CN114611991B - Wind power photovoltaic base comprehensive planning method and system based on spatial analysis - Google Patents
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Abstract
The invention provides a wind power photovoltaic base comprehensive planning method and system based on spatial analysis, wherein the method comprises the steps of obtaining regional basic grid data and preprocessing the data; according to the removing conditions, a photovoltaic developable area and a wind power developable area are obtained; superposing, wherein grids which are not superposed are respectively determined as grids capable of developing photovoltaic or wind power, and simultaneously belong to grids in areas where wind power and photovoltaic technologies can be developed, respectively calculating photovoltaic development advantage degrees and wind power development advantage degrees, and comparing the photovoltaic development advantage degrees and the wind power development advantage degrees corresponding to the grids to determine the grid development types and the wind power photovoltaic planning strategies of the areas; the method comprises the steps of respectively evaluating the development potentials of wind power and photovoltaic resources of a region, then carrying out grid superposition analysis on the obtained wind power developable region and the obtained photovoltaic developable region, and judging the grid development type by comparing the dominance degrees of wind power and photovoltaic development; and obtaining accurate wind power/photovoltaic development potential.
Description
Technical Field
The document relates to the technical field of clean energy planning, in particular to a wind power and photovoltaic base comprehensive planning method and system based on space analysis.
Background
Under the background of coping with climate change, clean energy becomes an important development direction of global energy power. The reasonable planning of wind power and photovoltaic is one of important means for realizing the double-carbon target, the resource development potential of the wind power and photovoltaic is accurately evaluated, and the method has important significance for formulating an energy clean transformation path and realizing the double-carbon target.
In the prior art, a method for resource planning and evaluation of wind power and photovoltaic in a region is to divide and evaluate the development potential of wind power and photovoltaic resources, the same land space is not considered, one power generation type is developed, and then another power generation type is developed, which may be influenced, so that the overestimation or unreasonable estimation on the development potential of the wind power and photovoltaic resources is caused.
In view of the above, a comprehensive evaluation method for wind power and photovoltaic development potential needs to be researched to obtain more objective and more available wind power and photovoltaic development potential data.
Disclosure of Invention
One or more embodiments of the present specification provide a wind power and photovoltaic base comprehensive planning method based on spatial analysis, including the following steps:
obtaining regional basic grid data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data and a protected region;
processing the obtained data into uniform spatial resolution by a resampling and cutting method;
removing grids which do not accord with the conditions according to the preprocessed data and the set solar energy resource amount and terrain angle removing conditions, and simultaneously removing grids which do not accord with the land utilization conditions according to the land utilization conditions to obtain a photovoltaic developable area;
removing grids which do not accord with the conditions according to the preprocessed data and the set wind energy resource limiting conditions, and simultaneously removing grids which do not accord with the land utilization conditions according to the land utilization conditions to obtain a wind power developable area;
superposing the obtained photovoltaic developable area and the wind power developable area through a space analysis tool, respectively determining grids which are not superposed as grids capable of developing photovoltaic or wind power, respectively calculating and comparing photovoltaic development dominance and wind power development dominance of grids which belong to the wind power and photovoltaic technology developable areas at the same time, covering the grids with small dominance with the grids with large dominance, determining the development type corresponding to the grids, and determining the wind power photovoltaic planning strategy of the areas; wherein,
the photovoltaic development dominance was calculated as: calculating the photovoltaic developability of each grid in the photovoltaic developable area through the grid dimension; calculating the development cost of the photovoltaic developable area corresponding to each grid by an LCOE method; calculating photovoltaic development dominance degrees corresponding to the grids;
the wind power development dominance degree is calculated as: calculating the wind power exploitable amount of each grid in the wind power exploitable area through the grid scale; calculating the development cost of the wind power developable area corresponding to each grid by an LCOE method; and calculating the wind power development dominance degree corresponding to each grid.
