Community Distributed Green Hydrogen Production and Cogeneration Integrated System and Control Method

Abstract

The present invention discloses a community-distributed green electricity hydrogen production and cogeneration integrated system and control method. In the system, the photovoltaic / wind power generation module converts solar energy / wind energy into electrical energy to supply power to the user-side electrical equipment connected to the converter and the water electrolysis hydrogen production module; the water electrolysis hydrogen production module is used to electrolyze water to produce hydrogen; the hydrogen storage module is used to store the prepared hydrogen, which can achieve a storage period of several hours to several months; the hydrogen fuel cell cogeneration module is used to supply the electricity generated by hydrogen to the user-side electrical equipment, and the heat energy is transferred to the water storage tank for heat storage, providing heating for users and domestic hot water. The system can use the community's renewable energy green electricity to produce and store hydrogen, and supply hydrogen to the hydrogen fuel cell cogeneration module when the user needs energy, balancing the volatility and time difference of production capacity and energy consumption, improving the utilization rate of distributed renewable energy, alleviating the community's dependence on grid energy, and reducing carbon emissions.

Description

Technical Field

[0001] The present invention relates to the field of new energy technologies, and in particular to a community distributed green electricity hydrogen production and cogeneration integrated system and a control method. Background Art

[0002] In the current energy landscape, new energy sources (especially green energy) are increasingly gaining importance and widespread application. Hydrogen, as a clean and efficient secondary energy source, has attracted widespread attention due to its abundant reserves, renewable nature, and the fact that its combustion product is solely water. However, traditional hydrogen production methods rely heavily on fossil fuels and are not fully environmentally friendly.

[0003] Existing green electricity hydrogen production and application technologies mainly face the following problems:

[0004] 1) Insufficient utilization of green electricity. Although solar photovoltaic and wind power generation have been applied in many communities and industrial parks, due to the volatility of renewable energy generation and the inflexibility of grid scheduling, power curtailment is common, resulting in low green electricity utilization. In addition, as renewable energy accounts for an increasing proportion of energy utilization, the problems of wind and solar power curtailment and power allocation will become increasingly prominent, which will result in a serious waste of green electricity resources and will also be detrimental to the advancement of energy transformation.

[0005] 2) Low efficiency of hydrogen production and storage. Traditional water electrolysis hydrogen production and storage technologies have many limitations. From the perspective of energy efficiency, its energy conversion efficiency needs to be improved; in terms of cost, the equipment, materials, and operation and maintenance costs involved in the hydrogen production and storage processes are relatively high; in addition, it is difficult to achieve a good adaptation between the hydrogen transportation link and the volatility of renewable energy power generation. These factors combined make it difficult to achieve efficient utilization of community distributed renewable energy and hydrogen energy, thereby limiting the large-scale promotion and application of green electricity hydrogen production technology at the community level;

[0006] 3) Cogeneration is disconnected from renewable energy utilization. Existing cogeneration systems and renewable energy power generation systems usually operate independently, without working together to achieve higher energy efficiency. This independence makes it impossible for the two to work together to achieve higher energy efficiency. For example, during operation, the cogeneration system may rely more on traditional energy supply and fail to fully utilize the green electricity generated by the renewable energy power generation system. At the same time, the electricity generated by the renewable energy power generation system is not effectively integrated with the cogeneration system, resulting in a waste of energy resources and is not conducive to building an integrated and efficient energy supply system.

[0007] 4) The challenge of coupling electricity and hydrogen. Renewable energy generation is intermittent and volatile. For example, photovoltaic power generation is affected by factors such as day and night and weather, and wind power generation is affected by factors such as wind speed. Hydrogen production requires stable power input. How to effectively couple unstable renewable energy power with the hydrogen production system to achieve efficient and stable green electricity hydrogen production is a key technical challenge. Summary of the Invention

[0008] The embodiments of the present invention provide a community-based integrated system for distributed green electricity hydrogen production and combined heat and power generation and a control method, aiming to address the problems of low green electricity utilization caused by the volatility and inflexibility of grid scheduling in the existing technical methods used in communities and parks.

