Power grid peak regulation method and device, storage medium and electronic device

Abstract

The invention discloses a power grid peak regulation method and device, a storage medium and an electronic device, and the method comprises the steps: monitoring a first power generation amount corresponding to a photovoltaic array and a second power generation amount corresponding to a coal-fired power plant, and carrying out the matching of the required power amount of a target power grid based on the first power generation amount and the second power generation amount; deploying a third generating capacity according to a matching result to execute electrolytic hydrogen production; wherein the third generating capacity is part or all of the second generating capacity; determining the quantity of first gas generated by electrolytic hydrogen production, and setting the quantity of the first gas as peak regulation energy of the target power grid; and under the condition that it is determined that the required electric quantity is larger than the sum of the first generating capacity and the second generating capacity, the peak regulation energy is used for participating in peak regulation of the power grid.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and more specifically, to a power grid peak regulation method and device, a storage medium, and an electronic device. Background Art

[0002] With the widespread application of clean energy, photovoltaic energy plays a core role in energy transformation as an important means. However, the intermittent and instability of photovoltaic energy poses a challenge to the stable operation of the power grid. At the same time, although coal-fired power plants can provide stable electricity, they are facing the pressure of emission reduction and the need to adjust the energy structure. As an effective way to store electricity and balance loads, water electrolysis hydrogen production technology has attracted attention in recent years, but its coordinated application with photovoltaic and coal-fired power plants is still in the exploratory stage. At present, there is still a lack of a system that effectively combines photovoltaic, coal-fired power plants and water electrolysis hydrogen production technology to achieve intelligent matching of electricity supply and demand, improve energy utilization efficiency and promote an environmentally friendly energy structure.

[0003] With regard to the problem that the process of achieving a dynamic balance between power supply and demand in related technologies is relatively complicated, no effective solution has been proposed so far.

[0004] Therefore, it is necessary to improve the existing related technologies to overcome the above-mentioned defects in the related technologies and meet the needs of current actual production. Summary of the invention

[0005] The embodiments of the present application provide a power grid peak-shaving method and device, a storage medium, and an electronic device to at least solve the problem in the related art that the process of achieving a dynamic balance between power supply and demand is relatively complicated.

[0006] According to one aspect of an embodiment of the present application, a power grid peak-shaving method is provided, including: monitoring a first power generation corresponding to a photovoltaic array and a second power generation corresponding to a coal-fired power plant, and matching the power demand of a target power grid based on the first power generation and the second power generation; allocating a third power generation to perform electrolytic hydrogen production according to the matching result; wherein the third power generation is part or all of the power of the second power generation; determining the amount of a first gas generated by electrolytic hydrogen production, and setting the amount of the first gas as a peak-shaving energy source for the target power grid; and when it is determined that the power demand is greater than the sum of the first power generation and the second power generation, using the peak-shaving energy to participate in power grid peak-shaving.

[0007] In an exemplary embodiment, the target power grid's demanded electricity is matched based on the first power generation and the second power generation, including: when the second power generation is greater than or equal to the demanded electricity, instructing the photovoltaic array to release the grid-connected power transmission state and connecting the output power of the photovoltaic array to multiple electrolytic cells; when the second power generation is less than the demanded electricity, determining the demanded power generation to be supplemented according to the absolute value of the difference between the second power generation and the demanded electricity, and determining the third power generation according to the demanded power generation to be supplemented and the first power generation.

[0008] In an exemplary embodiment, when it is determined that the demanded electricity is greater than the sum of the first power generation and the second power generation, peak-shaving energy is used to participate in grid peak-shaving, including: determining the remaining demanded electricity after deducting the first power generation and the second power generation; when determining the power generation efficiency corresponding to hydrogen, calculating the amount of second gas required for the remaining demanded electricity; and extracting the second gas amount from the first gas amount for grid peak-shaving.

[0009] In an exemplary embodiment, after using peak-shaving energy to participate in grid peak-shaving, the above method also includes: obtaining a peak-shaving result of the grid peak-shaving; when the peak-shaving result is a successful peak-shaving, generating a target peak-shaving strategy according to the peak-shaving process corresponding to the peak-shaving result; when the peak-shaving result is a failed peak-shaving, instructing the coal-fired power plant to increase the second power generation.

[0010] In an exemplary embodiment, after allocating the third power generation according to the matching results to perform electrolytic hydrogen production, the method further includes: obtaining the catalyst type corresponding to the electrolytic hydrogen production and the control strategy of multiple electrolyzers; determining the real-time electrolysis rate according to the third power generation and the catalyst type; adjusting the control strategy based on the real-time electrolysis rate to obtain the target control strategy.

[0011] In an exemplary embodiment, when it is determined that the demanded power is less than the sum of the first power generation and the second power generation, it is determined whether the photovoltaic array is at its peak output; when the photovoltaic array is at its peak output, a reduction instruction is issued to the coal-fired power plant, wherein the reduction instruction is used to control the coal-fired power plant to reduce its power generation; when the photovoltaic array is not at its peak output, the proportion of the first power generation and the second power generation in the demanded power is balanced to obtain a power supply strategy.