One or more embodiments of the present specification provide a wind power and photovoltaic base comprehensive planning system based on spatial analysis, which includes
The data acquisition unit is used for acquiring regional basic grid data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data and a protected region;
the data preprocessing unit is used for processing the data acquired by the data acquisition unit into uniform spatial resolution by a resampling and cutting method;
photovoltaic developable area determination unit: removing grids which do not meet the conditions according to the set solar energy resource quantity and the terrain angle removing conditions by using the data preprocessed by the data preprocessing unit, and removing grids which do not meet the land utilization conditions according to the land utilization conditions to obtain a photovoltaic developable area;
wind power exploitable area determination unit: removing grids which do not accord with the conditions according to the set wind energy resource limiting conditions by using the data preprocessed by the data preprocessing unit, and simultaneously removing the grids which do not accord with the land utilization conditions according to the land utilization conditions, so that a wind power developable area is obtained;
the wind power photovoltaic planning strategy determination unit of the region: superposing a photovoltaic developable area obtained by a photovoltaic developable area determining unit and a wind power developable area obtained by a wind power developable area determining unit by a space analysis tool, respectively determining grids which are not superposed into grids capable of developing photovoltaic or wind power, for grids which belong to the wind power and photovoltaic technology developable areas at the same time, calling a photovoltaic development dominance degree calculating unit and a wind power development dominance degree calculating unit, respectively calculating and comparing the magnitude of the photovoltaic development dominance degree and the magnitude of the wind power development dominance degree, covering the grids with large dominance degrees with small dominance degrees, determining the development type corresponding to the grids, and determining a wind power photovoltaic planning strategy of the areas;
photovoltaic development dominance calculation unit: calculating the photovoltaic developable amount of each grid in the photovoltaic developable area obtained by the photovoltaic developable area determining unit through the grid dimension; calculating the development cost of the photovoltaic developable area corresponding to each grid through an LCOE method, and calculating the photovoltaic development dominance degree corresponding to each grid;
wind power development dominance calculation unit: calculating the wind power exploitable amount of each grid in the wind power exploitable area obtained by the wind power exploitable area determining unit through the grid scale; and calculating the development cost of the wind power developable area corresponding to each grid through an LCOE method, and calculating the wind power development dominance degree corresponding to each grid.
One or more embodiments of the present specification provide a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor, when executing the computer program, implements the wind power and photovoltaic base comprehensive planning method based on spatial analysis as described above.
One or more embodiments of the present specification provide a computer-readable storage medium storing a computer program which, when executed by a processor, implements the wind power and photovoltaic base integrated planning method based on spatial analysis as described above.
The method provided by the invention is used for respectively evaluating the development potentials of the wind power and photovoltaic resources in the region to obtain the development potentials of the wind power and photovoltaic resources in the region. Secondly, grid superposition analysis is carried out on the obtained wind power developable area and the obtained photovoltaic developable area, and for grids which belong to the wind power developable area and the photovoltaic developable area at the same time, the power generation type more suitable for development of the grids is judged by comparing the dominance degrees of wind power development and photovoltaic development; more accurate wind power and photovoltaic development potential is obtained.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and that other drawings can be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a flowchart of a wind power and photovoltaic base comprehensive planning method based on spatial analysis according to one or more embodiments of the present disclosure;
fig. 2 is a schematic view of a scene of a wind power and photovoltaic base comprehensive planning method based on spatial analysis according to one or more embodiments of the present disclosure;
fig. 3 is a schematic frame diagram of a wind power and photovoltaic base comprehensive planning system based on spatial analysis according to one or more embodiments of the present disclosure;
fig. 4 is a schematic structural diagram of a computer device according to one or more embodiments of the present disclosure.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in one or more embodiments of the present disclosure, the technical solutions in one or more embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in one or more embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from one or more of the embodiments described herein without making any inventive step shall fall within the scope of protection of this document.
The invention is described in detail below with reference to specific embodiments and the accompanying drawings.
Method embodiment
According to an embodiment of the present invention, a wind power photovoltaic base comprehensive planning method based on spatial analysis is provided, as shown in fig. 1, which is a schematic flow chart of the wind power photovoltaic base comprehensive planning method based on spatial analysis provided by the present invention, and the wind power photovoltaic base comprehensive planning method based on spatial analysis according to the embodiment of the present invention includes the steps of:
acquiring regional basic grid data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data, a protected region and the like;
secondly, processing the obtained data into data with consistent spatial resolution by a resampling and cutting method; specifically, the method can be implemented by using ArcGIS, ENVI and other tools.
And step three, removing the grids which do not meet the conditions according to the set solar energy resource amount and the terrain angle removing conditions by using the data preprocessed in the step two, and removing the grids which do not meet the land utilization conditions according to the land utilization conditions, so that the photovoltaic developable area is obtained.
