CN115983011B - Photovoltaic power generation power simulation method, system and storage medium based on annual radiation quantity - Google Patents
Photovoltaic power generation power simulation method, system and storage medium based on annual radiation quantity Download PDFInfo
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Abstract
The invention discloses a photovoltaic power generation power simulation method, a photovoltaic power generation power simulation system and a storage medium based on annual radiation quantity, which comprise the steps of building a three-dimensional model of a building group; wherein the building group three-dimensional model comprises: a plurality of building units; and acquiring annual weather parameter data of a building group construction area, performing simulation writing of the acquired annual weather parameter data into a building group three-dimensional model, and acquiring annual solar energy radiation data information of each facing elevation angle in the building group three-dimensional model. According to the invention, operators can select the optimal layout design of the photovoltaic building according to the annual solar radiation data information received by the elevation of the building or the building group and the annual power generation power of the photovoltaic matrix surface, the position of the photovoltaic building integrated technology is adopted, a building group layout model is established, the photovoltaic power generation amount can be calculated time by time according to the three-dimensional model, and the accuracy of the power generation amount of the photovoltaic building integrated technology is improved. The purpose that the photovoltaic building designed by operators can meet actual requirements to the greatest extent is achieved.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic, in particular to a photovoltaic power generation power simulation method, system and storage medium based on annual radiation quantity.
Background
The integrated photovoltaic building is a technology for integrating a solar power generation (photovoltaic) product onto a building, is a new concept of applying solar power generation, namely, a solar photovoltaic power generation matrix is arranged on the outer surface of an enclosure structure of the building to provide power so as to meet the power consumption requirement of the building, and is a distributed photovoltaic system with the most development potential at present. The integrated photovoltaic building is taken as a combining point of a huge building market and a photovoltaic market with huge potential, and has infinite development prospect. It is expected that the combination of photovoltaic and construction is one of the most important fields in future photovoltaic applications, and has very broad development prospects and great market potential.
The existing photovoltaic building integrated design lacks scientific guidance and basis, lacks accurate simulation of building environment, and only depends on experience to design, so that great theoretical and actual deviation exists in the design. Therefore, in order to realize that the design of the photovoltaic building can meet the actual requirements to the greatest extent, a simulation design scheme of the photovoltaic building is provided.
Disclosure of Invention
The invention provides a photovoltaic power generation power simulation method, a photovoltaic power generation power simulation system and a photovoltaic power generation power simulation storage medium based on annual radiation quantity, which aim to realize that the design of a photovoltaic building can meet actual requirements to the greatest extent.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the first aspect of the invention provides a photovoltaic power generation power simulation based on annual radiation quantity
The method comprises the following steps:
building a three-dimensional model of the building group;
wherein the building group three-dimensional model comprises: a plurality of building units;
acquiring annual weather parameter data of a building group construction area, and performing simulation writing on the acquired annual weather parameter data into a building group three-dimensional model to acquire annual solar energy radiation data information of each facing elevation angle in the building group three-dimensional model;
according to the obtained annual solar energy radiation data information of each facing elevation in the three-dimensional model of the building group, selecting the facing elevation angle with the largest annual solar energy radiation received in the three-dimensional model of the building group as the final facing layout of the three-dimensional model of the building group, and generating a layout model of the building group;
according to a building group layout model, simulating and installing photovoltaic matrixes on a plurality of building monomers, combining annual meteorological parameter data of a building area to obtain annual solar radiation data information of the photovoltaic matrixes on the building monomers at different installation angle positions of the installation area, and simultaneously, obtaining annual energy generation data information of the photovoltaic matrixes by combining the annual solar radiation data information with the photovoltaic matrixes by utilizing the working parameter information of the photovoltaic matrixes;
the photovoltaic matrix selects the optimal installation angle positions of the installation areas of the photovoltaic matrix on the building monomers through annual energy production data information of the installation areas on the building monomers;
obtaining the maximum laying area of the photovoltaic matrix through the optimal installation angle positions of the photovoltaic matrix in the installation areas on the building monomers, forming a photovoltaic matrix surface, and calculating annual power generation of the photovoltaic matrix surface;
specifically, the method for selecting the optimal installation angle position of the installation area of the photovoltaic matrix on the plurality of building monomers comprises the following steps:
step one: selecting a first angle to install a photovoltaic matrix according to a building monomer solar-facing surface in a building group layout model as a basic surface, and acquiring annual energy generation data of the photovoltaic matrix under the first angle installation under the annual solar energy radiation data information according to annual meteorological parameter data of a building area;
step two: taking a certain point on the foundation surface as a reference base point, adjusting a certain specific angle to obtain a second angle, installing a photovoltaic matrix according to the obtained second angle, and acquiring annual energy generation data of annual solar energy radiation data information received by the photovoltaic matrix under the installation of the second angle according to annual meteorological parameter data of a building area;
step three: repeating the second step to obtain annual energy generation data of annual solar energy radiation data information of the photovoltaic matrix installed at a plurality of angles;
step four: according to annual energy generation data of annual solar energy radiation data information received by the obtained photovoltaic matrix installed at a plurality of angles, and simultaneously combining actual conditions of building monomers, obtaining optimal installation angle positions of installation areas of the photovoltaic matrix on the plurality of building monomers;
if the solar energy receiving surface of the photovoltaic matrix installed at the first angle is consistent with the orientation elevation angle of the maximum solar energy radiation quantity of the receiving year of the building group layout model, the following steps are performed:
defining a first angle as a and a specific angle as b, thenWherein a=90°.
