Distributed photovoltaic engineering safety management method based on risk assessment

Abstract

The invention relates to the technical field of photovoltaic safety management, and provides a distributed photovoltaic engineering safety management method based on risk assessment, and the method comprises the steps: obtaining user-side distributed photovoltaic data and photovoltaic power plant equipment operation data, determining a key monitoring point through employing a data feature extraction technology, monitoring the state of equipment in real time, and meanwhile, carrying out the safety management of the distributed photovoltaic engineering. The method comprises the following steps: constructing a digital twinborn simulation model, timely discovering equipment abnormity and newly-added equipment through analog image comparison, carrying out validity detection and verification, and for unidentified equipment, analyzing historical data and position information of the unidentified equipment so as to identify the unsafe newly-added equipment and evaluate an equipment abnormity area. According to the invention, the real-time dynamic management of the photovoltaic engineering is realized, and the safety and management efficiency of the photovoltaic engineering are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic management, and in particular to a distributed photovoltaic engineering safety management method based on risk assessment. Background Art

[0002] Distributed photovoltaics is a type of photovoltaic power generation facility installed on the roofs of existing buildings. Its operating characteristics are that users generate and use electricity for their own use, and the excess electricity can be transmitted to the power grid, while playing a balancing and regulating role in the distribution system. Due to its flexibility and sustainability, distributed photovoltaics have been widely promoted and applied around the world. However, during the construction period, the characteristics of distributed photovoltaic projects, such as batch grid connection, wide distribution, and the diversity of rooftop enterprise types, have brought unprecedented challenges to safety management.

[0003] Under the existing technical background, the safety management of distributed photovoltaic projects faces the following technical pain points. During the infrastructure construction period, the planned photovoltaic installation often undergoes dynamic adjustments. This uncertainty causes the safety management work to be in a passive state. The safety and use of distributed photovoltaic projects are dynamic. Distributed photovoltaic projects often have a compact construction cycle, and the project locations are scattered and cover a wide area. When working on multiple work surfaces at the same time, the collaboration between different types of work becomes complicated. The management of distributed photovoltaic projects is difficult to manage, and it is impossible to dynamically manage the power equipment working in photovoltaics in real time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a distributed photovoltaic project safety management method based on risk assessment to solve the problem that it is impossible to dynamically manage photovoltaic power equipment in real time.

[0005] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0006] The present invention provides a distributed photovoltaic engineering safety management method based on risk assessment, comprising:

[0007] Step S101, obtaining user-side distributed photovoltaic data and photovoltaic power plant equipment operation data;

[0008] Step S102, extracting data features from the distributed photovoltaic data on the user side and the photovoltaic power plant equipment operation data, obtaining the location information of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment, and determining the monitoring points of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment according to the location information of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment;

[0009] Step S103, monitoring the user-side distributed photovoltaic equipment monitoring points and the photovoltaic power plant equipment monitoring points to obtain real-time user-side distributed photovoltaic equipment monitoring point data and real-time photovoltaic power plant equipment monitoring point data;

[0010] Step S104, receiving preset user-side distributed photovoltaic equipment and photovoltaic power plant equipment data, using the preset user-side distributed photovoltaic equipment and photovoltaic power plant equipment data as first simulation data, using real-time user-side distributed photovoltaic equipment monitoring point data and real-time photovoltaic power plant equipment monitoring point data as second simulation data, substituting the first simulation data and the second simulation data into the digital twin simulation model to obtain a first simulation image and a second simulation image;

[0011] In step S105, the first simulated image is compared with the second simulated image to obtain differentiated image data, the differentiated image data is tested for validity, and verification information of the device corresponding to the differentiated image is generated. If the verification of the device information corresponding to the differentiated image is passed and the differentiated image data is valid after the test, the differentiated image data is used as a newly added monitored photovoltaic device.

