CN110826800A

CN110826800A - Photovoltaic power station layout method and device

Info

Publication number: CN110826800A
Application number: CN201911072968.4A
Authority: CN
Inventors: 潘婕; 王�忠; 张俊俊; 余婷婷; 周辉
Original assignee: Hefei Sunshine Amperex Technology Ltd
Current assignee: Hefei Sunshine Amperex Technology Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-02-21
Anticipated expiration: 2039-11-05
Also published as: CN110826800B

Abstract

The invention discloses a photovoltaic power station layout method and device. The photovoltaic power station layout method comprises the following steps: the method comprises the steps of obtaining layout parameter information of each photovoltaic square matrix, generating photovoltaic power station layout information meeting a preset layout according to the layout parameter information, and determining the photovoltaic power station layout information with the lowest electricity consumption cost as final layout information according to cable loss and parallel mismatch loss of the photovoltaic power station layout information. According to the technical scheme of the embodiment of the invention, the technical problems of time consumption, low efficiency and difficulty in determining the optimal layout scheme caused by manual design are solved, the most economical photovoltaic power station layout scheme for power generation is automatically generated according to the design requirement, the layout time is saved, and the layout efficiency and the economic benefit of the photovoltaic power station are improved.

Description

Photovoltaic power station layout method and device

Technical Field

The embodiment of the invention relates to a photovoltaic power generation technology, in particular to a photovoltaic power station layout method and device.

Background

The photovoltaic power station is a photovoltaic power generation system which utilizes solar energy and is composed of electronic elements such as a photovoltaic component, an inverter and the like.

The conventional photovoltaic power station layout method is mainly realized through manual design, for example, field measurement, drawing and cable model selection are performed manually, and the final integrated circuit and equipment layout is determined. The manual layout method is long in time consumption and low in efficiency, and an optimal scheme meeting the layout requirement is difficult to determine.

Disclosure of Invention

The invention provides a photovoltaic power station layout method and device, which aim to automatically generate a layout scheme of a photovoltaic power station according to design requirements, save layout time and improve layout efficiency.

In a first aspect, an embodiment of the present invention provides a photovoltaic power station layout method, where the method includes:

acquiring layout parameter information of each photovoltaic square matrix, wherein the layout parameter information comprises photovoltaic module layout information, equipment configuration information and cable configuration information to be selected;

generating photovoltaic power station layout information meeting a preset layout according to the layout parameter information, wherein the photovoltaic power station layout information comprises configuration equipment arrangement information of configuration equipment in each photovoltaic square matrix and cable laying information of cables laid in the photovoltaic power station, and the configuration equipment at least comprises a combiner box, an inverter and a transformer;

and determining the photovoltaic power station layout information with the lowest power consumption cost as final layout information according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information.

Optionally, the preset layout is the layout with the lowest cable laying cost of the photovoltaic power station;

the generating photovoltaic power station layout information meeting a preset layout according to the layout parameter information comprises:

generating at least one group of equipment arrangement information and corresponding cable laying information according to the layout parameter information;

and determining a group of equipment arrangement information with the lowest cable laying cost and at least one corresponding group of cable laying information as the lowest cost layout information.

Optionally, the determining, according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information, the photovoltaic power station layout information with the lowest power consumption cost as the final layout information includes:

according to a group of configuration equipment arrangement information with the lowest cable laying cost and at least one group of corresponding cable laying information, determining the parallel mismatch loss and the cable loss of the photovoltaic power station corresponding to each piece of lowest cost layout information;

and determining the lowest-cost layout information with the lowest power consumption cost as final layout information according to the parallel mismatch loss and the cable loss corresponding to each piece of lowest-cost layout information.

Optionally, generating, according to the layout parameter information, photovoltaic power plant layout information that meets a preset layout according to the layout parameter information includes:

according to the photovoltaic module arrangement information and the equipment information, arranging and combining equipment in each photovoltaic square matrix respectively to generate at least one group of equipment arrangement information in each photovoltaic square matrix;

according to the configuration information of the cables to be selected and the arrangement information of the at least one group of equipment, cabling the equipment in each photovoltaic square matrix;

and determining configuration equipment arrangement information corresponding to a group of lowest cable cost and at least one group of corresponding first cable laying information by adopting a traversal algorithm, wherein the first cable laying information is cable information laid between the configuration settings.

Optionally, after determining, by using a traversal algorithm, a set of equipment arrangement information corresponding to the lowest cable cost and at least one set of first cabling information, the method further includes:

and generating second cable laying information corresponding to the lowest total investment of at least one group of integrated circuit cables according to the transformer position information, the booster station position information of the photovoltaic power station and the cable configuration information to be selected in the determined configuration equipment configuration information group based on a current collection line wiring principle, wherein the second cable laying information is cable information laid between the transformer and the booster station.

Optionally, the first cabling information includes first cabling information, and the second cabling information includes second cabling information;

after at least one set of second cable laying information corresponding to the lowest total investment of the integrated circuit cables is generated according to the transformer position information, the booster station position information of the photovoltaic power station and the cable configuration information to be selected in the determined set of configuration equipment configuration information based on a current collection line wiring principle, the method further comprises the following steps:

generating a photovoltaic power station layout according to the determined configuration equipment arrangement information, the first cable connection information and the second cable connection information;

if the photovoltaic power station layout is determined not to be modified, taking the photovoltaic power station layout as a final photovoltaic power station layout;

and if the photovoltaic power station layout diagram is determined to be modified, determining modified equipment configuration information, first cable connection information and second cable connection information according to the modified photovoltaic power station layout diagram, and regenerating a group of equipment configuration information, at least one group of first cable laying information and at least one group of second cable laying information according to the modified equipment configuration information, the first cable connection information and the second cable connection information.

