CN115169087A - Household photovoltaic power station scheme generation method and corresponding intelligent design platform - Google Patents
Household photovoltaic power station scheme generation method and corresponding intelligent design platform Download PDFInfo
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Abstract
The embodiment of the application provides a method for generating a household photovoltaic power station scheme and a corresponding intelligent design platform, wherein the method comprises the following steps: acquiring meteorological/optical resource data of the position of the photovoltaic power station of the user to be designed, simulating and calculating based on the meteorological/optical resource data to obtain a corresponding technical scheme and an economic scheme, and generating the corresponding photovoltaic power station scheme based on the technical scheme and the economic scheme. The scheme has the functions of intelligent analysis of meteorological resources and illumination resources, intelligent design of a household photovoltaic electrical system, calculation of generated energy, system efficiency/loss calculation at all levels, investment and income analysis, energy conservation and emission reduction analysis and calculation, and realizes the standardized operation of scheme design through an integrated intelligent platform, thereby reducing the technical difficulty of household photovoltaic scheme design, lightening the burden of technicians and improving the working efficiency and quality.
Description
Technical Field
The application relates to the technical field of photovoltaic, in particular to a household photovoltaic power station scheme generation method and a corresponding intelligent design platform.
Background
With the increasing development of the distributed photovoltaic industry and the technical field thereof and the rapid increase of the scale of the household photovoltaic industry, the number of household photovoltaic projects is increased in a large scale, and the application scene is gradually complicated; meanwhile, as the household photovoltaic power station has the characteristics of small system, diversified scene, flexible operation mode and the like, the design requirement of the whole technical scheme meets the requirements of accuracy, rapidness and diversification on a plurality of professional directions such as meteorological resource analysis, power generation amount calculation, electrical system, equipment material statistics, cost/income analysis, flexible scheme adjustment and the like, and the owner of the household photovoltaic project generally does not have photovoltaic professional knowledge, and the technology of a developer or an EPC (Engineering technical component management, one of project general contract modes) side or a salesperson cannot independently complete the whole technical scheme related to multiple professions.
In the prior art, when a household photovoltaic power station scheme is designed, data collection is generally carried out on a target project, wherein the target project comprises meteorological and geographic data, construction site data and equipment parameter data of the project; carrying out overall technical scheme manual design on the target project according to the collected data; performing professional calculation and scheme compilation by using different tool software according to a design scheme; and summarizing and correcting the design scheme and the calculation result. In other words. The scheme in the prior art needs to depend on multi-professional cooperation, manual design and compilation are completed, and meanwhile, multiple professional software or tool type software needs to be used, so that the scientificity and the rationality of the whole technical scheme are difficult to realize unification and standardization, and meanwhile, the iterative optimization of the scheme per se depends on the personal experience of an engineer, the working efficiency and other objective factors for limitation.
Disclosure of Invention
The purpose of this application is to solve at least one of the above technical defects, and the technical solution provided by this application embodiment is as follows:
in a first aspect, an embodiment of the present application provides a method for generating a household photovoltaic power station scenario, including:
acquiring meteorological/optical resource data of the position of a photovoltaic power station of a user to be designed;
simulating based on the meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and performing simulation calculation based on the position of the photovoltaic power station for the user to be designed to obtain a terrain influence parameter;
determining an inverter matching scheme, a string grouping scheme and a system efficiency analysis scheme based on the component arrangement model, and determining corresponding equipment parameters and conductor parameters based on the electrical wiring model;
acquiring the generated energy, the energy-saving emission-reducing capacity and the investment yield of the photovoltaic power station for the user to be designed in a preset period based on the component arrangement model, the terrain influence parameters, the inverter matching scheme, the string combination scheme, the system efficiency analysis scheme, the equipment parameters and the conductor parameters;
and taking the component arrangement model, the electrical wiring model, the inverter matching scheme, the string grouping scheme, the equipment parameters, the conductor parameters, the power generation capacity and the energy-saving emission reduction capacity as technical schemes, taking the investment earning rate as an economic scheme, and generating a corresponding household photovoltaic power station scheme based on the technical scheme and the economic scheme.
In an optional embodiment of the present application, the acquiring weather/light resource data of a location where a photovoltaic power plant is located for a user to be designed includes:
acquiring satellite weather/light resource data of the position, and acquiring real-time weather/light resource data reported by a user or weather/light resource data with a long historical accumulation time sequence;
and fusing the satellite weather/light resource data and the real-time weather/light resource data or the weather/light resource data with long time sequence of historical accumulation to obtain the weather/light resource data.