[0012] Furthermore, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step S101:

[0013] The user-side distributed photovoltaic data includes photovoltaic equipment location information, photovoltaic equipment power generation data, photovoltaic equipment operating status data, photovoltaic equipment operating status data, photovoltaic equipment performance parameters, photovoltaic equipment environmental condition data and photovoltaic equipment grid-connected information;

[0014] Photovoltaic equipment location information includes photovoltaic panel installation location, photovoltaic panel orientation, and photovoltaic panel inclination;

[0015] The photovoltaic equipment power generation data includes the daily power generation of photovoltaic equipment, the monthly power generation of photovoltaic equipment, and the annual power generation statistics of photovoltaic equipment;

[0016] The photovoltaic equipment operation status data includes the working status of the photovoltaic equipment, the online status of the photovoltaic equipment and the fault status of the photovoltaic equipment;

[0017] Photovoltaic equipment performance parameters include photovoltaic module conversion efficiency and photovoltaic module output power;

[0018] The photovoltaic equipment environmental condition data includes the temperature at the photovoltaic equipment installation location, the humidity at the photovoltaic equipment installation location, and the irradiance at the photovoltaic equipment installation location;

[0019] The photovoltaic equipment grid-connected information includes the connection status of the photovoltaic equipment and the power grid, and the photovoltaic equipment power upload information;

[0020] The photovoltaic power plant equipment operation data includes: photovoltaic power plant equipment location information, photovoltaic power plant equipment operation parameters, photovoltaic power plant equipment environmental data, photovoltaic power plant equipment failure and alarm information;

[0021] The equipment location information of the photovoltaic power plant includes the locations of the inverters, transformers, and combiner boxes in the photovoltaic power plant.

[0022] Furthermore, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 102:

[0023] Extract data features from the acquired user-side distributed photovoltaic data and photovoltaic power plant equipment operation data, identify and extract photovoltaic equipment location information, which includes the longitude and latitude of the photovoltaic equipment, the installation height of the photovoltaic equipment, and the orientation of the photovoltaic equipment;

[0024] Determine the location of each photovoltaic device and each device in the photovoltaic power plant according to the extracted data features, wherein the location of each photovoltaic device and each device in the photovoltaic power plant includes the coordinate point of the photovoltaic device;

[0025] Based on the coordinate points of the photovoltaic equipment, the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment are partitioned according to the coordinate points to obtain the partitions of the distributed photovoltaic equipment on the user side and the partitions of the photovoltaic power plant equipment;

[0026] The photovoltaic equipment in the distributed photovoltaic equipment partition on the user side and the photovoltaic power plant equipment partition are used as monitoring points.

[0027] Furthermore, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 103:

[0028] Install monitoring equipment at the selected monitoring points. The monitoring equipment includes sensors and cameras. The sensors and cameras are used to monitor the power generation, operating status, performance parameters and environmental conditions of the distributed photovoltaic equipment on the user side. The sensors and cameras are also used to monitor the operating parameters and environmental data of the photovoltaic power plant equipment.

[0029] The data collected in real time by the monitoring equipment is processed and analyzed, and the processed and analyzed data is used for comparison of the digital twin simulation model.

[0030] Furthermore, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 104:

[0031] Receiving pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment, the pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment including the location, performance parameters and operating conditions of the photovoltaic equipment, the pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment constitute first simulation data, and the first simulation data is used to provide an initial virtual environment foundation for the digital twin simulation model;

[0032] The data collected in real time from the monitoring points of the distributed photovoltaic equipment and photovoltaic power plant equipment at the user side is used as the second simulation data, and the second simulation data is used to reflect the current operating status and environmental conditions of the equipment;

[0033] The first simulated image displays the operation status of the photovoltaic equipment and the photovoltaic power plant under the preset or initial state, and the second simulated image presents the actual operation status of the current photovoltaic equipment and the photovoltaic power plant in real time.

[0034] Furthermore, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 105:

[0035] The first simulated image is compared with the second simulated image, and when the simulated images are different, the difference data of the simulated images are recorded as difference image data;

[0036] The distinguishing image data is used as information that the state of the photovoltaic equipment or area does not match the preset state;

[0037] The validity of the difference image data is checked. If there is no error data in the difference image data, the difference image data is valid data.

[0038] Furthermore, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention further includes, in step 105:

[0039] Verify the device identification corresponding to the difference image data that has passed the validity test. If the identification of the device corresponding to the difference image data passes the verification by the background control end, the device is marked as a recognized device.