Optionally, the photovoltaic power plant layout method further includes:

and generating a first cable inventory according to the first cable laying information and the second cable laying information.

calculating the first cable laying information and the second cable laying information corresponding to the lowest electricity cost according to the determined equipment arrangement information, at least one group of first cable laying information, the second cable laying information, current-per-year data of the combiner box and meteorological data;

and generating a second cable inventory according to the first cable laying information and the second cable laying information corresponding to the lowest electricity cost.

Optionally, calculating the first cable laying information and the second cable laying information corresponding to the lowest electricity cost according to the determined set of equipment arrangement information, at least one set of the first cable laying information, the second cable laying information, the combiner box annual current data and the meteorological data, includes:

determining parallel mismatch loss and cable loss of the photovoltaic power station corresponding to the at least one group of the first cable laying information and the second cable laying information according to the determined group of the equipment arrangement information, the at least one group of the first cable laying information, the second cable laying information, the combiner box annual current data and the meteorological data;

determining annual power generation amount gains of the photovoltaic power stations corresponding to at least one group of the first cable laying information and the second cable laying information according to the parallel mismatch loss and the cable loss;

and determining the first cable laying information and the second cable laying information corresponding to the lowest electricity consumption cost according to the annual electricity generation amount gain and the cable cost corresponding to at least one group of the first cable laying information and the second cable laying information by adopting a traversal algorithm.

In a second aspect, an embodiment of the present invention further provides a photovoltaic power plant layout apparatus, where the apparatus includes:

the photovoltaic array layout parameter information acquisition module is used for acquiring the layout parameter information of each photovoltaic array, wherein the layout parameter information comprises photovoltaic module layout information, equipment configuration information and cable configuration information to be selected;

the layout information generating module is used for generating photovoltaic power station layout information meeting a preset layout according to the layout parameter information, wherein the photovoltaic power station layout information comprises configuration equipment layout information of configuration equipment in each photovoltaic square matrix and cable laying information of cables laid in the photovoltaic power station, and the configuration equipment at least comprises a combiner box, an inverter and a transformer;

and the final layout information determining module is used for determining the photovoltaic power station layout information with the lowest power consumption cost as the final layout information according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information.

The embodiment of the invention provides a photovoltaic power station layout method and a photovoltaic power station layout device, the photovoltaic power station layout method comprises the steps of obtaining layout parameter information of each photovoltaic square matrix, generating photovoltaic power station layout information meeting the preset layout according to the layout parameter information, determining the photovoltaic power station layout information with the lowest electricity consumption cost as final layout information according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information, and according to the layout parameter information of the photovoltaic array, and the arrangement requirement and the cable laying requirement of the equipment, the arrangement mode of each photovoltaic module and the equipment in the photovoltaic square matrix is automatically arranged and designed, and the cable laying condition in the photovoltaic square matrix and among the photovoltaic square matrixes form a complete photovoltaic power station layout scheme, and determining the scheme with the lowest electricity consumption cost as the final photovoltaic power station layout scheme according to the parallel mismatch loss and the cable loss of each photovoltaic power station layout scheme. The technical problems that manual design is time-consuming and inefficient, and an optimal layout scheme is difficult to determine are solved, the most economical photovoltaic power station layout scheme for power generation is automatically generated according to design requirements, the layout time is saved, and the layout efficiency and the economic benefits of the photovoltaic power station are improved.

Drawings

Fig. 1 is a schematic flow chart of a photovoltaic power plant layout method provided in an embodiment of the present invention;

FIG. 2 is a schematic flow chart of another photovoltaic power plant layout method provided in an embodiment of the present invention;

FIG. 3 is a schematic flow chart of another photovoltaic power plant layout method provided in an embodiment of the present invention;

FIG. 4 is a schematic flow chart of another photovoltaic power plant layout method provided in embodiments of the present invention;

FIG. 5 is a schematic flow chart of another photovoltaic power plant layout method provided in embodiments of the present invention;

fig. 6 is a schematic structural diagram of a photovoltaic power plant layout apparatus provided in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an apparatus provided in an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic flow chart of a photovoltaic power plant layout method provided in an embodiment of the present invention. The present embodiment is applicable to the case of automatically designing and laying out a photovoltaic power station, and the method may be executed by the photovoltaic power station layout apparatus provided in the embodiment of the present invention, where the apparatus may be implemented in a software and/or hardware manner, and the apparatus may be configured in an electronic device, such as a server or a terminal device, where a typical terminal device includes a mobile terminal, specifically includes a computer and the like. As shown in fig. 1, the photovoltaic power plant layout method may specifically include the following steps:

and S110, acquiring layout parameter information of each photovoltaic square matrix. The layout parameter information comprises photovoltaic module layout information, equipment configuration information and cable configuration information to be selected.

Specifically, the photovoltaic array can be a plurality of arrays including photovoltaic modules such as photovoltaic cell panels in a photovoltaic power plant area, the photovoltaic module arrangement information can include the arrangement condition of the photovoltaic modules in the photovoltaic array, each group of photovoltaic modules is provided with corresponding equipment, the equipment information can be provided with specific types and the number of the equipment, and the cable configuration information to be selected can include information such as materials, cost and models of cables applicable to the photovoltaic power plant area.