[0012] According to another aspect of the embodiment of the present application, a power grid peak-shaving device is also provided, including: a monitoring module, used to monitor a first power generation corresponding to a photovoltaic array and a second power generation corresponding to a coal-fired power plant, and match the power demand of a target power grid based on the first power generation and the second power generation; an allocation module, used to allocate a third power generation according to the matching result to perform electrolytic hydrogen production; wherein the third power generation is part or all of the second power generation; a first determination module, used to determine the amount of a first gas generated by electrolytic hydrogen production, and set the first gas amount as the peak-shaving energy of the target power grid; a participation module, used to use the peak-shaving energy to participate in power grid peak-shaving when it is determined that the power demand is greater than the sum of the first power generation and the second power generation.

[0013] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned power grid peak regulation method when running.

[0014] According to another aspect of the embodiments of the present application, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the power grid peak regulation method through the computer program.

[0015] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the above-mentioned power grid peak regulation method is implemented.

[0016] Through this application, the first power generation corresponding to the photovoltaic array and the second power generation corresponding to the coal-fired power plant are monitored, and the power demand of the target power grid is matched based on the first power generation and the second power generation; the third power generation is allocated according to the matching result to perform electrolytic hydrogen production; wherein the third power generation is part or all of the power of the second power generation; the amount of the first gas generated by electrolytic hydrogen production is determined, and the amount of the first gas is set as the peak-shaving energy of the target power grid; when it is determined that the power demand is greater than the sum of the first power generation and the second power generation, the peak-shaving energy is used to participate in the peak-shaving of the power grid. The above technical solution solves the problem that the process of achieving a dynamic balance between power supply and demand is relatively complicated. Furthermore, by monitoring the power generation of photovoltaic and coal-fired power plants, the power grid demand is dynamically matched, and the excess power of the coal-fired power plant is used for electrolytic hydrogen production, and hydrogen is used as a peak-shaving energy to balance power supply and demand and improve the flexibility of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a hardware structure block diagram of a computer terminal of a power grid peak regulation method according to an embodiment of the present application;

[0020] Figure 2 is a flow chart of a power grid peak regulation method according to an embodiment of the present application;

[0021] Figure 3 It is a logical schematic diagram of a photovoltaic-electrolysis hydrogen production and coal-fired power plant coordinated peak-shaving system according to an embodiment of the present application;

[0022] Figure 4 It is a flow chart of a method for coordinated peak regulation of photovoltaic-electrolysis hydrogen production and coal-fired power plant according to an embodiment of the present application;

[0023] Figure 5 It is a structural block diagram of a power grid peak-shaving device according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal, a mobile terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 1 is a hardware structure block diagram of a computer terminal of a power grid peak regulation method according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or N ( Figure 1 The computer terminal includes a processor 102 (only one is shown in the figure) (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, CPU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the computer terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0027] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the adjustment method of the monitoring network point in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or N magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0028] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0029] In this embodiment, a power grid peak regulation method is provided. Figure 2 is a flow chart of a power grid peak regulation method according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps S202-S208:

[0030] Step S202: monitoring a first power generation corresponding to the photovoltaic array and a second power generation corresponding to the coal-fired power plant, and matching the power demand of the target power grid based on the first power generation and the second power generation;

[0031] Step S204: allocating a third power generation amount according to the matching result to perform electrolytic hydrogen production; wherein the third power generation amount is part or all of the second power generation amount;

[0032] Step S206: determining the amount of a first gas generated by hydrogen electrolysis, and setting the amount of the first gas as a peak load energy source of the target power grid;

[0033] Step S208: when it is determined that the demanded power is greater than the sum of the first power generation and the second power generation, the peak-shaving energy is used to participate in the peak-shaving of the power grid.

[0034] The above steps monitor the first power generation corresponding to the photovoltaic array and the second power generation corresponding to the coal-fired power plant, match the power demand of the target power grid based on the first power generation and the second power generation; allocate the third power generation according to the matching result to perform electrolytic hydrogen production; wherein the third power generation is part or all of the power of the second power generation; determine the amount of the first gas generated by electrolytic hydrogen production, and set the first gas amount as the peak-shaving energy of the target power grid; when it is determined that the power demand is greater than the sum of the first power generation and the second power generation, use the peak-shaving energy to participate in the peak-shaving of the power grid. The above technical solution solves the problem that the process of achieving a dynamic balance between power supply and demand is relatively complicated. Furthermore, by monitoring the power generation of photovoltaic and coal-fired power plants, dynamically matching the power grid demand, and using the excess power of the coal-fired power plant for electrolytic hydrogen production, hydrogen is used as a peak-shaving energy to balance power supply and demand and improve the flexibility of the power system.