And step four, removing the grids which do not accord with the conditions according to the set wind energy resource limiting conditions by using the data preprocessed in the step two, and simultaneously removing the grids which do not accord with the land utilization conditions according to the land utilization conditions, so that the wind power developable area is obtained.
And fifthly, superposing the photovoltaic developable area in the third step and the wind power developable area in the fourth step through a space analysis tool, respectively determining grids which are not superposed into grids capable of developing photovoltaic or wind power, calling the grids in the sixth step and the seventh step for grids which belong to the wind power and photovoltaic technology developable areas simultaneously, respectively calculating the photovoltaic development dominance and the wind power development dominance, comparing the photovoltaic development dominance and the wind power development dominance corresponding to the grids, covering the grids with large dominance to the grids with small dominance, determining the corresponding grid development type, and determining the wind power photovoltaic planning strategy of the areas.
Calculating the photovoltaic developability of each grid in the photovoltaic developable area through the grid scale; and calculating the development Cost of the photovoltaic developable area corresponding to each grid by an LCOE (leveled Cost of Energy) method, and calculating the photovoltaic development dominance corresponding to each grid.
Step seven, calculating the wind power exploitable amount of each grid in the wind power exploitable area through the grid scale; and calculating the development cost of the wind power developable area corresponding to each grid through an LCOE method, and calculating the wind power development dominance degree corresponding to each grid.
In the fifth step of this embodiment, for the situation that the photovoltaic development dominance degree and the wind power development dominance degree are equal, it is described that the conditions set by the method are judged that the advantages of the developed wind power and the developed photovoltaic are the same, and can be marked according to the requirements, so that the planner can conveniently deploy according to experience or more specific requirements; or further screening and determining the type suitable for development according to other set conditions, such as comparing absolute values of development costs, strength of local wind power and photovoltaic excitation policies, and the like, but this situation is not the key point of consideration in this embodiment, and therefore, redundant description is not repeated.
The method of the embodiment evaluates the development potentials of the wind power and photovoltaic resources of the region respectively to obtain the development potentials of the wind power and photovoltaic resources of the region. Secondly, grid superposition analysis is carried out on the obtained wind power developable area and the obtained photovoltaic developable area, and for grids which belong to the wind power developable area and the photovoltaic developable area at the same time, the power generation type more suitable for development of the grids is judged by comparing the dominance degrees of wind power development and photovoltaic development; more accurate wind power and photovoltaic development potential is obtained.
The above technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In the third step of the embodiment, the grid which does not meet the conditions is removed according to the preset solar energy resource amount and the terrain condition removing conditions by using the data preprocessed in the second step, and the grid which does not meet the land utilization conditions is removed according to the land utilization conditions, so that the photovoltaic developable area is obtained,
the conditions for eliminating the solar energy resource amount and the terrain angle set in this embodiment are specifically as follows: the ground gradient is not less than 3-15%, and the solar radiation quantity is not more than 1-10kWh/m 2 D, the removing condition can be determined according to the available data type and the engineering technical condition; the preferable ground gradient is not less than 5 percent, and the solar radiation quantity is not more than 3kWh/m 2 /d。
The land utilization conditions are as follows: removing town areas, forest coverage areas, crop coverage areas, water bodies, protection areas and the like.
In this embodiment, the grid rejection mode that meets the rejection condition or does not meet the land use condition may be to assign an invalid value to the grid.
In the fourth step of this embodiment, the data preprocessed in the second step are used, grids which do not meet the conditions are removed according to the set wind energy resource limiting conditions, and grids which do not meet the land utilization conditions are removed according to the land utilization conditions, so that a wind power developable area is obtained, wherein,
the wind energy resource limiting conditions set in this embodiment may specifically be: the average wind speed is less than or equal to 5-20m/s, and the removing condition can be determined according to the available data type and the engineering technical condition; the preferred average wind speed is < 5 m/s.
The land utilization conditions are the elimination of natural protection areas, forest lands, artificial surfaces, towns, water bodies and other areas.
In this embodiment, the grid rejection method that satisfies the rejection condition or does not satisfy the land use condition may be to assign an invalid value to the grid.