And S120, generating photovoltaic power station layout information meeting the preset layout according to the layout parameter information. The photovoltaic power station layout information comprises configuration equipment arrangement information of configuration equipment in each photovoltaic square matrix and cable laying information of cables laid in the photovoltaic power station, and the configuration equipment at least comprises a junction box, an inverter and a transformer.

Specifically, the preset layout may be a layout of equipment arrangement and cable laying conditions that satisfy the type, application scenario, and design and layout requirements of the photovoltaic power station, wherein the type of the photovoltaic power station may be a string-type photovoltaic power station or a centralized photovoltaic power station, the application scenario may be a mountain land power station, a water surface power station, a floating power station, a flat land power station, or the like, the design and layout requirements, for example, the positions and cable connection modes of equipment arrangement in each photovoltaic matrix, and the requirements of cable connection modes between a transformer in each photovoltaic matrix and a booster station of the photovoltaic power station, or the design and layout requirements of construction investment and power generation amount of the photovoltaic power station. The device arrangement information may include the arrangement mode of each photovoltaic square matrix, and the arrangement positions of the photovoltaic modules and the devices equipped in each photovoltaic square matrix. The cable laying information may include information such as a cable laying path, a laying mode, a material, a cost, a model number and the like of a direct current cable, an alternating current cable, a high voltage cable and the like which connect the photovoltaic array and equipment equipped therewith, wherein the cable laying mode includes direct burial or a bridge frame and the like, the cable material may be aluminum alloy or copper and the like, and the cable cost may be information such as cable unit price and construction unit price of laying the cable. The photovoltaic array is at least provided with a combiner box, an inverter and a transformer which are connected with each photovoltaic assembly.

S130, according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information, determining the photovoltaic power station layout information with the lowest power consumption cost as final layout information.

Specifically, the parallel mismatch loss may be a loss caused by mismatch between different photovoltaic modules in the photovoltaic power plant to the output power. The cable loss can be loss caused by a cable laid in the photovoltaic power station in the process of transmitting electric energy. The electricity consumption Cost (leveled Cost of Energy, LCOE) can be a Cost evaluation index of the photovoltaic power station, the construction, operation and maintenance and power generation Cost of the photovoltaic power station can be reflected, and the lower the electricity consumption Cost is, the better the overall economic benefit of the photovoltaic power station is. The distribution information of the equipment equipped in each photovoltaic square matrix and the cable laying information of the laid cables in the photovoltaic power stations can be used for determining the cable loss and the parallel mismatch loss corresponding to the distribution information of each photovoltaic power station, the power consumption cost corresponding to the distribution information of each photovoltaic power station is determined according to the cable loss and the parallel mismatch loss, and the photovoltaic power station distribution information with the lowest power consumption cost is selected as the final distribution information.

Illustratively, the working principle of the photovoltaic power station layout method is as follows: can select the photovoltaic power plant by the designer to be group string formula inverter power station or centralized inverter power station, select to use the power station scene to be mountain region power station, the surface of water power station, float power station or level land power station etc., input photovoltaic square matrix arrangement diagram in the photovoltaic factory district, all photovoltaic square matrices have all been divided in this figure, photovoltaic module arranges and has been accomplished in the photovoltaic square matrix, the information table is arranged to the equipment of input photovoltaic square matrix, including the dc-to-ac converter that every square matrix was equipped with in this table, transformer and collection flow box number, and information such as collection flow box branch number, and input cable laying information, including the cable material for aluminum alloy cable or copper cable, the cable adopts direct-burring or crane span structure, cable unit price, cable construction unit price, information such as crane span structure. Accordingly, the photovoltaic component arrangement condition of the photovoltaic power station to be designed and distributed, the number of the combiner boxes, the inverters, the transformers and the like arranged on each group of photovoltaic components, the branch number of the combiner boxes, the arrangement parameter information of the materials, the cost, the models and the like of the cables to be selected and the like can be obtained, the photovoltaic power station can be automatically arranged and designed according to the arrangement parameter information, the preset equipment arrangement conditions of the type, the application scene, the design and the arrangement requirements of the photovoltaic power station and the cable laying conditions, and the equipment arrangement information meeting the preset arrangement conditions can be generated, for example, the arrangement mode and the relative position relation of the equipment such as the inverters, the combiner boxes, the transformers and the like can be determined by combining the circuit structure type of the string type or the centralized type of the photovoltaic power station, the branch number of the combiner boxes in each photovoltaic array and the application scenes such as mountain power stations, and generating cable laying information meeting the preset laying conditions to form a complete layout scheme of various photovoltaic power stations. And respectively calculating the parallel mismatch loss of the photovoltaic components in each photovoltaic power station layout scheme and the cable loss of the laid cable, determining the power consumption cost corresponding to each layout scheme according to the cable loss and the parallel mismatch loss, and selecting the layout scheme with the lowest power consumption cost as the final layout scheme.

The photovoltaic power station layout method comprises the steps of obtaining layout parameter information of each photovoltaic square matrix, generating photovoltaic power station layout information meeting the preset layout according to the layout parameter information, determining the photovoltaic power station layout information with the lowest electricity consumption cost as final layout information according to cable loss and parallel mismatch loss of the photovoltaic power station layout information, automatically laying and designing the arrangement modes of each photovoltaic module and equipment in the photovoltaic square matrix and the cable laying conditions in the photovoltaic square matrix and among the photovoltaic square matrices according to the layout parameter information of the photovoltaic arrays, the arrangement requirements of the equipment and the cable laying requirements, forming a complete photovoltaic power station layout scheme, and determining the scheme with the lowest electricity consumption cost as the final photovoltaic power station layout scheme according to the parallel mismatch loss and the cable loss of each photovoltaic power station layout scheme. The technical problems that manual design is time-consuming and inefficient, and an optimal layout scheme is difficult to determine are solved, the most economical photovoltaic power station layout scheme for power generation is automatically generated according to design requirements, the layout time is saved, and the layout efficiency and the economic benefits of the photovoltaic power station are improved.

