CN115291538B - Digital simulation method and system for photovoltaic energy storage power station - Google Patents
Digital simulation method and system for photovoltaic energy storage power station Download PDFInfo
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Abstract
The invention provides a digital simulation method and a digital simulation system for a photovoltaic energy storage power station, wherein the method comprises the following steps: constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene; constructing a control system based on the functional scene script, and constructing an initial simulation system; importing the logic scene script based on the initial simulation system to construct a standard simulation system; and importing the specific scene script into the standard simulation system, starting the system, acquiring simulation data through the control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation. According to the scheme, the power generation efficiency and economic benefit of the photovoltaic power station can be calculated in a more accurate mode under different fields, different weather temperatures and different hardware configurations, and the method is beneficial to providing a powerful data support in initial project system construction, investment estimation and benefit estimation.
Description
Technical Field
The invention relates to the technical field of photovoltaic energy storage power stations, in particular to a digital simulation method and a digital simulation system for a photovoltaic energy storage power station.
Background
Along with the increasing of the urban process, the building energy consumption keeps continuously increasing trend, and under the large background of carbon neutralization, the large-scale application of renewable energy sources in the building field is accelerated, so that the building and building integrated roof solar grid-connected photovoltaic power generation facility is provided. However, the photovoltaic power generation system is greatly affected by seasons and weather, the output power of the photovoltaic power generation system is very random, and energy storage equipment with corresponding capacity is required to be independently operated for meeting load requirements.
When the photovoltaic power generation system is accessed to the urban roof building group or the factory building group, the photovoltaic power generation system configuration and the energy storage system configuration are important in the early stage of checking and planning the photovoltaic cell arrangement field, and all links are buckled. When the conventional project implementation planning and the expected benefit accounting of the power station are carried out, the accumulated weight calculation is only carried out in a large range, and the differences caused by the coordination among systems or the different hardware system configurations cannot be carefully considered, so that the project evaluation and prediction accuracy is lower. Therefore, a simulation method capable of more accurately calculating the power generation efficiency and economic benefit of the photovoltaic power station in different sites, different weather temperatures and different hardware configurations is needed.
Disclosure of Invention
The invention aims to provide a digital simulation method and a digital simulation system for a photovoltaic energy storage power station, which solve the problem of lower prediction precision caused by no consideration of differences caused by coordination among systems or different hardware system configurations when power generation and income evaluation prediction are carried out on the photovoltaic power station and energy storage equipment in the prior art.
The technical scheme provided by the invention is as follows:
the invention provides a digital simulation method of a photovoltaic energy storage power station, which comprises the following steps:
constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene;
constructing a control system based on the functional scene script, and constructing an initial simulation system;
importing the logic scene script based on the initial simulation system to construct a standard simulation system;
and importing the specific scene script into the standard simulation system, starting the system, acquiring simulation data through the control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation.
According to the scheme, a scene system is built based on a three-layer system of a functional scene, a logic scene and a specific scene, a control system is built through a functional scene script, and the control system is mainly a digital system formed by virtual instruments, so that a simulation system prototype can be built; then importing a logic scene script, and normalizing the parameter values of each virtual instrument to match with the attribute of the device installed in the actual field, thereby constructing a normalized simulation system; and finally, starting the system through a specific scene script, acquiring simulation data through a control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation, so that the power generation efficiency and economic benefit of the photovoltaic power station can be calculated in a more accurate simulation manner under different fields, different weather temperatures and different hardware configurations, and the method is beneficial to providing a powerful data support in initial project system construction, investment estimation and benefit estimation.
In some embodiments, after the photovoltaic energy storage simulation, the method further comprises:
and optimizing the scene system according to simulation results fed back by all virtual instruments in the standard simulation system.
The scheme also comprises a feedback system, the feedback system is introduced after the simulation system simulates to a certain stage, and a new scene system can be formed through the result output by the feedback system, so that the iteration optimization is gradually performed until the data fitting degree of the simulation system and the reality system is higher.
