Automatic consumption device, method and equipment for distributed photovoltaic transformer area and medium

By adopting automatic absorption devices in distributed photovoltaic platform areas, using the coordinated work of data acquisition, smart energy calculation and control modules, the impact of distributed photovoltaic power generation on the grid stability is solved, and efficient energy utilization and stability improvement in the platform areas is achieved.

CN119651905AActive Publication Date: 2025-03-18PUHUA XUNGUANG (BEIJING) TECH CO LTD

Patent Information

Application Number
CN202411740319.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-03-18
Estimated Expiration
2044-11-29

AI Technical Summary

Technical Problem

The intermittent and volatility power generation characteristics of distributed photovoltaics affect the power quality and stability of the power grid, resulting in the problem of reverse current overload in the station area.

Method used

It provides an automatic absorption device for distributed photovoltaic platform area, including a data acquisition module, a smart energy module and a control module. The data acquisition module collects the operating information of the terminal equipment in the station area through HPLC and/or LoRa, and the smart energy module calculates the absorption value, and sends configuration instructions to the control module according to the absorption value and the threshold relationship to adjust the operating parameters of the terminal equipment in the station area.

Benefits of technology

Through real-time monitoring and dynamic adjustment, the automatic absorption device improves the overall stability and reliability of the distributed photovoltaic platform area, reduces the impact and dependence on the power grid, extends the service life of the equipment, reduces the failure rate, and provides a more stable and continuous power supply.

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Abstract

The invention provides an automatic consumption device, method and equipment for a distributed photovoltaic transformer area and a medium. The automatic consumption device comprises a data acquisition module, a smart energy module and a control module, the data acquisition module is used for acquiring transformer area operation information of transformer area terminal equipment and sending the transformer area operation information to the smart energy module through HPLC and / or LoRa; the smart energy module is used for calculating a consumption value according to the transformer area operation information of the transformer area terminal equipment and sending the consumption value to the control module; the control module is used for sending a configuration instruction to the smart energy module according to the relation between the consumption value and the consumption threshold value, and controlling the smart energy module to adjust the operation parameters of the transformer area terminal equipment. The problem that intermittent and fluctuating power generation characteristics of distributed photovoltaic affect the electric energy quality and stability of a power grid is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to an automatic consumption device, method, equipment and medium for distributed photovoltaic stations. Background Art

[0002] Distributed photovoltaic usually refers to a power generation system that uses distributed resources, has a small installed capacity, and is arranged near the user. It is generally connected to a power grid with a voltage level of less than 35 kV or lower. The installation capacity is small and there are many installation points. It is usually installed on the roof of the residents' own house, and together with the public power grid, it supplies power to nearby users. It is mainly based on the self-use of the user side and the access to the Internet of surplus electricity. It follows the principles of adapting to local conditions, clean and efficient, decentralized layout, and nearby utilization. As an important part of renewable energy, the technological development and application of photovoltaic power generation are of great significance to the realization of sustainable development goals. Distributed photovoltaic is widely used because it can be flexibly deployed on the roofs of buildings. Most of the distributed photovoltaics are connected to the public power grid and supply power to nearby users together with the public power grid. It has relatively small output power, low pollution, outstanding environmental protection benefits, and can alleviate the power shortage in local areas to a certain extent.

[0003] Due to the unique intermittent and fluctuating power generation characteristics of distributed photovoltaics, the large-scale access may cause the power generated by photovoltaic power sources to exceed the local load demand during periods of sufficient sunlight, resulting in reverse power flow, that is, power flows from the distributed photovoltaic system to the power grid. In this case, if the grid's regulation capacity is limited or the load characteristics change suddenly, it may cause reverse overload problems in the substation area. Specifically, the voltage of some nodes is reversed, some lines or equipment in the grid are subjected to excessive current, and the power imbalance is aggravated. This may not only affect the power quality and stability of the grid, but also damage the grid equipment and even threaten the safe operation of the grid.

[0004] Therefore, it is urgently necessary to propose an automatic absorption device, method, equipment and system for distributed photovoltaic areas to solve the technical problem that the intermittent and fluctuating power generation characteristics of distributed photovoltaics affect the power quality and stability of the power grid. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the present disclosure provides an automatic absorption device, method, equipment and medium for a distributed photovoltaic area to solve the technical problem in the related art that the intermittent and fluctuating power generation characteristics of distributed photovoltaics affect the power quality and stability of the power grid.

