CN113935138A

CN113935138A - Photovoltaic power station arrangement method and device and electronic equipment

Info

Publication number: CN113935138A
Application number: CN202111016668.1A
Authority: CN
Inventors: 王帅; 佘海峰; 昌菁; 吴嘉玮
Original assignee: Longji Photovoltaic Technology Shanghai Co ltd
Current assignee: Longji Photovoltaic Technology Shanghai Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-14

Abstract

The disclosure relates to a photovoltaic power station arrangement method, a photovoltaic power station arrangement device and electronic equipment, wherein the method comprises the following steps: obtaining design parameters, wherein the design parameters comprise size parameters and power of a photovoltaic module and a target volume ratio of a photovoltaic power station; generating an arrangement scheme of a photovoltaic array in the photovoltaic field area according to the size parameters of the photovoltaic module; determining at least two candidate numbers of the inverters according to the target alternating current total capacity of the inverters and the rated power of the inverters; for each candidate quantity, determining a capacity ratio corresponding to the candidate quantity according to the candidate quantity, the quantity of photovoltaic arrays distributed in the photovoltaic field region, the power of the photovoltaic assembly and the rated power of the inverter; determining one of the candidate quantities as the configuration quantity of the inverter according to the capacity ratio corresponding to each candidate quantity and the target capacity ratio; and generating an arrangement scheme of the inverters and the combiner boxes according to the arrangement number. Therefore, when the design parameters are adjusted, the arrangement scheme can be regenerated, so that the workload during design is reduced, and the efficiency is improved.

Description

Photovoltaic power station arrangement method and device and electronic equipment

Technical Field

The disclosure relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power station arrangement method, a photovoltaic power station arrangement device and electronic equipment.

Background

In the photovoltaic industry, designing professional ground photovoltaic power stations has been a professional and complex task.

When the ground photovoltaic power station is designed in a traditional mode, engineers need to rely on technical experience and perform relevant parameter calculation, array arrangement and electrical scheme design through CAD engineering software. In the design process, in order to achieve the optimal design scheme, iterative fine tuning is often required to be performed on input parameters, so that the overall arrangement scheme and the electrical scheme are correspondingly changed, the CAD drawing needs to be readjusted, a large amount of reworking is caused, the workload of the design work is greatly increased, the efficiency is low, and errors are easy to generate.

Disclosure of Invention

The invention aims to provide a photovoltaic power station arrangement method, a photovoltaic power station arrangement device and electronic equipment, so that workload during photovoltaic power station design can be reduced, and design efficiency is improved.

In order to achieve the above object, a first aspect of the present disclosure provides a photovoltaic power plant arrangement method, including:

obtaining design parameters, wherein the design parameters comprise size parameters of a photovoltaic module, power of the photovoltaic module and a target capacity ratio of a photovoltaic power station;

generating an arrangement scheme of a photovoltaic array in a photovoltaic field area according to the size parameters of the photovoltaic modules, wherein the photovoltaic array comprises a plurality of photovoltaic modules;

determining at least two candidate quantities of inverters according to a target total alternating current capacity of the inverters and a rated power of the inverters, wherein the target total alternating current capacity is determined according to the power of the photovoltaic module, the quantity of the photovoltaic arrays arranged in the photovoltaic field area and the target capacity ratio;

for each candidate quantity, determining a capacity ratio corresponding to the candidate quantity according to the candidate quantity, the quantity of the photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic assembly and the rated power of the inverter;

determining one of the candidate quantities as the configuration quantity of the inverter according to the capacity ratio corresponding to each candidate quantity and the target capacity ratio;

and generating the configuration scheme of the inverters and the combiner boxes according to the configuration quantity.

Optionally, the determining, according to the capacity ratio corresponding to each candidate quantity and the target capacity ratio, that one of the candidate quantities is the configured quantity of the inverter includes:

determining the absolute value of the difference value between the capacity ratio corresponding to each candidate quantity and the target capacity ratio;

determining the candidate number with the smallest absolute value of the difference value as the configuration number.

Optionally, the determining, according to the candidate number, the number of the photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic module, and the rated power of the inverter, a capacity ratio corresponding to the candidate number includes:

determining the expected installation number of the photovoltaic arrays according to the number of the photovoltaic arrays arranged in the photovoltaic field area and the candidate number;

determining the expected total direct current capacity of the photovoltaic power station according to the expected installation number and the power of each photovoltaic assembly;

determining an expected total AC capacity of the inverter based on the candidate number and a rated power of the inverter;

and determining the capacity ratio corresponding to the candidate quantity according to the expected DC total capacity and the expected AC total capacity.

Optionally, the determining at least two candidate numbers of the inverters according to the target total ac capacity of the inverters and the rated power of the inverters includes:

dividing the target total AC capacity by the rated power of the inverter and rounding up to obtain a candidate number of the inverter;

dividing the target total AC capacity by the rated power of the inverter and rounding down to obtain another candidate number of the inverter.

Optionally, the generating the arrangement scheme of the inverters and the combiner boxes according to the arrangement number includes:

determining the installation number of the photovoltaic arrays according to the configuration number of the inverters and the number of the photovoltaic arrays arranged in the photovoltaic field area;

determining the total number of the photovoltaic string according to the installation number of the photovoltaic arrays and the number of the photovoltaic string on each photovoltaic array, wherein each photovoltaic string comprises a plurality of photovoltaic modules connected in series;

determining the number of each inverter connected into the photovoltaic string according to the total number of the photovoltaic strings and the configuration number of the inverters;

determining the number of combiner boxes corresponding to each inverter according to the number of the inverters accessed into the photovoltaic group strings and the maximum number of the combiner boxes accessed into the photovoltaic group strings;

and generating the arrangement scheme of the inverters and the combiner boxes according to the arrangement number of the inverters and the number of the combiner boxes corresponding to each inverter.

Optionally, determining, according to the total number of the pv strings and the configured number of the inverters, the number of each inverter connected to the pv string includes:

dividing the total number of the photovoltaic string groups by the configuration number of the inverters to obtain a first remainder;

for the inverters with the first remainder, dividing the total number of the photovoltaic string by the configuration number of the inverters and rounding up to obtain the number of the inverters connected into the photovoltaic string;

and for the rest inverters, dividing the total number of the photovoltaic string groups by the configuration number of the inverters and rounding down to obtain the number of the inverters connected into the photovoltaic string groups.