Specifically, the feedback system is internally provided with an algorithm analysis module aiming at simulation results of different virtual instruments. The system sharing database is used for acquiring instrument simulation data and measurement data uploaded by a real system, the difference of the data is subdivided and compared, and then a parameter optimization scheme of a logic scene in the scene system is provided, so that the scene system can be gradually iterated and optimized, and the result of the digital simulation system tends to the real scene.
In some embodiments, after optimizing the scene system, the method further comprises:
constructing a plurality of different simulation scenes according to a plurality of specific scene parameters in the scene system;
and carrying out simulation of different working conditions in multiple dimensions based on a plurality of different simulation scenes.
After a plurality of specific scene parameters are obtained, different simulation scenes can be constructed, and then the simulation conditions of different working conditions can be realized in multiple dimensions by utilizing the quick-reading iteration characteristic of a computer, so that data prediction support under different working conditions is provided for actual field operation.
In some embodiments, before the building of the canonical simulation system, the method further includes:
establishing communication connection between the control system and the scene system;
when the preset simulation conditions are reached, the simulation data are obtained through the control system, and the photovoltaic energy storage simulation is performed, and the method specifically comprises the following steps:
when the system is started, receiving simulation data sent by a management platform and storing the simulation data into a shared database;
judging whether the simulation data reach preset simulation conditions or not;
and if so, the control system acquires the simulation data through the shared database and performs photovoltaic energy storage simulation.
The scheme also comprises a communication system, wherein the communication system can provide different data acquisition communication interfaces or communication modules for the internal use of the system, so that the communication connection between the control system and the scene system is realized, and the communication connection between the communication system and the Internet and the management platform is realized.
When a specific scene script is imported into the standard simulation system and the system is started, the communication system is synchronously started, simulation data sent by the management platform are received, and the simulation data are stored in the shared database; when the simulation data are judged to reach the preset simulation conditions, the control system acquires the simulation data through the shared database to perform photovoltaic energy storage simulation.
In some embodiments, the receiving the simulation data sent by the management platform specifically includes:
receiving historical and real-time weather information data;
and receiving key charge and discharge power data of the real photovoltaic power generation system sent by the management platform.
The communication system comprises a weather data acquisition module and a photovoltaic power station operation system data acquisition module. The weather data acquisition module is developed based on software languages such as JAVA/Python/. Net/Qt and the like, is accessed into the Internet, and acquires historical or real-time weather information data; and the photovoltaic power station operation system data acquisition module is developed based on software languages such as JAVA/Python/. Net/Qt and the like, is accessed into a cloud management platform of the photovoltaic power station, and acquires data such as key charge and discharge power of a real photovoltaic power generation system. In addition, when simulation is performed, constructing the scene system further comprises obtaining simulation data corresponding to different sites, different hardware configurations and the like so as to improve the authenticity of the simulation scene.
In addition, the invention also provides a digital simulation system of the photovoltaic energy storage power station, which comprises:
the first construction module is used for constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene;
the second construction module is used for constructing a control system based on the functional scene script and constructing an initial simulation system;
the third construction module is used for importing the logic scene script based on the initial simulation system to construct a standard simulation system;
and the simulation module is used for importing the specific scene script into the standard simulation system, starting the system, acquiring simulation data through the control system when the preset simulation conditions are reached, and performing photovoltaic energy storage simulation.
According to the scheme, a scene system is built based on a three-layer system of a functional scene, a logic scene and a specific scene, a control system is built through a functional scene script, and the control system is mainly a digital system formed by virtual instruments, so that a simulation system prototype can be built; then importing a logic scene script, and normalizing the parameter values of each virtual instrument to match with the attribute of the device installed in the actual field, thereby constructing a normalized simulation system; and finally, starting the system through a specific scene script, acquiring simulation data through a control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation, so that the power generation efficiency and economic benefit of the photovoltaic power station can be calculated in a more accurate simulation manner under different fields, different weather temperatures and different hardware configurations, and the method is beneficial to providing a powerful data support in initial project system construction, investment estimation and benefit estimation.