[0006] One or more embodiments of this specification provide an automatic consumption device for a distributed photovoltaic area, including a data acquisition module, a smart energy module and a control module;

[0007] The data acquisition module is used to collect the operation information of the substation terminal equipment and send it to the smart energy module through HPLC and / or LoRa;

[0008] The smart energy module is used to calculate the consumption value according to the substation operation information of the substation terminal equipment, and send the consumption value to the control module;

[0009] The control module is used to send configuration instructions to the smart energy module according to the relationship between the absorption value and the absorption threshold, and control the smart energy module to adjust the operating parameters of the terminal equipment in the substation.

[0010] Preferably, it includes a data acquisition module, a smart energy module and a control module:

[0011] The data acquisition module is used to collect the operation information of the substation terminal equipment and send it to the smart energy module through HPLC and / or LoRa;

[0012] The smart energy module is used to calculate the consumption value according to the substation operation information of the substation terminal equipment, and send the consumption value to the control module;

[0013] The control module is used to send configuration instructions to the smart energy module according to the relationship between the absorption value and the absorption threshold, and control the smart energy module to adjust the operating parameters of the terminal equipment in the substation.

[0014] Preferably, the control module is specifically configured as follows:

[0015] When the absorption value is less than the absorption threshold, an inverter power reduction instruction is sent to the smart energy module to control the smart energy module to adjust the inverter power of the terminal device in the substation area to reduce one unit;

[0016] When the absorption value is greater than the absorption threshold, an inverter power increase instruction is sent to the smart energy module to control the smart energy module to increase the inverter power of the terminal device in the substation by one unit;

[0017] Among them, according to the configurable increase and decrease units of the inverter and the control module adjusting the one unit, it can be a percentage reduction or a fixed value reduction.

[0018] Preferably, the control module also includes an adjustment feedback unit, which is used to re-acquire the substation operation information to determine the absorption value. If the absorption value is still less than the absorption threshold, it returns to the power reduction link; if the absorption value is greater than the absorption threshold, it returns to the power increase link.

[0019] Preferably, the data acquisition module includes an intelligent fusion terminal and an area concentrator.

[0020] Preferably, the substation terminal equipment includes photovoltaic components, inverters, energy storage components, transformers, grid-connected boxes, protocol converters and electrical equipment.

[0021] Preferably, the inverter converts the direct current in the photovoltaic assembly into alternating current, and performs a local log query of the photovoltaic output through the inverter;

[0022] The protocol converter draws power through the power transmission port of the inverter and the grid-connected box;

[0023] The communication gateway is extended through the communication interface of the inverter;

[0024] The protocol converter communicates with the smart energy module via an HPLC communication link, using LoRa as a backup communication link.

[0025] One or more embodiments of this specification provide a method for automatically absorbing the energy of a distributed photovoltaic area, including the following steps:

[0026] Collect the operation information of the substation terminal equipment and send it through HPLC and / or LoRa;

[0027] Calculate the consumption value according to the substation operation information of the substation terminal equipment;

[0028] A configuration instruction is sent according to the relationship between the absorption value and the absorption threshold, and the operating parameters of the terminal equipment in the substation are adjusted until the absorption value meets the absorption threshold.

[0029] One or more embodiments of the present specification provide a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned automatic absorption method of distributed photovoltaic areas when executing the computer program.

[0030] One or more embodiments of the present specification provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for automatic absorption of distributed photovoltaic stations.