Fig. 2 is a schematic flow chart of another photovoltaic power plant layout method provided in the embodiment of the present invention. On the basis of the technical scheme, the method for determining the photovoltaic power station layout information and the final layout information is further optimized. Correspondingly, as shown in fig. 2, the photovoltaic power station layout method specifically includes:

and S111, obtaining layout parameter information of each photovoltaic square matrix. The layout parameter information comprises photovoltaic module layout information, equipment configuration information and cable configuration information to be selected.

And S112, generating at least one group of equipment arrangement information and corresponding cable laying information according to the layout parameter information.

Specifically, at least one equipment arrangement scheme may be generated according to the photovoltaic module arrangement information, the equipment information, and the candidate cable configuration information, and at least one cable laying scheme may be matched for each equipment arrangement scheme, where each cable laying scheme may be a combination of different cable laying paths, laying modes, materials, costs, models, and the like.

And S113, determining a group of configuration equipment arrangement information with the lowest cable laying cost and at least one corresponding group of cable laying information as the lowest cost layout information.

For example, cabling costs of at least one cabling scheme corresponding to each equipment arrangement scheme may be calculated, respectively, and the cabling costs may include cabling costs, construction costs, and the like, and a group of equipment arrangement schemes corresponding to the lowest cabling costs and at least one group of cabling schemes corresponding to the lowest cabling costs may be selected as the lowest cost arrangement scheme. Therefore, all possible combinations of equipment configuration information and cable laying information can be automatically generated, and the photovoltaic power station layout scheme meeting the preset layout requirement and the lowest cable cost can be obtained through calculation.

And S114, determining the parallel mismatch loss and the cable loss of the photovoltaic power station corresponding to each piece of lowest-cost layout information according to the set of equipment arrangement information with the lowest cable laying cost and the corresponding at least one set of cable laying information.

Specifically, the parallel mismatch loss and the cable loss of the photovoltaic power station corresponding to each cable laying scheme can be respectively calculated according to the determined equipment arrangement scheme.

And S115, determining the lowest-cost layout information with the lowest power consumption cost as the final layout information according to the parallel mismatch loss and the cable loss corresponding to each piece of lowest-cost layout information.

Illustratively, at least one group of lowest cost layout information can be obtained by a group of equipment arrangement schemes and at least one group of corresponding cable laying schemes, the power generation amount of the group of lowest cost layout information can be determined according to the parallel mismatch loss and the cable loss of each group of lowest cost layout information, the cable laying cost is determined according to the corresponding cable laying scheme, the power consumption cost of each group of lowest cost layout information is determined according to the power generation amount and the cable laying cost of each group of lowest cost layout information, and the lowest cost layout scheme with the lowest power consumption cost is taken as the final layout scheme. Therefore, the parallel mismatch loss, the cable laying cost and the power consumption cost of the photovoltaic power station can be comprehensively considered, the scheme with the lowest power consumption cost is selected from the layout schemes with the lowest cable laying cost to serve as the final photovoltaic power station layout scheme, the parallel mismatch loss and the cable loss of the photovoltaic power station are reduced, the power consumption cost of the photovoltaic power station is reduced, and the most economical power generation layout scheme is obtained. Fig. 3 is a schematic flow chart of another photovoltaic power plant layout method provided in the embodiment of the present invention. On the basis of the technical scheme, the method for generating the equipment arrangement information meeting the preset arrangement conditions of the equipment equipped in each photovoltaic square matrix and the cable laying information meeting the preset laying conditions of the laid cables in the photovoltaic power station according to the layout parameter information is further optimized. Correspondingly, as shown in fig. 3, the photovoltaic power station layout method specifically includes:

s210, obtaining layout parameter information of each photovoltaic square matrix.

The layout parameter information comprises photovoltaic module layout information, equipment configuration information and cable configuration information to be selected.

S220, according to the photovoltaic module arrangement information and the equipment information, equipment in each photovoltaic square matrix is respectively arranged and combined to generate at least one group of equipment arrangement information in each photovoltaic square matrix.

For example, the configuration device arrangement information may be position information of configuration device arrangement, and the configuration modes of the configuration devices of each group of photovoltaic modules in the photovoltaic array, which may exist, may be arranged and combined according to the arrangement conditions of the photovoltaic modules and the types and the number of the configuration devices to generate at least one group of configuration device arrangement information, which may include information of different arrangement position combinations of the combiner box, the inverter, and the box-type transformer, for example.

And S230, according to the configuration information of the cables to be selected and the arrangement information of at least one group of equipment, cabling the equipment in each photovoltaic square matrix.

Illustratively, the photovoltaic module and cables connected between the equipment can be laid according to the arrangement positions of the equipment, and each group of equipment arrangement information can correspond to multiple cable laying situations, for example, the equipment arrangement information can include cable laying positions and cable laying lengths between every two equipment arrangements, cables with different cable configuration information to be selected can be selected for each cable laying situation, and cables with different materials, costs and models can be selected for each cable laying situation.

And S240, determining configuration equipment arrangement information corresponding to the lowest cable cost and at least one group of corresponding first cable laying information by adopting a traversal algorithm.

The first cable laying information is cable information laid between equipment.