In an alternative embodiment of the present application, the structure of the mounting area includes the slope and orientation of the mounting area;
the simulating is carried out based on the meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and the simulating comprises the following steps:
dividing the installation area into at least one unit subarea and at least one unit area based on the gradient and the orientation of the installation area, and determining the installation inclination angle and the azimuth angle of the photovoltaic module in each unit subarea to obtain a corresponding module arrangement model;
and determining the wiring mode from each photovoltaic assembly to the grid connection point to obtain a corresponding electric wiring model.
In an optional embodiment of the present application, the obtaining a terrain influence parameter by performing simulation calculation based on a position of the photovoltaic power station for the user to be designed includes:
and acquiring the surrounding horizon information of the position of the photovoltaic power station of the user to be designed, and performing distant shadow shielding calculation to obtain the terrain influence parameters.
In an optional embodiment of the present application, the determining an inverter matching scheme, a string grouping scheme, and a system efficiency analysis scheme based on the component arrangement model includes:
determining an inverter matching scheme and a string combination scheme by combining with a preset national standard requirement;
based on the component arrangement model, obtaining dust shielding loss, diffuse reflection coefficient, in-string/inter-string mismatch coefficient and system unavailability, and based on the dust shielding loss, the diffuse reflection coefficient, in-string/inter-string mismatch coefficient and the system unavailability, obtaining system loss coefficients such as effective irradiation loss coefficient, temperature loss coefficient, direct current line loss coefficient, inverter actual efficiency and alternating current line loss through calculation, and further obtaining the system efficiency analysis scheme.
In a second aspect, an embodiment of the present application provides a household photovoltaic power station intelligent design platform, including:
the system comprises a meteorological resource intelligent analysis unit, a data acquisition unit and a data processing unit, wherein the meteorological resource intelligent analysis unit is used for acquiring meteorological/optical resource data of the position of a photovoltaic power station of a user to be designed;
the household photovoltaic power station simulation design unit is used for simulating based on the meteorological/optical resource data and the structure of the installation area of the household photovoltaic power station to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and performing simulation calculation based on the position of the household photovoltaic power station to be designed to obtain a terrain influence parameter; determining an inverter matching scheme, a string grouping scheme and a system efficiency analysis scheme based on the component arrangement model, and determining corresponding equipment parameters and conductor parameters based on the electrical wiring model;
the household photovoltaic data calculation unit is used for acquiring the generated energy, the energy-saving emission reduction amount and the investment yield of the household photovoltaic power station to be designed in a preset period based on the component arrangement model, the terrain influence parameters, the inverter matching scheme, the string combination scheme, the system efficiency analysis scheme, the equipment parameters and the conductor parameters; and taking the component arrangement model, the electrical wiring model, the inverter matching scheme, the string grouping scheme, the equipment parameters, the conductor parameters, the power generation capacity and the energy-saving emission reduction capacity as technical schemes, taking the investment earning rate as an economic scheme, and generating a corresponding household photovoltaic power station scheme based on the technical scheme and the economic scheme.
In an optional embodiment of the present application, the meteorological resources intelligent analysis unit includes: the weather/light resource database module and the weather/light resource intelligent fusion analysis module:
the weather/light resource database module is used for acquiring the satellite weather/light resource data of the position and acquiring real-time weather/light resource data reported by a user or weather/light resource data with a long time sequence accumulated historically;
the weather/light resource intelligent fusion analysis module is used for fusing the satellite weather/light resource data and the real-time weather/light resource data or the weather/light resource data with long time sequence of historical accumulation to obtain the weather/light resource data.
In an alternative embodiment of the present application, the configuration of the mounting area includes the slope and orientation of the mounting area;
the household photovoltaic power station simulation design unit comprises: building and photovoltaic installation area modeling module and family are with photovoltaic electrical system modeling module, wherein:
the building and photovoltaic installation area modeling module is used for dividing the installation area into at least one unit sub-area and at least one unit area based on the gradient and the orientation of the installation area, and determining the installation inclination angle and the azimuth angle of a photovoltaic assembly in each unit sub-area to obtain a corresponding assembly arrangement model;
the household photovoltaic electrical system modeling module is used for determining the wiring mode from each photovoltaic assembly to a grid-connected point to obtain a corresponding electrical wiring model.
In an optional embodiment of the present application, the user photovoltaic power plant simulation design unit further includes a terrain influence modeling analysis module, configured to:
and acquiring the information of the surrounding horizon of the position of the photovoltaic power station of the user to be designed, and performing remote shadow shielding calculation to obtain the terrain influence parameters and the model.