In some embodiments, further comprising:
and the feedback optimization module is used for optimizing the scene system according to the simulation results fed back by the virtual instruments in the standard simulation system.
In some embodiments, the simulation module is further configured to construct a plurality of different simulation scenes according to a plurality of specific scene parameters in the scene system, and perform simulation of different working conditions in multiple dimensions based on the plurality of different simulation scenes.
In some embodiments, further comprising:
the communication module is used for establishing communication connection between the control system and the scene system, and when the system is started, the communication module receives simulation data sent by the management platform and stores the simulation data in the shared database;
and the judging module is used for judging whether the simulation data reach preset simulation conditions, and if so, the control system acquires the simulation data through the shared database and performs photovoltaic energy storage simulation.
In some embodiments, the simulation data includes historical and real-time weather information data, and also includes key charge and discharge power data of the real photovoltaic power generation system sent by the management platform.
According to the digital simulation method and system for the photovoltaic energy storage power station, provided by the invention, more accurate simulation calculation of the power generation efficiency and economic benefits of the photovoltaic power station in different sites, different weather temperatures and different hardware configurations can be realized, and the method and system are beneficial to providing a powerful data support in initial project system construction, investment estimation and benefit estimation.
Drawings
The above features, technical features, advantages and implementation modes of the present invention will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and understandable manner.
FIG. 1 is a schematic overall flow diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a system connection according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart diagram of one embodiment of the present invention;
FIG. 4 is a schematic flow chart of another embodiment of the present invention;
fig. 5 is a schematic diagram of a system structure according to an embodiment of the present invention.
Reference numerals in the drawings: 1-a first building block; 2-a second building block; 3-a third building block; 4-a simulation module; 5-a feedback optimization module; 6-a communication module; 7-judging module.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
In one embodiment, referring to fig. 1 of the drawings in the specification, the invention provides a digital simulation method of a photovoltaic energy storage power station, comprising the following steps:
s1, constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene.
The functional scene is responsible for describing the environment implemented by the whole system, the functions implemented by the whole system and the connection or interaction modes among the functional modules. The logic scene is used for extracting key scene parameters and giving specific value ranges to the scene parameters. The specific scenario is the implementation of the simulation system and describes the start and stop conditions. In order to realize the automation of the subsequent simulation system, the scene system is finally output as a script file for importing and using by other systems.
For example, for the present simulation system, a certain functional scenario may be defined as: 109kw centralized photovoltaic grid-connected power generation system adopts 230Wp polycrystalline silicon cell plate 162 blocks, uses 36 groups of adjustable cell plate brackets, wherein 18 groups of 5 cell plates can be installed, the rest 18 groups of 4 cell plates can be installed, 9 units are divided, each unit comprises 18 cell plates, the placement position is 2000 square meter factory building roof, the factory building is located north to south, no high building shielding exists in the surrounding ten meters, an energy storage power station is connected to a bus at a direct current side, the photovoltaic power generation and the energy storage power station supply power to a power grid through a photovoltaic controller, and the energy storage power station is charged by a photovoltaic system. According to the description of the functional scene, the logic scene can extract the specific scene parameter list of the number of the photovoltaic array panels, the placement azimuth coordinates, the angles of the battery supports, the number of the photovoltaic controllers and the working parameters, the number of the inverters and the working parameters, the capacity of the energy storage power station and the like. The specific scene is set to be the historical weather data of at least 30 days, and the data must include illumination intensity and average air temperature. And the simulation condition is that the capacity of the energy storage power station is too low or the historical weather data is used up when the simulation is finished, namely the simulation operation of the system is basically operated based on the actual days.
S2, building a control system based on the functional scene script, and building an initial simulation system.