[0031] The automatic absorption device, method, equipment and medium of the distributed photovoltaic area provided by the present disclosure have the advantages that the data acquisition module is used to collect the area operation information of the area terminal equipment and send it to the smart energy module through HPLC and / or LoRa, which can comprehensively collect the operation information of the area terminal equipment, covering all kinds of key data related to absorption. By adopting HPLC and / or LoRa communication methods, the efficiency and stability of data transmission are ensured. Even in a complex area environment, data can be accurately and timely transmitted to the smart energy module; the smart energy module is used to calculate the absorption value according to the area operation information of the area terminal equipment, and send the absorption value to the control module, which comprehensively considers the distributed photovoltaic power generation power in the area, the real-time changes of power load, the status of energy storage equipment and other factors. Through precise calculation, a consumption value that meets the actual situation of the substation can be obtained, thereby providing a scientific basis for subsequent control decisions; the control module is used to send configuration instructions to the smart energy module according to the relationship between the consumption value and the consumption threshold, control the smart energy module to adjust the operating parameters of the substation terminal equipment, and send configuration instructions to the smart energy module according to the relationship between the consumption value and the consumption threshold, thereby realizing the precise adjustment of the operating parameters of the substation terminal equipment. The intelligent and flexible control method effectively improves the comprehensive utilization efficiency of energy in the substation and reduces the impact and dependence on the power grid. The coordinated work of the entire automatic consumption device helps to improve the overall stability and reliability of the distributed photovoltaic substation. Through real-time monitoring and dynamic adjustment, it can respond to various emergencies and abnormal conditions in a timely manner. Reasonable consumption control is also conducive to extending the service life of equipment in the substation and reducing the failure rate of equipment, which improves the overall operation quality and reliability of the substation and provides users with a more stable and continuous power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 A schematic diagram of the structure of an automatic consumption device for a distributed photovoltaic area provided in one or more embodiments of this specification;

[0034] Figure 2 A schematic diagram of the structure of a distributed photovoltaic system provided for one or more embodiments of this specification;

[0035] Figure 3A flow chart of the configuration of a control module of an automatic consumption device for a distributed photovoltaic area provided in one or more embodiments of this specification;

[0036] Figure 4 A management flow chart of an automatic consumption device for a distributed photovoltaic area provided in one or more embodiments of this specification;

[0037] Figure 5 A schematic diagram of the structure of an automatic consumption device for a distributed photovoltaic area provided in one or more embodiments of this specification;

[0038] Figure 6 A schematic diagram of the structure of a computer device provided for one or more embodiments of this specification. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the protection scope of the present invention.

[0040] The present invention is described in detail below in conjunction with specific implementation methods and the accompanying drawings.

[0041] Method Embodiment

[0042] According to an embodiment of the present invention, an automatic consumption device for distributed photovoltaic stations is provided. Figure 1 As shown, it is a structural schematic diagram of the automatic energy consumption device of the distributed photovoltaic area provided in this embodiment. The automatic energy consumption device of the distributed photovoltaic area according to the embodiment of the present invention includes a data acquisition module 11, a smart energy module 12 and a control module 13.

[0043] The data acquisition module 11 is used to collect the area operation information of the area terminal equipment and send it to the smart energy module 12 through HPLC and / or LoRa. The data acquisition module 11 is deployed in each area, including intelligent fusion terminals and area concentrators. The area terminal equipment includes photovoltaic components, inverters, energy storage components, transformers, grid-connected boxes, protocol converters and electrical equipment. It is connected with the transformers, distribution boxes, smart meters and other terminal equipment in the area to collect area operation information such as voltage, current, power factor, active power, reactive power, and the real-time operation status of each electrical equipment. For example, for the distribution box in the office building, the power consumption data of each floor is collected; for the charging piles in the parking lot, the charging power, charging time and other information are collected; for the street lights, their power consumption and lighting time are collected. Part of this data is transmitted through HPLC (High-speed Power Line Carrier Communication) technology using the existing power line network in the park, and the other part is transmitted through LoRa (Long Range Radio, wireless communication technology) to ensure stable and comprehensive data collection and send to the smart energy module 12.

[0044] The smart energy module 12 is used to calculate the absorption value according to the substation operation information of the substation terminal equipment, and send the absorption value to the control module 11. After receiving the substation operation information sent by the data acquisition module 11, the smart energy module 12 calculates the absorption value. For example, it will calculate the current overall power absorption situation based on the real-time power data of each power-consuming equipment and the historical power consumption pattern. If many office equipment and commercial facilities are running at the same time during daytime office hours, the smart energy module 12 will comprehensively calculate that the power absorption value at this time is higher; while in the middle of the night, most of the equipment is turned off, and the absorption value is significantly reduced. At the same time, the smart energy module 12 will also analyze the changing trend of the absorption value to determine whether there is abnormal power consumption, such as the sudden abnormal startup of high-power equipment in a certain area, which causes a sudden increase in the absorption value.

[0045] The control module 13 is used to send configuration instructions to the smart energy module according to the relationship between the absorption value and the absorption threshold, and control the smart energy module 12 to adjust the operating parameters of the terminal equipment in the substation area. The control module 13 pre-sets the absorption threshold, which is determined according to factors such as the power supply contract, energy cost, and equipment safety operation requirements. For example, during periods of tight power supply, the absorption threshold is set relatively low to avoid high electricity charges or power supply risks caused by the power load exceeding the quota allocated by the power company; when the power supply is sufficient and the price is low, the threshold can be appropriately increased to make full use of low-priced power resources.

[0046] When the absorption value calculated by the smart energy module 12 is close to or exceeds the absorption threshold, the control module 13 sends a configuration instruction to the smart energy module 12. The smart energy module 12 adjusts the operating parameters of the terminal equipment in the substation according to the instruction. For example, for some equipment that can be interrupted (such as air conditioners and lighting equipment in some non-critical areas), the smart energy module 12 reduces its operating power or suspends operation for a period of time through control signals to reduce the overall power absorption. For some equipment with energy storage functions (such as energy storage battery systems in the park), the smart energy module 12 controls them to discharge and supplement the power demand, thereby balancing the relationship between the absorption value and the absorption threshold, realizing the optimal allocation and efficient utilization of power resources, reducing the electricity cost of the park, and improving the intelligence level of energy management.

[0047] like Figure 2 As shown, it is a schematic diagram of the structure of the distributed photovoltaic system provided in this embodiment.

[0048] The device provided in this embodiment, the data acquisition module 11, is used to collect the substation operation information of the substation terminal equipment, and send it to the smart energy module through HPLC and / or LoRa, which can comprehensively collect the operation information of the substation terminal equipment, covering various key data related to consumption. By adopting HPLC and / or LoRa communication methods, the efficiency and stability of data transmission are ensured. Even in a complex substation environment, the data can be accurately and timely transmitted to the smart energy module; the smart energy module 12 is used to calculate the consumption value according to the substation operation information of the substation terminal equipment, and send the consumption value to the control module, which comprehensively considers the distributed photovoltaic power generation power in the substation, the real-time changes of the power load, the status of the energy storage equipment and other factors. Through precise calculation, a consumption value that meets the actual situation of the substation can be obtained, thereby providing a scientific basis for subsequent control decisions; the control module 13 is used to send configuration instructions to the smart energy module according to the relationship between the consumption value and the consumption threshold, control the smart energy module to adjust the operating parameters of the substation terminal equipment, and send configuration instructions to the smart energy module according to the relationship between the consumption value and the consumption threshold, thereby realizing the precise adjustment of the operating parameters of the substation terminal equipment. The intelligent and flexible control method effectively improves the comprehensive utilization efficiency of energy in the substation and reduces the impact and dependence on the power grid. The coordinated work of the entire automatic consumption device helps to improve the overall stability and reliability of the distributed photovoltaic substation. Through real-time monitoring and dynamic adjustment, it can respond to various emergencies and abnormal conditions in a timely manner. Reasonable consumption control is also conducive to extending the service life of equipment in the substation and reducing the failure rate of equipment, which improves the overall operation quality and reliability of the substation and provides users with a more stable and continuous power supply.

[0049] In one embodiment, Figure 3As shown in the configuration flow chart of the control module of the automatic consumption device of the distributed photovoltaic area provided in this embodiment, the control module 13 is also configured as follows:

[0050] The visualization unit receives the substation operation information of the substation terminal equipment sent by the smart energy module 12, and displays the substation operation information and the absorption value of the substation terminal equipment through the visualization unit. These substation operation information include data such as voltage, current, power factor, active power, reactive power, etc. of each terminal equipment in the substation (such as transformers, distribution boxes, smart meters, and various types of electrical equipment, etc.), and may also include various aspects such as the real-time operation status of the equipment. By receiving this information, the visualization unit has first-hand information on the operation of the substation equipment, providing a data basis for subsequent display and analysis operations. The personnel of the control module 13 can set the absorption threshold X and the amplitude modulation unit Y through the visualization unit.

[0051] The device provided in this embodiment centrally receives and displays the operation information and consumption value of the substation terminal equipment through a visualization unit. The operator does not need to switch between multiple systems or data sources to view the data, and can flexibly set the consumption threshold X and the amplitude modulation unit Y. This provides a comprehensive and accurate decision-making basis for achieving precise energy regulation. By observing the visualized substation operation information, the equipment fault point or the source of abnormal data can be quickly located.

[0052] In one embodiment, Figure 4 As shown, it is a management flow chart of the automatic consumption device of the distributed photovoltaic system provided in this embodiment, and the control module 13 is specifically configured as follows:

[0053] The smart energy module 12 obtains the substation operation information of the master meter in the data acquisition module, obtains the specific flow direction of the substation and the current capacity of the transformer, and obtains the absorption value.

[0054] When the absorption value is less than the absorption threshold, an inverter power reduction instruction is sent to the smart energy module 12 to control the smart energy module 12 to adjust the inverter power of the terminal device in the substation area to reduce one unit.

[0055] When the absorption value is greater than the absorption threshold, an inverter power increase instruction is sent to the smart energy module 12 to control the smart energy module 12 to adjust the inverter power of the terminal device in the substation area to increase by one unit.

[0056] Among them, according to the configurable increase and decrease units of the inverter and the control module adjusting the one unit, it can be a percentage reduction or a fixed value reduction.

[0057] The device provided in this embodiment can accurately obtain the power flow direction and the current capacity of the transformer based on the operation information of the total meter area of ​​the data acquisition module, so as to accurately calculate the absorption value and perform the up and down control of the inverter power, which can effectively balance the power generation and power consumption in the area. When the absorption value is less than the threshold, the inverter power is lowered to prevent excessive electric energy from being injected into the power grid, causing unstable factors such as reverse flow; when the absorption value is greater than the threshold, the power is increased to timely supplement the power consumption gap, ensure stable power supply, realize accurate energy scheduling and supply and demand balance, and improve energy utilization.

[0058] In one embodiment, the control module 13 also includes an adjustment feedback unit for reacquiring the substation operation information to determine the absorption value. If the absorption value is still less than the absorption threshold, it returns to the power reduction link; if the absorption value is greater than the absorption threshold, it returns to the power increase link.

[0059] In the device provided in this embodiment, the adjustment feedback unit re-determines the absorption value by re-acquiring the operation information of the substation, and can track the changes in the energy supply and demand status in real time. When the absorption value still does not meet the requirements (less than or greater than the absorption threshold), it returns to the corresponding power adjustment link in time to continue to adjust, ensuring that the inverter power can continue to adapt to the actual power demand and power generation situation of the substation, achieving more accurate dynamic matching of energy supply and demand, avoiding the continued existence of excess or insufficient energy supply, and effectively improving energy utilization efficiency.

[0060] In one embodiment, the inverter converts the direct current in the photovoltaic module into alternating current, connects to the grid through a transformer, and performs a local log query of photovoltaic output through the inverter to achieve local power regulation.

[0061] The protocol converter obtains power through the power transmission port of the inverter and the grid-connected box.

[0062] The communication gateway is expanded through the communication interface of the inverter to complete the data link between the protocol converter and the inverter.

[0063] The protocol converter communicates with the smart energy module via an HPLC communication link, using LoRa as a backup communication link.

[0064] The fusion terminal is linked to the smart energy module through the RS485 interface to complete the data interaction between the fusion terminal and the smart energy unit.

[0065] In the device provided in this embodiment, the inverter converts the direct current generated by the photovoltaic module into alternating current. This process realizes the effective conversion of the form of electric energy, so that it can be smoothly connected to the power grid for transmission and use. The transformer is further used to realize the online operation, ensuring that the electric energy is connected to the power grid at a suitable voltage level to meet the access requirements of the power grid, thereby realizing the effective transmission of photovoltaic energy from the power generation end to the power grid, promoting the effective utilization of photovoltaic power generation, and increasing the proportion of renewable energy in the energy supply system. It can perform local log query of photovoltaic output, and provide detailed data records for operation and maintenance personnel. The protocol converter draws electricity through the transmission port and grid-connected box of the inverter. This power-drawing method utilizes the existing power supply lines of the inverter and the grid-connected box, and there is no need to lay power supply lines separately, which simplifies the wiring complexity and reduces the construction cost. The communication interface of the inverter is expanded to complete the data link between the protocol converter and the inverter. This enables the protocol converter to accurately obtain the relevant data of the inverter, further expands the communication interface of the entire system, and the protocol converter communicates with the smart energy module through the HPLC communication link, and uses LoRa as a backup communication link to ensure the continuity of data transmission, improve the reliability of the entire communication system, and reduce the risk of the energy management system failing to operate normally due to communication failures.