In an optional embodiment of the present application, the photovoltaic power plant simulation design unit for the user further includes: component-inverter group string and matching design module and photovoltaic system efficiency design module, wherein:
the component-inverter string and matching design module is used for determining an inverter matching scheme and a string combining scheme by combining with a preset national standard requirement;
photovoltaic system efficiency design module is used for based on the module model of arranging, acquires dust and shelters from loss, diffuse reflection coefficient, in the cluster/mismatch coefficient between the cluster, the system is unavailable rate, and based on the dust shelters from the loss diffuse reflection coefficient, in the cluster/mismatch coefficient between the cluster the system is unavailable rate to through calculating system loss coefficients such as the effective irradiation loss coefficient, temperature loss coefficient, direct current line loss coefficient, dc-to-ac converter actual efficiency, alternating current line loss, and then obtain system efficiency analysis scheme.
In a third aspect, an embodiment of the present application provides an electronic device, including a memory and a processor;
the memory has a computer program stored therein;
a processor configured to execute a computer program to implement the method provided in the embodiment of the first aspect or any optional embodiment of the first aspect.
In a fourth aspect, this application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method provided in the embodiments of the first aspect or any optional embodiment of the first aspect.
The technical scheme provided by the application brings the beneficial effects that:
the system has the functions of intelligent analysis of meteorological resources and illumination resources, intelligent design of a household photovoltaic electrical system, power generation calculation, system efficiency/loss calculation at all levels, investment and income analysis, energy conservation and emission reduction analysis and calculation, and realizes the standardized operation of scheme design through an integrated intelligent platform, thereby reducing the technical difficulty of household photovoltaic scheme design, lightening the burden of technicians and improving the working efficiency and quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.
Fig. 1 is a schematic flow chart of a method for generating a photovoltaic power plant plan for a user according to an embodiment of the present application;
FIG. 2 is an overall flowchart of a scheme for generating a household photovoltaic power plant by using a household photovoltaic power plant intelligent design platform in an example of the embodiment of the present application;
fig. 3 is an overall architecture diagram of a household photovoltaic power station intelligent design platform provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
The terms referred to in this application will first be introduced and explained:
a photovoltaic module: a minimally-indivisible solar cell assembly having an encapsulated and inter-coupled solar cell module capable of providing a direct current output alone.
String forming: in a photovoltaic power generation system, a plurality of photovoltaic modules are connected in series to form a circuit unit with a certain direct current output.
A unit area: a photovoltaic module installation unit area composed of one or a plurality of unit sub-areas connected with each other can be generally referred to as a large building roof with different roofs at multiple angles; the installation inclination angle and the azimuth angle of the photovoltaic modules contained in different unit subregions in the region can be different.
A unit sub-region: the installation inclination angle and the azimuth angle of all photovoltaic modules in the minimum unit area of the photovoltaic module installation are kept consistent.
Fig. 1 is a schematic flow chart of a method for generating a user photovoltaic power plant scenario provided in an embodiment of the present application, and as shown in fig. 1, the method may include:
and S101, acquiring meteorological/optical resource data of the position of the photovoltaic power station of the user to be designed.
The meteorological/light resource data may include, among other things, total annual radiance, average peak sunshine hours per month, monthly, daily, hourly total horizontal plane horizontal radiance (GHI), normal direct radiance (DNI), and horizontal plane scattered radiance (DHI).
And S102, simulating based on meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and performing simulation calculation based on the position of the photovoltaic power station for the user to be designed to obtain a terrain influence parameter.
The structure of the installation area includes the slope, the orientation, and the like of the installation area, for example, if the installation area is a slope roof of a certain building, the structure of the corresponding installation area is the slope, the orientation, and the like of the slope roof.
The photovoltaic power station can be used for indicating corresponding terrain data.
Specifically, simulation modeling is performed based on meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed, so that a component arrangement model suitable for the installation area can be obtained, and a suitable electrical wiring model is further configured according to the component arrangement model. And (3) performing simulation modeling based on the terrain data corresponding to the position indication of the photovoltaic power station of the user to be designed, and obtaining corresponding terrain influence parameters, namely the influence of the terrain (or the horizon) on the position and the irradiation of the sun.
And S103, determining an inverter matching scheme, a string grouping scheme and a system efficiency analysis scheme based on the component arrangement model, and determining corresponding equipment parameters and conductor parameters based on the electrical wiring model.
Specifically, after the component arrangement model is determined through simulation, an inverter matching scheme, a string grouping scheme, a system efficiency analysis scheme and the like need to be further determined, and after the electrical wiring model is determined, model selection needs to be further performed, namely, corresponding equipment parameters and conductor parameters are determined.
And step S104, acquiring the generated energy, the energy-saving emission reduction amount and the investment yield of the household photovoltaic power station to be designed in a preset period based on the component arrangement model, the terrain influence parameter, the inverter matching scheme, the string scheme, the system efficiency analysis scheme, the equipment parameter and the conductor parameter.