The control system is mainly a digital system formed by virtual instruments and is a specific realization of functional scenes in the scene system. The virtual instrument, i.e. the digitization of a real-world device or instrument, i.e. the function of the controller is described by input/output data and a function written in software. In the simulation system described in this patent, required equipment or instruments include photovoltaic controllers, photovoltaic panels, inverters, BMS, PCS, energy storage power stations, etc., and can be developed into virtual instruments based on graphical interface software such as LabView/C#/Qt. A virtual instrument object has both parametric properties and data interface properties. The parameter attribute is generally an operating parameter or a physical parameter, and the attribute value can be adjusted as required. The data interface is divided into an input interface and an output interface. For example, the parameters of the virtual photovoltaic cell panel developed based on the photovoltaic cell panel include open-circuit voltage, peak voltage, short-circuit current, peak current, maximum output power, panel material and inclination angle. The data input port has two paths, one path is used for driving data input such as weather data, the other path is used for load data source input such as output data of the photovoltaic controller, and the output value of the output data interface is voltage, current and the like.
Based on the functional scene script in the scene system, a control system is built, so that the connection relation among the virtual instruments can be realized, and a simulation system prototype is built. At this time, each virtual instrument parameter in the control system is a default value.
S3, importing a logic scene script based on the initial simulation system to construct a standard simulation system.
Based on the built initial simulation system, the logic scene script is imported, so that the parameter values of each virtual instrument can be standardized and matched with the attributes of equipment and devices installed in the actual field.
S4, importing a specific scene script into the standard simulation system, starting the system, acquiring simulation data through the control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation.
Referring to fig. 2 of the drawings, the scheme comprises a scene system and a control system. Constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene, constructing a control system through a functional scene script, wherein the control system is mainly a digital system formed by virtual instruments, so that a simulation system prototype can be constructed; then importing a logic scene script, and normalizing the parameter values of each virtual instrument to match with the attribute of the device installed in the actual field, thereby constructing a normalized simulation system; and finally, starting the system through a specific scene script, acquiring simulation data through a control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation, so that the power generation efficiency and economic benefit of the photovoltaic power station can be calculated in a more accurate simulation manner under different fields, different weather temperatures and different hardware configurations, and the method is beneficial to providing a powerful data support in initial project system construction, investment estimation and benefit estimation.
In one embodiment, referring to fig. 3 of the drawings, after the photovoltaic energy storage simulation is performed according to the above embodiment, the method further includes:
s5, optimizing the scene system according to simulation results fed back by the virtual instruments in the standard simulation system.
Referring to figure 2 of the drawings, the scheme further comprises a feedback system, after the simulation system simulates to a certain stage, the feedback system is introduced, and a new scene system can be formed through the result output by the feedback system, so that the simulation system and the reality system are gradually and iteratively optimized until the data fitting degree of the simulation system and the reality system is higher.
Specifically, the feedback system is internally provided with an algorithm analysis module aiming at simulation results of different virtual instruments. The system sharing database is used for acquiring instrument simulation data and measurement data uploaded by a real system, the difference of the data is subdivided and compared, and then a parameter optimization scheme of a logic scene in the scene system is provided, so that the scene system can be gradually iterated and optimized, and the result of the digital simulation system tends to the real scene.
In the operation process of the photovoltaic energy storage power station, the actual data is uploaded to a simulation system, the parameter adjusting characteristic and the superior iteration performance of the simulation system are utilized, which functional module in the actual system affects the operation efficiency of the whole photovoltaic energy storage power station are compared and found, and the operation data of the power station are not required to be manually called, and complex calculation and comparison analysis are not required.
In one embodiment, referring to fig. 4 of the drawings, after optimizing the scene system according to the above embodiment, the method further includes:
s6, constructing a plurality of different simulation scenes according to a plurality of specific scene parameters in the scene system.
S7, simulating different working conditions in multiple dimensions based on a plurality of different simulation scenes.