Optionally, the determining, according to the number of the inverters accessing the photovoltaic string and the maximum number of the combiner boxes accessing the photovoltaic string, the number of the combiner boxes corresponding to each inverter includes:

dividing the number of the inverters which are connected into the photovoltaic group strings with the maximum number of the combiner boxes which are connected into the photovoltaic group strings, and rounding up to obtain the number of the combiner boxes corresponding to the inverters.

Optionally, the generating an arrangement scheme of the inverters and the combiner boxes according to the number of the arranged inverters and the number of the combiner boxes corresponding to each inverter includes:

for each inverter, dividing the number of the inverters connected into the photovoltaic group string by the number of the junction boxes corresponding to the inverters to obtain a second remainder;

in the combiner boxes corresponding to the inverters, for a second remaining number of combiner boxes, dividing the number of the photovoltaic string accessed by the inverters by the number of the combiner boxes corresponding to the inverters and rounding up to obtain the number of the photovoltaic string accessed by the combiner boxes;

and for other combiner boxes corresponding to the inverter, dividing the number of the photovoltaic group strings accessed by the inverter by the number of the combiner boxes corresponding to the inverter and rounding downwards to obtain the number of the photovoltaic group strings accessed by the combiner boxes.

A second aspect of the present disclosure provides a photovoltaic power plant arrangement device, including:

the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is configured to acquire design parameters, and the design parameters comprise size parameters of a photovoltaic assembly, power of the photovoltaic assembly and a target capacity ratio of a photovoltaic power station;

a first generation module configured to generate an arrangement scheme of a photovoltaic array within a photovoltaic field area according to a size parameter of the photovoltaic module, wherein the photovoltaic array includes a plurality of the photovoltaic modules;

a first determination module configured to determine at least two candidate numbers of inverters according to a target total ac capacity of an inverter and a rated power of the inverter, wherein the target total ac capacity is determined according to a power of the photovoltaic module, a number of the photovoltaic arrays arranged within the photovoltaic field region, and the target capacity ratio;

a second determining module configured to determine, for each of the candidate quantities, a capacity ratio corresponding to the candidate quantity according to the candidate quantity, the quantity of the photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic module, and the rated power of the inverter;

a third determining module configured to determine one of the candidate quantities as the configured quantity of the inverter according to the capacity ratio corresponding to each of the candidate quantities and the target capacity ratio;

and the second generation module is configured to generate the arrangement scheme of the inverters and the combiner boxes according to the arrangement number.

Optionally, the third determining module is configured to determine one of the candidate quantities as the configured quantity of the inverter according to the capacity ratio corresponding to each of the candidate quantities and the target capacity ratio by:

Optionally, the second determining module is configured to determine a capacity ratio corresponding to the candidate number according to the candidate number, the number of the photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic module, and the rated power of the inverter by:

Optionally, the first determination module is configured to determine at least two candidate numbers of inverters according to a target total ac capacity of the inverters and a rated power of the inverters by:

Optionally, the second generating module includes:

a first determination submodule configured to determine the number of installations of the photovoltaic arrays according to the configured number of the inverters and the number of the photovoltaic arrays arranged in the photovoltaic field area;

a second determining submodule configured to determine a total number of the photovoltaic group strings according to the installation number of the photovoltaic arrays and the number of the photovoltaic group strings on each of the photovoltaic arrays, wherein each of the photovoltaic group strings comprises a plurality of the photovoltaic modules connected in series;

a third determining submodule configured to determine, according to the total number of the photovoltaic string and the configured number of the inverters, the number of each of the inverters accessing the photovoltaic string;

a fourth determining submodule configured to determine the number of combiner boxes corresponding to each inverter according to the number of the inverters connected to the photovoltaic string and the maximum number of the combiner boxes connected to the photovoltaic string;

the first generation submodule is configured to generate an arrangement scheme of the inverters and the combiner boxes according to the arrangement number of the inverters and the number of the combiner boxes corresponding to each inverter.

Optionally, the third determining submodule is configured to determine the number of each inverter connected to the string of photovoltaic groups according to the total number of strings of photovoltaic groups and the configured number of inverters by:

Optionally, the fourth determining submodule is configured to determine the number of combiner boxes corresponding to each inverter according to the number of each inverter connected to the pv string and the maximum number of combiner boxes connected to the pv string by:

Optionally, the first generation submodule is configured to generate the arrangement scheme of the inverters and the combiner boxes according to the arrangement number of the inverters and the number of the combiner boxes corresponding to each inverter by:

A third aspect of the present disclosure provides an electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method provided by the first aspect of the present disclosure.

Through the technical scheme, the arrangement scheme of the photovoltaic array can be generated in the photovoltaic field area by acquiring the design parameters, and when the design parameters are adjusted, the arrangement scheme of the photovoltaic array can be regenerated according to the adjusted design parameters, so that the workload of the photovoltaic power station during design can be reduced, and the design efficiency is improved.

Meanwhile, at least two candidate quantities of the inverter can be determined according to the target alternating current total capacity of the inverter and the rated power of the inverter, the capacity ratio corresponding to each candidate quantity is respectively calculated, finally, the most suitable candidate quantity is determined as the configuration quantity of the inverter according to the capacity ratio corresponding to each candidate quantity and the target capacity ratio, and the configuration scheme of the inverter and the junction box is generated according to the configuration quantity. Therefore, by comparing the plurality of candidate quantities of the inverter, the candidate quantity with the capacity ratio closest to the target capacity ratio can be selected as the configuration quantity, so that the actual capacity ratio of the photovoltaic power station is closer to the target capacity ratio.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a flow chart of a photovoltaic power plant arrangement method provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a flow chart of a photovoltaic power plant arrangement method provided by another exemplary embodiment of the present disclosure;

FIG. 3 is a flow chart of a photovoltaic power plant arrangement method provided by another exemplary embodiment of the present disclosure;

