Community photovoltaic system planning method and system based on electrification rate improvement

Abstract

The invention provides a community photovoltaic system planning method based on electrification rate improvement, and the method comprises the steps: obtaining the total building area and the energy consumption per unit building area of a target community, and the power generation per unit photovoltaic area of a photovoltaic system; obtaining a photovoltaic comprehensive area ratio of the target community according to the energy consumption per unit building area and the power generation per unit photovoltaic area; based on the photovoltaic comprehensive area ratio and the total building area, deriving a photovoltaic laying total area of the target community; and generating a community photovoltaic system planning scheme of the target community according to the total photovoltaic laying area. The invention also provides a community photovoltaic system planning system based on electrification rate improvement, and a data processing device for realizing community photovoltaic system planning based on electrification rate improvement.

Description

Technical Field

[0001] The invention belongs to the technical field of regional energy and relates to a method for community energy planning. Background Art

[0002] Under the background of dual carbon, my country's energy system is gradually shifting from fossil energy to renewable energy. Compared with single buildings, renewable energy within the community can be interconnected and shared, and its feasibility of replacing traditional energy is higher, which is conducive to achieving zero-carbon goals at the community level. The coupled operation of community multi-energy systems is becoming more and more important, including the optimization analysis of energy system selection. In high-density areas, centralized heating and cooling systems, combined with community renewable energy, are more advantageous than split air-conditioning systems. In terms of cooking and domestic hot water, although natural gas is widely used at present, it will also drop significantly under strict policy requirements and high proportion of renewable energy applications. In terms of community energy system operation matching, some studies take energy consumption, carbon emissions, and economy as the ultimate goals. Based on the community energy consumption, renewable energy such as photovoltaics, wind power, and heat pumps are used for matching analysis. This method of power generation is mostly self-generated and self-used, and the surplus power is connected to the grid. Due to the limited carrying capacity of the power grid, some studies have also taken energy storage systems into consideration, so that community renewable energy power generation can be stored and provide electricity to the community when the power consumption is high. However, most studies use simulation methods to optimize it, which is difficult to apply in the planning stage.

[0003] my country has also conducted some research on community energy planning. Luo Shuxiang and others divided low-carbon regional energy planning into five aspects, among which renewable energy assessment was included in the planning scheme as an important component. In order to reduce energy consumption in the operation stage of buildings, Long Weiding and others proposed ideas and methods for urban energy planning under the background of carbon neutrality. They believed that making full use of renewable energy and increasing its penetration rate in regional power grids are the key to achieving carbon neutrality. Guo Chuangxin and others discussed energy system planning from the perspective of the "source-grid-load" integrated system, and determined the energy hub planning of high-penetration distributed energy and supporting energy storage. However, they are all qualitative studies, lacking quantitative research on renewable energy replacing traditional energy forms in the planning stage. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a community photovoltaic system planning method based on improving the electrification rate, including: obtaining the total building area and energy consumption per unit building area of ​​the target community, and the power generation per unit photovoltaic area of ​​the photovoltaic system; obtaining the photovoltaic comprehensive area ratio of the target community based on the energy consumption per unit building area and the power generation per unit photovoltaic area; deriving the total photovoltaic paving area of ​​the target community based on the photovoltaic comprehensive area ratio and the total building area; and generating a community photovoltaic system planning scheme for the target community based on the total photovoltaic paving area.

[0005] The community photovoltaic system planning method of the present invention, wherein the community photovoltaic comprehensive area ratio E ib is the energy consumption per unit building area, α is the energy substitution coefficient, E pv is the power generation per unit photovoltaic area; 0≤α≤1, when the community photovoltaic system planning scheme for the target community is full electrification, α=1; E pv =I·C, I is the annual solar radiation per unit area in the target community, and C is the average photoelectric conversion efficiency of the photovoltaic system.

[0006] The community photovoltaic system planning method of the present invention, wherein the photovoltaic system can be laid with a total area A pv =P·A b ; A b is the total building area, n is the total number of buildings in the target community, A i is the building area of ​​the i-th building in the target community.

[0007] The community photovoltaic system planning method of the present invention comprises: AR i is the roof area of ​​the i-th building in the target community, C i is the proportion of the photovoltaic area available on the roof of the i-th building in the target community, A r A is the paving area of ​​the roofs of residential buildings in the target community. o A is the paving area of ​​the office building roof in the target community. h A is the paving area of ​​the hotel building roof in the target community. s A is the paving area of ​​the school building roof in the target community. c A is the paving area of ​​commercial building roofs in the target community. u The paving area of ​​other building roofs in the target community; r , A o , A h , A s , A c and / or A u , generate the community photovoltaic system planning plan.