Specifically, after the above steps are completed, the configuration of the technical solution is completed, and the calculation of the economic solution may be performed in this step.
And S105, taking the component arrangement model, the electric wiring model, the inverter matching scheme, the string combination scheme, the equipment parameters, the conductor parameters, the generating capacity and the energy-saving emission reduction capacity as technical schemes, taking the investment earning rate as an economic scheme, and generating a corresponding household photovoltaic power station scheme based on the technical scheme and the economic scheme.
Specifically, the technical scheme and the economic scheme obtained in the steps are output together to serve as a corresponding household photovoltaic power station scheme.
It should be noted that the method for generating the user photovoltaic power station scheme provided by the embodiment of the present application can be implemented by the user photovoltaic power station intelligent design platform provided by the embodiment of the present application. Specifically, the intelligent design platform may include a meteorological resource intelligent analysis unit, a household photovoltaic power station simulation design unit (which may be divided into a household photovoltaic power station simulation unit and a household photovoltaic power station intelligent design unit), and a household photovoltaic data calculation unit.
As shown in fig. 2, the process of obtaining a scenario for a user of a photovoltaic power plant may include: the meteorological resource intelligent analysis unit carries out optical resource analysis on a target power station, fusion calculation is carried out on the satellite and the actually measured optical data in the area through various algorithms, and a fusion result is used as optical resource input data of the target power station and is led into the power station simulation unit; the household photovoltaic power station simulation unit imports light resource data, performs light resource and weather simulation, terrain (horizon) simulation and system and equipment electrical model simulation on a target power station, and imports the result into the intelligent design unit; the household photovoltaic power station intelligent design unit imports a simulation data result, intelligently designs the household photovoltaic power station to generate a complete design scheme, and imports the scheme and parameters into the data calculation unit; the data calculation unit imports simulation data, equipment parameters and a system design scheme, carries out simulation calculation on the whole system of the household photovoltaic power station, and exports a standard design file and a calculation result file of a power station model.
It can be understood that the unit division and the work flow of the household photovoltaic power station intelligent design platform provided by the embodiment of the application can be different, but the overall flow generated by the household photovoltaic power station of the household photovoltaic power station is consistent with the household photovoltaic power station scheme generation method provided by the embodiment of the application.
The scheme provided by the application has the functions of intelligent analysis of meteorological resources and illumination resources, intelligent design of a household photovoltaic electrical system, calculation of generated energy, system efficiency/loss calculation at all levels, investment and income analysis, energy conservation and emission reduction analysis and calculation, and realizes the standardized operation of scheme design through an integrated intelligent platform, so that the technical difficulty of household photovoltaic scheme design is reduced, the burden of technicians is reduced, and the working efficiency and quality are improved.
The technical scheme of the application is explained in detail through the function realization of each unit and module of the household photovoltaic power station intelligent design platform provided by the application.
In an optional embodiment of the present application, the meteorological resources intelligent analysis unit includes: the weather/light resource database module and the weather/light resource intelligent fusion analysis module:
the weather/light resource database module is used for acquiring satellite weather/light resource data of the position, and acquiring real-time weather/light resource data reported by a user or weather/light resource data of a historical accumulation long time sequence;
the weather/light resource intelligent fusion analysis module is used for fusing the satellite weather/light resource data and the real-time weather/light resource data or the weather/light resource data with long time sequence of historical accumulation to obtain the weather/light resource data.
Specifically, a national weather/light resource database module (namely a weather/light resource database module) is established to provide weather/light resource satellite data and actual measurement data information of project sites; the information comprises data and calculation results of total irradiation of a horizontal plane (GHI), normal direct irradiation (DNI), scattering irradiation of the horizontal plane (DHI), total irradiation of an inclined Plane (POA) and photovoltaic maximum power inclination angle/azimuth angle (TILT).
Configure meteorological/light resource intelligence and fuse analysis module, include:
(1) Extracting weather/light resource satellite data of a project place (namely the position of a photovoltaic power station of a user to be designed);
(2) Providing a measured data input template, the template information comprising: time information (including year, month, day, hour); light resource information (including total horizontal plane irradiation (GHI), normal direct irradiation (DNI), horizontal plane scattered irradiation (DHI)); meteorological information (including dry-bulb temperature, atmospheric pressure, wind speed) for uploading measured meteorological/optical resource data of project sites;
(3) And providing an intelligent algorithm module, carrying out analysis comparison and fusion correction calculation on the satellite and the measured data in the area, and importing the analysis calculation result as final project resource data into a power station simulation unit and a project data calculation unit.
In an alternative embodiment of the present application, the configuration of the mounting area includes the slope and orientation of the mounting area;
the photovoltaic power plant simulation design unit for the user includes: building and photovoltaic installation area modeling module and family are with photovoltaic electrical system modeling module, wherein:
the building and photovoltaic installation area modeling module is used for dividing an installation area into at least one unit sub-area and at least one unit area based on the gradient and the orientation of the installation area, and determining the installation inclination angle and the azimuth angle of a photovoltaic assembly in each unit sub-area to obtain a corresponding assembly arrangement model;
the household photovoltaic electrical system modeling module is used for determining the wiring mode from each photovoltaic assembly to the grid-connected point to obtain a corresponding electrical wiring model.
Further, the household photovoltaic power station simulation design unit further comprises a terrain influence modeling analysis module used for:
and acquiring surrounding horizon information of the position of the photovoltaic power station of the user to be designed, and performing distant shadow shielding calculation to obtain the terrain influence parameters and the model. Specifically, configuring a household photovoltaic power station simulation unit to realize modeling of a household photovoltaic system may include:
(1) Configuring a photovoltaic power generation equipment database and a parameter model base for a user, namely establishing a photovoltaic module and inverter equipment database to provide parameter information of the components and the inverters required by subsequent calculation, wherein the parameter information comprises the following steps: all electrical parameters (e.g., 22) provided by the component manufacturer, as well as model, weight, size, material, type, attenuation coefficient; all the electrical parameters (for example, 23) provided by the inverter manufacturer, as well as the model, weight, size, protection function.
(2) The method comprises the steps of configuring a building and a photovoltaic installation area modeling module, dividing a household photovoltaic installation area into a unit area and a unit sub-area, and configuring a household photovoltaic system in the unit area/the unit sub-area one by one according to actual conditions such as gradient and orientation of different installation areas, wherein the household photovoltaic system comprises photovoltaic module type selection, inverter type selection, module installation inclination angle, azimuth angle, installed capacity, string scheme, temperature model, cable length of each string and bus cable length.
(3) The simulation analysis of the peripheral horizon is configured, and the horizon outline of the periphery (namely the periphery of the position of the household photovoltaic power station to be designed) and the radiation loss and the electric quantity loss caused by the horizon outline are calculated by inputting the simulation radius, the displacement and the step length.
In an optional embodiment of the present application, the photovoltaic power plant simulation design unit for the user further includes: component-inverter group string and matching design module and photovoltaic system efficiency design module, wherein:
the component-inverter string and matching design module is used for determining an inverter matching scheme and a string combining scheme by combining with a preset national standard requirement;
photovoltaic system efficiency design module is used for based on the module model of arranging, acquires in the dust shelters from loss, diffuse reflection coefficient, the cluster/mismatch coefficient between the cluster, the system can't utilize the rate, and based on the dust shelters from the loss diffuse reflection coefficient, the cluster/mismatch coefficient between the cluster the system can't utilize the rate to through calculating acquire system loss coefficients such as effective irradiation loss coefficient, temperature loss coefficient, direct current line loss coefficient, inverter actual efficiency, alternating current line loss, and then obtain system efficiency analysis scheme.
Specifically, configuring the household photovoltaic intelligent design unit may include:
(1) And configuring a photovoltaic system efficiency design module, namely configuring photovoltaic system efficiency parameters including dust shielding loss, diffuse reflection coefficients, in-string/inter-string mismatch and system unavailability, calculating system losses such as effective irradiation loss, temperature loss, direct current line loss, inverter actual efficiency and alternating current line loss, and finally obtaining a total system efficiency value.
(2) Configuring a component-inverter string and matching design module, analyzing and judging an optimal matching and string combining scheme of the component-inverter by combining national standard (GB 50797-2012), wherein the string combining scheme has a calculation formula as follows:
wherein, V dcmax Inputting the maximum voltage of the direct current side for the inverter; v OC Is the photovoltaic module open circuit voltage; v pm The working voltage of the photovoltaic module is set; v mpppt max The maximum value of the MPPT voltage of the inverter is obtained; v mppt min The minimum value of the MPPT voltage of the inverter is obtained; t is the limit low temperature of the photovoltaic module under the working condition; t' is the limit high temperature of the photovoltaic module under the working condition; k is v The open-circuit voltage temperature coefficient of the photovoltaic module; k is v ' is the operating voltage temperature coefficient of the photovoltaic module; and N is the serial number of the battery components (N is an integer downwards).
After the string combination scheme result is calculated, the module is used for carrying out inverter over-distribution coefficient check, over-distribution range check and inverter rated direct current input voltage check, and the usability of the calculation result is guaranteed.