[0035] Optionally, the EMS control center continuously collects power generation data of the photovoltaic array and the coal-fired power plant, as well as real-time load information of the target power grid. If at noon of the day, the photovoltaic array generates a first power generation (e.g., 300kW) far exceeding the power grid demand due to strong sunlight, while the second power generation (e.g., 100kW) of the coal-fired power plant remains unchanged. At this time, the EMS adjusts the third power generation of the coal-fired power plant (e.g., 100kW of the full power of the coal-fired power plant) to the electrolysis hydrogen production system for the production of green hydrogen according to the matching results. Under the command of the EMS, the electrolysis hydrogen production module operates at maximum efficiency, converting 100kW of coal-fired electricity into hydrogen. After a period of operation, the system determines the first gas quantity (i.e., the amount of hydrogen produced) and safely stores it in the hydrogen storage facility as a peak energy reserve. In the evening, as the sunlight weakens, the first power generation of the photovoltaic array drops to 150kW, while the power grid load demands 450kW due to peak industrial and household electricity consumption. At this point, the total power generation of photovoltaic and coal-fired power (150kW+100kW=250kW) can no longer meet the needs of the power grid. The EMS system identifies this supply and demand gap and immediately dispatches the use of part or all of the stored green hydrogen as a peak-shaving energy source. Through fast-response hydrogen fuel cells or hydrogen power generation devices, it supplements the power grid demand and ensures the continuity and stability of power supply. Through the above embodiments, the system not only demonstrates its significant advantages in power supply and demand matching, energy dispatch response, and carbon emission reduction, but also provides practical solutions for power grid peak shaving, the cultivation of hydrogen energy economy, and the optimization of energy structure, reflecting the innovative value and economic potential of technology in practical applications.

[0036] In an exemplary embodiment, the target power grid's demanded electricity is matched based on the first power generation and the second power generation, including: when the second power generation is greater than or equal to the demanded electricity, instructing the photovoltaic array to release the grid-connected power transmission state and connecting the output power of the photovoltaic array to multiple electrolytic cells; when the second power generation is less than the demanded electricity, determining the demanded power generation to be supplemented according to the absolute value of the difference between the second power generation and the demanded electricity, and determining the third power generation according to the demanded power generation to be supplemented and the first power generation.

[0037] Optionally, in an area with good lighting conditions and equipped with photovoltaic arrays and coal-fired power plants, the first power generation of the photovoltaic array is 600kW, the second power generation of the coal-fired power plant is 400kW, and the target power grid demand is 350kW. Since the power generation of the coal-fired power plant is sufficient to meet the needs of the power grid, the system will instruct the photovoltaic array to release the grid-connected power transmission state and connect the excess 250kW of electricity (600kW-350kW) to the electrolyzer for hydrogen production, which not only avoids the waste of photovoltaic power, but also promotes the production of green hydrogen energy. However, in the evening of the next day, due to the weakening of light, the first power generation of the photovoltaic array dropped to 100kW, the second power generation of the coal-fired power plant was 400kW, and the target power grid demand rose to 550kW. At this time, the power generation of the coal-fired power plant is not enough to meet the needs of the power grid. The system first calculates the difference between the coal-fired power plant and the power grid demand, which is 150kW (|400kW-550kW|). Taking into account the first power generation of the photovoltaic array (100kW), the system determines that the third power generation is 150kW, of which the photovoltaic array can directly contribute 100kW. The system then dispatches the coal-fired power plant to increase power generation to 500kW to reduce the grid gap. At the same time, the system can also dispatch previously stored green hydrogen and convert it into electricity through hydrogen fuel cells to make up for the remaining 50kW of power demand and ensure stable power supply to the grid.

[0038] Through the above embodiments, it can be seen that the photovoltaic-electrolysis hydrogen production and coal-fired power plant coordinated peak-shaving system can not only optimize the allocation of power resources and improve the utilization efficiency of clean energy, but also enhance the flexibility and stability of the power system, which is of great significance for achieving green and low-carbon energy development.

[0039] In an exemplary embodiment, when it is determined that the demanded electricity is greater than the sum of the first power generation and the second power generation, peak-shaving energy is used to participate in grid peak-shaving, including: determining the remaining demanded electricity after deducting the first power generation and the second power generation; when determining the power generation efficiency corresponding to hydrogen, calculating the amount of second gas required for the remaining demanded electricity; and extracting the second gas amount from the first gas amount for grid peak-shaving.

[0040] Optionally, in a specific area, the real-time power demand of the target power grid is 800kW, while the first power generation of the photovoltaic array is 200kW, and the second power generation of the coal-fired power plant is 400kW, that is, the sum of the first power generation and the second power generation is 600kW (200kW+400kW). At this time, the system recognizes that the remaining power demand is 200kW (800kW-600kW). According to the efficiency of hydrogen power generation of 50%, 2kW of hydrogen is required for every 1kW of hydrogen power generation. In order to make up for the 200kW power gap, the system calculates that the required amount of hydrogen is 400kW (hydrogen amount = 200kW / 0.5). Subsequently, the system extracts 400kW of hydrogen from the hydrogen storage facility, converts it into electrical energy through a hydrogen fuel cell, and quickly transmits the electrical energy to the power grid to fill the 200kW power gap and ensure the stable operation of the power grid during peak demand.