FIG. 4 is a flow chart of a photovoltaic power plant arrangement method provided by yet another exemplary embodiment of the present disclosure;

FIG. 5 is a flow chart of a photovoltaic power plant arrangement method provided by yet another exemplary embodiment of the present disclosure;

FIG. 6 is a schematic illustration of a photovoltaic array installation tilt angle provided by an exemplary embodiment of the present disclosure;

FIG. 7 is a schematic spacing diagram of a grating assembly in a photovoltaic array provided by an exemplary embodiment of the present disclosure;

FIG. 8 is a schematic view of a photovoltaic array P-type arrangement provided by an exemplary embodiment of the present disclosure;

FIG. 9 is a schematic view of an L-shaped arrangement of photovoltaic arrays provided by an exemplary embodiment of the present disclosure;

fig. 10 is a schematic diagram of a photovoltaic power generation electronic unit and a secondary road provided in an exemplary embodiment of the present disclosure;

FIG. 11 is a schematic diagram of a photovoltaic power generation unit and a main road provided by an exemplary embodiment of the present disclosure;

FIG. 12 is a block diagram of a photovoltaic power plant arrangement provided by an exemplary embodiment of the present disclosure;

fig. 13 is a block diagram of an electronic device provided by an exemplary embodiment of the present disclosure.

Description of the reference numerals

10 photovoltaic module 20 photovoltaic array

30 sub-array

40 square matrix

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

A possible application scenario of the present disclosure is first explained.

As described in the background art, when a ground photovoltaic power station is designed in a conventional manner, engineers need to rely on technical experience and perform related parameter calculation, array arrangement and electrical scheme design through CAD engineering software. However, when parameters are adjusted, the overall arrangement scheme and the electrical scheme are correspondingly changed, the CAD drawing needs to be readjusted, a large amount of rework is caused, the workload of design work is greatly increased, the efficiency is low, and errors are easy to generate.

In view of this, the present disclosure provides a photovoltaic power station arrangement method, device and electronic device, so as to reduce workload during photovoltaic power station design and improve design efficiency.

Fig. 1 is a flowchart of a photovoltaic power plant arrangement method according to an exemplary embodiment of the present disclosure. Referring to fig. 1, the photovoltaic power plant arrangement method may include steps S11 to S16.

In step S11, design parameters are obtained, wherein the design parameters may include a size parameter of the photovoltaic module, a power of the photovoltaic module, and a target capacity ratio of the photovoltaic power plant.

For example, the design parameters may be obtained by designer input.

In step S12, an arrangement of a photovoltaic array is generated within the photovoltaic field area according to the size parameters of the photovoltaic modules, wherein the photovoltaic array includes a plurality of photovoltaic modules.

According to the size parameters of the photovoltaic module, the size parameters of the photovoltaic array can be determined, and then the arrangement scheme of the photovoltaic array can be generated in the photovoltaic field region according to the size parameters of the photovoltaic array.

The photovoltaic field area can be determined by inputting corresponding size parameters by a designer.

In a possible embodiment, when the inverters and the combiner boxes of the photovoltaic array are determined, the total capacity of the inverters can be calculated according to the target capacity ratio, the power of the photovoltaic array, the number of the photovoltaic arrays and the rated power of the inverters, and the number of the inverters can be obtained by rounding down the total capacity of the inverters. Therefore, the capacity ratio of the photovoltaic power station can only be close to the target capacity ratio to a certain extent.

The inverter can be better configured through steps S13 to S15 to make the capacity ratio of the photovoltaic power plant as close to the target capacity ratio as possible.

Specifically, in step S13, at least two candidate numbers of inverters are determined according to a target total ac capacity of the inverters and rated power of the inverters, wherein the target total ac capacity is determined according to power of the photovoltaic module, number of photovoltaic arrays arranged in the photovoltaic field region, and a target capacity ratio.

It is understood that the target capacity-to-capacity ratio is obtained by dividing the target total dc capacity by the target total ac capacity. The power of the photovoltaic array can be determined according to the power of the photovoltaic module, and the target direct current total capacity can be determined according to the power of the photovoltaic array and the number of the photovoltaic arrays arranged in the photovoltaic field region. And determining the target AC total capacity according to the target DC total capacity and the obtained target capacity ratio. At least two candidate numbers of inverters may be determined based on the target total ac capacity and the power rating of each inverter.

In step S14, for each candidate number, a capacity ratio corresponding to the candidate number may be determined according to the candidate number, the number of photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic module, and the rated power of the inverter. Thus, the capacity ratio corresponding to each candidate number can be determined.

In step S15, one of the candidate numbers is determined as the number of inverters to be configured according to the capacity ratio corresponding to each candidate number and the target capacity ratio.

It can be understood that, according to the capacity ratio corresponding to each candidate quantity and the target capacity ratio, the capacity ratio closest to the target capacity ratio may be determined, and then the candidate quantity corresponding to the capacity ratio may be determined as the configuration quantity of the inverter. Therefore, the capacity ratio of the photovoltaic power station is closer to the target capacity ratio, and the consideration of the installation quantity of the photovoltaic arrays and the capacity ratio is realized.

In step S16, an arrangement of inverters and combiner boxes is generated according to the number of arrangements.

Through the scheme, the design efficiency of the photovoltaic power station can be improved, the configuration quantity of the inverters can be optimized, the installation quantity of photovoltaic arrays is guaranteed, and the capacity ratio of the photovoltaic power station is close to the target capacity ratio.

Fig. 2 is a flowchart of a photovoltaic power plant arrangement method according to another exemplary embodiment of the present disclosure. Referring to fig. 2, in one possible implementation, step S15 may include step S151 and step S152.

In step S151, the absolute value of the difference between the capacity ratio corresponding to each candidate number and the target capacity ratio is determined.

It is understood that the absolute value of the difference between the capacity ratio corresponding to each candidate quantity and the target capacity ratio may reflect the closeness of the capacity ratio corresponding to each candidate quantity and the target capacity ratio.

In step S152, the number of candidates whose absolute value of the difference is the smallest is determined as the configuration number.