In some possible preferred embodiments, the photovoltaic matrix comprises:
at least one photovoltaic panel is arranged, and a plurality of photovoltaic panels are connected in series and/or in parallel.
In some possible preferred embodiments, the operating parameters of the photovoltaic matrix itself include:
the photovoltaic panel receives the generated power of solar radiation, the connection parameters of the photovoltaic panel on a plurality of building monomers and the working parameters of the photovoltaic inverter.
In some possible preferred embodiments, the method for calculating the generated power of the photovoltaic matrix face comprises:
obtaining available areas of installation areas on a plurality of building monomers, and obtaining the maximum paving area of the photovoltaic matrix through the optimal installation angle positions of the installation areas of the photovoltaic matrix on the building monomers;
according to the maximum paving area of the photovoltaic matrix, the installation quantity of the photovoltaic panels and the working parameters of the photovoltaic panels are obtained, the installation capacity of the photovoltaic matrix surface is obtained, and meanwhile, the annual power generation power of the photovoltaic matrix surface is calculated in a weighted mode according to the annual solar radiation data information of the photovoltaic matrix surface.
In some possible preferred embodiments, calculating annual power generation of the photovoltaic matrix surface by weighting means comprises:
annual power generation of a photovoltaic matrix panel is defined asThen:
formula 1;
in the formula 1, the components are mixed,-year solar energy radiation data information,
-installation capacity;
-the integrated efficiency coefficient of the photovoltaic matrix face;
wherein,2, 2
In the formula 2, the components are mixed,-modifying coefficients for the photovoltaic matrix face type;
-dust shielding and temperature rise cause a photovoltaic matrix face power reduction correction factor;
-a photovoltaic matrix face long-term running performance degradation correction coefficient;
-photovoltaic matrix face-to-tilt angle correction factor;
-a light utilization factor;
light Fu JuzhenA face system availability factor;
-line loss correction coefficients;
-inverter efficiency correction factor.
In some possible preferred embodiments, the method for acquiring annual solar radiation data information includes:the number of the components in the liquid crystal display is 3,
in the formula 3, the components are mixed,refers to the intensity of solar radiation from 6 to 18 points per day during a year.
A second aspect of the present invention provides a photovoltaic power generation power simulation system based on annual radiation amount, which is applied to the photovoltaic power generation power simulation method based on annual radiation amount according to any one of the first aspect, the simulation system further comprising:
and the photovoltaic inverter is electrically connected with the photovoltaic matrix.
A third aspect of the present invention provides a computer-readable medium having stored thereon a computer program, wherein the program when executed by a processor implements a annual radiation amount-based photovoltaic power simulation method according to any of the first aspects.