After a plurality of specific scene parameters are obtained, different simulation scenes can be constructed, and then the simulation conditions of different working conditions can be realized in multiple dimensions by utilizing the quick-reading iteration characteristic of a computer, so that data prediction support under different working conditions is provided for actual field operation.
The method is different from the fact that once a photovoltaic power generation energy storage system is built, the photovoltaic power generation energy storage system is difficult to change in reality, after the virtual simulation system is built, virtual device parameters in the system can be changed, communication data can be customized and other modes are utilized to achieve simulation systems with different configurations or achieve working condition simulation tests under certain extreme conditions in real situations, and operation condition estimation under extreme scenes is achieved.
In one embodiment, before constructing the canonical simulation system on the basis of any one of the foregoing embodiments, the method further includes:
and establishing communication connection between the control system and the scene system.
Referring to fig. 2 of the drawings, the scheme further comprises a communication system, wherein the communication system can provide different data acquisition communication interfaces or communication modules for internal use of the system, so that the communication connection between the control system and the scene system is realized, and the communication connection between the communication system and the Internet and the management platform is realized.
When the preset simulation conditions are reached, the simulation data are obtained through the control system, and the photovoltaic energy storage simulation is carried out, and the method specifically comprises the following steps:
when the system is started, receiving simulation data sent by a management platform and storing the simulation data into a shared database;
judging whether the simulation data reach preset simulation conditions or not;
if yes, the control system acquires simulation data through the shared database and performs photovoltaic energy storage simulation.
When a specific scene script is imported into the standard simulation system and the system is started, the communication system is synchronously started, simulation data sent by the management platform are received, and the simulation data are stored in the shared database; when the simulation data are judged to reach the preset simulation conditions, the control system acquires the simulation data through the shared database to perform photovoltaic energy storage simulation.
In one embodiment, on the basis of the foregoing embodiment, receiving simulation data sent by a management platform specifically includes:
receiving historical and real-time weather information data;
and receiving key charge and discharge power data of the real photovoltaic power generation system sent by the management platform.
The communication system comprises a weather data acquisition module and a photovoltaic power station operation system data acquisition module. The weather data acquisition module is developed based on software languages such as JAVA/Python/. Net/Qt and the like, is accessed into the Internet, and acquires historical or real-time weather information data; and the photovoltaic power station operation system data acquisition module is developed based on software languages such as JAVA/Python/. Net/Qt and the like, is accessed into a cloud management platform of the photovoltaic power station, and acquires data such as key charge and discharge power of a real photovoltaic power generation system. In addition, when simulation is performed, constructing the scene system further comprises obtaining simulation data corresponding to different sites, different hardware configurations and the like so as to improve the authenticity of the simulation scene.
In one embodiment, referring to fig. 5 of the drawings, the invention further provides a digital simulation system of a photovoltaic energy storage power station, which comprises a first construction module 1, a second construction module 2, a third construction module 3 and a simulation module 4.
The first construction module 1 is used for constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene.
The functional scene is responsible for describing the environment implemented by the whole system, the functions implemented by the whole system and the connection or interaction modes among the functional modules. The logic scene is used for extracting key scene parameters and giving specific value ranges to the scene parameters. The specific scenario is the implementation of the simulation system and describes the start and stop conditions. In order to realize the automation of the subsequent simulation system, the scene system is finally output as a script file for importing and using by other systems.