(3) And a photovoltaic equipment type selection and verification module is configured, and the parameter selection and verification functions of the photovoltaic cable and the breaker equipment are calculated by inputting the length of the photovoltaic cable, so that the parameters such as the section of the photovoltaic cable and the rated current of the breaker are calculated, and the verification function is provided.
Further, the photovoltaic data calculation unit for configuration may include:
according to the terrain modeling analysis result, carrying out horizon line influence and power generation reduction calculation;
calculating equipment parameters and conductor sections according to the modeling result of the wiring scheme of the electrical system;
according to the photovoltaic area arrangement mode, the installation mode and various analysis results of the system efficiency, the system efficiency and various reduction calculations are carried out;
calculating the annual and hourly power generation quantity of the household photovoltaic system from the first year to 25 years by combining calculation results of installed capacity, radiant quantity, terrain influence, electrical equipment parameters, wiring modes and system efficiency;
performing energy-saving emission-reduction calculation according to the calculation result of the generated energy in the first year to 25 years, wherein the energy-saving emission-reduction calculation comprises the emission of standard coal, carbon dust, carbon dioxide, sulfur dioxide and nitrogen oxides;
and the investment/income accounting module automatically calculates the total investment and the 25-year annual profit rate of the project according to the installed capacity, the generated energy and the investment/income modeling result by inputting unit price, bidirectional electricity price and subsidy price of equipment.
In summary, when a user uses the household photovoltaic power station intelligent design platform provided by the embodiment of the present application, functions and data processing flows of each unit are as shown in fig. 3. Specifically, a user first creates a household photovoltaic power generation system (i.e., a household photovoltaic power station), and if a new project is created, relevant data (position coordinates of a location where the user is located, a poster height, a diffuse reflection value, and the like) needs to be input. And then, the meteorological resources can only analyze and fuse the corresponding data by the analysis unit, and the result is exported and input to the power station simulation modeling unit. And the simulation modeling unit performs photovoltaic region simulation modeling and electrical system simulation modeling. And the power station intelligent design unit adjusts system parameters based on the simulation modeling result. And finally, calculating various economic data by a data calculation unit, generating a household photovoltaic power station scheme, and outputting the household photovoltaic power station scheme in the forms of reports, drawings, charts and the like.
Through using this photovoltaic power plant intelligent design platform for family to carry out the design of photovoltaic power plant for family, can bring following beneficial effect:
providing complete and detailed light resource, meteorological resource and equipment database for users, and facilitating the simulation, analysis and call of users in the modeling/designing process
The system provides one-stop design and generation functions for completing the full-professional, full-period and diversified schemes of the household photovoltaic system, reduces the technical difficulty of the household photovoltaic scheme design, relieves the burden of technicians, and improves the working efficiency and quality.
Reasonable control and accuracy control of the design scheme and rapid and efficient optimization and iteration of the scheme are achieved.
Referring now to fig. 4, shown is a schematic diagram of an electronic device (e.g., a terminal device or a server that performs the method shown in fig. 1) 400 suitable for implementing embodiments of the present application. The electronic device in the embodiments of the present application may include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a vehicle terminal (e.g., a car navigation terminal), a wearable device, and the like, and a fixed terminal such as a digital TV, a desktop computer, and the like. The electronic device shown in fig. 4 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
The electronic device includes: a memory for storing a program for executing the method of the above-mentioned method embodiments and a processor; the processor is configured to execute programs stored in the memory. The processor may be referred to as a processing device 401 described below, and the memory may include at least one of a Read Only Memory (ROM) 402, a Random Access Memory (RAM) 403, and a storage device 408, which are described below:
as shown in fig. 4, electronic device 400 may include a processing device (e.g., central processing unit, graphics processor, etc.) 401 that may perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM) 402 or a program loaded from a storage device 408 into a Random Access Memory (RAM) 403. In the RAM403, various programs and data necessary for the operation of the electronic apparatus 400 are also stored. The processing device 401, the ROM 402, and the RAM403 are connected to each other via a bus 404. An input/output (I/O) interface 405 is also connected to bus 404.
Generally, the following devices may be connected to the I/O interface 405: input devices 406 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; an output device 407 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage devices 408 including, for example, magnetic tape, hard disk, etc.; and a communication device 409. The communication means 409 may allow the electronic device 400 to communicate wirelessly or by wire with other devices to exchange data. While fig. 4 illustrates an electronic device having various means, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may alternatively be implemented or provided.