The beneficial effects of the invention are as follows:
in the embodiment of the invention, the optimal orientation layout of the building or the building group is selected according to the maximum solar annual radiation amount of each orientation of the building or the building group. And then simulating and installing the photovoltaic matrix in a building or a building single body, acquiring the installation angle of the photovoltaic matrix with the largest generated energy in the building or the building single body (namely, the photovoltaic matrix surface receives the largest solar radiation energy in the middle year of the installation angle), installing the photovoltaic matrix surface with the largest area according to the installable area on the building or the building single body, and calculating the annual generated power of the photovoltaic matrix surface according to the photovoltaic matrix surface with the largest area. The method comprises the steps that an operator can select the optimal layout design of a photovoltaic building according to annual solar radiation data information received by a building or a facade of a building group and annual power generation power of a photovoltaic matrix surface, a building group layout model is built by adopting the position of a photovoltaic building integrated technology, photovoltaic power generation capacity can be calculated time by time according to a three-dimensional model, and the accuracy of the power generation capacity of the photovoltaic building integrated technology is improved. The purpose that the photovoltaic building designed by operators can meet actual requirements to the greatest extent is achieved.
Drawings
Fig. 1 is a schematic overall flow chart of a photovoltaic power generation power simulation method based on annual radiation quantity provided in an embodiment of the invention;
fig. 2 is a schematic diagram of a photovoltaic matrix obtaining optimal installation angle of a photovoltaic power generation power simulation method based on annual radiation amount according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a simulation of a change of a solar azimuth angle in a photovoltaic power generation power simulation method based on annual radiation amount according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a simulation of a change of solar azimuth angle of a day in a photovoltaic power generation power simulation method based on annual radiation amount according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-4, a first aspect of the present invention provides a photovoltaic based on annual radiation
The simulation method comprises the steps of firstly establishing a three-dimensional model according to foundation construction information of a building or a building group, simultaneously obtaining annual meteorological parameter data of a building or a building group construction area, simulating and writing the annual meteorological parameter data into the three-dimensional model of the building or the building group, and selecting a position surface capable of receiving the maximum annual solar radiation data information as a final orientation layout of the three-dimensional model of the building or the building group according to annual solar radiation data information which can be received by each position surface of the three-dimensional model of the building or the building group. And then simulating and installing a photovoltaic matrix on a building or a building group monomer according to the building group final orientation layout model, simulating and installing the photovoltaic matrix on the building or the building group monomer according to the photovoltaic matrix, and simultaneously combining annual meteorological parameter data of a building area to obtain annual energy production data information of the optimal installation angle of the photovoltaic matrix. And then selecting the optimal orientation layout of the building or the building group according to the maximum solar annual radiation quantity of each orientation of the building or the building group. And then simulating and installing the photovoltaic matrix in a building or a building single body, acquiring the installation angle of the photovoltaic matrix with the largest generated energy in the building or the building single body (namely, the photovoltaic matrix surface receives the largest solar radiation energy in the middle year of the installation angle), installing the photovoltaic matrix surface with the largest area according to the installable area on the building or the building single body, and calculating the annual generated power of the photovoltaic matrix surface according to the photovoltaic matrix surface with the largest area. The method comprises the steps that an operator can select the optimal layout design of a photovoltaic building according to annual solar radiation data information received by a building or a facade of a building group and annual power generation power of a photovoltaic matrix surface, a building group layout model is built by adopting the position of a photovoltaic building integrated technology, photovoltaic power generation capacity can be calculated time by time according to a three-dimensional model, and the accuracy of the power generation capacity of the photovoltaic building integrated technology is improved. The purpose that the photovoltaic building designed by operators can meet actual requirements to the greatest extent is achieved.
Specifically, the simulation method comprises the following steps:
building a three-dimensional model of the building group; wherein the building group three-dimensional model comprises: a plurality of building units; in this embodiment, to facilitate understanding of how to implement building a three-dimensional model of a building, one possible embodiment of the building three-dimensional model is: CAD drawings of a monomer building and a surrounding environment can be imported to build a mathematical model and a surrounding environment model (or a Rhino model, a Sketch-up model and the like are directly imported); for example, building drawing is led in to identify building components (components comprise doors and windows, walls, columns and the like) and rooms according to the layers, then floor assembly is carried out according to the building layer height and the layer number, and the single building model is built. The building group model can be imported into a building total diagram through opening, the built monomer models are merged and imported and are laid out to the corresponding positions of the total diagram, and therefore a building three-dimensional model is generated, and the actual installation requirements are met conveniently.
Acquiring annual weather parameter data of a building group construction area, and performing simulation writing on the acquired annual weather parameter data into a building group three-dimensional model to acquire annual solar energy radiation data information of each facing elevation angle in the building group three-dimensional model; the steps of acquiring annual weather parameter data of the building group construction area in this embodiment are: environmental annual weather parameter data of the building group construction area stored in the cloud or the Internet are acquired through networking, the city name of the building group construction area is included, and information such as provinces and cities is included, so that weather environment information of the building group construction area in the past can be accurately acquired, and parameter information such as solar radiation intensity of the environment where the building group construction area is located is judged.
According to the obtained annual solar energy radiation data information of each facing elevation in the three-dimensional model of the building group, selecting the facing elevation angle with the largest annual solar energy radiation received in the three-dimensional model of the building group as the final facing layout of the three-dimensional model of the building group, and generating a layout model of the building group; i.e. the optimum orientation layout of the building or group of buildings is selected based on the maximum solar annual radiation received in each orientation of the building or group of buildings.
According to a building group layout model, simulating and installing photovoltaic matrixes on a plurality of building monomers, combining annual meteorological parameter data of a building area to obtain annual solar radiation data information of the photovoltaic matrixes on the building monomers at different installation angle positions of the installation area, and simultaneously, obtaining annual energy generation data information of the photovoltaic matrixes by combining the annual solar radiation data information with the photovoltaic matrixes by utilizing the working parameter information of the photovoltaic matrixes; and selecting the optimal orientation layout of the building or the building group according to the maximum solar annual radiation amount of each orientation of the building or the building group. And then simulating and installing the photovoltaic matrix in a building or a building monomer, acquiring the installation angle of the photovoltaic matrix with the largest generated energy in the building or the building monomer (namely, the photovoltaic matrix receives the largest solar radiation energy in the middle year of the installation angle), installing the photovoltaic matrix surface with the largest area according to the installable area on the building or the building monomer, and calculating the annual generated power of the photovoltaic matrix surface according to the photovoltaic matrix surface with the largest area.
The photovoltaic matrix selects the optimal installation angle positions of the installation areas of the photovoltaic matrix on the building monomers through annual energy production data information of the installation areas on the building monomers;
and obtaining the maximum laying area of the photovoltaic matrix through the optimal installation angle positions of the photovoltaic matrix in the installation areas on the building monomers, forming a photovoltaic matrix surface, and calculating the annual power generation power of the photovoltaic matrix surface. That is, the operator can select the optimal layout design of the photovoltaic building according to the annual solar radiation data information received by the elevation of the building or the building group and the annual power generation power of the photovoltaic matrix surface. The purpose that the photovoltaic building designed by operators can meet actual requirements to the greatest extent is achieved.
In some possible preferred embodiments, the method of selecting an optimal mounting angle position of a mounting area of a photovoltaic matrix on a plurality of building monomers comprises:
step one: selecting a first angle to install a photovoltaic matrix according to a building monomer solar-facing surface in a building group layout model as a basic surface, and acquiring annual energy generation data of the photovoltaic matrix under the first angle installation under the annual solar energy radiation data information according to annual meteorological parameter data of a building area;
step two: taking a certain point on the foundation surface as a reference base point, adjusting a certain specific angle to obtain a second angle, installing a photovoltaic matrix according to the obtained second angle, and acquiring annual energy generation data of annual solar energy radiation data information received by the photovoltaic matrix under the installation of the second angle according to annual meteorological parameter data of a building area;
step three: repeating the second step to obtain annual energy generation data of annual solar energy radiation data information of the photovoltaic matrix installed at a plurality of angles;
step four: and obtaining the optimal installation angle positions of the installation areas of the photovoltaic matrix on the plurality of building monomers according to the annual energy generation data of the annual solar energy radiation data information of the photovoltaic matrix under the installation of the plurality of angles.
That is, in this embodiment, in order to facilitate understanding of the method of obtaining the optimum mounting angle of the photovoltaic matrix in the mounting area. Examples are given herein: and determining building group layout models, paving a photovoltaic panel or a photovoltaic matrix on each single elevation as an experimental body, taking each specific rotation angle as an installation angle adjustment interval of the photovoltaic matrix according to urban weather information of the project, respectively counting the power generation amount conditions of each interval, combining the actual conditions of a building or a building group (such as beautiful design of building elevation and the like), and finally finding out the optimal installation angles of the photovoltaic panels of all building elevation and the ground of the project. That is, in this embodiment, if the solar energy receiving surface of the photovoltaic matrix installed at the first angle matches the facing elevation angle of the building group layout model, where the solar energy radiation amount is the largest, the solar energy receiving surface is: defining a first angle as a, a specific angle as b,
thenWherein a=90°. The receiving surface of the photovoltaic matrix installed at the first angle a is consistent with the vertical surface of the final building model of the building group, which has the largest solar radiation energy, at the moment, the photovoltaic matrix installed at the first angle a is taken as a rotating base surface and can rotate clockwise or anticlockwise every 5 degrees (for example, 0-5 degrees, 5-10 degrees to 85-90 degrees).
In some possible preferred embodiments, the photovoltaic matrix comprises:
at least one photovoltaic panel is arranged, and a plurality of photovoltaic panels are connected in series and/or in parallel. And calculating the maximum paving area of the photovoltaic matrix surface according to the optimal arrangement area and the optimal inclination angle (the maximum paving area is the area with the solar radiation time reaching more than 4 hours under the condition of ensuring the beautiful appearance of the building). And meanwhile, the method is combined with a three-dimensional model of a building or a building group, so that the photovoltaic panels in the photovoltaic matrix surface are appropriately increased or decreased on the premise of economy, attractiveness and applicability of the building or the building group, and then the maximum paving area of the photovoltaic matrix surface in the installation area on the building group or the building single body is determined. The type (including color, power, transparency, etc.) and size of the solar panels in the photovoltaic matrix are selected from the software database. And calculating the power generation power of the photovoltaic matrix surface by using a scientific statistical method according to the paving areas of each direction and each inclination angle. For example, the number of blocks of the photovoltaic panel (such as power generation glass) is obtained through the obtained installation area of the photovoltaic matrix surface, then the power of the power generation glass is obtained through the type lookup of the power generation glass, and the installation capacity of the photovoltaic matrix surface is obtained through a weighted mode; then determining the types and the numbers of the inverters according to the power of the photovoltaic matrix surface constructed by the photovoltaic panel; then, according to the specifications of the inverter and the photovoltaic panel, designing a photovoltaic matrix surface, and determining the serial connection and parallel connection numbers of the photovoltaic panels; for example, the installed power of a photovoltaic panel is 10w, the project needs to set the photovoltaic matrix surface with the installed total power of 20000kw, and the series connection or the parallel connection or the series-parallel connection needs to be combined in different forms according to the model of the inverter and the calculation of software. That is, in this embodiment, the working parameters of the photovoltaic matrix include: the photovoltaic panel receives the generated power of solar radiation, the connection parameters of the photovoltaic panel on a plurality of building monomers and the working parameters of the photovoltaic inverter.
In some possible preferred embodiments, the method for calculating the generated power of the photovoltaic matrix face comprises:
obtaining available areas of installation areas on a plurality of building monomers, and obtaining the maximum paving area of the photovoltaic matrix through the optimal installation angle positions of the installation areas of the photovoltaic matrix on the building monomers;
according to the maximum paving area of the photovoltaic matrix, the installation quantity of the photovoltaic panels and the working parameters of the photovoltaic panels are obtained, the installation capacity of the photovoltaic matrix surface is obtained, and meanwhile, the annual power generation power of the photovoltaic matrix surface is calculated in a weighted mode according to the annual solar radiation data information of the photovoltaic matrix surface. The number of the pieces of the generating glass is obtained according to the obtained generating glass area, then the power of the generating glass is obtained according to the type lookup table of the generating glass, and the installation capacity of the photovoltaic matrix surface is obtained in a weighted mode.
In some possible preferred embodiments, calculating annual power generation of the photovoltaic matrix surface by weighting means comprises:
annual power generation of a photovoltaic matrix panel is defined asThen:
formula 1;
in the formula 1, the components are mixed,the annual solar energy radiation data information can be obtained according to the inquiry of the meteorological parameters of the building area of the building or the building group,
-installation capacity;
-the integrated efficiency coefficient of the photovoltaic matrix face;
wherein,2, 2
In the formula 2, the components are mixed,correction factors for the type of photovoltaic matrix facets, conversion of a photovoltaic panel in general under different illumination intensitiesThe efficiency is a fixed value, so the coefficient is generally 1;
the correction coefficient of the power reduction of the photovoltaic matrix surface caused by dust shielding and temperature rise is generally 0.9-0.95, and the value of the coefficient is related to the cleanliness of the environment, the ambient temperature, the cleaning scheme of the photovoltaic matrix surface and the like;
-a photovoltaic matrix face long-term running performance degradation correction coefficient, typically taken to be 0.95;
-photovoltaic matrix facing and tilt angle correction factors, photovoltaic matrix facing and tilt angle correction factors. When the same system has photovoltaic matrix surfaces with different directions and inclined angles, respectively calculating the generated energy according to respective conditions;
-taking 1 for the light utilization coefficient when the photovoltaic matrix face ensures that no shielding is present throughout the year; when the photovoltaic matrix surface can ensure no shielding in the period of 9-16 points of the whole year, taking 0.99 coefficient;
the availability factor of the photovoltaic matrix surface system refers to the ratio of the time affected by the shutdown and maintenance of the photovoltaic matrix surface (such as a cadmium telluride power generation glass system) to the normal use time, namely K6= [8760- (shutdown hours+maintenance hours) ]/8760, and the factor is generally more than 0.99 because the reliability of equipment components is high, generally few faults occur and the maintenance is convenient;
line loss correction coefficients are generally 0.96 to 0.99. Wire (C)The path loss comprises direct current cable loss between the photovoltaic matrix surface and the inverter, alternating current cable loss between the inverter and a power distribution cabinet, a transformer or a grid-connected metering point, and no-load and load loss of the step-up transformer;
the inverter efficiency correction factor is generally 0.95 to 0.98. The method is that the inverter converts the input direct-current electric energy into alternating-current electric energy, and the weighted evaluation efficiency is achieved under different power sections.
That is, in this embodiment, in order to ensure that the calculated power generated by the photovoltaic matrix surface is more accurate, the coefficient is corrected from the type of the photovoltaic matrix surfaceCorrection coefficient for power drop of photovoltaic matrix surface caused by dust shielding and temperature rise>Correction coefficient for long-term operation performance degradation of photovoltaic matrix surface>Photovoltaic matrix face orientation and tilt angle correction factor->Is the light utilization coefficient +.>Availability factor of photovoltaic matrix surface system>Line loss correction factor->Inverter efficiency correction factor->In the multiple dimension directions, the power generation factors influencing the photovoltaic matrix surface are considered. Ensuring the power generation function of the photovoltaic matrix surfaceAnd (5) calculating accuracy of the rate.
In some possible preferred embodiments, the method for acquiring annual solar radiation data information includes:
3
In the formula 3, the components are mixed,refers to the intensity of solar radiation from 6 to 18 points per day during a year.
Defining the amount of solar radiation on the maximum facing surface received on the final layout model of a building or group of buildings as（Kwh/m 2 ) Then:
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
In formulas 3-12:total irradiance of the sun (W/m) on inclined surface 2 );
Direct solar irradiance (W/m) on inclined surfaces 2 );
Scattered solar irradiance (W/m) on inclined surfaces 2 );
Ground-reflected solar irradiance (W/m) 2 );
Direct solar irradiance (W/m) on a surface perpendicular to the sun's rays 2 );
-an angle of incidence of the direct solar radiation, an angle (°) between the incident solar ray and the normal of the receiving surface;
-declination angle (°);
-local geographical latitude (°);
-surface inclination, which refers to the angle (°) between the surface and the horizontal;
-surface azimuth (°), for inclined surfaces facing south-normal>；
-a time angle (°), corresponding to 15 ° per hour, from noon, noon negative, noon positive, a value equal to the time from noon (h) times 15, maximum time angle at sunrise and sunset, 0 at noon;
date number in year (dimensionless);
scattered irradiance (W/m) in the horizontal plane 2 );
-ground reflectivity, average value 0.2 in engineering calculation, 0.7 when snow covers ground:
direct irradiance in the horizontal plane (W/m) 2 ),
-solar altitude (°), the angle between the direction of incidence of the sunlight at a certain altitude and the ground plane;
-the ratio of the direct solar irradiance on an inclined surface to the direct solar irradiance on a horizontal plane.
I.e. in the present embodiment by using the angle of incidence of the direct solar radiation in which the building unit or group is builtDeclination angle->Local geographical latitude->Inclination of surface->Azimuth angle of surface->Times->Reflectivity of groundSun altitude->Deriving the scattered irradiance on the horizontal plane>Direct irradiance on horizontal plane>Ratio of direct solar irradiance on inclined surface to direct solar irradiance on horizontal plane +.>Direct solar irradiance on inclined surface +.>Scattered solar irradiance on inclined surface +.>Solar irradiance of ground reflection>Direct solar irradiance on the surface perpendicular to the sun ray>Various factors are considered to obtain the solar energy radiation quantity on the solar facing surface of the building single body or the building group layout model.
Total solar energy radiant intensity on one day of the year in yearsWhen the vertical wall surface of the facing surface of the building single body or building group layout model takes the day as the time sequence section unit, the total radiation intensity of solar energy of a certain day is +.>The method comprises the following steps:i.e. in the formula,/-)>Refers to the intensity of solar radiation at a point in time from 6 to 18 points per day.
The total solar radiation intensity in this embodimentThen: />I.e. in the formula,/-)>Refers to the intensity of solar radiation in 6 to 18 points per day for a year.
In this embodiment, in order to realize the visual solar radiation condition of the meteorological parameter data information simulation building area, the solar radiation condition information parameters of building single bodies or building group building areas with different time sequence section spans can be selected to be written into the built building group layout model, and the solar radiation amounts of different time sequence sections in each azimuth direction of the building or building group layout model are calculated to obtain the optimal direction (namely, the maximum annual solar radiation amount) to the building single bodies or building groups. The actual solar irradiation intensity of the building single body or the building group construction area is simulated by simulating the solar irradiation condition information parameters written into the building single body or the building group construction area and taking the solar irradiation condition information parameters as meteorological parameters.
A second aspect of the present invention provides a photovoltaic power generation power simulation system based on annual radiation amount, which is applied to the photovoltaic power generation power simulation method based on annual radiation amount according to any one of the first aspect, the simulation system further comprising:
and the photovoltaic inverter is electrically connected with the photovoltaic matrix.
The third aspect of the present invention also provides a computer-readable medium having stored thereon a computer program, wherein the program when executed by a processor implements a photovoltaic power generation power simulation method based on annual energy of any of the first aspects.
It should be noted that, the computer readable medium described in some embodiments of the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: 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 some embodiments of the present disclosure, 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. In some embodiments of the present disclosure, however, the computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. 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: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing. A fourth aspect of the present invention provides an electronic device comprising: one or more processors; a storage device having one or more programs stored thereon; the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the annual energy based photovoltaic power simulation method as described in the first aspect.
In some embodiments, the analog system may communicate using any currently known or future developed network protocol, such as HTTP (Hyper Text Transfer Protocol ), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the internet (e.g., the internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed networks.
The computer readable medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device. The computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to.
Computer program code for carrying out operations for some embodiments of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ 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 server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
A fifth aspect of the invention provides a computer program product comprising a computer program which, when executed by a processor, implements a annual radiation based photovoltaic power simulation method as described in the first aspect.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (8)
1. The photovoltaic power generation power simulation method based on annual radiation quantity is characterized by comprising the following steps of:
building a three-dimensional model of the building group;
wherein the building group three-dimensional model comprises: a plurality of building units;
acquiring annual weather parameter data of a building group construction area, and performing simulation writing on the acquired annual weather parameter data into a building group three-dimensional model to acquire annual solar energy radiation data information of each facing elevation angle in the building group three-dimensional model;
according to the obtained annual solar energy radiation data information of each facing elevation in the three-dimensional model of the building group, selecting the facing elevation angle with the largest annual solar energy radiation received in the three-dimensional model of the building group as the final facing layout of the three-dimensional model of the building group, and generating a layout model of the building group;
according to a building group layout model, simulating and installing photovoltaic matrixes on a plurality of building monomers, combining annual meteorological parameter data of a building area to obtain annual solar radiation data information of the photovoltaic matrixes on the building monomers at different installation angle positions of the installation area, and simultaneously, obtaining annual energy generation data information of the photovoltaic matrixes by combining the annual solar radiation data information with the photovoltaic matrixes by utilizing the working parameter information of the photovoltaic matrixes;
the photovoltaic matrix selects the optimal installation angle positions of the installation areas of the photovoltaic matrix on the building monomers through annual energy production data information of the installation areas on the building monomers;