[0041] Through the above process, the system can not only effectively manage electricity supply and demand, but also provide rapid response peak-shaving capabilities through the storage and conversion of green hydrogen when electricity demand fluctuates greatly, reduce dependence on fossil fuels, achieve energy conservation and emission reduction, and optimize energy structure. In addition, this strategy also provides a practical basis for the development of the hydrogen economy, which helps promote the widespread application of clean energy and technological progress.

[0042] In an exemplary embodiment, after using peak-shaving energy to participate in grid peak-shaving, the above method also includes: obtaining a peak-shaving result of the grid peak-shaving; when the peak-shaving result is a successful peak-shaving, generating a target peak-shaving strategy according to the peak-shaving process corresponding to the peak-shaving result; when the peak-shaving result is a failed peak-shaving, instructing the coal-fired power plant to increase the second power generation.

[0043] Optionally, during a typical daytime peak period, the target power grid's demand for electricity is 1200kW, while the total power generation of the photovoltaic array (first power generation) and the coal-fired power plant (second power generation) is 1000kW, leaving a power gap of 200kW. The system decides to use green hydrogen (second gas) in the hydrogen storage facility as a peak-shaving energy source, and converts hydrogen into electricity through a hydrogen fuel cell to meet the grid's needs. Assuming that the green hydrogen power generation efficiency is 50%, the system needs to dispatch 400kW of hydrogen to convert it into 200kW of electricity. The system successfully extracts 400kW of hydrogen from the hydrogen storage facility and completely converts it into electricity, making up for the 200kW power gap, that is, the peak-shaving result is a successful peak-shaving. At this point, the system records various parameters in the peak-shaving process (such as hydrogen power generation efficiency, real-time power generation of photovoltaic and coal-fired power plants, changes in grid demand, etc.), generates a target peak-shaving strategy, and provides a reference for peak-shaving operations in similar situations in the future. In some cases, assuming that the hydrogen storage facilities fail to provide enough hydrogen, or the conversion efficiency of the hydrogen fuel cell is lower than expected, resulting in insufficient peak-shaving effect and failure to fill the 200kW power gap, that is, the peak-shaving result is a peak-shaving failure. At this time, the system responds immediately and instructs the coal-fired power plant to increase its power generation, assuming that it increases to 1200kW (the third power generation) to ensure the stable operation of the power system and avoid risks in the power grid due to the imbalance of power supply and demand. Through the above embodiments, it can be seen that no matter what the peak-shaving result is, the system can make corresponding adjustments to ensure the stability and security of the power system. When the peak-shaving is successful, the system can learn and optimize to improve the efficiency of subsequent peak-shaving operations; when the peak-shaving fails, the system uses the response capability of the coal-fired power plant to quickly remedy and avoid the risks of power system operation, reflecting the flexibility and intelligence of the system design.

[0044] In an exemplary embodiment, after allocating the third power generation according to the matching results to perform electrolytic hydrogen production, the method further includes: obtaining the catalyst type corresponding to the electrolytic hydrogen production and the control strategy of multiple electrolyzers; determining the real-time electrolysis rate according to the third power generation and the catalyst type; adjusting the control strategy based on the real-time electrolysis rate to obtain the target control strategy.

[0045] Optionally, a smart electrolysis hydrogen production system is configured with two different electrolyzers, using an iridium-based catalyst (catalyst A) and a nickel-based catalyst (catalyst B) respectively. The system is connected to the photovoltaic array and monitors the input of photovoltaic power (the third power generation) in real time. The system reads the catalyst type (A or B) of the electrolyzer and the current control strategy, including parameters such as current density, electrolyte pH, and temperature. At a certain moment, the photovoltaic power input is 600kW. The system calculates the appropriate real-time electrolysis rate based on the characteristics of catalysts A and B and the power input of 600kW. Assume that the optimal real-time electrolysis rate corresponding to catalyst A is 2.0kg / h, while that for catalyst B is 1.5kg / h. Based on the determined real-time electrolysis rate, the system adjusts the control parameters of the electrolyzer to achieve the best electrolysis efficiency. For example, for catalyst A, the system increases the current density from 100A / m 2 Increase to 150A / m 2 , adjust the electrolyte pH value to optimize the catalyst activity. For catalyst B, the system appropriately increases the electrolyte temperature to increase the electrolysis rate to 1.5kg / h. After the adjustment is completed, the system generates a target control strategy, including adjusted current density, electrolyte pH value, temperature and other parameters, and monitors the operating status of the electrolyzer in real time to ensure the execution effect of the strategy. Through this embodiment, the system can not only dynamically adjust the electrolysis rate according to the real-time power input and catalyst characteristics, but also optimize the operating conditions of the electrolyzer to ensure efficient energy conversion and stable system operation.