For example, for the present simulation system, a certain functional scenario may be defined as: 109kw centralized photovoltaic grid-connected power generation system adopts 230Wp polycrystalline silicon cell plate 162 blocks, uses 36 groups of adjustable cell plate brackets, wherein 18 groups of 5 cell plates can be installed, the rest 18 groups of 4 cell plates can be installed, 9 units are divided, each unit comprises 18 cell plates, the placement position is 2000 square meter factory building roof, the factory building is located north to south, no high building shielding exists in the surrounding ten meters, an energy storage power station is connected to a bus at a direct current side, the photovoltaic power generation and the energy storage power station supply power to a power grid through a photovoltaic controller, and the energy storage power station is charged by a photovoltaic system. According to the description of the functional scene, the logic scene can extract the specific scene parameter list of the number of the photovoltaic array panels, the placement azimuth coordinates, the angles of the battery supports, the number of the photovoltaic controllers and the working parameters, the number of the inverters and the working parameters, the capacity of the energy storage power station and the like. The specific scene is set to be the historical weather data of at least 30 days, and the data must include illumination intensity and average air temperature. And the simulation condition is that the capacity of the energy storage power station is too low or the historical weather data is used up when the simulation is finished, namely the simulation operation of the system is basically operated based on the actual days.
The second construction module 2 is used for constructing a control system based on the functional scene script and constructing an initial simulation system.
The control system is mainly a digital system formed by virtual instruments and is a specific realization of functional scenes in the scene system. The virtual instrument, i.e. the digitization of a real-world device or instrument, i.e. the function of the controller is described by input/output data and a function written in software. In the simulation system described in this patent, required equipment or instruments include photovoltaic controllers, photovoltaic panels, inverters, BMS, PCS, energy storage power stations, etc., and can be developed into virtual instruments based on graphical interface software such as LabView/C#/Qt. A virtual instrument object has both parametric properties and data interface properties. The parameter attribute is generally an operating parameter or a physical parameter, and the attribute value can be adjusted as required. The data interface is divided into an input interface and an output interface. For example, the parameters of the virtual photovoltaic cell panel developed based on the photovoltaic cell panel include open-circuit voltage, peak voltage, short-circuit current, peak current, maximum output power, panel material and inclination angle. The data input port has two paths, one path is used for driving data input such as weather data, the other path is used for load data source input such as output data of the photovoltaic controller, and the output value of the output data interface is voltage, current and the like.
Based on the functional scene script in the scene system, a control system is built, so that the connection relation among the virtual instruments can be realized, and a simulation system prototype is built. At this time, each virtual instrument parameter in the control system is a default value.
The third construction module 3 is used for importing a logic scene script based on the initial simulation system to construct a standard simulation system.
Based on the built initial simulation system, the logic scene script is imported, so that the parameter values of each virtual instrument can be standardized and matched with the attributes of equipment and devices installed in the actual field.
The simulation module 4 is used for importing a specific scene script into the standard simulation system and starting the system, and when the preset simulation conditions are reached, the simulation data are obtained through the control system, and the photovoltaic energy storage simulation is carried out.
Referring to fig. 2 of the drawings, the scheme comprises a scene system and a control system. Constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene, constructing a control system through a functional scene script, wherein the control system is mainly a digital system formed by virtual instruments, so that a simulation system prototype can be constructed; then importing a logic scene script, and normalizing the parameter values of each virtual instrument to match with the attribute of the device installed in the actual field, thereby constructing a normalized simulation system; and finally, starting the system through a specific scene script, acquiring simulation data through a control system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation, so that the power generation efficiency and economic benefit of the photovoltaic power station can be calculated in a more accurate simulation manner under different fields, different weather temperatures and different hardware configurations, and the method is beneficial to providing a powerful data support in initial project system construction, investment estimation and benefit estimation.
In an embodiment, referring to fig. 5 of the drawings in the specification, on the basis of the above embodiment, the digital simulation system of the photovoltaic energy storage power station provided by the invention further includes a feedback optimization module 5.
The feedback optimization module 5 is used for optimizing the scene system according to the simulation results fed back by the virtual instruments in the standard simulation system.
Referring to figure 2 of the drawings, the scheme further comprises a feedback system, after the simulation system simulates to a certain stage, the feedback system is introduced, and a new scene system can be formed through the result output by the feedback system, so that the simulation system and the reality system are gradually and iteratively optimized until the data fitting degree of the simulation system and the reality system is higher.