Specifically, the cable cost of the cable laying condition corresponding to each set of equipment configuration information may be determined through a traversal algorithm, and a set of equipment configuration information with the lowest cost and at least one set of corresponding first cable laying information may be determined. For example, each set of configuration device configuration information may correspond to a plurality of cable laying conditions, each cable laying condition may select cables of different materials, costs, and models, thereby forming a plurality of permutation and combination of configuration device configuration, cable connection conditions, and cable parameters, traversing a plurality of combinations by using a traversal algorithm, calculating a cable cost corresponding to each combination, for example, cable unit price and construction unit price, selecting at least one combination with the lowest cable cost, using the configuration device configuration information in the combination as configuration device configuration information of a photovoltaic power station layout, and using at least one set of cable laying information corresponding to the device configuration information as first cable laying information, where the first cable laying information may include cable information between every two configuration devices, such as a combiner box, an inverter, and a transformer. Therefore, various possible cable laying conditions can be automatically traversed, the lowest cost of the equipment is determined, the most economical cable laying scheme is achieved, and the layout cost of the photovoltaic power station is saved.

Optionally, on the basis of the foregoing technical solution, after S240, the method may further include:

and S250, generating second cable laying information corresponding to the lowest total investment of at least one group of integrated circuit cables according to transformer position information, booster station position information of the photovoltaic power station and cable configuration information to be selected in the determined group of equipment configuration information based on a current collection line wiring principle.

And the second cable laying information is cable information laid between the transformer and the booster station.

Specifically, cables between transformers equipped for each photovoltaic module and a total booster station can be laid based on a collector line wiring principle according to the determined position information of the transformers equipped for each group of photovoltaic modules in the photovoltaic square matrix, the position information of the total booster station in the photovoltaic power station, and the configuration information of cables to be selected in the above technical scheme, wherein the collector line wiring principle can include corresponding voltage drop requirements between the transformers and the total booster station, the cable total investment cost corresponding to the cable laying condition of the integrated circuit between the transformers and the total booster station is traversed through a traversal algorithm, and the cable laying information with the lowest total investment of at least one group of integrated circuit cables is determined as second cable laying information, wherein the second cable laying information is cable information between the transformers and the total booster station in the photovoltaic square matrix. Therefore, various possible cable laying conditions can be automatically traversed, the lowest cost and the most economical cable laying scheme of each equipment and the total booster station are determined, and the layout cost of the photovoltaic power station is further saved.

Optionally, on the basis of the foregoing technical solution, the first cabling information includes first cable connection information, and the second cabling information includes second cable connection information, and after S250, the method may further include:

and S260, generating a photovoltaic power station layout according to the determined set of equipment configuration information, the first cable connection information and the second cable connection information.

Specifically, the first cable connection information may include cable connection information between each group of photovoltaic modules in the photovoltaic square matrix and the equipment thereof, the second cable connection information may include cable connection information between a transformer equipped for each group of photovoltaic modules in the photovoltaic square matrix and a total booster station of the photovoltaic power station, and a complete photovoltaic power station layout diagram may be generated according to the equipment configuration information, the first cable connection information, the second cable connection information, and the photovoltaic module configuration information in the photovoltaic square matrix that have been determined in the above technical solution. The photovoltaic power plant layout can include, for example, photovoltaic modules in a photovoltaic square matrix and combiner boxes, inverters and transformers equipped with the photovoltaic modules, and arrangement positions and cable connection information among the total booster stations. The configuration equipment arrangement information and the cable laying information with the lowest total investment cost determined after traversing various cable laying conditions are applied to the final photovoltaic power station layout, the photovoltaic power station layout scheme is optimized, and the layout cost of the photovoltaic power station is saved.

And S270, determining whether the photovoltaic power station layout is modified.

If the photovoltaic power station layout is determined to be modified, executing S280; if it is determined that the photovoltaic power plant layout diagram is not modified, S290 is executed.

After the photovoltaic power station layout diagram is generated, as designers may modify and optimize the equipment position and the cable laying in the photovoltaic power station layout diagram according to the actual situation and the design experience of a plant area of the photovoltaic power station, the current photovoltaic power station layout diagram can be automatically acquired at set time intervals after the photovoltaic power station layout diagram is generated, and whether the current photovoltaic power station layout diagram is modified or not is judged.

S280, determining modified equipment configuration information, first cable connection information and second cable connection information according to the modified photovoltaic power station layout diagram, and regenerating a group of equipment configuration information, at least one group of first cable laying information and second cable laying information according to the modified equipment configuration information, the first cable connection information and the second cable connection information.

For example, whether the equipment arrangement information, the first cable connection information, and the second cable connection information are modified may be determined according to the modified photovoltaic power plant layout, and if the equipment arrangement information is modified, at least one set of the first cable laying information and the second cable laying information may be re-determined according to the modified equipment arrangement information with reference to S220-S260, and an updated photovoltaic power plant layout may be generated. If the first cable connection information is modified, referring to S230-S260, at least one set of the first cable laying information and the second cable laying information is determined again according to the modified first cable connection information, and an updated photovoltaic power plant layout diagram is generated. If the second cable connection information is modified, referring to S250-S260, at least one set of the first cable laying information and the second cable laying information is determined again according to the modified second cable connection information, and an updated photovoltaic power plant layout diagram is generated.

And S290, taking the photovoltaic power station layout as a final photovoltaic power station layout.

And if the current photovoltaic power station layout is determined not to be modified, taking the photovoltaic power station layout as a final photovoltaic power station layout, so that the layout operation can be matched with manual adjustment, the optimized photovoltaic power station layout is updated in real time according to the recommended scheme of a designer, the current photovoltaic power station layout is ensured to be the optimal and most economic layout scheme, and the optimal and most economic layout scheme is provided for the designer to use.