[0046] In an exemplary embodiment, when it is determined that the demanded power is less than the sum of the first power generation and the second power generation, it is determined whether the photovoltaic array is at its peak output; when the photovoltaic array is at its peak output, a reduction instruction is issued to the coal-fired power plant, wherein the reduction instruction is used to control the coal-fired power plant to reduce its power generation; when the photovoltaic array is not at its peak output, the proportion of the first power generation and the second power generation in the demanded power is balanced to obtain a power supply strategy.

[0047] Optionally, a smart grid has a total power demand of 1200kW at a certain time of the day. At this time, the first power generation of the photovoltaic array is 800kW, and the second power generation of the coal-fired power plant is 1000kW. The system first determines that the power demand is less than the sum of the first power generation and the second power generation (1200kW<800kW+1000kW), which meets the initial conditions. At noon on a sunny day, the first power generation of the photovoltaic array reaches 800kW, and the system identifies it as the peak of photovoltaic output. The system sends a reduction instruction to the coal-fired power plant, requiring the coal-fired power plant to reduce its power generation to adapt to the 1200kW power demand. In this example, the power generation of the coal-fired power plant is reduced from 1000kW to 400kW. In this way, the 800kW power provided by the photovoltaic array plus the 400kW power of the coal-fired power plant just meet the 1200kW demand of the power grid, realizing the full utilization of photovoltaic power generation and the flexible scheduling of the coal-fired power plant. If in the evening or rainy weather, the first power generation of the photovoltaic array drops to 400kW, the system determines that the photovoltaic array is not at the peak of output. At this time, the system needs to balance the power generation of photovoltaic and coal-fired power. According to the 1200kW demand of the power grid, the 400kW of power that the photovoltaic array can provide is not enough to meet the demand. The system automatically adjusts the power generation of the coal-fired power plant from 1000kW to 800kW. In this way, the 400kW provided by the photovoltaic array plus the 800kW of the coal-fired power plant, a total of 1200kW, just meets the needs of the power grid and achieves the continuity and stability of power supply. Through this process, the smart grid can dynamically adjust the power generation of the coal-fired power plant according to the real-time power supply and demand and the output status of the photovoltaic array, ensuring the efficient and stable operation of the power system, while promoting the consumption of clean energy and the optimization of the energy structure, in line with the green and sustainable development goals.

[0048] Obviously, the embodiments described above are only some embodiments of the present application, not all embodiments. In order to better understand the method, the above process is described below in conjunction with the embodiments, but it is not intended to limit the technical solutions of the embodiments of the present application, specifically:

[0049] The optional embodiment of the present application provides a photovoltaic-electrolysis hydrogen production and coal-fired power plant coordinated peak-shaving system and method, in order to solve the problem that the process of achieving a dynamic balance between electricity supply and demand is relatively complex. The method aims to utilize the flexibility of photovoltaic power generation and electrolysis hydrogen production technology, in conjunction with the peak-shaving capacity of coal-fired power plants, to achieve an efficient and flexible operation mode of the power system, while increasing the production of green hydrogen. Combining the clean power generation of photovoltaics with the peak-shaving capacity of coal-fired power plants, by producing hydrogen through water electrolysis, it is possible to not only balance the load of the power grid, but also promote the production and utilization of hydrogen energy, and achieve the optimization of the energy structure and carbon reduction goals. It is usually suitable for areas with photovoltaic resources and coal-fired power plants, and is particularly suitable for countries and regions that need to balance the fluctuations of renewable energy, improve the flexibility of the energy system, and seek a low-carbon transformation path, which will help promote the development of a green and low-carbon economy.

[0050] As an optional implementation, Figure 3 It is a logical schematic diagram of a photovoltaic-electrolysis hydrogen production and coal-fired power plant coordinated peak-shaving system according to an embodiment of the present application. The above system mainly includes: an EMS control center 32, electrolysis hydrogen production 34, hydrogen storage and application 36, and a coal-fired power plant 38.

[0051] Optionally, an EMS control center 32. Develop an integrated energy management system (EMS) that integrates a photovoltaic prediction algorithm, an electrolysis hydrogen production optimization model, and an information interaction module with a coal-fired power plant. By real-time monitoring of grid load, photovoltaic output, and energy storage status, the EMS dynamically adjusts the electrolysis hydrogen production strategy and guides the load scheduling of coal-fired power plants to achieve accurate matching of power supply and demand.

[0052] Optionally, hydrogen can be produced by electrolysis 34. By building a high-efficiency photovoltaic array and equipping it with an intelligent tracking system to maximize light energy capture. The accompanying electrolyzer uses a new electrocatalyst and intelligent control strategy, which can adjust the electrolysis rate in real time according to the fluctuation of photovoltaic output power, thus achieving efficient utilization of photovoltaic power.

[0053] Optionally, the photovoltaic array is an important source of clean energy generation, and its output power is continuously monitored by the system monitoring module. When the photovoltaic output is in excess, the output power of the photovoltaic array can be directed to the electrolysis hydrogen production link to store hydrogen as a peak-shaving energy source.