[0008] The present invention also proposes a community photovoltaic system planning system based on the improvement of electrification rate, including: a derivation module, used to derive the total photovoltaic paving area of ​​the target community; wherein the total building area and the energy consumption per unit building area of ​​the target community, and the unit photovoltaic area power generation of the photovoltaic system are obtained; the photovoltaic comprehensive area ratio of the target community is obtained by the energy consumption per unit building area and the power generation per unit photovoltaic area; based on the photovoltaic comprehensive area ratio and the total building area, the total photovoltaic paving area of ​​the target community is derived; a planning module, used to generate a community photovoltaic system planning scheme for the target community according to the total photovoltaic paving area.

[0009] The community photovoltaic system planning system of the present invention, wherein the community photovoltaic comprehensive area ratio The total photovoltaic area A pv =P·A b ; E ib is the energy consumption per unit building area, α is the energy substitution coefficient, E pv is the power generation per unit photovoltaic area, A b is the total building area, n is the total number of buildings in the target community, A i is the building area of ​​the i-th building in the target community.

[0010] The present invention also proposes a computer-readable storage medium storing computer-executable instructions, characterized in that when the computer-executable instructions are executed, the community photovoltaic system planning based on electrification as described above is implemented.

[0011] The present invention also proposes a data processing device, including the computer-readable storage medium as described above. When the processor of the data processing device calls and executes the computer-executable instructions in the computer-readable storage medium, the electrification-based community photovoltaic system planning for the target community is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a flow chart of the community photovoltaic system planning method based on electrification rate improvement of the present invention.

[0013] Figure 2 This is a schematic diagram of energy consumption of communities of different levels in different climate zones.

[0014] Figure 3 Schematic diagram of photovoltaic power generation in different climate zones.

[0015] Figure 4 This is a schematic diagram of energy consumption and photovoltaic comprehensive area ratio of example communities in different climate zones.

[0016] Figure 5It is a schematic diagram of a data processing device of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0018] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0019] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0020] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0021] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0022] The purpose of the present invention is to provide a community photovoltaic system planning method based on full electrification, so as to solve the problem of lack of a simplified calculation method for the installed capacity required for photovoltaic replacement of traditional energy in existing community planning.

[0023] like Figure 1 As shown, the community photovoltaic system planning method based on full electrification of the present invention includes:

[0024] 1. Determine the total energy consumption of buildings in the community through simulation, and determine the energy consumption of various energy forms in the community based on the energy consumption ratio of each part of the community.

[0025] 2. According to the local solar energy resources, retrieve the annual solar irradiance data, and determine the photovoltaic power generation per unit area through calculation based on the selected photovoltaic system photoelectric conversion efficiency.

[0026] 3. Calculate the comprehensive photovoltaic area ratio of community photovoltaic power generation to replace different energy forms

[0027]

[0028] In formula (1): P is the percentage of photovoltaic comprehensive area; E ibThe annual energy consumption per unit building area is kWh / m 2 a,E pv is the annual power generation per unit photovoltaic area, in kWh, and α is the energy substitution coefficient.

[0029] 4. The comprehensive photovoltaic area ratio is also the ratio of the roof photovoltaic laying area to the building area in the community. Therefore, the P value obtained according to formula (1) can be combined with the photovoltaic layout area of ​​the community buildings in the planning stage to determine the photovoltaic planning layout area of ​​the community.

[0030]

[0031] In formula (2): AR i is the roof area of ​​the i-th building in the community, in m 2 ; C i is the proportion of photovoltaic usable area on the roof of the i-th building in the community, %; n is the total number of buildings in the target community; A i is the building area of ​​the i-th building in the community, in m 2 ; A r The paving area of ​​the community residential building roof, in m 2 ; A o The paving area of ​​the community office building roof, in m 2 ; A h The paving area of ​​the community hotel building roof, in m 2 ; A s The paving area of ​​the roof of the community school building, in m 2 ; A c The paving area of ​​the community commercial building roof, in m 2 ; A u The area of ​​rooftops of other buildings in the community that can be laid, in m 2 ; A pv The total area of ​​community photovoltaic planning and layout, in m 2 ; A b is the total building area of ​​the community, in m 2 .

[0032] From formula (1) and formula (2), we can deduce

[0033] A pv =P×A b (3)

[0034] According to the total area that can be laid for community photovoltaic pv Plan community photovoltaic systems for the community.

[0035] Furthermore, formula (2) can also be used to deduce

[0036]

[0037] Based on formula (4), a detailed community photovoltaic system planning scheme can be further generated, such as allocating paved areas according to different building types, building functions, and user needs.

[0038] In summary, the present invention provides a community photovoltaic system planning method based on the improvement of electrification rate, including: obtaining the total building area and energy consumption per unit building area of ​​the target community, and the power generation per unit photovoltaic area of ​​the photovoltaic system; obtaining the photovoltaic comprehensive area ratio of the target community based on the energy consumption per unit building area and the power generation per unit photovoltaic area; deriving the total photovoltaic paving area of ​​the target community based on the photovoltaic comprehensive area ratio and the total building area; and generating a community photovoltaic system planning scheme for the target community based on the total photovoltaic paving area.