[0040] If the identification of the device corresponding to the distinguishing image data fails to pass the verification by the background control terminal, the device is marked as an unrecognized device;

[0041] Retrieve the historical data and location data of the unidentified device, determine the time when the initial data of the unidentified device was generated, retrieve the photovoltaic equipment information around the location of the unidentified device, obtain the device data set of the area to which the unknown device belongs, match the device data set of the area to which the unknown device belongs with the distributed photovoltaic data on the user side and the equipment operation data of the photovoltaic power plant, and obtain the matching result of the unknown device;

[0042] Devices that are not successfully matched in the unknown device matching results are marked as unknown unsafe new devices, and the unknown unsafe new device information is fed back to the background control end;

[0043] The location of the photovoltaic equipment corresponding to the unknown unsafe new equipment is assessed as an equipment abnormality area.

[0044] Beneficial effects of the present invention:

[0045] Realize real-time dynamic management: The present invention can timely discover and handle equipment anomalies and newly added equipment, thereby realizing real-time dynamic monitoring and management of distributed photovoltaic projects.

[0046] Improve the safety of photovoltaic projects: Through the technical solution of the present invention, safety risks can be effectively reduced and the safe operation of photovoltaic projects can be ensured.

[0047] Improve management efficiency: The ability to automatically process large amounts of data significantly reduces manual intervention, thereby improving management efficiency.

[0048] Providing intuitive visualization tools: The simulated images generated by the digital twin simulation model provide managers with an intuitive visualization interface, making it easier for them to understand and make decisions.

[0049] Realize comprehensive risk monitoring: The present invention can comprehensively monitor and manage the risks of distributed photovoltaic projects and ensure the stable operation of the photovoltaic system.

[0050] Enhance system responsiveness: Rapidly identify and assess abnormal devices, allowing the system to respond and handle abnormal situations more quickly.

[0051] Improving the utilization rate of photovoltaic equipment: Accurate data analysis and real-time monitoring can help optimize the configuration and use of photovoltaic equipment, thereby improving its power generation efficiency and utilization rate.

[0052] In summary, the present invention not only overcomes the technical difficulties of real-time dynamic management of distributed photovoltaic projects, but also achieves remarkable results in improving the safety, management efficiency and system responsiveness of photovoltaic projects, making an important contribution to promoting the sustainable development of the photovoltaic industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0054] Figure 1 A schematic diagram of a method flow chart provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions provided by the embodiments of the present invention are described in detail below in conjunction with the drawings.

[0056] In order to better understand the purpose of the present invention, the present invention is described in further detail below.

[0057] The present invention provides a distributed photovoltaic engineering safety management method based on risk assessment, comprising:

[0058] Step S101, obtaining user-side distributed photovoltaic data and photovoltaic power plant equipment operation data;

[0059] Obtaining user-side distributed photovoltaic data and photovoltaic power plant equipment operation data, which are the basis for subsequent dynamic management.

[0060] Step S102, extracting data features from the distributed photovoltaic data on the user side and the photovoltaic power plant equipment operation data, obtaining the location information of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment, and determining the monitoring points of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment according to the location information of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment;

[0061] Data feature extraction is performed on the acquired data to extract the location information of the photovoltaic equipment, including longitude and latitude, installation height and orientation, etc. Data feature extraction is performed based on the acquired data to determine the monitoring points of the user-side distributed photovoltaic equipment and photovoltaic power plant equipment. The monitoring points will be used for subsequent real-time monitoring.

[0062] Step S103, monitoring the user-side distributed photovoltaic equipment monitoring points and the photovoltaic power plant equipment monitoring points to obtain real-time user-side distributed photovoltaic equipment monitoring point data and real-time photovoltaic power plant equipment monitoring point data;

[0063] At the selected monitoring points, monitoring equipment such as sensors and cameras are installed to monitor the power generation, operating status, performance parameters, environmental conditions and other data of the photovoltaic equipment in real time. The data is received and processed in real time for subsequent comparison.

[0064] Step S104, receiving preset user-side distributed photovoltaic equipment and photovoltaic power plant equipment data, using the preset user-side distributed photovoltaic equipment and photovoltaic power plant equipment data as first simulation data, using real-time user-side distributed photovoltaic equipment monitoring point data and real-time photovoltaic power plant equipment monitoring point data as second simulation data, substituting the first simulation data and the second simulation data into the digital twin simulation model to obtain a first simulation image and a second simulation image;

[0065] The pre-set equipment data is used as the first simulation data, which is the basis of the initial virtual environment. At the same time, the real-time monitoring data is used as the second simulation data, which is used to reflect the actual status of the current equipment. The first simulation data and the second simulation data are substituted into the digital twin simulation model to generate the first simulation image (preset status) and the second simulation image (real-time status).

[0066] In step S105, the first simulated image is compared with the second simulated image to obtain differentiated image data, the differentiated image data is tested for validity, and verification information of the device corresponding to the differentiated image is generated. If the verification of the device information corresponding to the differentiated image is passed and the differentiated image data is valid after the test, the differentiated image data is used as a newly added monitored photovoltaic device.

[0067] Compare the first simulated image with the second simulated image, record the difference data as the difference image data, and the difference image data will be tested for validity to ensure that the data is correct, perform device verification, verify the device identification through the background control end, and distinguish between recognized devices and unrecognized devices. For unrecognized devices, the system will further analyze their historical data and surrounding device information to determine whether they are unknown and unsafe new devices, and conduct abnormal assessments on the locations of these devices.

[0068] Through the above steps, the present invention realizes real-time dynamic management of distributed photovoltaic projects, and can timely discover equipment anomalies and new equipment, thereby ensuring the safe and efficient operation of photovoltaic projects. The present invention not only improves the safety of photovoltaic projects, but also improves management efficiency.

[0069] Specifically, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step S101:

[0070] The user-side distributed photovoltaic data includes photovoltaic equipment location information, photovoltaic equipment power generation data, photovoltaic equipment operating status data, photovoltaic equipment operating status data, photovoltaic equipment performance parameters, photovoltaic equipment environmental condition data and photovoltaic equipment grid-connected information;

[0071] Photovoltaic equipment location information includes photovoltaic panel installation location, photovoltaic panel orientation, and photovoltaic panel inclination;

[0072] The photovoltaic equipment power generation data includes the daily power generation of photovoltaic equipment, the monthly power generation of photovoltaic equipment, and the annual power generation statistics of photovoltaic equipment;

[0073] The photovoltaic equipment operation status data includes the working status of the photovoltaic equipment, the online status of the photovoltaic equipment and the fault status of the photovoltaic equipment;

[0074] Photovoltaic equipment performance parameters include photovoltaic module conversion efficiency and photovoltaic module output power;

[0075] The photovoltaic equipment environmental condition data includes the temperature at the photovoltaic equipment installation location, the humidity at the photovoltaic equipment installation location, and the irradiance at the photovoltaic equipment installation location;

[0076] The photovoltaic equipment grid-connected information includes the connection status of the photovoltaic equipment and the power grid, and the photovoltaic equipment power upload information;

[0077] The photovoltaic power plant equipment operation data includes: photovoltaic power plant equipment location information, photovoltaic power plant equipment operation parameters, photovoltaic power plant equipment environmental data, photovoltaic power plant equipment failure and alarm information;

[0078] The equipment location information of the photovoltaic power plant includes the locations of the inverters, transformers, and combiner boxes in the photovoltaic power plant.

[0079] Specifically, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 102:

[0080] Extract data features from the acquired user-side distributed photovoltaic data and photovoltaic power plant equipment operation data, identify and extract photovoltaic equipment location information, which includes the longitude and latitude of the photovoltaic equipment, the installation height of the photovoltaic equipment, and the orientation of the photovoltaic equipment;

[0081] Determine the location of each photovoltaic device and each device in the photovoltaic power plant according to the extracted data features, wherein the location of each photovoltaic device and each device in the photovoltaic power plant includes the coordinate point of the photovoltaic device;

[0082] Based on the coordinate points of the photovoltaic equipment, the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment are partitioned according to the coordinate points to obtain the partitions of the distributed photovoltaic equipment on the user side and the partitions of the photovoltaic power plant equipment;

[0083] The photovoltaic equipment in the distributed photovoltaic equipment partition on the user side and the photovoltaic power plant equipment partition are used as monitoring points.

[0084] Specifically, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 103:

[0085] Install monitoring equipment at the selected monitoring points. The monitoring equipment includes sensors and cameras. The sensors and cameras are used to monitor the power generation, operating status, performance parameters and environmental conditions of the distributed photovoltaic equipment on the user side. The sensors and cameras are also used to monitor the operating parameters and environmental data of the photovoltaic power plant equipment.

[0086] The data collected in real time by the monitoring equipment is processed and analyzed, and the processed and analyzed data is used for comparison of the digital twin simulation model.

[0087] Specifically, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 104:

[0088] Receiving pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment, the pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment including the location, performance parameters and operating conditions of the photovoltaic equipment, the pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment constitute first simulation data, and the first simulation data is used to provide an initial virtual environment foundation for the digital twin simulation model;

[0089] The data collected in real time from the monitoring points of the distributed photovoltaic equipment and photovoltaic power plant equipment at the user side is used as the second simulation data, and the second simulation data is used to reflect the current operating status and environmental conditions of the equipment;

[0090] The first simulated image displays the operation status of the photovoltaic equipment and the photovoltaic power plant under the preset or initial state, and the second simulated image presents the actual operation status of the current photovoltaic equipment and the photovoltaic power plant in real time.

[0091] Specifically, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention includes, in step 105:

[0092] The first simulated image is compared with the second simulated image, and when the simulated images are different, the difference data of the simulated images are recorded as difference image data;

[0093] The distinguishing image data is used as information that the state of the photovoltaic equipment or area does not match the preset state;

[0094] The validity of the difference image data is checked. If there is no error data in the difference image data, the difference image data is valid data.

[0095] Specifically, the distributed photovoltaic project safety management method based on risk assessment provided by the present invention, in step 105, further includes:

[0096] Verify the device identification corresponding to the difference image data that has passed the validity test. If the identification of the device corresponding to the difference image data passes the verification by the background control end, the device is marked as a recognized device.

[0097] If the identification of the device corresponding to the distinguishing image data fails to pass the verification by the background control terminal, the device is marked as an unrecognized device;

[0098] Retrieve the historical data and location data of the unidentified device, determine the time when the initial data of the unidentified device was generated, retrieve the photovoltaic equipment information around the location of the unidentified device, obtain the device data set of the area to which the unknown device belongs, match the device data set of the area to which the unknown device belongs with the distributed photovoltaic data on the user side and the equipment operation data of the photovoltaic power plant, and obtain the matching result of the unknown device;

[0099] Devices that are not successfully matched in the unknown device matching results are marked as unknown unsafe new devices, and the unknown unsafe new device information is fed back to the background control end;

[0100] The location of the photovoltaic equipment corresponding to the unknown unsafe new equipment is assessed as an equipment abnormality area.

[0101] The present invention solves the problem that it is impossible to dynamically manage photovoltaic power equipment in real time. The specific steps include:

[0102] Data acquisition: First, obtain the user-side distributed photovoltaic data and photovoltaic power plant equipment operation data, laying a data foundation for subsequent dynamic management.

[0103] Data feature extraction and monitoring point determination: By extracting data features from the acquired data, the present invention can accurately identify the location information of the photovoltaic equipment and set key monitoring points accordingly.

[0104] Real-time monitoring: Install sensors and cameras at selected monitoring points to monitor key data such as power generation, operating status, performance parameters and environmental conditions of photovoltaic equipment in real time, providing instant feedback for dynamic management.

[0105] Digital twin simulation model: The present invention uses pre-set equipment data and real-time collected data to generate simulated images through a digital twin simulation model, realizing the comparison between virtual and reality and providing managers with an intuitive visualization tool.

[0106] Image comparison and validity detection: The present invention compares the simulated image with the real-time monitoring image, identifies the difference data, and performs validity detection to detect whether the difference data is real and valid, thereby reflecting the actual operating status of the real equipment.

[0107] Device verification and anomaly assessment: The system verifies the device identification in the difference data, distinguishes between identified devices and unidentified devices, and further analyzes the historical data and location information of unidentified devices to determine whether they are unsafe new devices, and conducts anomaly assessments on the locations of these devices.

[0108] Real-time dynamic management: Through the close combination of the above steps, the present invention realizes real-time dynamic management of photovoltaic power equipment. The system can timely detect equipment anomalies and newly added equipment, thereby ensuring the safe and efficient operation of photovoltaic projects.

[0109] In summary, the present invention not only solves the problem of real-time dynamic management, but also significantly improves the safety and efficiency of photovoltaic projects.

[0110] The technical solution of the present invention does not evaluate risks by directly applying a specific risk assessment model or algorithm, but indirectly monitors and manages the risks of distributed photovoltaic projects through comprehensive steps. The specific implementation methods are as follows:

[0111] First, the distributed photovoltaic data on the user side and the operating data of the photovoltaic power plant equipment are obtained, and key feature information such as equipment location, power generation, operating status, etc. are extracted from them, which provides a basis for subsequent risk assessment.

[0112] Sensors and cameras are installed at key monitoring points to monitor the operating status and environmental conditions of photovoltaic equipment in real time. These real-time monitoring data can reflect the current operating status of the equipment, thereby promptly identifying potential risks.

[0113] The digital twin simulation model is built using the preset equipment data and real-time monitoring data to generate simulated images of the preset state and the real-time state. By comparing the images of these two states, the state changes of the equipment or area can be identified.

[0114] By comparing the simulated images of the preset state and the real-time state, the difference data can be identified. The difference data may reflect abnormal conditions of the equipment or area and is an important basis for risk assessment.

[0115] The difference data is tested for validity and device identification is verified to distinguish between recognized and unrecognized devices. For unrecognized devices, the system will further analyze their historical data and location information to assess whether they are unsafe new devices.

[0116] The locations of newly added devices marked as unknown and unsafe are evaluated as device abnormality areas, allowing for quick location and response to potential security risks.

[0117] The technical solution of the present invention can timely discover potential risks in distributed photovoltaic projects, such as equipment anomalies, unsafe new equipment, etc., and reduce the impact of these risks on system safety and stable operation through real-time monitoring and dynamic management. Therefore, although the technical solution of the present invention does not directly use traditional risk assessment models or algorithms, it indirectly realizes the effective assessment and management of distributed photovoltaic project risks through the implementation of the above process.

[0118] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations, and the above-mentioned embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A distributed photovoltaic project safety management method based on risk assessment, characterized in that: include: Step S101, obtaining user-side distributed photovoltaic data and photovoltaic power plant equipment operation data; Step S102, extracting data features from the distributed photovoltaic data on the user side and the photovoltaic power plant equipment operation data, obtaining the location information of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment, and determining the monitoring points of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment according to the location information of the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment; Step S103, monitoring the user-side distributed photovoltaic equipment monitoring points and the photovoltaic power plant equipment monitoring points to obtain real-time user-side distributed photovoltaic equipment monitoring point data and real-time photovoltaic power plant equipment monitoring point data; Step S104, receiving preset user-side distributed photovoltaic equipment and photovoltaic power plant equipment data, using the preset user-side distributed photovoltaic equipment and photovoltaic power plant equipment data as first simulation data, using real-time user-side distributed photovoltaic equipment monitoring point data and real-time photovoltaic power plant equipment monitoring point data as second simulation data, substituting the first simulation data and the second simulation data into the digital twin simulation model to obtain a first simulation image and a second simulation image; In step S105, the first simulated image is compared with the second simulated image to obtain differentiated image data, the differentiated image data is tested for validity, and verification information of the device corresponding to the differentiated image is generated. If the verification of the device information corresponding to the differentiated image is passed and the differentiated image data is valid after the test, the differentiated image data is used as a newly added monitored photovoltaic device.

2. The distributed photovoltaic project safety management method based on risk assessment according to claim 1, characterized in that: In step S101, it includes: The user-side distributed photovoltaic data includes photovoltaic equipment location information, photovoltaic equipment power generation data, photovoltaic equipment operating status data, photovoltaic equipment operating status data, photovoltaic equipment performance parameters, photovoltaic equipment environmental condition data and photovoltaic equipment grid-connected information; Photovoltaic equipment location information includes photovoltaic panel installation location, photovoltaic panel orientation, and photovoltaic panel inclination; The photovoltaic equipment power generation data includes the daily power generation of photovoltaic equipment, the monthly power generation of photovoltaic equipment, and the annual power generation statistics of photovoltaic equipment; The photovoltaic equipment operation status data includes the working status of the photovoltaic equipment, the online status of the photovoltaic equipment and the fault status of the photovoltaic equipment; Photovoltaic equipment performance parameters include photovoltaic module conversion efficiency and photovoltaic module output power; The photovoltaic equipment environmental condition data includes the temperature at the photovoltaic equipment installation location, the humidity at the photovoltaic equipment installation location, and the irradiance at the photovoltaic equipment installation location; The photovoltaic equipment grid-connected information includes the connection status of the photovoltaic equipment and the power grid, and the photovoltaic equipment power upload information; The photovoltaic power plant equipment operation data includes: photovoltaic power plant equipment location information, photovoltaic power plant equipment operation parameters, photovoltaic power plant equipment environmental data, photovoltaic power plant equipment failure and alarm information; The equipment location information of the photovoltaic power plant includes the locations of the inverters, transformers, and combiner boxes in the photovoltaic power plant.

3. The distributed photovoltaic project safety management method based on risk assessment according to claim 1, characterized in that: In step 102, it includes: Extract data features from the acquired user-side distributed photovoltaic data and photovoltaic power plant equipment operation data, identify and extract photovoltaic equipment location information, which includes the longitude and latitude of the photovoltaic equipment, the installation height of the photovoltaic equipment, and the orientation of the photovoltaic equipment; Determine the location of each photovoltaic device and each device in the photovoltaic power plant according to the extracted data features, wherein the location of each photovoltaic device and each device in the photovoltaic power plant includes the coordinate point of the photovoltaic device; Based on the coordinate points of the photovoltaic equipment, the distributed photovoltaic equipment on the user side and the photovoltaic power plant equipment are partitioned according to the coordinate points to obtain the partitions of the distributed photovoltaic equipment on the user side and the partitions of the photovoltaic power plant equipment; The photovoltaic equipment in the distributed photovoltaic equipment partition on the user side and the photovoltaic power plant equipment partition are used as monitoring points.

4. The distributed photovoltaic project safety management method based on risk assessment according to claim 1, characterized in that: In step 103, it includes: Install monitoring equipment at the selected monitoring points. The monitoring equipment includes sensors and cameras. The sensors and cameras are used to monitor the power generation, operating status, performance parameters and environmental conditions of the distributed photovoltaic equipment on the user side. The sensors and cameras are also used to monitor the operating parameters and environmental data of the photovoltaic power plant equipment. The data collected in real time by the monitoring equipment is processed and analyzed, and the processed and analyzed data is used for comparison of the digital twin simulation model.

5. The distributed photovoltaic project safety management method based on risk assessment according to claim 1, characterized in that: In step 104, it includes: Receiving pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment, the pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment including the location, performance parameters and operating conditions of the photovoltaic equipment, the pre-set data of user-side distributed photovoltaic equipment and photovoltaic power plant equipment constitute first simulation data, and the first simulation data is used to provide an initial virtual environment foundation for the digital twin simulation model; The data collected in real time from the monitoring points of the distributed photovoltaic equipment and photovoltaic power plant equipment at the user side is used as the second simulation data, and the second simulation data is used to reflect the current operating status and environmental conditions of the equipment; The first simulated image displays the operation status of the photovoltaic equipment and the photovoltaic power plant under the preset or initial state, and the second simulated image presents the actual operation status of the current photovoltaic equipment and the photovoltaic power plant in real time.

6. The distributed photovoltaic project safety management method based on risk assessment according to claim 1, characterized in that: In step 105, it includes: The first simulated image is compared with the second simulated image, and when the simulated images are different, the difference data of the simulated images are recorded as difference image data; The distinguishing image data is used as information that the state of the photovoltaic equipment or area does not match the preset state; The validity of the difference image data is checked. If there is no error data in the difference image data, the difference image data is valid data.

7. The distributed photovoltaic project safety management method based on risk assessment according to claim 6, characterized in that: In step 105, it also includes: Verify the device identification corresponding to the difference image data that has passed the validity test. If the identification of the device corresponding to the difference image data passes the verification by the background control end, the device is marked as a recognized device. If the identification of the device corresponding to the distinguishing image data fails to pass the verification by the background control terminal, the device is marked as an unrecognized device; Retrieve the historical data and location data of the unidentified device, determine the time when the initial data of the unidentified device was generated, retrieve the photovoltaic equipment information around the location of the unidentified device, obtain the device data set of the area to which the unknown device belongs, match the device data set of the area to which the unknown device belongs with the distributed photovoltaic data on the user side and the equipment operation data of the photovoltaic power plant, and obtain the matching result of the unknown device; Devices that are not successfully matched in the unknown device matching results are marked as unknown unsafe new devices, and the unknown unsafe new device information is fed back to the background control end; The location of the photovoltaic equipment corresponding to the unknown unsafe new equipment is assessed as an equipment abnormality area.

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