Specifically, the feedback system is internally provided with an algorithm analysis module aiming at simulation results of different virtual instruments. The system sharing database is used for acquiring instrument simulation data and measurement data uploaded by a real system, the difference of the data is subdivided and compared, and then a parameter optimization scheme of a logic scene in the scene system is provided, so that the scene system can be gradually iterated and optimized, and the result of the digital simulation system tends to the real scene.
In the operation process of the photovoltaic energy storage power station, the actual data is uploaded to a simulation system, the parameter adjusting characteristic and the superior iteration performance of the simulation system are utilized, which functional module in the actual system affects the operation efficiency of the whole photovoltaic energy storage power station are compared and found, and the operation data of the power station are not required to be manually called, and complex calculation and comparison analysis are not required.
In an embodiment, on the basis of the foregoing embodiment, the simulation module is further configured to construct a plurality of different simulation scenes according to a plurality of specific scene parameters in the scene system, and perform simulation of different working conditions in multiple dimensions based on the plurality of different simulation scenes.
After a plurality of specific scene parameters are obtained, different simulation scenes can be constructed, and then the simulation conditions of different working conditions can be realized in multiple dimensions by utilizing the quick-reading iteration characteristic of a computer, so that data prediction support under different working conditions is provided for actual field operation.
The method is different from the fact that once a photovoltaic power generation energy storage system is built, the photovoltaic power generation energy storage system is difficult to change in reality, after the virtual simulation system is built, virtual device parameters in the system can be changed, communication data can be customized and other modes are utilized to achieve simulation systems with different configurations or achieve working condition simulation tests under certain extreme conditions in real situations, and operation condition estimation under extreme scenes is achieved.
In one embodiment, referring to fig. 5 of the drawings, on the basis of the above embodiment, the digital simulation system of the photovoltaic energy storage power station provided by the invention further comprises a communication module 6 and a judging module 7.
The communication module 6 is used for establishing communication connection between the control system and the scene system, and when the system is started, the communication module receives simulation data sent by the management platform and stores the simulation data in the shared database.
Referring to fig. 2 of the drawings, the scheme further comprises a communication system, wherein the communication system can provide different data acquisition communication interfaces or communication modules for internal use of the system, so that the communication connection between the control system and the scene system is realized, and the communication connection between the communication system and the Internet and the management platform is realized.
The judging module 7 is used for judging whether the simulation data reach preset simulation conditions, if so, the control system acquires the simulation data through the shared database and performs photovoltaic energy storage simulation.
When a specific scene script is imported into the standard simulation system and the system is started, the communication system is synchronously started, simulation data sent by the management platform are received, and the simulation data are stored in the shared database; when the simulation data are judged to reach the preset simulation conditions, the control system acquires the simulation data through the shared database to perform photovoltaic energy storage simulation.
In one embodiment, the simulation data includes historical and real-time weather information data, and also includes key charge and discharge power data of the real photovoltaic power generation system sent by the management platform.
The communication system comprises a weather data acquisition module and a photovoltaic power station operation system data acquisition module. The weather data acquisition module is developed based on software languages such as JAVA/Python/. Net/Qt and the like, is accessed into the Internet, and acquires historical or real-time weather information data; and the photovoltaic power station operation system data acquisition module is developed based on software languages such as JAVA/Python/. Net/Qt and the like, is accessed into a cloud management platform of the photovoltaic power station, and acquires data such as key charge and discharge power of a real photovoltaic power generation system. In addition, when simulation is performed, constructing the scene system further comprises obtaining simulation data corresponding to different sites, different hardware configurations and the like so as to improve the authenticity of the simulation scene.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The digital simulation method for the photovoltaic energy storage power station is characterized by comprising the following steps of:
constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene;
constructing a control system based on a functional scene script, and constructing an initial simulation system, wherein the functional scene script constructing control system is a digital system formed by a virtual instrument, and the virtual instrument describes the functions of a controller through function functions written by input and output data and software;
based on the initial simulation system, importing a logic scene script, standardizing the parameter values of each virtual instrument to match with the attribute of equipment devices installed in the actual site, and constructing a standard simulation system;
importing a specific scene script into the standard simulation system, starting the standard simulation system, acquiring simulation data through the standard simulation system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation;
before the standard simulation system is constructed, the method further comprises the following steps:
establishing communication connection between the standard simulation system and the scene system;
when the preset simulation conditions are reached, simulation data are obtained through the standard simulation system, and photovoltaic energy storage simulation is performed, and the method specifically comprises the following steps:
when the standard simulation system is started, receiving simulation data sent by a management platform and storing the simulation data into a shared database;
judging whether the simulation data reach preset simulation conditions or not;
and if so, the standard simulation system acquires the simulation data through the shared database and performs photovoltaic energy storage simulation.