S300, according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information, determining the photovoltaic power station layout information with the lowest power consumption cost as final layout information. Fig. 4 is a schematic flow chart of another photovoltaic power plant layout method provided in the embodiment of the present invention. On the basis of the technical scheme, the photovoltaic power station layout method further comprises a generation method of a first cable list and a second cable list. Correspondingly, as shown in fig. 4, the photovoltaic power station layout method specifically includes:

s310, obtaining layout parameter information of each photovoltaic square matrix.

And S320, respectively arranging and combining the equipment in each photovoltaic square matrix according to the photovoltaic module arrangement information and the equipment information to generate at least one group of equipment arrangement information in each photovoltaic square matrix.

S330, according to the configuration information of the cables to be selected and the arrangement information of at least one group of equipment, cabling is carried out on the equipment in each photovoltaic square matrix.

S340, determining configuration equipment arrangement information corresponding to the lowest cable cost and at least one group of corresponding first cable laying information by adopting a traversal algorithm.

And S350, generating second cable laying information corresponding to the lowest total investment of at least one group of integrated circuit cables according to transformer position information, booster station position information of the photovoltaic power station and cable configuration information to be selected in the determined group of equipment configuration information based on a current collection line wiring principle.

Optionally, on the basis of the above technical solution, the photovoltaic power plant layout method further includes:

and S360, generating a first cable list according to the first cable laying information and the second cable laying information.

For example, the first cable inventory may be a cable inventory with the lowest total cable investment cost, and the first cable inventory including the laying position, the laying mode, the length, the material, the cost and the model of each section of cable in the photovoltaic power station may be generated according to the first cable laying information and the second cable laying information, so that the determination of the cable laying information in the photovoltaic power station is facilitated.

and S370, calculating first cable laying information and second cable laying information corresponding to the lowest electricity consumption cost according to the determined set of equipment arrangement information, at least one set of first cable laying information, second cable laying information, current-per-year data of the combiner box and meteorological data.

Specifically, photovoltaic modules in each photovoltaic square matrix can be orderly connected and converged by the convergence box, annual current data of the convergence box can be annual output current data of each photovoltaic square matrix, meteorological data can be meteorological data of a predicted photovoltaic power station in one year, and the meteorological data comprise illumination intensity data, and the illumination intensity data can influence the power generation amount of the photovoltaic power station. The method can determine the first cable laying information and the second cable laying information with the lowest electricity consumption cost according to the determined equipment configuration information, the at least one group of first cable laying information, the second cable laying information, the header box annual current data and the meteorological data, and uses the first cable laying information and the second cable laying information as the final cable laying information in the photovoltaic power station, so that the construction, operation and maintenance and power generation costs of the photovoltaic power station are reduced to the maximum extent, and the economic benefit of power generation of the photovoltaic power station is improved.

And S380, generating a second cable list according to the first cable laying information and the second cable laying information corresponding to the lowest electricity consumption cost.

Specifically, the second cable list can be the cable list with the lowest electricity consumption cost and the best economic benefit of the photovoltaic power station, and the second cable list including the laying position, the laying mode, the length, the material, the cost and the model of each section of cable in the photovoltaic power station can be generated according to the first cable laying information and the second cable laying information with the lowest electricity consumption cost.

Fig. 5 is a schematic flow chart of another photovoltaic power plant layout method provided in the embodiment of the present invention. In this embodiment, on the basis of the above technical solution, the determination method of the first cable laying information and the second cable laying information corresponding to the lowest electricity cost is further optimized. Correspondingly, as shown in fig. 5, the photovoltaic power station layout method specifically includes:

s401, obtaining layout parameter information of each photovoltaic square matrix.

S402, according to the photovoltaic module arrangement information and the equipment information, equipment in each photovoltaic square matrix is arranged and combined respectively, and at least one group of equipment arrangement information in each photovoltaic square matrix is generated.

And S403, according to the configuration information of the cables to be selected and the arrangement information of at least one group of equipment, cabling the equipment in each photovoltaic square matrix.

S404, determining configuration equipment arrangement information corresponding to the lowest cable cost and at least one group of corresponding first cable laying information by adopting a traversal algorithm.

And S405, generating second cable laying information corresponding to the lowest total investment of at least one group of integrated circuit cables according to transformer position information, booster station position information of the photovoltaic power station and cable configuration information to be selected in the determined group of equipment configuration information based on a current collection line wiring principle.

And S406, generating a first cable list according to the first cable laying information and the second cable laying information.

S407, according to the determined group of equipment arrangement information, the at least one group of first cable laying information, the second cable laying information, the combiner box annual current data and the meteorological data, determining the parallel mismatch loss and the cable loss of the photovoltaic power station corresponding to the at least one group of first cable laying information and the second cable laying information.

For example, the power generation efficiency of photovoltaic components in a photovoltaic square matrix can be determined according to meteorological data within one year, the output voltages, the output currents and the output powers of an inverter, an inverter and a combiner box are determined by combining parameters such as rated power, rated voltage and rated current of equipment such as an inverter, a combiner box and a transformer which are equipped with the photovoltaic components and annual current data of the combiner box, and the cable loss of a photovoltaic power station corresponding to each set of cable laying information and the parallel mismatch loss between the photovoltaic components are determined by combining at least one set of first cable laying information and second cable laying information.

And S408, determining annual power generation amount gain of the photovoltaic power station corresponding to at least one group of the first cable laying information and the second cable laying information according to the parallel mismatch loss and the cable loss.