In particular, according to embodiments of the application, the processes described above with reference to the flow diagrams may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program carried on a non-transitory computer readable medium, the computer program containing program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication device 409, or from the storage device 408, or from the ROM 402. The computer program, when executed by the processing device 401, performs the above-described functions defined in the methods of the embodiments of the present application.
It should be noted that the computer readable storage medium mentioned above in the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples 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 the present application, 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 this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may 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, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
In some embodiments, the clients, servers may communicate using any currently known or future developed network Protocol, such as HTTP (HyperText 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 network.
The computer readable medium may be embodied in the electronic device; or may be separate and not 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:
acquiring meteorological/optical resource data of the position of a photovoltaic power station of a user to be designed; simulating based on the meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and performing simulation calculation based on the position of the photovoltaic power station for the user to be designed to obtain a terrain influence parameter; determining an inverter matching scheme, a string grouping scheme and a system efficiency analysis scheme based on the component arrangement model, and determining corresponding equipment parameters and conductor parameters based on the electrical wiring model; acquiring the generated energy, the energy-saving emission-reducing capacity and the investment yield of the photovoltaic power station for the user to be designed in a preset period based on the component arrangement model, the terrain influence parameters, the inverter matching scheme, the string combination scheme, the system efficiency analysis scheme, the equipment parameters and the conductor parameters; and taking the component arrangement model, the electrical wiring model, the inverter matching scheme, the string grouping scheme, the equipment parameters, the conductor parameters, the power generation capacity and the energy-saving emission reduction capacity as technical schemes, taking the investment earning rate as an economic scheme, and generating a corresponding household photovoltaic power station scheme based on the technical scheme and the economic scheme.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including but not limited to 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 type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart 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 application. 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 modules or units described in the embodiments of the present application may be implemented by software or hardware. Here, the name of a module or a unit does not constitute a limitation to the unit itself in some cases, and for example, the first position information acquisition module may also be described as a "module that acquires first position information".
The functions described herein above 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: field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems on a chip (SOCs), complex Programmable Logic Devices (CPLDs), and the like.
In the context of this application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on 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 compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and embellishments can be made without departing from the principle of the present invention, and these should also be construed as the scope of the present invention.
Claims (10)
1. A household photovoltaic power station scheme generation method is characterized by comprising the following steps:
acquiring meteorological/optical resource data of the position of a photovoltaic power station of a user to be designed;
simulating based on the meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and performing simulation calculation based on the position of the photovoltaic power station for the user to be designed to obtain a terrain influence parameter;
determining an inverter matching scheme, a string grouping scheme and a system efficiency analysis scheme based on the component arrangement model, and determining corresponding equipment parameters and conductor parameters based on the electrical wiring model;
acquiring the generated energy, the energy-saving emission reduction amount and the investment earning rate of the photovoltaic power station for the user to be designed in a preset period based on the component arrangement model, the terrain influence parameters, the inverter matching scheme, the string scheme, the system efficiency analysis scheme, the equipment parameters and the conductor parameters;
and taking the component arrangement model, the electrical wiring model, the inverter matching scheme, the string grouping scheme, the equipment parameters, the conductor parameters, the power generation capacity and the energy-saving emission reduction capacity as technical schemes, taking the investment earning rate as an economic scheme, and generating a corresponding household photovoltaic power station scheme based on the technical scheme and the economic scheme.
2. The method according to claim 1, wherein the obtaining of weather/light resource data of the location of the photovoltaic power plant for the user to be designed comprises:
acquiring the satellite weather/light resource data of the position, and acquiring real-time weather/light resource data reported by a user or weather/light resource data with a long time sequence accumulated historically;
and fusing the satellite weather/light resource data and the real-time weather/light resource data or the weather/light resource data with long time sequence of historical accumulation to obtain the weather/light resource data.
3. The method of claim 1, wherein the configuration of the mounting area includes a slope and an orientation of the mounting area;
the simulating is carried out based on the meteorological/optical resource data and the structure of the installation area of the photovoltaic power station for the user to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and the simulating method comprises the following steps:
dividing the installation area into at least one unit sub-area and at least one unit area based on the gradient and the orientation of the installation area, and determining the installation inclination angle and the azimuth angle of the photovoltaic module in each unit sub-area to obtain a corresponding module arrangement model;
and determining the wiring mode from each photovoltaic assembly to the grid connection point to obtain a corresponding electric wiring model.
4. The method according to claim 1, wherein the obtaining of the terrain influence parameter based on the position of the photovoltaic power station for the user to be designed by performing simulation calculation comprises:
and acquiring the information of the surrounding horizon of the position of the photovoltaic power station of the user to be designed, and performing remote shadow shielding calculation to obtain the terrain influence parameters.