2. The digital simulation method of a photovoltaic energy storage power station according to claim 1, wherein after the photovoltaic energy storage simulation, the method further comprises:
and optimizing the scene system according to simulation results fed back by all virtual instruments in the standard simulation system.
3. The digital simulation method of a photovoltaic energy storage power station according to claim 2, wherein after optimizing the scene system, the method further comprises:
constructing a plurality of different simulation scenes according to a plurality of specific scene parameters in the scene system;
and carrying out simulation of different working conditions in multiple dimensions based on a plurality of different simulation scenes.
4. The digital simulation method of the photovoltaic energy storage power station according to claim 1, wherein the receiving the simulation data sent by the management platform specifically comprises:
receiving historical and real-time weather information data;
and receiving key charge and discharge power data of the real photovoltaic power generation system sent by the management platform.
5. A photovoltaic energy storage plant digital simulation system based on the photovoltaic energy storage plant digital simulation method of any of claims 1-4, comprising:
the first construction module is used for constructing a scene system based on a three-layer system of a functional scene, a logic scene and a specific scene;
the second construction module is used for constructing a control system based on a functional scene script, and constructing an initial simulation system, wherein the functional scene script construction control system is a digital system formed by virtual instruments, and the virtual instruments describe the functions of the controller through function functions written by input and output data and software;
the third building module is used for importing a logic scene script based on the initial simulation system to enable the logic scene script to be matched with the attribute of the equipment device installed in the actual field, so as to build a standard simulation system;
the simulation module is used for importing a specific scene script into the standard simulation system and starting the standard simulation system, acquiring simulation data through the standard simulation system when a preset simulation condition is reached, and performing photovoltaic energy storage simulation;
the communication module is used for establishing communication connection between the standard simulation system and the scene system, receiving simulation data sent by the management platform through the communication module when the standard simulation system is started, and storing the simulation data into the shared database;
and the judging module is used for judging whether the simulation data reach preset simulation conditions, if so, the standard simulation system acquires the simulation data through the shared database and performs photovoltaic energy storage simulation.
6. The digital simulation system of a photovoltaic energy storage plant of claim 5, further comprising:
and the feedback optimization module is used for optimizing the scene system according to the simulation results fed back by the virtual instruments in the standard simulation system.
7. The digital simulation system of claim 6, wherein the simulation module is further configured to construct a plurality of different simulation scenes according to a plurality of specific scene parameters in the scene system, and perform simulation of different multi-dimensional working conditions based on the plurality of different simulation scenes.
8. The digital simulation system of a photovoltaic energy storage power station of claim 5, wherein the simulation data comprises historical and real-time weather information data, and further comprises key charge and discharge power data of a real photovoltaic power generation system sent by the management platform.
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Address after: Room 1101, No. 2, Lane 288, Qianfan Road, Xinqiao Town, Songjiang District, Shanghai 201612 Patentee after: Shanghai Meikesheng Energy Technology Co.,Ltd. Country or region after: China Address before: Room 1101, No. 2, Lane 288, Qianfan Road, Xinqiao Town, Songjiang District, Shanghai Patentee before: Shanghai Meike Energy Storage Technology Co.,Ltd. Country or region before: China |