For example, the annual energy production gain corresponding to each set of cabling information in the combination of at least one set of the first cabling information and the second cabling information may be determined according to the parallel mismatch loss and the cable loss corresponding to each set of cabling information. The annual energy production of the photovoltaic power station can be determined according to the output voltage, the output current, the parallel mismatch loss and the cable loss of the photovoltaic power station, and the annual energy production gain of the photovoltaic power station is estimated.

And S409, determining first cable laying information and second cable laying information corresponding to the lowest electricity consumption cost according to the annual energy production gain and the cable cost corresponding to at least one group of first cable laying information and second cable laying information by adopting a traversal algorithm.

For example, the cable cost may be determined according to a cable unit price of each cable in a combination of at least one set of the first cable laying information and the second cable laying information, a construction unit price of the laid cable, and the like, the electricity consumption cost may be determined according to an annual energy production gain and a cable cost, specifically, the electricity consumption cost may be a ratio of the cable cost to the annual energy production gain, a corresponding electricity consumption cost of the set may be determined according to the annual energy production gain and the cable cost of each cable in a combination of at least one set of the first cable laying information and the second cable laying information, and the first cable laying information and the second cable laying information corresponding to the lowest electricity consumption cost are determined by traversing the electricity consumption cost of each set of cables through a traversal algorithm.

And S410, generating a second cable list according to the first cable laying information and the second cable laying information corresponding to the lowest electricity consumption cost.

Fig. 6 is a schematic structural diagram of a photovoltaic power plant layout apparatus provided in an embodiment of the present invention. The embodiment can be applied to the situation of automatically designing and distributing the photovoltaic power station. As shown in fig. 6, the photovoltaic power plant layout apparatus includes:

a layout parameter information obtaining module 510, configured to obtain layout parameter information of each photovoltaic square matrix, where the layout parameter information includes photovoltaic module layout information, equipment configuration information, and cable configuration information to be selected;

and a layout information generating module 520, configured to generate, according to the layout parameter information, the photovoltaic power station layout information meeting a preset layout. The photovoltaic power station layout information comprises configuration equipment arrangement information of configuration equipment in each photovoltaic square matrix and cable laying information of cables laid in the photovoltaic power station, and the configuration equipment at least comprises a junction box, an inverter and a transformer.

And a final layout information determining module 530, configured to determine, according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information, the photovoltaic power station layout information with the lowest power consumption cost as the final layout information.

Optionally, on the basis of the technical scheme, the preset layout is the layout with the lowest cable laying cost of the photovoltaic power station;

the layout information generating module 520 is further configured to generate, according to the layout parameter information, the photovoltaic power station layout information that meets the preset layout, including: generating at least one group of equipment arrangement information and corresponding cable laying information according to the layout parameter information; and determining a group of equipment arrangement information with the lowest cable laying cost and at least one corresponding group of cable laying information as the lowest cost layout information.

Optionally, on the basis of the foregoing technical solution, the final layout information determining module 530 is further configured to determine, according to a group of configuration device configuration information with the lowest cable laying cost and at least one group of corresponding cable laying information, a parallel mismatch loss and a cable loss of the photovoltaic power station corresponding to each piece of lowest-cost layout information; and determining the lowest-cost layout information with the lowest power consumption cost as final layout information according to the parallel mismatch loss and the cable loss corresponding to each piece of lowest-cost layout information.

Optionally, on the basis of the foregoing technical solution, the layout information generating module 520 is further configured to respectively arrange and combine the equipment in each photovoltaic square matrix according to the photovoltaic module arrangement information and the equipment information, and generate at least one group of equipment arrangement information in each photovoltaic square matrix; according to the configuration information of the cables to be selected and the configuration information of at least one group of equipment, cabling the equipment in each photovoltaic square matrix; and determining configuration equipment arrangement information corresponding to the lowest cable cost in one group and at least one group of corresponding first cable laying information by adopting a traversal algorithm, wherein the first cable laying information is cable information laid between configuration settings.

Optionally, on the basis of the above technical solution, the photovoltaic power station layout apparatus further includes a second cable laying information generating module, configured to generate, based on a current collecting line wiring principle, second cable laying information corresponding to the lowest total investment of at least one set of integrated circuit cables according to transformer position information, booster station position information of the photovoltaic power station, and cable configuration information to be selected in the set of configuration device configuration information, where the second cable laying information is cable information laid between the transformer and the booster station.

Optionally, on the basis of the foregoing technical solution, the first cable laying information includes first cable connection information, and the second cable laying information includes second cable connection information;

the photovoltaic power station layout device also comprises a photovoltaic power station layout optimization module used for generating a photovoltaic power station layout according to the determined configuration equipment arrangement information, the first cable connection information and the second cable connection information; if the photovoltaic power station layout is determined not to be modified, taking the photovoltaic power station layout as a final photovoltaic power station layout; and if the photovoltaic power station layout diagram is determined to be modified, determining modified equipment configuration information, first cable connection information and second cable connection information according to the modified photovoltaic power station layout diagram, and regenerating a group of equipment configuration information, at least one group of first cable laying information and second cable laying information according to the modified equipment configuration information, the first cable connection information and the second cable connection information.

Optionally, on the basis of the above technical solution, the photovoltaic power plant layout apparatus further includes:

and the first cable registration generating module is used for generating a first cable registration according to the first cable laying information and the second cable laying information.