And if the absolute value of the difference value between the capacity ratio corresponding to the candidate quantity and the target capacity ratio is minimum, the capacity ratio corresponding to the candidate quantity is closest to the target capacity ratio. Therefore, the candidate quantity is determined as the configuration quantity, so that the capacity ratio of the photovoltaic power station is closer to the target capacity ratio.

Fig. 3 is a flowchart of a photovoltaic power plant arrangement method according to another exemplary embodiment of the present disclosure. Referring to fig. 3, in one possible embodiment, step S14 may include step S141 to step S144.

In step S141, an expected installation number of the photovoltaic arrays is determined according to the number of the photovoltaic arrays arranged in the photovoltaic field region and the candidate number.

Since the installation of the inverters in the photovoltaic field occupies the installation positions of the photovoltaic arrays, the number of photovoltaic arrays reduced when the inverter with the candidate number is installed can be determined according to the candidate number, and the expected installation number of the photovoltaic arrays corresponding to the candidate number can be determined according to the reduced number and the number of the photovoltaic arrays arranged in the photovoltaic field.

For example, if the inverter is installed in the photovoltaic field to occupy 1 installation position of the photovoltaic array, the number of photovoltaic arrays reduced when the inverter with the candidate number is installed is the same as the candidate number in value, so the number of photovoltaic arrays arranged in the photovoltaic field area may be differentiated from the candidate number to determine the expected installation number of the photovoltaic arrays corresponding to the candidate number.

In step S142, an expected total dc capacity of the photovoltaic power plant is determined according to the expected installation number and the power of each photovoltaic module.

The power of the photovoltaic array may be determined based on the power of each photovoltaic module, and the number of photovoltaic modules on the photovoltaic array. In this way, from the expected number of installations of photovoltaic arrays and the power of the photovoltaic arrays, the expected total dc capacity of the photovoltaic power plant can be determined.

In step S143, the expected total ac capacity of the inverter is determined based on the candidate number and the rated power of the inverter.

From the candidate number of inverters and the rated power of the inverters, an expected ac total capacity of the inverters may be determined.

For each candidate number, the expected total dc capacity and the expected total ac capacity corresponding to the candidate number may be determined through steps S141 to S143.

In step S144, the capacity ratio corresponding to the candidate number is determined according to the expected total dc capacity and the expected total ac capacity.

Thus, the capacity ratio corresponding to each candidate number can be obtained.

Fig. 4 is a flowchart of a photovoltaic power plant arrangement method according to another exemplary embodiment of the present disclosure. Referring to fig. 4, in one possible embodiment, step S13 may include step S131 and step S132.

In step S131, the target ac total capacity is divided by the rated power of the inverter and rounded up to obtain a candidate number of inverters. In step S132, the target total ac capacity is divided by the rated power of the inverter and rounded down to obtain another candidate number of inverters.

Since the target ac total capacity and the rated power of the inverter cannot be evenly divided in most cases, after two candidate quantities are obtained by dividing the target ac total capacity and the rated power of the inverter and rounding up and rounding down respectively, the capacity ratio corresponding to the two candidate quantities is closest to the target capacity ratio. Therefore, the candidate quantity with the minimum absolute value of the difference value between the corresponding capacity ratio and the target capacity ratio in the two candidate quantities is used as the configuration quantity of the inverter, so that the capacity ratio of the photovoltaic power station is closest to the target capacity ratio.

Fig. 5 is a flowchart of a photovoltaic power plant arrangement method according to another exemplary embodiment of the present disclosure. Referring to fig. 5, in one possible embodiment, step S16 may include steps S161 to S165.

In step S161, the number of photovoltaic arrays to be installed is determined according to the number of inverters to be arranged and the number of photovoltaic arrays to be arranged in the photovoltaic field area.

The installation of the inverters in the photovoltaic field occupies the installation positions of the photovoltaic arrays, so that the number of the photovoltaic arrays reduced during the installation of the inverters in the configuration number can be determined according to the configuration number, and the installation number of the photovoltaic arrays corresponding to the configuration number can be determined according to the configuration number and the number of the photovoltaic arrays arranged in the photovoltaic field.

In step S162, a total number of pv strings is determined according to the number of installed pv arrays and the number of pv strings on each pv array, where each pv string includes a plurality of pv modules connected in series.

In step S163, the number of each inverter connected to the pv string is determined according to the total number of pv strings and the configured number of inverters.

In this way, the distribution of the number of the photovoltaic string accessed by each inverter can be realized.

In step S164, the number of combiner boxes corresponding to each inverter is determined according to the number of each inverter connected to the pv string and the maximum number of combiner boxes connected to the pv string.

In step S165, an arrangement of inverters and combiner boxes is generated based on the number of inverters arranged and the number of combiner boxes corresponding to each inverter.

For example, determining the number of each inverter connected to the string of photovoltaic groups according to the total number of strings of photovoltaic groups and the configured number of inverters may include: the total number of the photovoltaic string is divided by the configured number of the inverters to obtain a first remainder. For the first remaining number of inverters, dividing the total number of the photovoltaic string groups by the configuration number of the inverters and rounding up to obtain the number of the inverters connected into the photovoltaic string groups; and for the other inverters, dividing the total number of the photovoltaic string groups by the configuration number of the inverters and rounding down to obtain the number of the inverters connected into the photovoltaic string groups.

In the scheme, under the condition that the total number of the photovoltaic string groups cannot be evenly divided by the configuration number of the inverters, the photovoltaic string groups can be evenly distributed to the inverters. Of course, in the case that the total number of the pv strings can be evenly divided by the configured number of the inverters, a quotient obtained by dividing the total number of the pv strings by the configured number of the inverters may be directly used as the number of the pv strings connected to each inverter.

For example, determining the number of combiner boxes corresponding to each inverter according to the number of each inverter connected to the photovoltaic string and the maximum number of combiner boxes connected to the photovoltaic string may include: dividing the number of each inverter connected into the photovoltaic group strings by the maximum number of the combiner boxes connected into the photovoltaic group strings and rounding up to obtain the number of the combiner boxes corresponding to the inverters.

So, can reduce the setting of unnecessary collection flow box, the reduce cost of being convenient for is convenient for maintain simultaneously

For example, generating the configuration scheme of the inverters and the combiner boxes according to the configuration number of the inverters and the corresponding combiner box number of each inverter may include:

for each inverter, dividing the number of the photovoltaic group strings accessed by the inverter by the number of the combiner boxes corresponding to the inverter to obtain a second remainder; in the combiner boxes corresponding to the inverters, for the second remaining combiner boxes, dividing the number of the photovoltaic string accessed by the inverters by the number of the combiner boxes corresponding to the inverters and rounding up to obtain the number of the photovoltaic string accessed by the combiner boxes; and for other combiner boxes corresponding to the inverter, dividing the number of the photovoltaic group strings accessed by the inverter by the number of the combiner boxes corresponding to the inverter and rounding downwards to obtain the number of the photovoltaic group strings accessed by the combiner boxes.

In this way, for each inverter, the photovoltaic string of the inverter can be evenly distributed to the respective combiner boxes when the number of the photovoltaic strings accessed by the inverter is not evenly divisible by the number of the combiner boxes corresponding to the inverter.

Of course, in the case that the number of the photovoltaic string connected to the inverter is divisible by the number of the combiner boxes corresponding to the inverter. The quotient of the number of the inverters connected into the photovoltaic string and the number of the combiner boxes corresponding to the inverters can be directly used as the number of each combiner box corresponding to the inverter connected into the photovoltaic string.

Fig. 6 is a schematic view of an installation inclination angle of a photovoltaic array provided in an exemplary embodiment of the present disclosure, fig. 7 is a schematic view of a pitch of grating assemblies in the photovoltaic array provided in an exemplary embodiment of the present disclosure, fig. 8 is a schematic view of a P-type arrangement of the photovoltaic array provided in an exemplary embodiment of the present disclosure, fig. 9 is a schematic view of an L-type arrangement of the photovoltaic array provided in an exemplary embodiment of the present disclosure, fig. 10 is a schematic view of a photovoltaic power generation electronic unit and a secondary road provided in an exemplary embodiment of the present disclosure, and fig. 11 is a schematic view of a photovoltaic power generation unit and a primary road provided in an exemplary embodiment of the present disclosure.

Referring to fig. 6-11, in one possible embodiment, a designer may first input design parameters, which may include, for example, dimensional parameters of the photovoltaic module (which may include, for example, the length and width of the photovoltaic module).

In a ground photovoltaic plant, several photovoltaic modules are assembled mechanically and electrically in such a way as to form a direct current power generation unit with fixed supports, called a photovoltaic array, usually rectangular.

The storage device can be stored with the arrangement forms of the P-type photovoltaic array and the L-type photovoltaic array in advance. Wherein, P type (also called vertical row) form can be that the photovoltaic module minor face is parallel with ground, and L type (also called horizontal row) can be that the photovoltaic module long limit is parallel with ground.

After receiving an arrangement form selection instruction corresponding to the P type or the L type by a designer, the width and the length of the photovoltaic array can be calculated. Specifically, if the arrangement form indicated by the arrangement form selection instruction is P-type, the dimension parameter of the photovoltaic array may be calculated by the following formula (for example, the dimension parameter of the photovoltaic array may include a projection width and a projection length of the photovoltaic array on a horizontal plane):

W_T＝(N_v×L_m+(N_v-1)×d_v)×cosθ (1)

L_T＝N_h×W_m+(N_h-1)×d_h (2)

in the formula (1) and the formula (2), W_TIs the projection width of the photovoltaic array on the horizontal plane, L_TIs the projected length of the photovoltaic array on the horizontal plane, N_vNumber of photovoltaic modules arranged in a vertical direction (parallel to the width direction of the photovoltaic array) in the photovoltaic array, N_hThe number of photovoltaic modules arranged in the horizontal direction (parallel to the length direction of the photovoltaic array) in the photovoltaic array, d_vThe spacing between two adjacent photovoltaic modules in a photovoltaic array in the vertical direction in a plane parallel to the photovoltaic modules (see FIG. 7), d_hIs the distance between two adjacent photovoltaic modules in the horizontal direction in the photovoltaic array, L_mLength of the photovoltaic module, W_mθ is a mounting inclination angle of the photovoltaic module in terms of a width of the photovoltaic module (refer to fig. 6 and 7).

If the arrangement form indicated by the arrangement form selection instruction is N-type, the size parameter of the photovoltaic array can be calculated by the following formula:

W_T＝(N_v×W_m+(N_v-1)×d_v)×cosθ (3)

L_T＝N_h×L_m+(N_h-1)×d_h (4)

after determining the projection width and the projection length of the photovoltaic array on the horizontal plane, the row spacing of two adjacent photovoltaic arrays can be determined.

The shadow sheltering of the photovoltaic power station also has great influence on the generating capacity and the investment income of the power station. The internal structure of the single photovoltaic module is generally in a series-parallel connection mode, and each photovoltaic module in the single photovoltaic module string on the direct current side is also in a series connection mode. Therefore, the shadow shielding can not only cause the voltage imbalance among the photovoltaic group strings and influence the overall power generation amount, but also cause the hot spot effect of the photovoltaic module to further influence the performance of the photovoltaic module due to long-term local shadow shielding, and directly influence the service life of the photovoltaic module.

Ideally, the photovoltaic array should be installed in a place without shadow, however, obstacles such as trees, electrical equipment (e.g., inverters, junction boxes, etc.), etc. are inevitably present in the area of the photovoltaic field, and the photovoltaic array itself may also generate shadow. Therefore, in order to reduce the power generation loss caused by shadow shielding, when the photovoltaic arrays are arranged, the obstacles and the shadows are avoided, meanwhile, the installation number of the photovoltaic arrays is considered, and the space between the photovoltaic arrays is not suitable to be too large.

In one possible embodiment, the distance between two adjacent photovoltaic arrays in the vertical direction can be determined by:

D＝cosβ×H/tan(arcsinα) (5)

in the formula (5), D is the maximum shadow length, β is the solar azimuth angle, H is the height difference between the highest point of the front row of photovoltaic arrays (or other shelters) and the lowest point of the rear row of modules, and α is the solar altitude angle.

Wherein sin α in formula (5) can be determined by following formula:

in the formula (6), the first and second groups,

for local latitude (e.g., positive values in the northern hemisphere and negative values in the southern hemisphere), δ is the declination angle of the sun, and ω is the time angle.

The sine of β can be determined by the following equation:

sinβ＝cosδsinω/cosα (7)

after the sine value of β is determined, the cosine value of β may be determined from the sine value of β.

Because the solar altitude angle is the lowest in the winter solstice day of the year, the distance between two adjacent photovoltaic arrays in the vertical direction should be greater than 9 a.m. in the winter solstice day: 00 and 3 in the afternoon: the maximum length of the shadow in the 00 time period ensures that no shadow shielding occurs in the time period, and the shadow shielding does not occur in the better utilization range of the solar radiation in the photovoltaic array in one year.

Therefore, the solar declination angle δ of the winter solstice day is-23.5 °, 9 am: 00 and 3 in the afternoon: the hour angle ω of 00 is ± 45 °.

After determining the pitch of two adjacent photovoltaic arrays in the vertical direction, the row pitch p of the photovoltaic arrays can be determined by the following formula:

p＝W_T+D1 (8)

in the formula (8), D1 is the distance between two adjacent photovoltaic arrays in the vertical direction, and is numerically equal to 9 in the morning of the winter solstice day: 00 and 3 in the afternoon: the maximum length of the shadow for the 00 period is the same.

After the line spacing of the photovoltaic array is determined, the arrangement mode of the main road and the auxiliary road in the photovoltaic array can be determined.

Specifically, because the electric energy generated by the photovoltaic modules is direct current and cannot be directly connected with a power grid to send out the electric energy, the direct current needs to be converted into alternating current through an inverter after the photovoltaic modules are connected in series and in parallel, and then the electric energy is sent out by increasing the voltage through a transformer.

In one possible embodiment, N_strAfter the photovoltaic modules are connected in series, a photovoltaic module string is formed; n is a radical of_L1-strThe photovoltaic modules are connected in series and in parallel into a header box (also called photovoltaic power generation subunit), and the number of the photovoltaic power generation subunits in the photovoltaic power stationThe number of the confluence boxes is the same; n is a radical of_L2-L1The junction boxes are connected into inverters (for example, the junction boxes can be box inversion integrated machines) in parallel, the junction boxes are also called photovoltaic power generation units, and the number of the photovoltaic power generation units in the photovoltaic power station is the same as that of the junction boxes; and a power generation system formed by connecting the box inversion integrated machines in parallel to a power grid or the power grid is a photovoltaic power station.

When carrying out photovoltaic module and arranging, can leave the transportation and the maintenance passageway of case contravariant all-in-one, withdraw from the place when making things convenient for case contravariant all-in-one transportation, installation and maintenance, this passageway is the main road. There are several combiner boxes in a photovoltaic power generation unit, and the combiner boxes are usually small in size and are installed below the photovoltaic array. Because of having a plurality of photovoltaic group cluster to insert the collection flow box side by side, and the cable that the collection flow box is qualified for the next round of competitions to case contravariant all-in-one is great, can set up cable channel along the collection flow box, and the passageway when the maintainer tours the collection flow box is for assisting the road to this passageway simultaneously.

The design parameters may include the width DR of the main channel, the width D of the auxiliary channel_AAnd the column number N of the photovoltaic arrays which are continuously arranged when the auxiliary road is arranged_c-L1And the number N of rows of photovoltaic power generation subunits which are continuously arranged when the auxiliary road is arranged_c-L2。

Thus, each arrangement of N_c-L1A vertical auxiliary road with a width of D can be arranged on the column photovoltaic array_A，N_c-L1The width of the array of photovoltaic cells is the width L of the sub-array 30_L1(refer to FIG. 10), N per arrangement_c-L2A row of photovoltaic power generation sub-units, a vertical main road is arranged, and the width of the main road is D_R，N_c-L2The width of the photovoltaic power generation sub-units is the array width L of the square array 40_L2(refer to fig. 11).

The design parameters may also include the column pitch DT of the photovoltaic array.

The designer can input the size parameters of the photovoltaic field area so that the photovoltaic field area can be determined. The arrangement of the photovoltaic array can then be generated within the photovoltaic field region in the following manner:

arranging the photovoltaic arrays from left to right and from top to bottom according to the sizes of the photovoltaic arrays calculated in the formulas (1) to (4)Distributing a photovoltaic array, wherein the row spacing and the column spacing of the photovoltaic array are respectively p and D_T. At the same time, each arrangement of N_c-L1A column photovoltaic array, a vertical auxiliary road with a width of D_A(ii) a Each arranged with N_c-L2The photovoltaic power generation sub-units are arranged in a row, and a main road of a vertical line is arranged. Arranging the full photovoltaic array in the whole photovoltaic field area range from left to right in sequence from top to bottom, avoiding the obstacle according to the size of the photovoltaic array when encountering the obstacle, stopping arranging when the left space is insufficient to arrange the photovoltaic array, and automatically generating the arrangement scheme of the photovoltaic array in the photovoltaic field area range through the steps.

According to the arrangement scheme of the generated photovoltaic array generated in the photovoltaic field area, the number N 'of the photovoltaic arrays in the photovoltaic field area can be determined'_T。

Expected DC total capacity P 'in photovoltaic field region'_DCCan be calculated by the following formula:

P′_DC＝N′_T×P_T (9)

in formula (9), P_TCapacity (power) for a single photovoltaic array, P_TCan be calculated by the following formula:

P_T＝N_m-T×P_m (10)

in the formula (10), N_m-TNumber of photovoltaic modules, P, on a single photovoltaic array_mThe power of the single photovoltaic module.

In the art, the ratio of the total dc capacity of the photovoltaic power plant to the total ac capacity output by the inverter is referred to as a capacity ratio. The design parameters may include target capacity ratios of the photovoltaic power station.

At least two candidate numbers of inverters can be determined according to a target alternating current total capacity of the inverters and rated power of the inverters, wherein the target alternating current total capacity is determined according to power of the photovoltaic modules, the number of photovoltaic arrays arranged in the photovoltaic field area and a target capacity ratio.

In particular, the number of rounded-up candidates N may be determined_L2-up：

N_L2-up＝P′_DC/R_t/P_L2And rounded up. (11)

Wherein P is_L2Rated power, R, for box inverter integrated machine_tThe target volume ratio input by the designer.

Due to the large size of the box inversion all-in-one machine, if a plurality of photovoltaic arrays (for example, a pair of photovoltaic arrays) need to be removed after arrangement in a field range, the rounding-up candidate number N_L2-upCorresponding volume ratio R_upComprises the following steps:

R_up＝(N′_T-N_L2-up)×P_T/(N_L2-up×P_L2) (12)

rounded up number of candidates N_L2-downCan be determined by the following formula:

N_L2-down＝P′_DC/R_t/P_L2and get rounded downwards (13)

Rounded up number of candidates N_L2-downCorresponding volume ratio R_downComprises the following steps:

R_down＝(N′_T-N_L2-down)×P_T/(N_L2-down×P_L2) (14)

at this time, the absolute value Δ R of the difference between the volume ratio corresponding to the rounded-up candidate number and the target volume ratio may be determined_upAnd determining the absolute value delta R of the difference value between the volume ratio corresponding to the rounded-down candidate quantity and the target volume ratio_down。

If Δ R_down＜R_upIf the number of candidates rounded down can be determined as the configuration number of the box inversion all-in-one machine, then

Number N of box inversion integrated machine_L2＝N_L2-down (15)

The volume ratio of the photovoltaic power station is as follows: r_down，

Number of photovoltaic arrays installed N_TComprises the following steps: n is a radical of_T＝(N′_T-N_L2-down) (16)

If Δ R_down＞R_upThen the rounded-up candidate number can be determined as the bin inversionThe configuration number of the integrated machine is

Number N of box inversion integrated machine_L2＝N_L2-up (17)

The volume ratio is: r_up，

Number of photovoltaic arrays installed N_TComprises the following steps: n is a radical of_T＝(N′_T-N_L2-up) (18)

At the moment, the number of the photovoltaic arrays in the photovoltaic power station is the same as the number of the supports of the photovoltaic arrays in value.

Actual DC capacity P of photovoltaic power station_DCCan be determined by the following formula:

P_DC＝N_T×P_T (19)

total photovoltaic string number N in photovoltaic power plant_strComprises the following steps:

N_str＝N_str-T×N_T (20)

the distribution group string number of the box inversion all-in-one machine is as follows:

(N_str/N_L2remainder) number of access groups N of box inversion integrated machine_str-L2＝N_str/N_L2Rounding up;

N_L2-(N_str/N_L2remainder) number of access groups N of box inversion integrated machine_str-L2＝N_str/N_L2Rounding down;

for each case contravariant all-in-one, the total number of the combiner boxes is:

N_L1＝N_str-L2/N_str-L1and rounded up.

The number of distribution groups of the header box is

(N_str-L2/N_L1Remainder) number of combiner box access group strings N_str-L1＝N_str-l2/N_L1Rounding up;

N_L1-(N_str-L2/N_L1remainder) number of combiner box access group strings N_str-L1＝N_str-l2/N_L1And rounding down.

Generating an inverter and bus box configuration scheme according to the number of the inverters and the number of the bus boxes corresponding to each inverter, may include:

the photovoltaic string is used as a unit, the snake-shaped principle that the distance from a transformer substation is from far to near, the horizontal direction is followed by the vertical direction is adopted for matching, and every time the snake-shaped principle is matched with the N direction_str-l2And finishing a square matrix by each photovoltaic group string, and numbering the square matrix.

The box inversion all-in-one machine is arranged at the corner position of each photovoltaic power generation unit, the photovoltaic arrays at the corner of the lower left side of the area where the photovoltaic power generation units are located are deleted, and the box inversion all-in-one machine is arranged.

For each photovoltaic power generation unit, the photovoltaic group strings are used as units, the snake-shaped principle that the distance from the combiner box to the adjacent box is from far to near and the horizontal direction is followed by the vertical direction is adopted for matching, and every time the snake-shaped principle is matched with N_str-l1And (4) completing a subarray by each photovoltaic group string, and numbering the subarray and the photovoltaic group strings under the subarray.

The junction box is arranged at the corner position of each photovoltaic power generation subunit, and one junction box is arranged at the photovoltaic array at the lower left of the area where the photovoltaic power generation subunits are located.

In a possible implementation mode, the number of equipment materials such as components, box inversion integrated machines and combiner boxes arranged in the photovoltaic power station can be counted, and an equipment material inventory is generated.

FIG. 12 is a block diagram of a photovoltaic power plant arrangement 400 provided by an exemplary embodiment of the present disclosure.

Referring to fig. 12, based on the same inventive concept, the present disclosure further provides a photovoltaic power plant arrangement apparatus, including:

an obtaining module 401 configured to obtain design parameters, where the design parameters include a size parameter of a photovoltaic module, a power of the photovoltaic module, and a target capacity ratio of the photovoltaic power plant;

a first generating module 402, which may be configured to generate an arrangement of a photovoltaic array within the photovoltaic field area according to a size parameter of the photovoltaic module, wherein the photovoltaic array includes a plurality of photovoltaic modules;

a first determining module 403, which may be configured to determine at least two candidate numbers of inverters according to a target total ac capacity of the inverters and a rated power of the inverters, wherein the target total ac capacity is determined according to a power of the photovoltaic module, a number of photovoltaic arrays arranged in the photovoltaic field region, and a target capacity ratio;

a second determining module 404, configured to determine, for each candidate number, a capacity ratio corresponding to the candidate number according to the candidate number, the number of photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic module, and a rated power of the inverter;

a third determining module 405, which may be configured to determine one of the candidate quantities as a configured quantity of the inverter according to the capacity ratio corresponding to each candidate quantity and the target capacity ratio;

the second generating module 406 may be configured to generate an arrangement scheme of the inverters and the combiner boxes according to the arrangement number.