[0054] Optionally, hydrogen storage and application 36. The produced hydrogen can be stored in high-pressure gaseous state or solid state in efficient and safe hydrogen storage facilities. According to market demand, hydrogen can be directly supplied to hydrogen fuel cell vehicles, industrial raw materials or used as energy storage medium to participate in grid peak regulation, thereby improving the overall flexibility and economy of the energy system.

[0055] Optional, coal-fired power plant 38. Coal-fired power plants adopt flexible start-stop and load adjustment mechanisms through linkage with EMS. When the photovoltaic output is at its peak, the coal-fired power plant reduces power generation to provide more space for electrolytic hydrogen production; when the photovoltaic output is insufficient, it increases power generation in a timely manner to supplement the grid demand, and at the same time uses the flexibility of the electrolyzer to adjust the hydrogen production rate to balance the grid load and ensure grid stability.

[0056] Optional, Figure 4 This is a flow chart of a method for coordinated peak-shaving of photovoltaic-electrolysis hydrogen production and coal-fired power plants according to an embodiment of the present application. Specifically, it includes the following steps:

[0057] Step 1: Energy monitoring and data collection. The system first collects power generation data of photovoltaic arrays and coal-fired power plants and grid load information in real time through the system monitoring module. These data include key parameters such as photovoltaic output, coal-fired power plant operating status, and real-time grid demand, providing a basis for subsequent data analysis and decision-making.

[0058] Step 2: Data analysis and strategy formulation. The collected data is transmitted to the data analysis module to evaluate the current energy supply and demand. Based on the analysis results, the forecasting and scheduling module predicts the future photovoltaic output and grid load trends and formulates corresponding scheduling strategies, including the collaborative working mode of photovoltaic and coal-fired power plants and the rate adjustment strategy of electrolytic hydrogen production.

[0059] Step 3: Energy conversion and peak load regulation. According to the optimization and regulation strategy, the EMS control center sends dispatch instructions to the coal-fired power plant and electrolyzer. When the photovoltaic output is at its peak, the coal-fired power plant is controlled to reduce power generation and reduce dependence on fossil fuels. At the same time, the electrolysis rate is adjusted according to the real-time power input and catalyst type to accelerate the water electrolysis hydrogen production process and realize grid peak load regulation. The produced hydrogen is safely stored in the hydrogen storage module for subsequent use.

[0060] Step 4: Energy storage and application feedback. The stored hydrogen can be used as clean energy, such as being provided to hydrogen vehicles or used in industrial processes. At the same time, the operating status of the hydrogen application and storage module is fed back to the EMS control center for subsequent data analysis, forming a closed loop of decision-making and execution, and continuously optimizing system performance.

[0061] It should be noted that the power generation of photovoltaic energy is directly affected by the lighting conditions and has significant intermittency and uncertainty. Therefore, it is necessary to establish a highly accurate photovoltaic prediction model to ensure that the photovoltaic output can be accurately predicted so as to reasonably arrange the peak-shaving plan of coal-fired power plants and the operation of electrolysis hydrogen production modules. In addition, the photovoltaic array should be equipped with an intelligent tracking system to maximize the capture of light energy and improve the efficiency of photovoltaic power generation. The storage of hydrogen requires the use of efficient and safe storage technologies, such as high-pressure gas storage or solid-state hydrogen storage, to ensure the long-term stable storage of hydrogen. Safety issues cannot be ignored, including the design of storage facilities, hydrogen leak detection, and the formulation of emergency plans. The produced hydrogen needs to find a suitable market application path, including hydrogen fuel cell vehicles, industrial raw materials or energy storage, which requires the establishment of a complete hydrogen energy supply chain and application ecology. At the same time, it is necessary to pay attention to the dynamic changes in the hydrogen energy market and adjust the hydrogen production rate and storage strategy to meet the changing market demand. When designing and optimizing the photovoltaic-electrolysis hydrogen production and coal-fired power plant coordinated peak-shaving system, it is necessary to regularly evaluate the system's economic and environmental impacts, including the hydrogen production cost, the emission reduction effect of the coal-fired power plant, and the overall carbon footprint of the system to ensure the sustainability and economic feasibility of the technical solution.

[0062] In summary, the optional embodiments of the present application integrate photovoltaic hydrogen production and coal-fired power plant collaborative peak-shaving technology, realize efficient coupling and complementary utilization of energy through intelligent EMS control, significantly improve the absorption and storage capacity of renewable energy, and enhance the flexibility of coal-fired power plants to cope with grid fluctuations, realize the coordinated dispatch of photovoltaic, electrolytic hydrogen production and coal-fired power plants, and optimize the operation efficiency of the power system. Use renewable energy to peak-shave, reduce the environmental burden of coal-fired power plants, and promote the transformation of energy structure. By establishing an integrated energy management system, multi-energy complementarity and intelligent dispatching are achieved, and the flexibility and response speed of the system are improved. The limitations of existing technologies in energy supply and demand matching, dispatching response speed and environmental impact are effectively solved. In addition, providing a new model for green hydrogen production and utilization and promoting the development of the hydrogen energy industry chain not only promotes the green transformation of the energy structure, but also gives birth to new economic growth points, achieves the win-win goal of economic benefits and environmental protection, and provides advanced solutions for building a sustainable future energy system.

