electrical device for use in a computer device, the method comprising:

calculating the number of grid-connected points in the target area according to the project capacity and the grid-connected level;

determining the capacity of each grid-connected point according to the number of the grid-connected points, wherein the capacity of the grid-connected points refers to the total capacity of each photovoltaic module under the grid-connected points;

for the s-th grid-connected point in the grid-connected points, determining the number of inverters under the s-th grid-connected point according to the position and the capacity of the s-th grid-connected point, wherein s is a positive integer;

determining the maximum box variable under the s-th grid-connected point according to the number of the inverters under the s-th grid-connected point;

Determining the number and the model of the box transformer under the s-th grid-connected point according to the maximum box variable and the box transformer model;

determining the position of the box transformer under the s-th grid-connected point according to the position of the inverter under the s-th grid-connected point;

for the t-th grid-connected point in the grid-connected points, determining an output end access point of a combiner box under the t-th grid-connected point according to the grid-connected level, wherein t is a positive integer;

calculating the distance L between each inverter and the access point of the output end of the combiner box according to the position of the inverter at the t-th grid-connected point _i The L is _i The i is a positive number, and the i is a positive integer;

determining the model of the combiner box at the t-th grid-connected point according to the minimum value of the distance;

determining whether the input end access points of the combiner box under the t-th grid-connected point meet all access inverters;

if the input end access point of the combiner box under the t-th grid-connected point meets all access inverters, determining the position of the combiner box under the t-th grid-connected point as the position of the inverter corresponding to the minimum value of the distance;

if the input end access point of the combiner box under the t-th grid-connected point does not meet all the access inverters, changing the model of the combiner box under the t-th grid-connected point, and executing again from the step of determining whether the input end access point of the combiner box under the t-th grid-connected point meets all the access inverters.

2. The method of claim 1, wherein after calculating the number of points and the capacity of each point according to the project capacity and the grid-tie level, further comprising:

acquiring n roofs included in the target area, and a roof area and a roof shape of each roof, wherein n is a positive integer greater than or equal to 1;

determining grid-connected points corresponding to the n roofs according to the roof areas of the roofs, and numbering the n grid-connected points according to the numbers of the n roofs;

and determining the setting positions of the n grid-connected points according to the roof shape.

3. The method according to claim 2, wherein determining the set position of each of the n grid-connected points according to the roof shape includes:

for an mth roof of the n roofs, acquiring a centroid of the mth roof and an azimuth angle of the mth roof, wherein m is a positive integer;

determining a midpoint connection closest to an azimuth of the mth roof, the midpoint connection being a connection between a centroid of the mth roof and a center of each edge of the mth roof;

Extending the connecting line outwards by k meters along a vector direction, wherein the vector direction refers to the direction that the centroid of the m-th roof points to the middle point of each side of the m-th roof, and k is a positive integer;

and determining the end point of the connecting line as the setting position of the point of connection corresponding to the m-th roof.

4. The method of claim 1, wherein determining the location of the box-section at the s-th grid-tie point based on the location of the inverter at the s-th grid-tie point comprises:

calculating the mass center of the inverter under the s-th grid-connected point according to the position of the inverter under the s-th grid-connected point;

taking the mass center of the inverter under the s-th grid-connected point as a starting point, taking the position of the s-th grid-connected point as a ray, and determining an intersection point between the ray and a roof;

determining the intersection point farthest from the s-th grid-connected point as a target intersection point in the intersection points between the rays and the roof;

and extending the target intersection point outwards by p meters along the direction of the ray, and determining the extended target intersection point as the position of the box transformer under the s-th grid-connected point, wherein p is a positive integer.

5. An arrangement for an electrical device, the arrangement comprising:

the grid-connected point calculating module is used for calculating the number of the grid-connected points in the target area according to the project capacity and the grid-connected level; determining the capacity of each grid-connected point according to the number of the grid-connected points, wherein the capacity of the grid-connected points refers to the total capacity of each photovoltaic module included by the grid-connected points;

the inverter determining submodule is used for determining the number of inverters under the s-th grid-connected point according to the position and the capacity of the s-th grid-connected point for the s-th grid-connected point, wherein s is a positive integer;

the maximum box variable determining submodule is used for determining the maximum box variable under the s-th grid-connected point according to the number of the inverters under the s-th grid-connected point;

the box variable number determining submodule is used for determining the number and the model of the box transformer substation under the s-th grid-connected point according to the maximum box variable number and the box transformer substation model;

the box position determining submodule is used for determining the position of the box transformer substation at the s-th grid-connected point according to the position of the inverter at the s-th grid-connected point;

The access point determining submodule is used for determining an output end access point of the combiner box under the t-th grid-connected point according to the grid-connected grade for the t-th grid-connected point in the grid-connected points, wherein t is a positive integer;

a distance calculating sub-module for calculating the distance L between each inverter and the access point of the output end of the combiner box according to the position of the inverter at the t-th grid-connected point _i The L is _i The i is a positive number, and the i is a positive integer;

the model determining submodule is used for determining the model of the combiner box at the t-th grid-connected point according to the minimum value of the distance;

the condition determining submodule is used for determining whether the input end access point of the combiner box under the t-th grid-connected point meets all access inverters or not; if the input end access point of the combiner box under the t-th grid-connected point meets all access inverters, determining the position of the combiner box under the t-th grid-connected point as the position of the inverter corresponding to the minimum value of the distance; if the input end access point of the combiner box under the t-th grid-connected point does not meet all the access inverters, changing the model of the combiner box under the t-th grid-connected point, and executing again from the step of determining whether the input end access point of the combiner box under the t-th grid-connected point meets all the access inverters.

6. A computer device comprising a processor and a memory, the memory having stored therein a computer program that is loaded and executed by the processor to implement the method of any of claims 1 to 4.

7. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the method according to any one of claims 1 to 4.