The photovoltaic array arrangement scheme can be generated in the photovoltaic field area by acquiring the design parameters, and when the design parameters are adjusted, the photovoltaic array arrangement scheme can be regenerated according to the adjusted design parameters, so that the workload of the photovoltaic power station during design can be reduced, and the design efficiency is improved.

For example, the third determining module 405 may be configured to determine one of the candidate numbers as the configured number of the inverter according to the capacity ratio corresponding to each candidate number and the target capacity ratio by:

and determining the candidate number with the minimum absolute value of the difference value as the configuration number.

For example, the second determining module 404 may be configured to determine the capacity ratio corresponding to the candidate number according to the candidate number, the number of photovoltaic arrays arranged within the photovoltaic field area, the power of the photovoltaic module, and the rated power of the inverter by:

determining an expected total AC capacity of the inverter according to the candidate number and the rated power of the inverter;

and determining the capacity ratio corresponding to the candidate quantity according to the expected total direct current capacity and the expected total alternating current capacity.

For example, the first determination module 403 may be configured to determine at least two candidate numbers of inverters according to the target total ac capacity of the inverters and the rated power of the inverters by:

dividing the target alternating current total capacity by the rated power of the inverter and rounding up to obtain a candidate number of the inverter;

the target total ac capacity is divided by the rated power of the inverter and rounded down to obtain another candidate number of inverters.

Illustratively, the second generating module 406 may include:

the first determining submodule can be configured to determine the installation number of the photovoltaic arrays according to the configuration number of the inverters and the number of the photovoltaic arrays arranged in the photovoltaic field area;

a second determining submodule configured to determine a total number of photovoltaic string according to the number of installed photovoltaic arrays and the number of photovoltaic string strings on each photovoltaic array, wherein each photovoltaic string includes a plurality of photovoltaic modules connected in series;

a third determining submodule configured to determine, according to the total number of the photovoltaic string and the configured number of the inverters, the number of each inverter connected to the photovoltaic string;

the fourth determining submodule can be configured to determine the number of the combiner boxes corresponding to each inverter according to the number of the photovoltaic string accessed by each inverter and the maximum number of the photovoltaic string accessed by the combiner boxes;

the first generation submodule can be configured to generate an arrangement scheme of the inverters and the combiner boxes according to the arrangement number of the inverters and the number of the combiner boxes corresponding to each inverter.

Illustratively, the third determining submodule is configured to determine the number of each inverter accessing the string of photovoltaic groups according to the total number of strings of photovoltaic groups and the configured number of inverters by:

for the first remaining number of inverters, dividing the total number of the photovoltaic string groups by the configuration number of the inverters and rounding up to obtain the number of the inverters connected into the photovoltaic string groups;

and for the other inverters, dividing the total number of the photovoltaic string groups by the configuration number of the inverters and rounding down to obtain the number of the inverters connected into the photovoltaic string groups.

Illustratively, the fourth determining submodule is configured to determine the number of combiner boxes corresponding to each inverter according to the number of each inverter connected to the photovoltaic string and the maximum number of combiner boxes connected to the photovoltaic string by:

dividing the number of each inverter connected into the photovoltaic group strings by the maximum number of the combiner boxes connected into the photovoltaic group strings and rounding up to obtain the number of the combiner boxes corresponding to the inverters.

Illustratively, the first generation submodule is configured to generate an arrangement of the inverters and the combiner boxes according to the number of the inverters and the number of the combiner boxes corresponding to each inverter by:

for each inverter, dividing the number of the photovoltaic group strings accessed by the inverter by the number of the combiner boxes corresponding to the inverter to obtain a second remainder;

in the combiner boxes corresponding to the inverters, for the second remaining combiner boxes, dividing the number of the photovoltaic string accessed by the inverters by the number of the combiner boxes corresponding to the inverters and rounding up to obtain the number of the photovoltaic string accessed by the combiner boxes;

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 13 is a block diagram illustrating an electronic device 600 according to an example embodiment. As shown in fig. 13, the electronic device 600 may include: a processor 601 and a memory 602. The electronic device 600 may also include one or more of a multimedia component 603, an input/output (I/O) interface 604, and a communications component 605.

The processor 601 is configured to control the overall operation of the electronic device 600, so as to complete all or part of the steps in the above-described photovoltaic power plant arrangement method. The memory 602 is used to store various types of data to support operation at the electronic device 600, such as instructions for any application or method operating on the electronic device 600 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 602 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 603 may include a screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 602 or transmitted through the communication component 605. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 604 provides an interface between the processor 601 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 605 is used for wired or wireless communication between the electronic device 600 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 605 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic Device 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described photovoltaic power station arrangement method.

In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described photovoltaic power plant arrangement method is also provided. For example, the computer readable storage medium may be the memory 602 described above that includes program instructions that are executable by the processor 601 of the electronic device 600 to perform the photovoltaic power plant arrangement method described above.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A photovoltaic power station arrangement method is characterized by comprising the following steps:

2. The method of claim 1, wherein the determining one of the candidate quantities as the configured quantity of the inverter according to the capacity ratio corresponding to each of the candidate quantities and the target capacity ratio comprises:

3. The method of claim 1, wherein determining the capacity fraction corresponding to the candidate number according to the candidate number, the number of photovoltaic arrays arranged in the photovoltaic field area, the power of the photovoltaic module, and the rated power of the inverter comprises:

4. The method of claim 1, wherein determining at least two candidate quantities of inverters based on a target total ac capacity of the inverters and a power rating of the inverters comprises:

5. The method according to any one of claims 1 to 4, wherein the generating the arrangement of the inverters and the combiner boxes according to the arrangement number includes:

6. The method of claim 5, wherein determining a number of each inverter connected to the string of photovoltaic strings based on the total number of strings of photovoltaic strings and the configured number of inverters comprises:

7. The method of claim 5, wherein determining the number of combiner boxes for each inverter based on the number of each inverter coupled to the string of photovoltaic strings and the maximum number of combiner boxes coupled to the string of photovoltaic strings comprises:

8. The method of claim 5, wherein generating the inverter and combiner box arrangement based on the number of inverters and the number of combiner boxes per inverter comprises:

9. A photovoltaic power plant arrangement device, characterized by includes:

10. An electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 8.