[0063] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0064] In this embodiment, a power grid peak-shaving device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0065] Figure 5 : is a structural block diagram of a power grid peak load regulation device according to an embodiment of the present application, the device comprising:

[0066] A monitoring module 52, configured to monitor a first power generation corresponding to the photovoltaic array and a second power generation corresponding to the coal-fired power plant, and match the power demand of the target power grid based on the first power generation and the second power generation;

[0067] The allocation module 54 is used to allocate the third power generation according to the matching result to perform electrolytic hydrogen production; wherein the third power generation is part or all of the second power generation;

[0068] A first determination module 56 is used to determine the amount of a first gas generated by electrolysis of hydrogen, and set the first gas amount as a peak load energy source of the target power grid;

[0069] The participation module 58 is used to use the peak-shaving energy to participate in the peak-shaving of the power grid when it is determined that the required power is greater than the sum of the first power generation and the second power generation.

[0070] The above device monitors the first power generation corresponding to the photovoltaic array and the second power generation corresponding to the coal-fired power plant, matches the power demand of the target power grid based on the first power generation and the second power generation; allocates the third power generation to perform electrolytic hydrogen production according to the matching result; wherein the third power generation is part or all of the power of the second power generation; determines the amount of the first gas generated by electrolytic hydrogen production, and sets the first gas amount as the peak-shaving energy of the target power grid; when it is determined that the power demand is greater than the sum of the first power generation and the second power generation, uses the peak-shaving energy to participate in the peak-shaving of the power grid. The above technical solution solves the problem that the process of achieving a dynamic balance between power supply and demand is relatively complicated. Furthermore, by monitoring the power generation of photovoltaic and coal-fired power plants, dynamically matching the power grid demand, and using the excess power of the coal-fired power plant for electrolytic hydrogen production, hydrogen is used as a peak-shaving energy to balance power supply and demand and improve the flexibility of the power system.

[0071] In an exemplary embodiment, the above-mentioned monitoring module is also used to match the demand power of the target power grid based on the first power generation and the second power generation, including: when the second power generation is greater than or equal to the demand power, instructing the photovoltaic array to release the grid-connected power transmission state and connect the output power of the photovoltaic array to multiple electrolytic cells; when the second power generation is less than the demand power, determining the demand power generation to be supplemented according to the absolute value of the difference between the second power generation and the demand power, and determining the third power generation according to the demand power generation to be supplemented and the first power generation.

[0072] In an exemplary embodiment, the above-mentioned monitoring module is also used to use peak-shaving energy to participate in grid peak-shaving when it is determined that the demanded electricity is greater than the sum of the first power generation and the second power generation, including: determining the remaining demanded electricity after deducting the first power generation and the second power generation; when determining the power generation efficiency corresponding to hydrogen, calculating the amount of second gas required for the remaining demanded electricity; and extracting the second gas amount from the first gas amount for grid peak-shaving.

[0073] In an exemplary embodiment, the above-mentioned device also includes: a first acquisition module, which is used to obtain the peak-shaving result of the power grid after using peak-shaving energy to participate in power grid peak-shaving; when the peak-shaving result is a successful peak-shaving, generating a target peak-shaving strategy according to the peak-shaving process corresponding to the peak-shaving result; when the peak-shaving result is a peak-shaving failure, instructing the coal-fired power plant to increase the second power generation.

[0074] In an exemplary embodiment, the above-mentioned device also includes: a second acquisition module, which is used to allocate the third power generation according to the matching result to perform electrolytic hydrogen production, and then obtain the catalyst type corresponding to the electrolytic hydrogen production and the control strategy of multiple electrolytic cells; determine the real-time electrolysis rate according to the third power generation and the catalyst type; adjust the control strategy based on the real-time electrolysis rate to obtain the target control strategy.

[0075] In an exemplary embodiment, the above-mentioned device also includes: a second determination module, which is used to determine whether the photovoltaic array is at a peak output when it is determined that the demand power is less than the sum of the first power generation and the second power generation; when the photovoltaic array is at a peak output, send a reduction instruction to the coal-fired power plant, wherein the reduction instruction is used to control the coal-fired power plant to reduce the power generation; when the photovoltaic array is not at a peak output, balance the proportion of the first power generation and the second power generation in the demand power to obtain a power supply strategy.

[0076] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0077] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0078] S1, monitoring a first power generation corresponding to a photovoltaic array and a second power generation corresponding to a coal-fired power plant, and matching the power demand of a target power grid based on the first power generation and the second power generation;

[0079] S2. Allocating a third power generation amount according to the matching result to perform electrolytic hydrogen production; wherein the third power generation amount is part or all of the second power generation amount;

[0080] S3. Determine the amount of a first gas generated by hydrogen electrolysis, and set the first gas amount as the peak load energy of the target power grid;

[0081] S4. When it is determined that the demanded power is greater than the sum of the first power generation and the second power generation, the peak-shaving energy is used to participate in the peak-shaving of the power grid.