[0066] Method Embodiment

[0067] According to an embodiment of the present invention, a method for automatically absorbing the energy of a distributed photovoltaic area is provided. Figure 5 As shown, it is a schematic diagram of the process of the automatic consumption method of the distributed photovoltaic area provided in this embodiment. The automatic consumption method of the distributed photovoltaic area according to the embodiment of the present invention includes the following steps:

[0068] S510, collecting the substation operation information of the substation terminal equipment and sending it through HPLC and / or LoRa.

[0069] S520: Calculate the consumption value according to the substation operation information of the substation terminal equipment.

[0070] S530: Send a configuration instruction according to the relationship between the absorption value and the absorption threshold, and adjust the operating parameters of the terminal equipment in the substation until the absorption value meets the absorption threshold.

[0071] The embodiment of the present invention is an apparatus embodiment corresponding to the above-mentioned method embodiment. The specific operations of the processing steps of each module can be understood by referring to the description of the method embodiment, which will not be repeated here.

[0072] like Figure 6As shown, the present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the automatic absorption method in the above embodiment is implemented, or when the computer program is executed by a processor, the automatic absorption method in the distributed photovoltaic area in the above embodiment is implemented.

[0073] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0074] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and the contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. An automatic consumption device for distributed photovoltaic stations, characterized in that: Including data acquisition module, smart energy module and control module; The data acquisition module is used to collect the operation information of the substation terminal equipment and send it to the smart energy module through HPLC and / or LoRa; The smart energy module is used to calculate the consumption value according to the substation operation information of the substation terminal equipment, and send the consumption value to the control module; The control module is used to send configuration instructions to the smart energy module according to the relationship between the absorption value and the absorption threshold, and control the smart energy module to adjust the operating parameters of the terminal equipment in the substation.

2. The automatic digestion device according to claim 1, characterized in that: The control module is further configured as: Receive the substation operation information of the substation terminal device sent by the smart energy module, and display the substation operation information and the consumption value of the substation terminal device.

3. The automatic digestion device according to claim 1, characterized in that: The control module is specifically configured as follows: When the absorption value is less than the absorption threshold, an inverter power reduction instruction is sent to the smart energy module to control the smart energy module to adjust the inverter power of the terminal device in the substation area to reduce one unit; When the absorption value is greater than the absorption threshold, an inverter power increase instruction is sent to the smart energy module to control the smart energy module to increase the inverter power of the terminal device in the substation by one unit; Among them, according to the configurable increase and decrease units of the inverter and the control module adjusting the one unit, it can be a percentage reduction or a fixed value reduction.

4. The automatic disposal device according to claim 3, characterized in that: The control module also includes an adjustment feedback unit for reacquiring the substation operation information to determine the absorption value. If the absorption value is still less than the absorption threshold, it returns to the power reduction link; if the absorption value is greater than the absorption threshold, it returns to the power increase link.

5. The automatic digestion device according to claim 1, characterized in that: The data acquisition module includes an intelligent fusion terminal and an area concentrator.

6. The automatic digestion device according to claim 1, characterized in that: The substation terminal equipment includes photovoltaic modules, inverters, energy storage modules, transformers, grid-connected boxes, protocol converters and electrical equipment.

7. The automatic digestion device according to claim 1 or 6, characterized in that: The inverter converts the direct current in the photovoltaic module into alternating current, and performs a local log query of the photovoltaic output through the inverter; The protocol converter draws power through the power transmission port of the inverter and the grid-connected box; The communication gateway is extended through the communication interface of the inverter; The protocol converter communicates with the smart energy module via an HPLC communication link, using LoRa as a backup communication link.

8. An automatic consumption method for distributed photovoltaic stations, characterized in that: The following steps are involved: Collect the operation information of the substation terminal equipment and send it through HPLC and / or LoRa; Calculate the consumption value according to the substation operation information of the substation terminal equipment; A configuration instruction is sent according to the relationship between the absorption value and the absorption threshold, and the operating parameters of the terminal equipment in the substation are adjusted until the absorption value meets the absorption threshold.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the automatic consumption method of the distributed photovoltaic area as claimed in claim 8 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, the steps of the automatic consumption method of the distributed photovoltaic area as claimed in claim 8 are implemented.

Citation Information

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