5. The method of claim 1, wherein determining an inverter matching scheme, a string scheme, and a system efficiency analysis scheme based on the component placement model comprises:
determining an inverter matching scheme and a string grouping scheme by combining preset national standard requirements;
based on the component arrangement model, obtaining dust shielding loss, diffuse reflection coefficient, in-string/inter-string mismatch coefficient and system unavailability, and based on the dust shielding loss, the diffuse reflection coefficient, in-string/inter-string mismatch coefficient and the system unavailability, obtaining system loss coefficients such as effective irradiation loss coefficient, temperature loss coefficient, direct current line loss coefficient, inverter actual efficiency and alternating current line loss through calculation, and further obtaining the system efficiency analysis scheme.
6. The utility model provides a photovoltaic power plant intelligent design platform is used at family which characterized in that includes:
the system comprises a meteorological resource intelligent analysis unit, a data acquisition unit and a data processing unit, wherein the meteorological resource intelligent analysis unit is used for acquiring meteorological/optical resource data of the position of a photovoltaic power station of a user to be designed;
the household photovoltaic power station simulation design unit is used for simulating based on the meteorological/optical resource data and the structure of the installation area of the household photovoltaic power station to be designed to obtain a corresponding component arrangement model and an electrical wiring model, and performing simulation calculation based on the position of the household photovoltaic power station to be designed to obtain a terrain influence parameter; determining an inverter matching scheme, a string grouping scheme and a system efficiency analysis scheme based on the component arrangement model, and determining corresponding equipment parameters and conductor parameters based on the electrical wiring model;
the household photovoltaic data calculation unit is used for acquiring the generated energy, the energy-saving emission reduction amount and the investment yield of the household photovoltaic power station to be designed in a preset period based on the component arrangement model, the terrain influence parameters, the inverter matching scheme, the string combination scheme, the system efficiency analysis scheme, the equipment parameters and the conductor parameters; and taking the component arrangement model, the electrical wiring model, the inverter matching scheme, the string grouping scheme, the equipment parameters, the conductor parameters, the power generation capacity and the energy-saving emission reduction capacity as technical schemes, taking the investment earning rate as an economic scheme, and generating a corresponding household photovoltaic power station scheme based on the technical scheme and the economic scheme.
7. The intelligent design platform of claim 6, wherein the meteorological resources intelligent analysis unit comprises: the system comprises a weather/light resource database module and a weather/light resource intelligent fusion analysis module:
the weather/light resource database module is used for acquiring the satellite weather/light resource data of the position and acquiring real-time weather/light resource data reported by a user or weather/light resource data with a long time sequence accumulated historically;
the weather/light resource intelligent fusion analysis module is used for fusing the satellite weather/light resource data and the real-time weather/light resource data or the weather/light resource data with long time sequence of historical accumulation to obtain the weather/light resource data.
8. The intelligent design platform of claim 6, wherein the structure of the mounting area comprises a slope and an orientation of the mounting area;
the household photovoltaic power station simulation design unit comprises: building and photovoltaic installation area modeling module and household photovoltaic electrical system modeling module, wherein:
the building and photovoltaic installation area modeling module is used for dividing the installation area into at least one unit subarea and at least one unit area based on the gradient and the orientation of the installation area, and determining the installation inclination angle and the azimuth angle of a photovoltaic assembly in each unit subarea to obtain a corresponding assembly arrangement model;
the household photovoltaic electrical system modeling module is used for determining the wiring mode from each photovoltaic assembly to a grid-connected point to obtain a corresponding electrical wiring model.
9. The intelligent design platform of claim 6, wherein the user photovoltaic power plant simulation design unit further comprises a terrain effects modeling analysis module to:
and acquiring the information of the surrounding horizon of the position of the photovoltaic power station of the user to be designed, and performing remote shadow shielding calculation to obtain the terrain influence parameters.
10. The intelligent design platform of claim 6, wherein the user photovoltaic power plant simulation design unit further comprises: component-inverter group string and matching design module and photovoltaic system efficiency design module, wherein:
the component-inverter string and matching design module is used for determining an inverter matching scheme and a string combining scheme by combining with a preset national standard requirement;
photovoltaic system efficiency design module is used for based on the module model of arranging, acquires dust and shelters from loss, diffuse reflection coefficient, in the cluster/mismatch coefficient between the cluster, the system is unavailable rate, and based on the dust shelters from the loss diffuse reflection coefficient, in the cluster/mismatch coefficient between the cluster the system is unavailable rate to through calculating system loss coefficients such as the effective irradiation loss coefficient, temperature loss coefficient, direct current line loss coefficient, dc-to-ac converter actual efficiency, alternating current line loss, and then obtain system efficiency analysis scheme.
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