obtaining the maximum laying area of the photovoltaic matrix through the optimal installation angle positions of the photovoltaic matrix in the installation areas on the building monomers, forming a photovoltaic matrix surface, and calculating annual power generation of the photovoltaic matrix surface;
specifically, the method for selecting the optimal installation angle position of the installation area of the photovoltaic matrix on the plurality of building monomers comprises the following steps:
step one: selecting a first angle to install a photovoltaic matrix according to a building monomer solar-facing surface in a building group layout model as a basic surface, and acquiring annual energy generation data of the photovoltaic matrix under the first angle installation under the annual solar energy radiation data information according to annual meteorological parameter data of a building area;
step two: taking a certain point on the foundation surface as a reference base point, adjusting a certain specific angle to obtain a second angle, installing a photovoltaic matrix according to the obtained second angle, and acquiring annual energy generation data of annual solar energy radiation data information received by the photovoltaic matrix under the installation of the second angle according to annual meteorological parameter data of a building area;
step three: repeating the second step to obtain annual energy generation data of annual solar energy radiation data information of the photovoltaic matrix installed at a plurality of angles;
step four: according to annual energy generation data of annual solar energy radiation data information received by the obtained photovoltaic matrix installed at a plurality of angles, and simultaneously combining actual conditions of building monomers, obtaining optimal installation angle positions of installation areas of the photovoltaic matrix on the plurality of building monomers;
if the solar energy receiving surface of the photovoltaic matrix installed at the first angle is consistent with the orientation elevation angle of the maximum solar energy radiation quantity of the receiving year of the building group layout model, the following steps are performed:
defining a first angle as a and a specific angle as b, thenWherein a=90°.
2. A photovoltaic power generation power simulation method based on annual radiation amount according to claim 1, wherein the photovoltaic matrix comprises:
at least one photovoltaic panel is arranged, and a plurality of photovoltaic panels are connected in series and/or in parallel.
3. The annual radiation amount-based photovoltaic power simulation method according to claim 2, wherein the self-operating parameters of the photovoltaic matrix include:
the photovoltaic panel receives the generated power of solar radiation, the connection parameters of the photovoltaic panel on a plurality of building monomers and the working parameters of the photovoltaic inverter.
4. A method of modeling annual energy based photovoltaic power generation as claimed in claim 3 wherein the method of calculating the power generated by the photovoltaic matrix surface comprises:
obtaining available areas of installation areas on a plurality of building monomers, and obtaining the maximum paving area of the photovoltaic matrix through the optimal installation angle positions of the installation areas of the photovoltaic matrix on the building monomers;
according to the maximum paving area of the photovoltaic matrix, the installation quantity of the photovoltaic panels and the working parameters of the photovoltaic panels are obtained, the installation capacity of the photovoltaic matrix surface is obtained, and meanwhile, the annual power generation power of the photovoltaic matrix surface is calculated in a weighted mode according to the annual solar radiation data information of the photovoltaic matrix surface.
5. The method for simulating annual energy of photovoltaic power generation based on annual energy of claim 4, wherein calculating annual energy of the photovoltaic matrix surface by weighting comprises:
annual power generation of a photovoltaic matrix panel is defined asThen:
formula 1;
in the formula 1, the components are mixed,-year solar energy radiation data information,
-installation capacity;
-the integrated efficiency coefficient of the photovoltaic matrix face;
wherein,2, 2
In the formula 2, the components are mixed,-modifying coefficients for the photovoltaic matrix face type;
-dust shielding and temperature rise cause a photovoltaic matrix face power reduction correction factor;
-a photovoltaic matrix face long-term running performance degradation correction coefficient;
-photovoltaic matrix face-to-tilt angle correction factor;
-a light utilization factor;
-photovoltaic matrix face system availability factor;
-line loss correction coefficients;
-inverter efficiency correction factor.
6. The photovoltaic power generation power simulation method based on annual energy of radiation according to claim 5, wherein the method for acquiring annual solar energy data information comprises the following steps:the number of the components in the liquid crystal display is 3,
in the formula 3, the components are mixed,refers to the intensity of solar radiation from 6 to 18 points per day during a year.
7. A photovoltaic power generation power simulation system based on annual radiation amount, characterized by being applied to a photovoltaic power generation power simulation method based on annual radiation amount as defined in any one of claims 1 to 6, the simulation system further comprising:
and the photovoltaic inverter is electrically connected with the photovoltaic matrix.
8. A computer-readable medium, having a computer program stored thereon,
wherein the program when executed by the processor implements a photovoltaic power generation power simulation method based on annual energy of radiation as defined in any one of claims 1 to 6.
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