[0082] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0083] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0084] An embodiment of the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps in any one of the above method embodiments are performed.

[0085] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0086] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0087] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0088] S1, monitoring a first power generation corresponding to a photovoltaic array and a second power generation corresponding to a coal-fired power plant, and matching the power demand of a target power grid based on the first power generation and the second power generation;

[0089] S2. Allocating a third power generation amount according to the matching result to perform electrolytic hydrogen production; wherein the third power generation amount is part or all of the second power generation amount;

[0090] S3. Determine the amount of a first gas generated by hydrogen electrolysis, and set the first gas amount as the peak load energy of the target power grid;

[0091] S4. When it is determined that the demanded power is greater than the sum of the first power generation and the second power generation, the peak-shaving energy is used to participate in the peak-shaving of the power grid.

[0092] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0093] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0094] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of N computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that here, or they can be made into individual integrated circuit modules, or N of the modules or steps can be made into a single integrated circuit module for implementation. In this way, the present application is not limited to any specific combination of hardware and software.

[0095] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A power grid peak regulation method, characterized in that: include: Monitoring a first power generation corresponding to the photovoltaic array and a second power generation corresponding to the coal-fired power plant, and matching the power demand of the target power grid based on the first power generation and the second power generation; According to the matching result, the third power generation is allocated to perform electrolytic hydrogen production; wherein the third power generation is part or all of the second power generation; Determine the amount of a first gas generated by hydrogen electrolysis, and set the first gas amount as the peak load energy of the target power grid; When it is determined that the required power is greater than the sum of the first power generation and the second power generation, the peak-shaving energy is used to participate in power grid peak-shaving.

2. The power grid peak load regulation method according to claim 1, characterized in that: Matching the required power of a target power grid based on the first power generation and the second power generation includes: When the second power generation is greater than or equal to the required power, instructing the photovoltaic array to terminate the grid-connected power transmission state, and connecting the output power of the photovoltaic array to multiple electrolytic cells; When the second power generation is less than the required power generation, the required power generation to be supplemented is determined according to the absolute value of the difference between the second power generation and the required power generation, and the third power generation is determined according to the required power generation to be supplemented and the first power generation.

3. The power grid peak load regulation method according to claim 1, characterized in that: When it is determined that the required power is greater than the sum of the first power generation and the second power generation, using the peak-shaving energy to participate in power grid peak-shaving includes: Determine the remaining required electricity amount after deducting the first power generation amount and the second power generation amount from the required electricity amount; When the power generation efficiency corresponding to hydrogen is determined, the amount of the second gas required for the remaining required power is calculated; The second gas quantity is extracted from the first gas quantity to perform grid peak regulation.

4. The power grid peak load regulation method according to claim 1, characterized in that: After using the peak-shaving energy to participate in power grid peak-shaving, the method further includes: Obtaining a peak-shaving result of the peak-shaving of the power grid; When the peak-shaving result is a success, generating a target peak-shaving strategy according to the peak-shaving process corresponding to the peak-shaving result; When the peak-shaving result is a peak-shaving failure, the coal-fired power plant is instructed to increase a second power generation amount.

5. The power grid peak load regulation method according to claim 1, characterized in that: After allocating the third power generation according to the matching result to perform hydrogen production by electrolysis, the method further includes: Obtaining a catalyst type corresponding to the electrolytic hydrogen production and a control strategy for multiple electrolyzers; Determining a real-time electrolysis rate according to the third power generation amount and the catalyst type; The control strategy is adjusted based on the real-time electrolysis rate to obtain a target control strategy.

6. The power grid peak load regulation method according to claim 1, characterized in that: The method further comprises: In the case where it is determined that the required power is less than the sum of the first power generation and the second power generation, determining whether the photovoltaic array is at a peak output; When the photovoltaic array is at a peak output, a reduction instruction is issued to the coal-fired power plant, wherein the reduction instruction is used to control the coal-fired power plant to reduce power generation; When the photovoltaic array is not at its peak output, the proportions of the first power generation and the second power generation in the required power are balanced to obtain a power supply strategy.

7. A power grid peak load regulation device, characterized in that: include: A monitoring module, used for monitoring a first power generation corresponding to the photovoltaic array and a second power generation corresponding to the coal-fired power plant, and matching the power demand of the target power grid based on the first power generation and the second power generation; A deployment module, used for deploying a third power generation according to the matching result to perform electrolytic hydrogen production; wherein the third power generation is part or all of the second power generation; A first determination module is used to determine the amount of a first gas generated by electrolysis of hydrogen, and set the first gas amount as a peak-shaving energy source of the target power grid; A participation module is used to use the peak-shaving energy to participate in power grid peak-shaving when it is determined that the required power is greater than the sum of the first power generation and the second power generation.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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