Optionally, on the basis of the foregoing technical solution, the final layout information determining module 530 is further configured to calculate, according to the determined set of equipment arrangement information, at least one set of first cable laying information, second cable laying information, current data of the combiner box year and meteorological data, first cable laying information and second cable laying information corresponding to the lowest electricity consumption cost; and generating a second cable inventory according to the first cable laying information and the second cable laying information corresponding to the lowest electricity consumption cost.

Optionally, on the basis of the foregoing technical solution, the final layout information determining module 530 is further configured to determine, according to the determined set of equipment arrangement information, the at least one set of first cable laying information, the second cable laying information, the combiner box annual current data, and the meteorological data, a parallel mismatch loss and a cable loss of the photovoltaic power station corresponding to the at least one set of first cable laying information and the second cable laying information; determining annual power generation amount gains of the photovoltaic power station corresponding to at least one group of first cable laying information and second cable laying information according to the parallel mismatch loss and the cable loss; and determining the first cable laying information and the second cable laying information corresponding to the lowest electricity consumption cost by adopting a traversal algorithm according to the annual energy production gain and the cable cost corresponding to at least one group of the first cable laying information and the second cable laying information.

The photovoltaic power station layout device provided by the embodiment of the invention can execute the photovoltaic power station layout method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

Fig. 7 is a schematic structural diagram of an apparatus provided in an embodiment of the present invention. FIG. 7 illustrates a block diagram of an exemplary device 412 suitable for use in implementing embodiments of the present invention. The device 412 shown in fig. 7 is only an example and should not impose any limitation on the functionality or scope of use of embodiments of the present invention.

As shown in fig. 7, the device 412 is in the form of a general purpose device. The components of device 412 may include, but are not limited to: one or more processors 416, a storage device 428, and a bus 418 that couples the various system components including the storage device 428 and the processors 416.

Bus 418 represents one or more of any of several types of bus structures, including a memory device bus or memory device controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

Device 412 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by device 412 and includes both volatile and nonvolatile media, removable and non-removable media.

Storage 428 may include computer system readable media in the form of volatile Memory, such as Random Access Memory (RAM) 430 and/or cache Memory 432. The device 412 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 434 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 7, commonly referred to as a "hard drive"). Although not shown in FIG. 7, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk such as a Compact disk Read-Only Memory (CD-ROM), Digital Video disk Read-Only Memory (DVD-ROM) or other optical media may be provided. In these cases, each drive may be connected to bus 418 by one or more data media interfaces. Storage 428 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.

A program/utility 440 having a set (at least one) of program modules 442 may be stored, for instance, in storage 428, such program modules 442 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. The program modules 442 generally perform the functions and/or methodologies of the described embodiments of the invention.

The device 412 may also communicate with one or more external devices 414 (e.g., keyboard, pointing terminal, display 424, etc.), with one or more terminals that enable a user to interact with the device 412, and/or with any terminals (e.g., network card, modem, etc.) that enable the device 412 to communicate with one or more other computing terminals. Such communication may occur via input/output (I/O) interfaces 422. Further, the device 412 may also communicate with one or more networks (e.g., a Local Area Network (LAN), Wide Area Network (WAN), and/or a public Network, such as the internet) via the Network adapter 420. As shown in FIG. 7, network adapter 420 communicates with the other modules of device 412 via bus 418. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the device 412, including but not limited to: microcode, end drives, Redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.

The processor 416 executes programs stored in the storage device 428 to perform various functional applications and data processing, for example, implement a photovoltaic power plant layout method provided by the embodiment of the present invention, the method includes:

and generating photovoltaic power station layout information meeting the preset layout according to the layout parameter information. The photovoltaic power station layout information comprises configuration equipment arrangement information of configuration equipment in each photovoltaic square matrix and cable laying information of cables laid in the photovoltaic power station, and the configuration equipment at least comprises a combiner box, an inverter and a transformer;

and determining the photovoltaic power station layout information with the lowest electricity consumption cost as final layout information according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information. An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a photovoltaic power plant layout method with a screen touch effect, where the method includes:

and determining the photovoltaic power station layout information with the lowest electricity consumption cost as final layout information according to the cable loss and the parallel mismatch loss of the photovoltaic power station layout information. Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A photovoltaic power plant layout method is characterized by comprising the following steps:

2. The photovoltaic power plant layout method of claim 1 wherein the predetermined layout is the lowest cost photovoltaic power plant cabling layout;

3. The photovoltaic power plant layout method of claim 2 wherein determining the photovoltaic power plant layout information with the lowest electricity consumption cost as the final layout information based on the cable loss and the parallel mismatch loss of the photovoltaic power plant layout information comprises:

4. The photovoltaic power plant layout method of claim 1 wherein generating photovoltaic power plant layout information that satisfies a preset layout based on the layout parameter information comprises:

5. The method of claim 4, wherein after determining the configuration device arrangement information corresponding to the lowest cable cost and the corresponding at least one first cable run information using the traversal algorithm, the method further comprises:

6. The photovoltaic power plant layout method of claim 5 wherein the first cabling information comprises first cabling information and the second cabling information comprises second cabling information;

7. The photovoltaic power plant layout method of claim 5 or 6 further comprising:

8. The photovoltaic power plant layout method of claim 5 or 6, wherein the determining the photovoltaic power plant layout information with the lowest electricity consumption cost as the final layout information according to the cable loss and the parallel mismatch loss of the photovoltaic power plant layout information comprises:

9. The method of claim 8, wherein the determining the photovoltaic power plant layout information with the lowest electricity consumption cost as the final layout information based on the cable loss and the parallel mismatch loss of the photovoltaic power plant layout information comprises:

10. A photovoltaic power plant layout device, characterized by comprising: