Photovoltaic power station cloud edge collaborative control system

Abstract

The application provides a photovoltaic power station cloud edge collaborative control system, and belongs to the technical field of photovoltaic power station information transmission. The photovoltaic power station cloud edge collaborative control system comprises a photovoltaic power station data transmission system and a cloud end management control system which are communicatively connected. The photovoltaic power station data transmission system is used for collecting control data of an inverter, production data of the inverter and electrical equipment and monitoring data of monitoring equipment, and performing analysis, calculation, diagnosis and summary processing on the data, obtaining a SAMA logic diagram of distribution scheduling instructions, production data summary results and corresponding alarm information, and sending the data to the cloud end management control system for display. The SAMA logic diagram of distribution scheduling instructions is debugged and modified according to the production data summary results, and the modified SAMA logic diagram of distribution scheduling instructions is sent to an inverter data rapid transmission module. The data of the photovoltaic power station can be quickly refreshed, the stability of the system is ensured, and the operation and maintenance management efficiency of the photovoltaic power station can be improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power plant information transmission technology, and more specifically to a cloud-edge collaborative control system for photovoltaic power plants. Background Technology

[0002] Developing renewable energy and pursuing a low-carbon economic development path has become a fundamental consensus in international energy development and economic transformation. Renewable energy has become a major strategic initiative for global energy transformation and achieving climate change goals. The basic trend of global energy transformation is to shift from a fossil fuel system to a low-carbon energy system, ultimately entering an era of sustainable energy dominated by renewable energy. Therefore, the demand for automatic control systems for new energy power plants is growing rapidly.

[0003] Although existing photovoltaic (PV) power plant coordination and control systems have been developed, the limited power generation capacity of individual PV power generation units in new energy power plants, coupled with their decentralized deployment (i.e., PV power plants consist of multiple power generation units), necessitates optimized allocation of power generation from each unit within the power plant after the total power output is allocated by the dispatch center. This complexity results in a complex network architecture and demanding data processing requirements for existing PV power plant coordination and control systems. Consequently, these systems suffer from issues such as slow data refresh due to insufficient server resources, frequent refresh interruptions, and system crashes, hindering efficient operation and maintenance management of PV power plants. Summary of the Invention

[0004] The purpose of this invention is to provide a cloud-edge collaborative control system for photovoltaic power plants to solve the problem of inefficient operation and maintenance management of photovoltaic power plants.

[0005] To achieve the above objectives, embodiments of the present invention provide a cloud-edge collaborative control system for a photovoltaic power station, comprising:

[0006] A photovoltaic power station data transmission system and a cloud management and control system are connected via communication; the photovoltaic power station data transmission system includes an inverter data fast transmission module, a production data transmission module, and an auxiliary data transmission module.

[0007] The production data transmission module is used to collect production data of inverters and electrical equipment, and send the collected production data to the inverter data fast transmission module and the auxiliary data transmission module; and to summarize the collected production data of inverters and electrical equipment to obtain a production data summary result, and send the production data summary result to the cloud management and control system.

[0008] The inverter data fast transmission module is used to collect control data from the inverter, analyze and calculate the collected control data from the inverter and the received production data from the inverter and electrical equipment, compile the SAMA logic diagram of the allocation and scheduling instructions, and send the SAMA logic diagram of the allocation and scheduling instructions to the cloud management and control system.

[0009] The auxiliary data transmission module is used to collect monitoring data from the monitoring equipment, analyze and diagnose the collected monitoring data and the received production data from the inverter and electrical equipment, generate corresponding alarm information, and send the corresponding alarm information to the cloud management and control system.

[0010] The cloud-based management and control system is used to display the SAMA logic diagram of the allocation and scheduling instructions, the production data summary results, and the corresponding alarm information; and to debug and modify the SAMA logic diagram of the allocation and scheduling instructions according to the production data summary results to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and send the modified SAMA logic diagram of the allocation and scheduling instructions to the inverter data fast transmission module.

[0011] Optionally, the photovoltaic power station cloud-edge collaborative control system is communicatively connected to the operation and maintenance management system; the operation and maintenance management system is communicatively connected to the mobile terminal device.

[0012] The photovoltaic power station cloud-edge collaborative control system is used to send the corresponding alarm information to the operation and maintenance management system;

[0013] The operation and maintenance management system is used to generate a repair work order based on the alarm information and send the repair work order to the mobile terminal device.

[0014] Optionally, the inverter data fast transmission module includes: an inverter, a distributed control system, and a first edge production management module; the cloud management control system includes a first cloud production management module; the distributed management control system includes a virtual data processing unit and a real data processing unit; the virtual data processing unit is communicatively connected to the inverter and the real data processing unit; the first edge production management module is communicatively connected to the first cloud production management module and the real data processing unit.

[0015] The inverter is used to generate control data for the inverter and send the control data of the inverter to the virtual data processing unit;

[0016] The virtual data processing unit is used to send the control data of the inverter to the real data processing unit;

[0017] The real data processing unit is used to send the control data of the inverter to the first edge production management module;

[0018] The first edge production management module is used to receive the production data of the inverter and electrical equipment sent by the production data transmission module; and to analyze and calculate the production data of the inverter and electrical equipment and the control data of the inverter, compile the SAMA logic diagram of the allocation and scheduling instructions, and send the SAMA logic diagram of the allocation and scheduling instructions to the first cloud production management module.

[0019] The first cloud-based production management module is used to display the SAMA logic diagram of the allocation and scheduling instructions; and to debug and modify the SAMA logic diagram of the allocation and scheduling instructions according to the production summary results, so as to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and send the modified SAMA logic diagram of the allocation and scheduling instructions to the first edge production management module.

[0020] Optionally, the production data transmission module includes: an inverter, electrical equipment, and a second-side production management module; the cloud management and control system includes a second cloud production management module; the second-side production management module is communicatively connected to the inverter, electrical equipment, and the second cloud production management module respectively;

[0021] The second edge production management module is used to collect and send production data of the inverter and electrical equipment; to summarize and process the collected production data of the inverter and electrical equipment to obtain a production data summary result; and to send the production data summary result to the second cloud production management module.

[0022] The second cloud-based production management module is used to display the aggregated production data.

[0023] Optionally, the auxiliary data transmission module includes a monitoring device and an edge security management module; the cloud management and control system includes a cloud security management module; the edge security management module is communicatively connected to the monitoring device and the edge security management module.

[0024] The monitoring device is used to generate monitoring data and send the monitoring data to the edge security management module.

[0025] The edge security management module is used to receive production data of the inverter and electrical equipment sent by the production data transmission module; and to analyze and diagnose the production data of the inverter and electrical equipment and the monitoring data of the monitoring equipment, generate the corresponding alarm information; and send the alarm information to the cloud security management control module.

[0026] The cloud-based security management module is used to display the corresponding alarm information.

[0027] Optionally, the first edge production management module is further configured to send the SAMA logic diagram of the modified allocation and scheduling instruction to the real data processing unit;

[0028] The real data processing unit is also used to allocate the modified SAMA logic diagram of the allocation scheduling instruction, obtain the allocated scheduling instruction, and send the allocated instruction to the virtual data processing unit.

[0029] The virtual data processing unit is also used to send the allocated scheduling instructions to the inverter;

[0030] The inverter is also used to respond according to the allocated scheduling instructions.

[0031] Optionally, the communication protocol between the inverter and the virtual data processing can be either UDP or CAN.

[0032] Optionally, the communication protocol between the inverter and the electrical equipment and the second production management module is either MODBUS-TCP or IEC104.

[0033] Optionally, the communication connection between the monitoring device and the edge security management module can be any one of LoRa, WIFI, or 4 / 5G.

[0034] Optionally, the communication connection between the first edge production management module and the first cloud production management module is a dedicated power line communication connection; the communication connection between the second edge production management module and the second cloud production management module is a dedicated power line communication connection; and the communication connection between the edge security management module and the cloud security management module is a public network dedicated line communication connection.

[0035] In this invention, a photovoltaic power station cloud-edge collaborative control system is constructed by designing a photovoltaic power station data transmission system and a cloud management and control system connected by communication. The photovoltaic power station cloud-edge collaborative control system includes: a photovoltaic power station data transmission system for collecting control data from inverters, production data from inverters and electrical equipment, and monitoring data from monitoring equipment; analyzing, calculating, diagnosing, and summarizing this data to obtain a SAMA logic diagram for allocation and scheduling instructions, a summary of production data, and corresponding alarm information; and sending this information to the cloud management and control system for display. Based on the summary of production data, the SAMA logic diagram for allocation and scheduling instructions is debugged and modified, and the modified SAMA logic diagram is sent to the inverter data fast transmission module. This allows for rapid updating of photovoltaic power station data, ensuring system stability and improving the efficiency of photovoltaic power station operation and maintenance management.

[0036] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0038] Figure 1 This is a schematic diagram of the first system architecture of the cloud-edge collaborative control system for a photovoltaic electric field provided in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the second system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the third system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the fourth system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the fifth system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in this embodiment of the invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Photovoltaic power plant cloud-edge collaborative control system; 2. Operation and maintenance management system; 3. Mobile terminal equipment; 10. Photovoltaic power plant data transmission system; 20. Cloud management and control system; 110. Inverter data fast transmission module; 111. Inverter; 112. Distributed control system; 113. First edge production management module; 120. Production data transmission module; 121. Electrical equipment; 122. Second edge production management module; 130. Auxiliary data transmission module; 131. Monitoring equipment; 132. Edge safety management module; 210. First cloud production management module; 220. Second cloud production management module; 230. Cloud safety management module. Detailed Implementation

[0045] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0047] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0048] To facilitate understanding of the inventive concept of this invention, the following description is provided:

[0049] This solution proposes a cloud-edge collaborative integrated control system based on "distributed control and centralized management." This involves deploying a large amount of complex, real-time-critical data processing on distributed edge devices. The edge devices then upload necessary real-time data, aggregated statistical results, and fault alarm information to the cloud. The cloud is responsible for all data collection, processing, analysis, aggregation, storage, and display at the access sites, and also interfaces with maintenance, operation, and management systems.

[0050] The concept of cloud-edge collaboration is integrated into the design and implementation of all functional modules in this solution. In addition to standard production data analysis and diagnostic functions, management area functions, such as equipment defect management, intelligent security, and drone inspections, fully utilize the cloud-edge collaboration mechanism to maximize its synergistic effects. For example, in intelligent security, video stream personnel behavior analysis can be deployed at the edge, sending alarm information and violation images or short videos back to the cloud for alerting and display. Similarly, drone inspections can utilize the edge data processing unit to download and analyze inspection footage, or the prefabricated cabin of the edge processing unit can be used as a drone bay to transmit analysis results to the cloud.

[0051] The following describes in detail the system architecture and implementation process of the cloud-edge collaborative control system for photovoltaic power plants through several examples.

[0052] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the first system architecture of the cloud-edge collaborative control system for a photovoltaic power plant provided in this embodiment of the invention. The photovoltaic power plant cloud-edge collaborative control system 1 includes: a photovoltaic power plant data transmission system 10 and a cloud management and control system 20 connected via communication; the photovoltaic power plant data transmission system 10 includes an inverter data fast transmission module 110, a production data transmission module 120, and an auxiliary data transmission module 130; the production data transmission module 120 is used to collect production data from the inverter 111 and electrical equipment 121, and send the collected production data to the inverter data fast transmission module 110 and the auxiliary data transmission module 130; and to summarize and process the collected production data from the inverter 111 and electrical equipment 121 to obtain a production data summary result, and send the production data summary result to the cloud management and control system 20; the inverter data fast transmission module 110 is used to collect control data from the inverter 111, and to process the collected control data from the inverter 111 and the received data from the inverter 111 and electrical equipment 121. The system analyzes and calculates production data, compiles the SAMA logic diagram of the allocation and scheduling instructions, and sends the SAMA logic diagram of the allocation and scheduling instructions to the cloud management and control system 20. The auxiliary data transmission module 130 is used to collect monitoring data from the monitoring device 131, and analyzes and diagnoses the collected monitoring data and the received production data from the inverter 111 and electrical equipment 121 to generate corresponding alarm information. The corresponding alarm information is sent to the cloud management and control system 20. The cloud management and control system 20 is used to display the SAMA logic diagram of the allocation and scheduling instructions, the summary results of production data, and the corresponding alarm information. The system also debugs and modifies the SAMA logic diagram of the allocation and scheduling instructions based on the summary results of production data to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and sends the modified SAMA logic diagram of the allocation and scheduling instructions to the inverter data fast transmission module 110.

[0053] A photovoltaic (PV) power station is a power generation system that utilizes solar energy, employs special materials such as crystalline silicon panels, inverters, and other electronic components, and is connected to the power grid to transmit electricity to it. The entire PV power station can be viewed as a single system, which basically consists of solar cell arrays, combiner boxes, DC distribution cabinets, inverters, AC distribution cabinets, solar tracking control systems, grid connection systems (including voltage boosting and metering equipment), monitoring equipment, and lightning protection and grounding devices.

[0054] Inverter 111 generates control data and production data; combiner boxes, DC distribution cabinets, AC distribution cabinets, etc., are collectively referred to as electrical equipment 121, which generates production data; monitoring equipment 131 generates monitoring data. Therefore, the cloud-edge collaborative control system 1 of the photovoltaic power station in this embodiment of the invention divides the data into three categories according to the importance and business level of the data generated by the equipment of the photovoltaic power station: one category is control data generated by inverter 111, the second category is production data generated by inverter 111 and electrical equipment 121, and the third category is monitoring data generated by monitoring equipment 131.

[0055] Electrical equipment 121 refers to the equipment in a photovoltaic power station that enables the normal operation and transmission of electricity, including but not limited to box-type transformers, electrical automation of step-up substations, and five-prevention workstations.

[0056] Monitoring equipment 131 refers to equipment used to monitor the operation of photovoltaic power plants, including but not limited to sensors, cameras, drones, etc.

[0057] Control data refers to data related to inverter control, acquired at millisecond-level frequency, including but not limited to active power, reactive power, active power commands, reactive power commands, and inverter start-up and shutdown control commands.

[0058] Production data refers to the data generated by inverters and electrical equipment during the power generation process, including but not limited to inverter current, inverter three-phase voltage, inverter alarm point data, inverter daily power generation, second-level frequency acquisition, main transformer high-voltage side ab line voltage, main transformer high-voltage side bc line voltage, main transformer high-voltage side A line voltage, main transformer low-voltage side A line voltage, main transformer low-voltage side ab line voltage, main transformer body oil level abnormal alarm, transformer body pressure release alarm, transformer winding temperature too high alarm, etc.

[0059] Monitoring data refers to the data collected by monitoring equipment during the power generation process of a photovoltaic power station, including but not limited to fire alarms, weather forecasts, video surveillance, security management data, and drone inspections.

[0060] It should be noted that since photovoltaic power plants consist of multiple power generation units, the sheer number of these units leads to a complex control network and high demands on data processing capabilities. Therefore, this embodiment of the invention establishes a collaborative control system between a cloud-based management and control system 20 and a photovoltaic power plant data transmission system 10 to process photovoltaic power plant data. Specifically, the photovoltaic power plant data transmission system 10 performs various processing tasks such as analysis, calculation, and aggregation, while the cloud-based management and control system 20 only receives the processed data. This eliminates the need for the cloud to process massive amounts of data; instead, it performs only display and comprehensive processing.

[0061] Different devices in a photovoltaic (PV) power plant generate different types of data. For example, the active power control data generated by the inverter (control data refers to data related to inverter control, collected at millisecond frequencies, including but not limited to active power, reactive power, active power commands, reactive power commands, and inverter start-up and shutdown control commands) is crucial for the operation and control of the PV power plant. Since the operation and control of the PV power plant are critical to its normal operation, the control data generated by the inverter needs to be transmitted at millisecond speeds to achieve rapid response and ensure the normal operation of the PV power plant. The production data generated by the inverter and electrical equipment only reflects the operating and production status of the PV power plant equipment and is used as a basis for diagnosing and scheduling the PV power plant; it does not require a fast transmission speed. The monitoring data generated by the monitoring equipment only assists in the normal operation of the PV power plant and also does not require a fast transmission speed. If different types of data are transmitted together, the production data from the inverter and electrical equipment, and the monitoring data from the monitoring equipment, will consume excessive resources and bandwidth, leading to the inability to transmit and process the inverter's control data in a timely manner, thus reducing the efficiency of transmitting and managing the massive amounts of data in the PV power plant.

[0062] Therefore, in order to enable the reasonable transmission and management of different data from a photovoltaic power station, it is necessary to establish three relatively independent data transmission channels to transmit the control data of the inverter, the production data generated by the inverter and electrical equipment, and the monitoring data generated by the monitoring equipment, respectively. The three transmission channels are the inverter data fast transmission module 110, the production data transmission module 120, and the auxiliary data transmission module 130.

[0063] In one embodiment, the photovoltaic power station data transmission system 10 adopts a star and ring network structure. At the edge, multiple substation edge systems are constructed based on the photovoltaic power stations connected to the 35kV bus, each step-up substation, and corresponding monitoring equipment. The control data generated by the inverter 111 is connected to the first edge production management module 113. The production data generated by the inverter 111 and the production equipment 121 is mainly connected to the second edge production management module 122 through the remote control device. At the same time, it is connected to the corresponding edge safety management module 132 through the isolation device. Then, it is sent up layer by layer from 35kV to 330kV to the dedicated power line and public network of the power grid dispatch. Horizontally, the system security is partitioned by deploying firewalls and isolation gates.

[0064] In one embodiment, the cloud management and control system 20 adopts a dual-network redundancy structure, deploying data and application servers and switches to build a cloud monitoring system. It is divided into a first cloud production management module 210, a first cloud production management module 220, and a cloud security management module 230 through forward and reverse isolation devices and firewalls. The first cloud production management module 210 is connected to the first edge production management module 113 through the deployment of vertical encryption and dedicated power lines. The second cloud production management module 220 is connected to the first edge production management module 122 through the deployment of vertical encryption and dedicated public network lines. The edge security management module 132 is connected to the site cloud security management module 230 through the deployment of firewalls and dedicated public network lines.

[0065] The production data summary result refers to the result obtained after analyzing, calculating, and summarizing the production data generated by inverters and electrical equipment. For example, if a single inverter generates 2 kWh of electricity per day, and the photovoltaic power station has 100 inverters, then the total daily power generation of the photovoltaic power station is 2 x 100 = 200 kWh, and 200 kWh is the production data summary result.

[0066] Alarm information refers to the results of diagnosing monitoring data generated by monitoring equipment. For example, if a drone captures footage of a fire at a photovoltaic power plant, the captured footage can be image-recognized and analyzed to determine the location of the fire and other information, and then an alarm can be sent out so that staff can promptly go to the scene to handle the situation.

[0067] Understandably, the scheduling commands generated by analyzing and calculating the control data produced by the inverter 111 are often inaccurate, and the alarm information after diagnosing the monitoring data generated by the monitoring device 131 is also often inaccurate. Therefore, it is necessary to use the production data generated by the inverter 111 and the electrical equipment 112 as a basis to accurately calculate the scheduling commands and alarm information. Thus, the production data module 120 needs to be communicatively connected to both the inverter data fast transmission module 110 and the auxiliary data transmission module 130 to achieve data interaction.

[0068] Specifically, the inverter data transmission module 110 collects control data generated by the inverter 110 and receives production data generated by the inverter and electrical equipment sent by the production data transmission module 120. Then, it analyzes and calculates the control data and the production data generated by the inverter and electrical equipment, compiles the SAMA logic diagram of the allocation and scheduling instructions, and then sends the SAMA logic diagram of the allocation and scheduling instructions to the cloud management and control system 20. The cloud management and control system 20 debugs and modifies the SAMA logic diagram of the allocation and scheduling instructions to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and sends the modified SAMA logic diagram of the allocation and scheduling instructions to the inverter data fast transmission module 110.

[0069] Specifically, the production data transmission module 120 collects the production data generated by the inverter 111 and electrical equipment 121, and sends the production data to the inverter data fast transmission module 110 and auxiliary data transmission module 130. It also performs data format unification, calculation and summary processing on the generated data to obtain the production data summary result. Then, the production data summary result is sent to the cloud management and control system 20, and the cloud management and control system 20 displays the production data summary result.

[0070] Specifically, the auxiliary data transmission module 130 collects the monitoring data of the monitoring device 131 and receives the production data of the inverter 111 and electrical equipment 121 sent by the production data transmission module 120. Then, it diagnoses the monitoring data and production data, obtains alarm information, and sends it to the cloud management and control system 20. The cloud management and control system 20 displays the alarm information.

[0071] In this embodiment, a photovoltaic power plant data transmission system 10 and a cloud management and control system 20 are established. The photovoltaic power plant data transmission system 10 divides the data generated by the photovoltaic power plant equipment into three categories: control data, production data, and monitoring data. Then, an inverter data fast transmission module 110, a production data transmission module 120, and an auxiliary data transmission module 130 are established to transmit control data, production data, and monitoring data separately, and perform calculation, analysis, diagnosis, and summary processing on them. The results of the calculation, analysis, diagnosis, and summary processing are then sent to the cloud management and control system 20 for display. This avoids the problem of complex control network caused by transmitting massive amounts of data together, thereby enabling the photovoltaic power plant data to be refreshed quickly, ensuring system stability, and improving the operation and maintenance management efficiency of the photovoltaic power plant.

[0072] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the second system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in an embodiment of the present invention.

[0073] Optionally, the photovoltaic power station cloud-edge collaborative control system 1 is communicatively connected to the operation and maintenance management system 2; the operation and maintenance management system 2 is communicatively connected to the mobile terminal device 3;

[0074] The photovoltaic power station cloud-edge collaborative control system 1 is used to send the corresponding alarm information to the operation and maintenance management system 2;

[0075] The operation and maintenance management system 2 is used to generate maintenance work orders based on alarm information and send the maintenance work orders to mobile terminal devices 3.

[0076] Operation and maintenance management system 2 refers to a system that performs operation and maintenance management of equipment based on alarm information.

[0077] Mobile terminal device 3 includes, but is not limited to, mobile phones, tablet computers, etc., which are not limited in this embodiment.

[0078] Understandably, the user of mobile terminal device 3 is a maintenance worker at a photovoltaic power station.

[0079] Specifically, after receiving the alarm information sent by the auxiliary data transmission module 130, the cloud management and control system 20 also needs to send the alarm information to the operation and maintenance management system 2. Then, the operation and maintenance management system 2 allocates the alarm information, generates a maintenance work order, and sends it to the mobile terminal device 3 of the corresponding maintenance personnel.

[0080] In this embodiment, by designing a communication connection between the cloud-edge collaborative control system 1 of the photovoltaic power station and the operation and maintenance management system 2, and a communication connection between the operation and maintenance management system 2 and the mobile terminal device 3, it is possible to generate maintenance work orders based on alarm information and then send the maintenance work orders to the mobile terminal device 3, thereby enabling timely arrangement of maintenance personnel to handle the issues and ensure the normal operation of the photovoltaic power station equipment.

[0081] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the third system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in an embodiment of the present invention.

[0082] Optionally, the inverter data fast transmission module 110 includes: an inverter 111, a distributed control system 112, and a first edge production management module 113; the cloud management control system 20 includes a first cloud production management module 210; the distributed management control system includes a virtual data processing unit (not shown) and a real data processing unit (not shown); the virtual data processing unit (not shown) is communicatively connected to the inverter 111 and the real data processing unit (not shown); the first edge production management module 113 is communicatively connected to the first cloud production management module 210 and the real data processing unit (not shown); the inverter 111 is used to generate control data for the inverter 111 and send the control data of the inverter 111 to the virtual data processing unit (not shown); the virtual data processing unit (not shown) is used to send the control data of the inverter 111 to the real data processing unit (not shown); the real data processing... A unit (not shown) is used to send control data of inverter 111 to the first edge production management module 113; the first edge production management module 113 is used to receive production data of inverter 111 and electrical equipment 121 sent by production data transmission module 120; and to analyze and calculate the production data of inverter 111 and electrical equipment 121 and the control data of inverter 111, compile the SAMA logic diagram of allocation and scheduling instructions, and send the SAMA logic diagram of allocation and scheduling instructions to the first cloud production management module 210; the first cloud production management module 210 is used to display the SAMA logic diagram of allocation and scheduling instructions; and to debug and modify the SAMA logic diagram of allocation and scheduling instructions according to the production summary results, obtain the modified SAMA logic diagram of allocation and scheduling instructions, and send the modified SAMA logic diagram of allocation and scheduling instructions to the first edge production management module 113.

[0083] It should be noted that existing active power regulation technologies in photovoltaic power plants send dispatch commands to the site's AGC (Automatic Generation Control) system. After the AGC system allocates active power, the commands are transmitted to the SCADA (Supervisory Control and Data Acquisition) system and then sent to the inverter equipment. This means that a significant portion of the information transmission time is spent on AGC server processing, and considering the actual response time of the equipment, very little time is left for actual commissioning. Furthermore, since there are multiple inverters in a photovoltaic power plant, achieving rapid transmission of control data from multiple inverters inevitably involves distributed control, while ensuring that the transmission speed between multiple inverters is not affected.

[0084] Because the EDPF-NT system (East Distributed Processing Family-New Technology) independently developed by Guodian Zhishen does not require a one-to-one connection with field devices to control them, it uses a real data processing unit to interact with multiple virtual devices through flexible domain management technology. These virtual devices communicate with the field devices, enabling the real system to logically control them. Furthermore, due to the flexible domain management technology, multiple virtual data processing units operate within a single domain, ensuring that the transmission speeds between the virtual and real systems are roughly the same and do not interfere with each other. Therefore, in this embodiment, the distributed control system 112 can adopt the EDPF-NT system independently developed by Guodian Zhishen to achieve rapid inverter commissioning. Additionally, this embodiment does not specifically limit the distributed control system 112; other similar distributed control systems with the same functions as the EDPF-NT system are also within the scope of this invention, and can be configured according to actual application requirements.

[0085] Both the virtual data processing unit (not shown) and the real data processing unit (not shown) refer to the DPU, but the virtual data processing unit 210 is a virtual DPU and the real data processing unit 220 is a real DPU.

[0086] Among them, DPU (Data Processing Unit) refers to a dedicated processor built around data, which uses a software-defined technology approach to support infrastructure layer resource virtualization and support infrastructure layer services such as storage, security, and quality of service management.

[0087] The first-side production management module 113 refers to a system that receives control data produced by the inverter 111 and production data generated by the inverter 111 and electrical equipment 121 sent by the production data transmission module 120, and performs analysis and calculation.

[0088] The first cloud-based production management module 210 refers to the system in which the first edge-based production management module 113 calculates and analyzes the control data generated by the inverter 111, debugs and modifies the SAMA logic diagram of the allocation and scheduling instructions obtained, and issues the modified SAMA logic diagram of the allocation and scheduling instructions.

[0089] Specifically, after the inverter 111 generates control data, it sends it to the virtual data processing unit (not shown). Then, the virtual data processing unit (not shown) sends the control data to the real data processing unit (not shown). Then, the real data processing unit (not shown) sends the control data to the first edge production management module 113. The first edge production management module 113 also receives the generated data from the inverter 111 and the electrical equipment 121 sent by the production data transmission module 120. Then, the first edge production management module 113 analyzes and calculates the control data and production data, compiles the SAMA logic diagram of the allocation and scheduling instructions, and then sends the SAMA logic diagram of the allocation and scheduling instructions to the first cloud production management module 210. The first cloud production management module 210 debugs and modifies the SAMA logic diagram of the allocation and scheduling instructions to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and then sends it down to the first edge production management module 113.

[0090] In one embodiment, the photovoltaic field has multiple power generation units, so there are a pair of inverters connected to it, and each inverter is communicatively connected to a virtual data processing unit (not shown), and the multiple virtual data processing units (not shown) are communicatively connected to a real data processing unit (not shown).

[0091] In this embodiment, due to the establishment of an inverter data fast transmission link 110, which is constructed by the inverter 111, the distributed control system 112 and the first edge production management module 113 connected in sequence through communication, and the first edge production management module 113 connected to the first cloud production management module 210 through communication, the control data generated by the inverter 111 can be compiled into a SAMA logic diagram of allocation and scheduling instructions by the inverter data fast transmission module 110. Then, the first cloud production management module 210 debugs and modifies the SAMA logic diagram of allocation and scheduling instructions to obtain the modified SAMA logic diagram of allocation and scheduling instructions, and sends it to the first edge production management module 113. Since the control data generated by inverter 111 needs to be transmitted in milliseconds to obtain a fast response, and the control data generated by inverter 111 can be transmitted independently through inverter data fast transmission link 110, it avoids the problem of not being processed in time due to transmission together with the production data generated by inverter 111 and electrical equipment 121 and the monitoring data generated by monitoring equipment 131. This enables the control data generated by inverter 111 to be responded to quickly, so as to ensure the normal operation of photovoltaic power station.

[0092] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the fourth system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in this embodiment of the invention.

[0093] Optionally, the production data transmission module 120 includes: an inverter 111, an electrical device 121, and a second-side production management module 122; the cloud management and control system 20 includes a second cloud production management module 220; the second-side production management module 122 is communicatively connected to the inverter 111, the electrical device 121, and the second cloud production management module 220; the second-side production management module 122 is used to collect and send production data from the inverter 111 and the electrical device 121; and to summarize and process the collected production data from the inverter 111 and the electrical device 121 to obtain a production data summary result; and to send the production data summary result to the second cloud production management module 220; the second cloud production management module 220 is used to display the production data summary result.

[0094] The second-side production management module 122 refers to the system that receives production data generated by the inverter 111 and electrical equipment 121, performs summary processing, and sends production data to the inverter data fast transmission module 110 and the auxiliary data transmission system 130.

[0095] The second cloud-based production management module 220 refers to a system that displays the summary results of the production data generated by the second edge production management module 122 from the inverter 111 and electrical equipment 121.

[0096] It should be noted that because the electrical equipment 121 in the photovoltaic power station comes from different manufacturers, and the communication protocols for transmitting data differ between manufacturers, some data cannot be recognized by the system. Therefore, the second-side production management module 122 provided in this example needs to standardize the data format to facilitate calculation and summary processing.

[0097] Specifically, the production data generated by the inverter 111 and electrical equipment 121 is transmitted to the second side-end production management module 122. Then, the second side-end production management module 122 sends the production data generated by the inverter 111 and electrical equipment 121 to the inverter data fast transmission module 110 and the auxiliary data transmission module 130. At the same time, it summarizes the production data generated by the inverter 111 and electrical equipment 121 to obtain the production data summary result. Then, it sends the production data summary result to the second cloud-based production management module 220 for display.

[0098] In this embodiment, a production data transmission module 120 is constructed by establishing communication connections between the inverter 111, the electronic device 121, and the second edge production management module 122, respectively. The second edge production management module 122 is also communication-connected to the second cloud production management module 220. This allows the production data generated by the inverter 111 and the electrical device 121 to be aggregated and processed separately by the second edge production management module 122 to obtain the aggregated production data results. The aggregated production data generated by the inverter 111 and the electrical device 121 is then sent to the inverter data fast transmission module 110 and the auxiliary data transmission module 130. Finally, the second cloud production management module 220 displays the aggregated production data results. Since the production data generated by inverter 111 and electrical equipment 121 only needs to be summarized and displayed on the upper layer, its transmission speed is not very important. Therefore, the production data generated by inverter 111 and electrical equipment 121 is transmitted separately through production data transmission module 120, avoiding the problem of interfering with the transmission of control data generated by inverter 111. Moreover, a series of calculations are completed in the second-side production management module 122, so that the second cloud production management module 220 only needs to display the summary results of production data, thereby saving resources so that the entire cloud management and control system can process other important data, thereby ensuring the normal operation of the entire photovoltaic power station.

[0099] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the fifth system architecture of the cloud-edge collaborative control system for photovoltaic electric fields provided in this embodiment of the invention.

[0100] Optionally, the auxiliary data transmission module 130 includes a monitoring device 131 and an edge security management module 132; the cloud management and control system 20 includes a cloud security management module 230; the edge security management module 132 is communicatively connected to the monitoring device 131 and the edge security management module 132; the monitoring device 131 is used to generate monitoring data and send the monitoring data to the edge security management module 132; the edge security management module 132 is used to receive production data of the inverter 111 and electrical equipment 121 sent by the production data transmission module 120; and to analyze and diagnose the production data of the inverter 111 and electrical equipment 121 and the monitoring data of the monitoring device 131, generate corresponding alarm information; and send the alarm information to the cloud security management and control module; the cloud security management module 230 is used to display the corresponding alarm information.

[0101] The edge safety management module 132 refers to a system that receives monitoring data generated by monitoring equipment 131 and production data generated by inverter 111 and electrical equipment 121 sent by production data transmission module 120, and analyzes and diagnoses the monitoring data and production data.

[0102] The cloud security management module 230 refers to the system that displays the alarm information generated by the edge security management module 132.

[0103] Specifically, the monitoring device 131 generates monitoring data and sends it to the edge security management module 132. Then, the edge security management module 132 receives the production data generated by the inverter 111 and electrical equipment 121 sent by the production data transmission module 120. The edge security management module 132 then analyzes and diagnoses the monitoring data and production data, generates alarm information, and finally sends the alarm information to the cloud security management module 230 through the edge security management module 132. The cloud security management module 230 then displays the alarm information.

[0104] In this embodiment, an auxiliary data transmission module 130 is constructed by establishing a communication connection between the monitoring device 131 and the edge security management module 132, and the edge security management module 132 is also communication-connected to the cloud security management module 230. This allows the monitoring data generated by the monitoring device 131 to be analyzed and diagnosed independently through the auxiliary data transmission module 130, generating alarm information. The edge security management module 132 then sends the alarm information to the cloud security management module 230 for display. Since the monitoring data generated by the monitoring device 131 consists of video surveillance information, weather forecasts, and other information designed to support the normal operation of the photovoltaic power station, its transmission speed is not critical. Therefore, transmitting the monitoring data generated by the monitoring device 131 independently through the auxiliary data transmission module 130 avoids interference with the transmission of control data generated by the inverter 111. Furthermore, since the edge security management module 132 performs a series of calculations, the cloud security management module 230 only needs to display the alarm information, thus saving resources. This allows the entire cloud management and control system to process other important data, ensuring the normal operation of the entire photovoltaic power station's data.

[0105] Optionally, the first-side production management module 113 is further configured to send the modified SAMA logic diagram of the allocation scheduling instruction to the real data processing unit (not shown); the real data processing unit (not shown) is further configured to allocate the modified SAMA logic diagram of the allocation scheduling instruction to obtain the allocated scheduling instruction, and send the allocated instruction to the virtual data processing unit (not shown); the virtual data processing unit (not shown) is further configured to send the allocated scheduling instruction to the inverter 111; the inverter 111 is further configured to respond according to the allocated scheduling instruction.

[0106] It should be noted that, since logic can be built in the real data processing unit (not shown), the modified SAMA logic diagram of the allocation and scheduling instructions can be reasonably allocated to obtain the allocated instructions, and then the allocated instructions are sent to the virtual data processing unit (not shown) to achieve rapid allocation of scheduling instructions.

[0107] Specifically, the first-side production management module 113 sends the SAMA logic diagram of the received modified allocation and scheduling instructions to the real data processing unit (not shown). Then, the real data processing unit (not shown) allocates the SAMA logic diagram of the modified allocation and scheduling instructions to obtain the allocated instructions, and then sends them to each virtual data processing unit (not shown). Each virtual data processing unit (not shown) sends them to the corresponding inverter 111 so that the inverter 111 can respond.

[0108] In this embodiment, by building logic in the real data processing unit (not shown), the SAMA logic diagram that sends the modified allocation and scheduling instructions to the first cloud production management module 210 can be quickly allocated. This avoids the problem in the prior art where the scheduling instructions are all sent from the scheduling to the site AGC system, then the AGC system performs active power allocation, and then the instructions are transmitted to the SCADA system before being sent to the inverter equipment, which affects the transmission speed. This enables the inverter 111 to respond quickly to the scheduling instructions.

[0109] Optionally, the communication protocol between the inverter 111 and the virtual data processing can be either UDP or CAN.

[0110] UDP (User Datagram Protocol) is a connectionless transport layer protocol in the OSI (Open System Interconnection) reference model, providing a simple, unreliable, transaction-oriented message delivery service. It does not generate any extra data and does not retransmit even if a corrupted packet is known to exist. UDP is the best choice when transmission performance is prioritized over transmission integrity.

[0111] CAN (Controller Area Network) is a serial communication network that effectively supports distributed control systems. It includes complete serial data communication, provides real-time support, has a transmission rate of up to 1 Mb / s, and features 11-bit addressing and error detection capabilities.

[0112] In this embodiment, since the control data generated by the inverter 111 requires millisecond-level transmission speed, fast transmission communication protocols such as UDP and CAN are selected as the communication connection method between the inverter 111 and the virtual data processing unit. This enables the control data generated by the inverter 111 to be transmitted quickly and to receive scheduling instructions quickly, thereby enabling the inverter 111 to respond quickly to the scheduling instructions of the photovoltaic power station and thus ensuring the normal operation of the photovoltaic power station.

[0113] Optionally, the communication protocol between the inverter 111 and electrical equipment 121 and the second production management module is either MODBUS-TCP or IEC104.

[0114] Modbus-TCP is a serial communication protocol published in 1979 by Modicon (now Schneider Electric) for communication using programmable logic controllers (PLCs). Modbus has become an industry standard for communication protocols in the industrial field and is now a common connection method between industrial electronic devices.

[0115] IEC 104 refers to the standard for transmitting Application Service Data Units (ASDUs) of IEC 101 using the TCP / IP network protocol. This standard provides the communication protocol basis for the network transmission of telemetry information. By combining the IEC 104 protocol with the IEC 101 protocol for ASDUs, the standardization of the protocol and the reliability of communication can be well guaranteed.

[0116] In this embodiment, by selecting normal transmission communication protocols such as MODBUS-TCP and IEC104 as the communication connection method between the inverter 111 and electrical equipment 121 and the second-side production management module 122, the transmission of production data generated by the inverter 111 and electrical equipment 121 will not occupy the bandwidth of control data generated by the inverter 111, thereby ensuring that the control data generated by the inverter 111 can be transmitted quickly.

[0117] Optionally, the communication connection between the monitoring device 131 and the edge security management module 132 can be any one of LoRa, WIFI, or 4 / 5G.

[0118] LoRa (Long Range Radio) is a low-power local area network wireless standard developed by Semtech. Its biggest feature is that it can transmit over a greater distance than other wireless methods under the same power consumption conditions, achieving a balance between low power consumption and long distance. It can extend the distance of traditional wireless radio frequency communication by 3-5 times under the same power consumption.

[0119] Wi-Fi is an industry standard for wireless network communication defined by IEEE (IEEE 802.11).

[0120] 5G (5th Generation Mobile Communication Technology) is a new generation of broadband mobile communication technology characterized by high speed, low latency and massive connectivity. 5G communication facilities are the network infrastructure for realizing the interconnection of people, machines and things.

[0121] In this embodiment, by selecting communication methods such as LoRa, WIFI, and 4 / 5G as the communication connection methods between the monitoring device 131 and the edge security management module 132, the transmission of monitoring data generated by the monitoring device 131 will not occupy the bandwidth of the control data generated by the inverter 111, thereby ensuring that the control data generated by the inverter 111 can be transmitted quickly, thus ensuring the normal operation of the photovoltaic power station.

[0122] Optionally, the communication connection between the first edge production management module 113 and the first cloud production management module 210 is a dedicated power line communication connection; the communication connection between the second edge production management module 122 and the second cloud production management module 220 is a dedicated power line communication connection; and the communication connection between the edge security management module 132 and the cloud security management module 230 is a dedicated public network line communication connection.

[0123] A dedicated power line is a power supply line specifically erected to supply voltage to a single, dedicated sector.

[0124] Public dedicated power lines refer to power grids supplied by the State Grid or China Southern Power Grid; they are the general term for power grids.

[0125] In this embodiment, a dedicated power line is selected as the communication connection method between the first edge production management module 113 and the first cloud production management module 210, and a public network dedicated line is selected as the communication connection method between the second edge production management module 122 and the second cloud production management module 220, and between the edge security management module 132 and the cloud security management module 230. Since the dedicated power network is a dedicated power supply line for a single proprietary component, only the SAMA logic diagram of the allocation and scheduling instructions sent by the first edge production management module 113 can be transmitted to the first cloud production management module 210. This allows the first cloud production management module 210 to quickly respond to the control data of the inverter 111, enabling the control data of the inverter 111 to be transmitted rapidly, thereby ensuring the normal operation and maintenance management of the photovoltaic power station.

[0126] In one or more of the above embodiments, the photovoltaic power plant cloud-edge collaborative control system 1 can be connected to the energy storage system and the thermal power system to realize functions such as joint operation control and regional energy dispatch.

[0127] The term "substantially constitutes" used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term "may" herein is intended to indicate that any described attribute included by "may" is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0128] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A cloud-edge collaborative control system for a photovoltaic power station, characterized in that, include: A photovoltaic power station data transmission system and a cloud management and control system are connected via communication; the photovoltaic power station data transmission system includes an inverter data fast transmission module, a production data transmission module, and an auxiliary data transmission module. The production data transmission module is used to collect production data of inverters and electrical equipment, and send the collected production data to the inverter data fast transmission module and the auxiliary data transmission module; and to summarize the collected production data of inverters and electrical equipment to obtain a production data summary result, and send the production data summary result to the cloud management and control system. The inverter data fast transmission module is used to collect control data from the inverter, analyze and calculate the collected control data from the inverter and the received production data from the inverter and electrical equipment, compile the SAMA logic diagram of the allocation and scheduling instructions, and send the SAMA logic diagram of the allocation and scheduling instructions to the cloud management and control system. The auxiliary data transmission module is used to collect monitoring data from the monitoring equipment, analyze and diagnose the collected monitoring data and the received production data from the inverter and electrical equipment, generate corresponding alarm information, and send the corresponding alarm information to the cloud management and control system. The cloud-based management and control system is used to display the SAMA logic diagram of the allocation and scheduling instructions, the production data summary results, and the corresponding alarm information; and to debug and modify the SAMA logic diagram of the allocation and scheduling instructions according to the production data summary results to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and send the modified SAMA logic diagram of the allocation and scheduling instructions to the inverter data fast transmission module.

2. The photovoltaic power station cloud-edge collaborative control system according to claim 1, characterized in that, The photovoltaic power station cloud-edge collaborative control system is communicatively connected to the operation and maintenance management system; the operation and maintenance management system is communicatively connected to the mobile terminal device. The photovoltaic power station cloud-edge collaborative control system is used to send the corresponding alarm information to the operation and maintenance management system; The operation and maintenance management system is used to generate a repair work order based on the alarm information and send the repair work order to the mobile terminal device.

3. The photovoltaic power station cloud-edge collaborative control system according to claim 1, characterized in that, The inverter data fast transmission module includes: an inverter, a distributed control system, and a first edge production management module; the cloud management control system includes a first cloud production management module; the distributed control system includes a virtual data processing unit and a real data processing unit; the virtual data processing unit is communicatively connected to the inverter and the real data processing unit; the first edge production management module is communicatively connected to the first cloud production management module and the real data processing unit; The inverter is used to generate control data for the inverter and send the control data of the inverter to the virtual data processing unit; The virtual data processing unit is used to send the control data of the inverter to the real data processing unit; The real data processing unit is used to send the control data of the inverter to the first edge production management module; The first edge production management module is used to receive the production data of the inverter and electrical equipment sent by the production data transmission module; and to analyze and calculate the production data of the inverter and electrical equipment and the control data of the inverter, compile the SAMA logic diagram of the allocation and scheduling instructions, and send the SAMA logic diagram of the allocation and scheduling instructions to the first cloud production management module. The first cloud-based production management module is used to display the SAMA logic diagram of the allocation and scheduling instructions; and to debug and modify the SAMA logic diagram of the allocation and scheduling instructions according to the production data summary results, so as to obtain the modified SAMA logic diagram of the allocation and scheduling instructions, and send the modified SAMA logic diagram of the allocation and scheduling instructions to the first edge production management module.

4. The photovoltaic power station cloud-edge collaborative control system according to claim 3, characterized in that, The production data transmission module includes: an inverter, electrical equipment, and a second-side production management module; the cloud management and control system includes a second cloud production management module; the second-side production management module is communicatively connected to the inverter, electrical equipment, and the second cloud production management module respectively; The second edge production management module is used to collect and send production data of the inverter and electrical equipment; to summarize and process the collected production data of the inverter and electrical equipment to obtain a production data summary result; and to send the production data summary result to the second cloud production management module. The second cloud-based production management module is used to display the aggregated production data.

5. The photovoltaic power station cloud-edge collaborative control system according to claim 4, characterized in that, The auxiliary data transmission module includes a monitoring device and an edge security management module; the cloud management and control system includes a cloud security management module; the edge security management module is communicatively connected to the monitoring device and the cloud security management module. The monitoring device is used to generate monitoring data and send the monitoring data to the edge security management module. The edge safety management module is used to receive production data of the inverter and electrical equipment sent by the production data transmission module; The system analyzes and diagnoses the production data of the inverter and electrical equipment and the monitoring data of the monitoring equipment to generate the corresponding alarm information; and sends the alarm information to the cloud security management module. The cloud-based security management module is used to display the corresponding alarm information.

6. The photovoltaic power station cloud-edge collaborative control system according to claim 3, characterized in that, The first edge production management module is also used to send the modified SAMA logic diagram of the allocation and scheduling instruction to the real data processing unit; The real data processing unit is also used to allocate the modified SAMA logic diagram of the allocation scheduling instruction, obtain the allocated scheduling instruction, and send the allocated scheduling instruction to the virtual data processing unit. The virtual data processing unit is also used to send the allocated scheduling instructions to the inverter; The inverter is also used to respond to the allocated scheduling instructions.

7. The photovoltaic power station cloud-edge collaborative control system according to claim 3, characterized in that, The communication protocol between the inverter and the virtual data processing unit can be either UDP or CAN.

8. The photovoltaic power station cloud-edge collaborative control system according to claim 4, characterized in that, The communication protocol between the inverter and the electrical equipment and the second-side production management module is either MODBUS-TCP or IEC104.

9. The photovoltaic power station cloud-edge collaborative control system according to claim 5, characterized in that, The communication connection between the monitoring device and the edge security management module can be any one of LoRa, WIFI, or 4 / 5G.

10. The photovoltaic power station cloud-edge collaborative control system according to claim 5, characterized in that, The communication connection between the first edge production management module and the first cloud production management module is a dedicated power line communication connection; the communication connection between the second edge production management module and the second cloud production management module is a dedicated power line communication connection; and the communication connection between the edge security management module and the cloud security management module is a public network dedicated line communication connection.

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