[0039] Among them, the comprehensive photovoltaic area ratio of the community E ib is the energy consumption per unit building area, α is the energy substitution coefficient, E pv is the power generation per unit photovoltaic area; 0≤α≤1, when the community photovoltaic system planning scheme for the target community is full electrification, α=1; E pv =I·C, I is the annual solar radiation per unit area in the target community, and C is the average photoelectric conversion efficiency of the photovoltaic system.

[0040] The total photovoltaic area A pv =P·A b ; A b is the total building area, n is the total number of buildings in the target community, A i is the building area of ​​the i-th building in the target community.

[0041] In addition, the total area of ​​photovoltaic AR i is the roof area of ​​the i-th building in the target community, C i is the proportion of the photovoltaic area available on the roof of the i-th building in the target community, A r A is the paving area of ​​the roofs of residential buildings in the target community. o A is the paving area of ​​the office building roof in the target community. h A is the paving area of ​​the hotel building roof in the target community. s A is the paving area of ​​the school building roof in the target community. c A is the paving area of ​​commercial building roofs in the target community. uThe paving area of ​​other building roofs in the target community; r , A o , A h , A s , A c and / or A u , generate the community photovoltaic system planning plan.

[0042] The present invention also proposes a community photovoltaic system planning system based on the improvement of electrification rate, including: a derivation module, used to derive the total photovoltaic paving area of ​​the target community; wherein the total building area and the energy consumption per unit building area of ​​the target community, and the unit photovoltaic area power generation of the photovoltaic system are obtained; the photovoltaic comprehensive area ratio of the target community is obtained by the energy consumption per unit building area and the power generation per unit photovoltaic area; based on the photovoltaic comprehensive area ratio and the total building area, the total photovoltaic paving area of ​​the target community is derived; a planning module, used to generate a community photovoltaic system planning scheme for the target community according to the total photovoltaic paving area.

[0043] Among them, the comprehensive photovoltaic area ratio of the community The total photovoltaic area A pv =P·A b ; E ib is the energy consumption per unit building area, α is the energy substitution coefficient, E pv is the power generation per unit photovoltaic area, A b is the total building area, n is the total number of buildings in the target community, A i is the building area of ​​the i-th building in the target community.

[0044] In order to verify the photovoltaic comprehensive area ratio required for renewable energy to replace community fossil energy, the energy consumption of communities in different climate zones is determined according to GB55015-2022 "General Specification for Building Energy Conservation and Renewable Energy" and "Technical Standard for Nearly Zero Energy Consumption Buildings". First, the energy consumption of communities of different levels is calculated (such as Figure 2 According to GB50495-2019 "Technical Standards for Solar Heating Engineering", the renewable energy generation situation is determined (see Figure 3 ). According to formula (1), α is set to 1, and the comprehensive photovoltaic area ratio of communities in different climate zones and different levels is determined, see Table 1.

[0045]

[0046] Table 1: Comprehensive area ratio of community photovoltaic under community energy substitution goals

[0047] To verify the photovoltaic comprehensive area ratio required for renewable energy to replace community fossil energy, such as Figure 4 As shown, community A in the hot-summer-warm-winter area, community B in the hot-summer-cold-winter area, and community C in the cold area were selected for analysis. Community A is located in the hot-summer-warm-winter climate zone and is a low-carbon community that uses electricity for energy supply. Community B is located in the hot-summer-cold-winter climate zone. The community energy forms are electricity and gas. The community was built a long time ago and its energy-saving measures are relatively backward. Community C is located in the cold climate zone. The community energy forms are electricity, gas and traditional central heating. The specific energy consumption is shown in Table 2.

[0048]

[0049] Table 2: Energy consumption of each community

[0050] According to Table 2 and Formula 1, calculate and determine the photovoltaic comprehensive area ratio P. Figure 4 and Table 3. The comprehensive photovoltaic area ratios of each part of the three communities are all within the range of the corresponding comprehensive photovoltaic area ratios in Table 1, indicating the accuracy of the calculation of this planning method.

[0051] Municipal power (%) Gas (%) Traditional heating (%) A Community 24.5 NA NA Community B 32.0 7.9 NA C Community 19.1 5.4 5.5

[0052] Table 3: Ratio of photovoltaic comprehensive area in each community where photovoltaic power generation replaces traditional energy

[0053] Based on Formula 2 and the building area in the community, we can calculate the roof area needed to install photovoltaics to complete electricity substitution in the community.

[0054] The beneficial effect of the present invention is to fill the problem of the lack of a simplified calculation method for photovoltaic systems to replace traditional energy in the community planning stage. The method can be used to quickly calculate the photovoltaic installed area.

[0055] Figure 5 Schematic diagram of the data processing device of the present invention. Figure 5As shown, an embodiment of the present invention further provides a computer-readable storage medium, and a data processing device. The computer-readable storage medium of the present invention stores computer-executable instructions, and when the computer-executable instructions are executed by the processor of the data processing device, the above-mentioned community photovoltaic system planning based on the improvement of the electrification rate is realized. A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing related hardware (such as a processor, FPGA, ASIC, etc.) through a program, and the program can be stored in a readable storage medium, such as a read-only memory, a disk or an optical disk, etc. All or part of the steps of the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module in the above embodiment can be implemented in the form of hardware, such as implementing its corresponding functions through an integrated circuit, or in the form of a software functional module, such as implementing its corresponding functions through a processor executing a program / instruction stored in a memory. The embodiment of the present invention is not limited to any specific form of combination of hardware and software.

[0056] It should be understood by those skilled in the art that the exemplary components, systems and methods described in conjunction with the embodiments disclosed herein can be implemented in hardware, software or a combination of the two. Whether it is performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier.

[0057] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0058] In the present invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with features of other embodiments or replace features of other embodiments.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A community photovoltaic system planning method based on electrification rate improvement, characterized in that: include: Obtain the total building area and energy consumption per unit building area of ​​the target community, as well as the power generation per unit photovoltaic area of ​​the photovoltaic system; The photovoltaic comprehensive area ratio of the target community is obtained by the energy consumption per unit building area and the power generation per unit photovoltaic area; based on the photovoltaic comprehensive area ratio and the total building area, the total photovoltaic paving area of ​​the target community is derived; Based on the total photovoltaic installation area, a community photovoltaic system planning plan for the target community is generated.

2. The community photovoltaic system planning method according to claim 1, characterized in that: The comprehensive photovoltaic area ratio of this community Among them, E ib is the energy consumption per unit building area, α is the energy substitution coefficient, E pv is the power generation per unit photovoltaic area.

3. The community photovoltaic system planning method according to claim 2, characterized in that: 0≤α≤1, when the community photovoltaic system planning scheme for the target community is full electrification, α=1.

4. The community photovoltaic system planning method according to claim 2, characterized in that: E pv =I·C; where I is the annual solar radiation per unit area in the target community, and C is the average photoelectric conversion efficiency of the photovoltaic system.

5. The community photovoltaic system planning method according to claim 2, characterized in that: The total area of ​​photovoltaic installation is A pv =P·A b ; Among them, A b is the total building area, n is the total number of buildings in the target community, A i is the building area of ​​the i-th building in the target community.

6. The community photovoltaic system planning method according to claim 5, characterized in that: Among them, AR i is the roof area of ​​the i-th building in the target community, C i is the proportion of the photovoltaic area available on the roof of the i-th building in the target community, A r A is the paving area of ​​the roofs of residential buildings in the target community. o A is the paving area of ​​the office building roof in the target community. h A is the paving area of ​​the hotel building roof in the target community. s A is the paving area of ​​the school building roof in the target community. c A is the paving area of ​​commercial building roofs in the target community. u The available paving area on the roofs of other buildings in the target community; According to A r , A o , A h , A s , A c and / or A u , generate the community photovoltaic system planning plan.

7. A community photovoltaic system planning system based on electrification rate improvement, characterized in that: include: A derivation module is used to derive the total photovoltaic paving area of ​​the target community; wherein the total building area and the energy consumption per unit building area of ​​the target community, as well as the power generation per unit photovoltaic area of ​​the photovoltaic system are obtained; the photovoltaic comprehensive area ratio of the target community is obtained by the energy consumption per unit building area and the power generation per unit photovoltaic area; based on the photovoltaic comprehensive area ratio and the total building area, the total photovoltaic paving area of ​​the target community is derived; The planning module is used to generate a community photovoltaic system planning plan for the target community based on the total photovoltaic paving area.

8. The community photovoltaic system planning system according to claim 7, characterized in that: The comprehensive photovoltaic area ratio of this community The total area of ​​photovoltaic installation is A pv =P·A b ; Among them, E ib is the energy consumption per unit building area, α is the energy substitution coefficient, E pv is the power generation per unit photovoltaic area, A b is the total building area, n is the total number of buildings in the target community, A i is the building area of ​​the i-th building in the target community.

9. A computer-readable storage medium storing computer-executable instructions, characterized in that: When the computer executable instructions are executed, the electrification-based community photovoltaic system planning as described in any one of claims 1 to 6 is implemented.

10. A data processing device, comprising the computer-readable storage medium as claimed in claim 9, wherein when the processor of the data processing device retrieves and executes the computer-executable instructions in the computer-readable storage medium, the electrification-based community photovoltaic system planning for the target community is implemented.

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