In this embodiment, the step five specifically includes the following steps:
and (4) performing superposition analysis on the photovoltaic exploitable area obtained in the third step and the wind power exploitable area obtained in the fourth step (the spatial resolution of the photovoltaic exploitable area and the spatial resolution of the wind power exploitable area need to be consistent), as shown in fig. 2. Can be completed by adopting spatial analysis tools such as ArcGIS, ENVI and the like, wherein:
for a grid belonging only to a region where photovoltaic technology can be developed (e.g. grid 1 in fig. 2), the grid is then suitable for photovoltaic development; for grids belonging only to areas where wind power technology can be developed (e.g. grid 3 in fig. 2), the grid is suitable for wind power development; for a grid (for example, grid 2 in fig. 2) belonging to a development area of wind power and photovoltaic technologies at the same time, a suitable development type is judged by comparing the magnitude of the photovoltaic and wind power development dominance (specifically, the calculation is as follows), including the following two cases:
if PV deg ＞wind deg Then the corresponding area of the grid is suitable for developing photovoltaic.
If PV deg ＜wind deg And the area corresponding to the grid is suitable for developing wind power.
In the sixth step, the photovoltaic developability of each grid in the photovoltaic developable area is calculated through the grid scale; and calculating the development cost of the photovoltaic developable area corresponding to each grid and calculating the photovoltaic development dominance degree corresponding to each grid by an LCOE method, wherein the specific calculation is as follows:
1) evaluating the photovoltaic technology developability at the grid scale, including the machine loading capacity and the generating capacity, wherein the calculation formula is as follows:
C PV,grid ＝A×W PV (1)
in the formula, C PV,grid The photovoltaic loading capacity is the grid scale, A is the grid area, W PV The unit area of the capacity of the installable photovoltaic power station is generally 30-40 MW/km of empirical value 2 。
P PV,grid ＝C PV,grid ×h PV (2)
In the formula, P PV,grid Photovoltaic power generation of grid scale, h PV The number of photovoltaic utilization hours.
2) Calculating the development cost of the photovoltaic developable area corresponding to each grid by using an LCOE method as follows:
the method comprises the steps that the average electricity consumption cost (LCOE) is obtained by averagely distributing the cost of a power generation project in the whole life cycle to unit power generation amount, and the calculated parameters comprise project-related parameters such as project operation period, construction cost, operation and maintenance cost and expected annual power generation amount and economy-related parameters such as currency expansion rate, capital cost and tax rate. Because the LCOE can reflect the cost and the income of the full life cycle of the power generation project more comprehensively, the research takes the LCOE as a parameter for measuring the development cost of the regional power generation project. Photovoltaic LCOE is calculated as follows:
in the formula, INVT PV Initial investment for a photovoltaic project, i.e., dynamic investment or construction cost of the project, including engineering, procurement, construction (EPC) costs and construction period interest; dep PV The method is the present value of tax deduction and exemption caused by depreciation in the whole life cycle of the photovoltaic project; RV (direction of rotation) PV Fixing the current value of the asset residual value for the photovoltaic project, namely the construction cost which is not consumed in the whole life cycle; AC PV The current value of the project operation cost in the whole life cycle of the photovoltaic project is obtained, wherein the operation cost comprises operation and maintenance cost and financial cost; IEP PV The average expected power generation amount for the photovoltaic project is many years; SDR (standard definition radio) PV The attenuation rate of a photovoltaic power generation system generally refers to the attenuation rate of a photovoltaic component; DR (digital radiography) PV The discount rate is obtained; TR (transmitter-receiver) PV A tax rate for the income tax; n is 1,2, …, N, which is the operation period of the photovoltaic project.
In this embodiment, to implement the grid comparison of the LCOE, the LCOE of each grid in the technology-developed area is calculated by combining the solar energy resource map distributed by the grid. In the aspect of electric quantity, the generated energy condition of the grid is obtained according to the solar resource data of the grid, other main parameters such as construction cost, loan rate, tax rate, operation and maintenance cost and the like of a project level are assigned in a subarea mode according to the construction cost and the regional actual condition of an actual project.
3) Calculating the photovoltaic development dominance degree corresponding to each grid specifically as follows:
in order to quantitatively judge the degree of each grid suitable for developing the photovoltaic, the embodiment provides an advantage concept of photovoltaic development, wherein the advantage of photovoltaic development includes resource advantage and economic advantage, and the method comprises the following steps:
the resource dominance calculation formula is as follows:
in the formula, R PV,deg The resource dominance degree; r PV The solar resource amount (such as radiant quantity) corresponding to the grid can be obtained from the solar resource map data acquired in the first step; r is PV,max And R PV,min The maximum value and the minimum value of the solar energy resource amount in the technology development area are respectively, wherein the larger the solar energy resource amount distributed in the grid is, the larger the resource dominance degree is.
The economic advantage calculation formula is as follows:
in the formula, E PV,deg The economic advantage is achieved; e PV Calculating the development cost (LCOE) corresponding to the grid and the LCOE; e PV,max And E PV,min Maximum and minimum values of photovoltaic development costs within the technology-exploitable area are respectively established, wherein the lower the corresponding development cost in the grid, the greater the degree of economic advantage.
The photovoltaic development dominance is obtained by weighting the resource dominance and the economic dominance:
PV deg ＝α×R PV,deg +(1-α)E PV,deg (6)
in the formula, PV deg For photovoltaic development dominance, alpha and 1-alpha are respectively resource dominance R PV,deg And degree of economic advantage E PV,deg The weight of (c). If there are no special considerations, the two weights may be taken to be equal.
Step seven, calculating the wind power exploitable amount of each grid in the wind power exploitable area through the grid scale; and calculating the development cost of the wind power developable area corresponding to each grid through an LCOE method, and calculating the wind power development dominance degree corresponding to each grid, wherein the specific calculation is as follows:
1) and evaluating the wind power exploitable amount including the loading amount and the generating capacity at the grid scale, wherein the calculation formula is as follows:
C wind,grid ＝A×W wind (7)
in the formula, C wind,grid The wind power loading capacity of grid scale is shown, A is the grid area, W wind The installed capacity of the wind power which can be installed in unit area is generally 10MW/km 2 。
P wind,grid ＝C wind,grid ×h wind (8)
In the formula, P wind,grid Is the wind power generation amount of grid scale, h wind The number of hours of wind power utilization.
2) Calculating the development cost of the wind power developable area corresponding to each grid by using an LCOE method as follows:
the leveling electricity cost (LCOE) is also adopted as a parameter for measuring the development cost of the wind power project; the wind power project LCOE is calculated as follows:
in the formula, INVT wind The method comprises the steps of (1) setting initial investment of a wind power project, namely dynamic investment or construction cost of the project, wherein the initial investment comprises engineering, purchasing, construction (EPC) cost and interest of a construction period; dep wind The method is the present value of tax deduction and exemption caused by depreciation in the whole life cycle of the wind power project; RV (direction of rotation) wind Fixing the current value of the asset residual value for the wind power project, namely the construction cost which is not consumed in the whole life cycle; AC wind The current value of the project operation cost in the whole life cycle of the wind power project is obtained, wherein the operation cost comprises operation and maintenance cost and financial cost; IEP wind The method includes the steps that the average expected generating capacity for a wind power project is obtained for many years; SDR (standard definition radio) wind The attenuation rate of a wind power project power generation system is smaller and can be ignored; DR (digital radiography) wind The discount rate is obtained; TR (transmitter-receiver) wind A tax rate for the income tax; and N is 1,2, …, and N is the operating period of the wind power project.
3) Calculating the wind power development dominance degree corresponding to each grid as follows:
in the embodiment, in order to quantitatively judge the degree of suitability of each grid for developing wind power, an advantage degree concept of wind power development is provided, and the advantage degree of wind power development comprises resource advantage degree and economic advantage degree, wherein:
the resource dominance calculation formula is as follows:
in the formula, R wind,deg The resource dominance degree; r wind The wind energy resource amount corresponding to the grid can be obtained in the first step; r wind,max And R wind,min The maximum value and the minimum value of the wind energy resource amount in the technology development area are respectively, wherein the larger the wind energy resource amount distributed in the grid is, the larger the resource dominance degree is.
The economic advantage calculation formula is as follows:
in the formula, E wind,deg The economic advantage is achieved; e wind Development cost for grid (LCOE); e wind,max And E wind,min And respectively developing the maximum value and the minimum value of the wind power development cost in the region for the technology, wherein the lower the corresponding development cost in the grid is, the greater the economic advantage degree is.
The wind power development dominance degree is obtained by weighting the resource dominance degree and the economic dominance degree:
wind deg ＝α×R wind,deg +(1-α)E wind,deg (12)
in the formula, PV deg For the development of dominance degree of wind power, alpha and 1-alpha are respectively resource dominance degree R wind,deg And degree of economic advantage E wind,deg If there is no special consideration, the weights of the two are equal.
Preferably, in this embodiment, through the above superposition analysis, a final photovoltaic and wind power developable area is obtained, and potential installation quantities of all photovoltaic and wind power developable area grids are respectively counted, so that the photovoltaic and wind power developable quantity of the whole area can be determined, and more accurate wind power and photovoltaic development potential is obtained, specifically, as follows:
C PV ＝∑C PV,grid
C wind ＝∑C wind,grid
in the formula, C PV And C wind The technology development amount of the photovoltaic and wind power of the region is respectively.
In the embodiment, in the analysis process of determining the photovoltaic and the wind power through grid superposition, whether grids with two development types are overlapped or not are firstly superposed, and the corresponding dominance degree of the grids is calculated under the condition that the grids are overlapped, so that unnecessary step execution in the analysis process is reduced, and the calculation speed is accelerated.
System embodiment
According to an embodiment of the present invention, there is provided a wind power and photovoltaic base integrated planning system based on spatial analysis, as shown in fig. 3, which is a wind power and photovoltaic base integrated planning system frame diagram based on spatial analysis provided in this embodiment, and the wind power and photovoltaic base integrated planning system based on spatial analysis according to the embodiment of the present invention includes:
and the data acquisition unit is used for acquiring regional basic data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data, a protected region and the like.
And the data preprocessing unit is used for processing the data acquired by the data acquisition unit into uniform spatial resolution and spatial range by a resampling and cutting method.
Photovoltaic developable area determination unit: and removing grids which do not accord with the conditions according to the set solar energy resource amount and the terrain angle removing conditions by using the data processed by the data preprocessing unit, and simultaneously removing the grids which do not accord with the land utilization conditions according to the land utilization conditions to obtain the photovoltaic developable area.
Wind power exploitable area determination unit: and removing the grids which do not accord with the conditions according to the set wind energy resource limiting conditions by using the data processed by the data preprocessing unit, and simultaneously removing the grids which do not accord with the land utilization conditions according to the land utilization conditions, so that the wind power developable area is obtained.
The method comprises the following steps of: the method comprises the steps that a photovoltaic developable area obtained by a photovoltaic developable area determining unit and a wind power developable area obtained by a wind power developable area determining unit are superposed through a space analysis tool, grids which are not superposed are respectively determined as grids capable of developing photovoltaic or wind power, for grids which belong to the wind power and photovoltaic technology developable areas at the same time, a photovoltaic development dominance degree calculating unit and a wind power development dominance degree calculating unit are called, the sizes of the photovoltaic development dominance degree and the wind power development dominance degree are respectively calculated and compared, the grids with large dominance degrees cover the grids with small dominance degrees, the development types corresponding to the grids are determined, and wind power photovoltaic planning strategies of the areas are determined.
Photovoltaic development dominance calculation unit: calculating the photovoltaic developable amount of each grid in the photovoltaic developable area obtained by the photovoltaic developable area determining unit through the grid dimension; and calculating the development cost of the photovoltaic developable area corresponding to each grid through an LCOE method, and calculating the photovoltaic development dominance degree corresponding to each grid.
Wind power development dominance calculation unit: calculating the wind power exploitable amount of each grid in the wind power exploitable area obtained by the wind power exploitable area determining unit through the grid scale; and calculating the development cost of the wind power developable area corresponding to each grid through an LCOE method, and calculating the wind power development dominance degree corresponding to each grid.
Preferably, the system further comprises a regional photovoltaic and wind power exploitable amount calculation unit, and the photovoltaic and wind power exploitable amount is determined by summing calculation according to the potential installation amount of the photovoltaic exploitable regional grid and the wind power exploitable regional grid determined by the regional wind power photovoltaic planning strategy determination unit.
In this embodiment, it should be noted that the system of this embodiment is configured corresponding to the method embodiment, and therefore, the working process or calculation of each unit refers to the method embodiment in detail, which is not described herein again.
As shown in fig. 4, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program when executed by a processor implements the wind power and photovoltaic base integrated planning method based on spatial analysis in the foregoing embodiment, or the computer program when executed by the processor implements the wind power and photovoltaic base integrated planning method based on spatial analysis in the foregoing embodiment, and when executed by the processor, the computer program implements the following method steps:
acquiring regional basic data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data, a protected region and the like;
step two, processing the obtained data into uniform spatial resolution and rasterizing by a resampling and cutting method; specifically, the method can be implemented by using ArcGIS, ENVI and other tools.
And step three, removing the grids which do not meet the conditions according to the set solar energy resource amount and the terrain angle removing conditions by using the data preprocessed in the step two, and removing the grids which do not meet the land utilization conditions according to the land utilization conditions, so that the photovoltaic developable area is obtained.
And step four, removing grids which do not accord with the conditions according to the set wind energy resource limiting conditions by using the data preprocessed in the step two, and simultaneously removing grids which do not accord with the land utilization conditions according to the land utilization conditions, so that the wind power exploitable area is obtained.
And fifthly, superposing the photovoltaic developable area in the third step and the wind power developable area in the fourth step through a space analysis tool, respectively determining grids which are not superposed into grids capable of developing photovoltaic or wind power, calling the grids in the sixth step and the seventh step for grids which belong to the wind power and photovoltaic technology developable areas simultaneously, respectively calculating and comparing the photovoltaic development dominance and the wind power development dominance, covering the grids with large dominance to cover the grids with small dominance, determining the development type corresponding to the grids, and determining the wind power photovoltaic planning strategy of the areas.
Calculating the photovoltaic developability of each grid in the photovoltaic developable area through the grid scale; and calculating the development cost of the photovoltaic developable area corresponding to each grid through an LCOE method, and calculating the photovoltaic development dominance degree corresponding to each grid.
Step seven, calculating the wind power exploitable amount of each grid in the wind power exploitable area through the grid scale; and calculating the development cost of the wind power developable area corresponding to each grid through an LCOE method, and calculating the wind power development dominance degree corresponding to each grid.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A wind power and photovoltaic base comprehensive planning method based on spatial analysis is characterized by comprising the following steps:
obtaining regional basic grid data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data and a protected region;
processing the obtained data into uniform spatial resolution by a resampling and cutting method;
removing grids which do not accord with the conditions according to the preprocessed data and the set solar energy resource amount and terrain angle removing conditions, and simultaneously removing grids which do not accord with the land utilization conditions according to the land utilization conditions to obtain a photovoltaic developable area;
removing grids which do not accord with the conditions according to the preprocessed data and the set wind energy resource limiting conditions, and simultaneously removing grids which do not accord with the land utilization conditions according to the land utilization conditions to obtain a wind power developable area;
superposing the obtained photovoltaic developable area and the wind power developable area through a space analysis tool, respectively determining grids which are not superposed as grids capable of developing photovoltaic or wind power, respectively calculating and comparing the magnitude of photovoltaic development dominance and wind power development dominance for grids which belong to the wind power and photovoltaic technology developable areas at the same time, covering the grids with small dominance, determining the development type corresponding to the grids, and determining the wind power photovoltaic planning strategy of the areas; wherein,
the photovoltaic development dominance was calculated as: calculating the photovoltaic developability of each grid in the photovoltaic developable area through the grid dimension; calculating the development cost of the photovoltaic developable area corresponding to each grid by an LCOE method; calculating photovoltaic development dominance degrees corresponding to the grids;
the wind power development dominance degree is calculated as: calculating the wind power exploitable amount of each grid in the wind power exploitable area through the grid scale; calculating the development cost of the wind power developable area corresponding to each grid by an LCOE method; and calculating the wind power development dominance degree corresponding to each grid.
2. The wind power and photovoltaic base comprehensive planning method based on spatial analysis according to claim 1, wherein the set solar energy resource amount and terrain angle rejection conditions are specifically:
the ground gradient is not less than 3-15%, and the solar radiation quantity is not more than 1-10kWh/m 2 /d；
The land utilization conditions are elimination of town areas, forest coverage areas, crop coverage areas, water bodies and protection areas.
3. The wind power and photovoltaic base comprehensive planning method based on spatial analysis as claimed in claim 1, wherein the set wind energy resource limiting conditions are specifically:
the average wind speed is less than or equal to 5-20 m/s;
the land utilization conditions are elimination of natural protection areas, forest lands, artificial surfaces, towns and water body areas.
4. The wind power and photovoltaic base comprehensive planning method based on spatial analysis as claimed in claim 1, further comprising the steps of:
and respectively counting the potential machine loading amount of all the photovoltaic developable area grids and the wind power developable area grids, and determining the photovoltaic and wind power developable amount of the whole area.
5. A wind power and photovoltaic base comprehensive planning system based on spatial analysis is characterized by comprising
The data acquisition unit is used for acquiring regional basic grid data, including a solar resource map, regional average wind speed/average wind power density data, land utilization data, DEM elevation and gradient data and a protected region;
the data preprocessing unit is used for processing the data acquired by the data acquisition unit into uniform spatial resolution by a resampling and cutting method;
photovoltaic developable area determining unit: removing grids which do not meet the conditions according to the set solar energy resource quantity and the terrain angle removing conditions by using the data preprocessed by the data preprocessing unit, and removing grids which do not meet the land utilization conditions according to the land utilization conditions to obtain a photovoltaic developable area;
wind power exploitable area determination unit: removing grids which do not accord with the conditions according to the set wind energy resource limiting conditions by using the data preprocessed by the data preprocessing unit, and simultaneously removing the grids which do not accord with the land utilization conditions according to the land utilization conditions, so that a wind power developable area is obtained;
the method comprises the following steps of: superposing a photovoltaic developable area obtained by a photovoltaic developable area determining unit and a wind power developable area obtained by a wind power developable area determining unit by a space analysis tool, respectively determining grids which are not superposed into grids capable of developing photovoltaic or wind power, for grids which belong to the wind power and photovoltaic technology developable areas at the same time, calling a photovoltaic development dominance degree calculating unit and a wind power development dominance degree calculating unit, respectively calculating and comparing the magnitude of the photovoltaic development dominance degree and the magnitude of the wind power development dominance degree, covering the grids with large dominance degrees with small dominance degrees, determining the development type corresponding to the grids, and determining a wind power photovoltaic planning strategy of the areas;
photovoltaic development dominance calculation unit: calculating the photovoltaic developable amount of each grid in the photovoltaic developable area obtained by the photovoltaic developable area determining unit through the grid dimension; calculating the development cost of the photovoltaic developable area corresponding to each grid through an LCOE method, and calculating the photovoltaic development dominance degree corresponding to each grid;
wind power development dominance calculation unit: calculating the wind power exploitable amount of each grid in the wind power exploitable area obtained by the wind power exploitable area determining unit through the grid scale; and calculating the development cost of the wind power developable area corresponding to each grid through an LCOE method, and calculating the wind power development dominance degree corresponding to each grid.
6. The wind power and photovoltaic base comprehensive planning system based on spatial analysis as claimed in claim 5, wherein the set solar energy resource amount and terrain angle rejection conditions are specifically:
the ground gradient is not less than 3-15%, and the solar radiation quantity is not more than 1-10kWh/m 2 /d；
The land utilization conditions are elimination of town areas, forest coverage areas, crop coverage areas, water bodies and protection areas.
7. The wind power and photovoltaic base comprehensive planning system based on spatial analysis as claimed in claim 5, wherein the set wind energy resource limiting conditions are specifically:
the average wind speed is less than or equal to 5-20 m/s;
the land utilization conditions are elimination of natural protection areas, forest lands, artificial surfaces, towns and water body areas.
8. The wind power and photovoltaic base integrated planning system based on spatial analysis as claimed in claim 5, comprising
And the regional photovoltaic and wind power exploitable amount calculation unit respectively sums and calculates and determines the photovoltaic and wind power exploitable amount according to the potential machine loading amount of the photovoltaic exploitable region grid and the wind power exploitable region grid determined by the regional wind power photovoltaic planning strategy determination unit.
9. Computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the wind power and photovoltaic base integrated planning method based on spatial analysis according to any of claims 1 to 4.
10. Computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements the wind power and photovoltaic base integrated planning method based on spatial analysis according to any of claims 1 to 4.
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