[0009] In a first aspect, an embodiment of the present invention provides a community-based distributed green electricity hydrogen production and cogeneration integrated system, which includes a photovoltaic / wind power generation module, a water electrolysis hydrogen production module, a hydrogen storage module, a hydrogen fuel cell cogeneration module, and a hot water storage tank;

[0010] The photovoltaic / wind power generation module converts solar / wind energy into electrical energy through a converter, which can supply power to user-side electrical equipment connected to the converter and to the water electrolysis hydrogen production module;

[0011] The water electrolysis hydrogen production module is used to electrolyze water to produce hydrogen;

[0012] The hydrogen storage module is connected to the water electrolysis hydrogen production module through a connecting pipe and is used to store the hydrogen produced by the water electrolysis hydrogen production module;

[0013] The hydrogen fuel cell cogeneration module is connected to the hydrogen storage module through a gas supply pipeline, and is used to use the generated electricity to power the user-side electrical equipment connected to the hydrogen fuel cell cogeneration module, and transfer the heat energy generated during the power generation process to the hot water storage tank for heat storage;

[0014] The heat storage tank is used to store the heat energy generated by the hydrogen fuel cell cogeneration module to provide heating or domestic hot water to users.

[0015] In a second aspect, an embodiment of the present invention provides a control method for a community-based distributed green electricity hydrogen production and cogeneration integrated system, which is applied to a control console, wherein the photovoltaic / wind power generation module, water electrolysis hydrogen production module, hydrogen storage module, hydrogen fuel cell cogeneration module, and water storage tank in the community-based distributed green electricity hydrogen production and cogeneration integrated system are all connected to the control console; the control method includes:

[0016] Obtaining current meteorological data and equipment deployment information of photovoltaic / wind power generation modules in the target community, and determining the current power generation operating mode of the photovoltaic / wind power generation modules based on a preset new energy power generation operating mode recommendation strategy, the current meteorological data, and the equipment deployment information;

[0017] Determining, according to the current power generation operating mode, a first power supply ratio corresponding to the photovoltaic / wind power generation module supplying power to the user-side electrical equipment, and a second power supply ratio corresponding to the water electrolysis hydrogen production module;

[0018] Controlling the water electrolysis hydrogen production module to produce hydrogen when the photovoltaic / wind power generation module supplies power according to the second power supply ratio, and storing the hydrogen in the hydrogen storage module;

[0019] Based on the community electricity consumption history data of the target community, the current average electricity consumption data corresponding to the user-side electrical equipment and the preset hydrogen fuel cell power generation control strategy, the current power generation power of the hydrogen fuel cell cogeneration module is determined to control the hydrogen fuel cell cogeneration module to generate electricity at the current power generation power.

[0020] An embodiment of the present invention provides a community distributed green electricity hydrogen production and cogeneration integrated system and control method, the system includes a photovoltaic / wind power generation module, a water electrolysis hydrogen production module, a hydrogen storage module, a hydrogen fuel cell cogeneration module and a hot water storage tank; the photovoltaic / wind power generation module converts solar energy / wind energy into electrical energy through a converter, which can power user-side electrical equipment connected to the converter and power the water electrolysis hydrogen production module; the water electrolysis hydrogen production module is used to electrolyze water to produce hydrogen; the hydrogen storage module is connected to the water electrolysis hydrogen production module through a connecting pipe, and is used to store the hydrogen produced by the water electrolysis hydrogen production module; the hydrogen fuel cell cogeneration module is connected to the hydrogen storage module through a gas supply pipe, and is used to power the user-side electrical equipment connected to the hydrogen fuel cell cogeneration module with the generated electrical energy, and transfer the generated heat energy to the hot water storage tank for heat storage; the hot water storage tank is used to store the heat energy generated by the hydrogen fuel cell cogeneration module to provide heating to users or domestic hot water. Through the above system, the electricity generated by green electricity generation can be fully utilized to provide hydrogen to the water electrolysis hydrogen production module for hydrogen production, and the prepared hydrogen can be supplied to the hydrogen fuel cell cogeneration module. The hydrogen generated by the hydrogen in the hydrogen fuel cell cogeneration module is used to provide electricity to user-side electrical equipment, and the generated heat energy is stored in the heat storage tank, thereby improving the utilization rate of green electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic block diagram of a community-based distributed green electricity hydrogen production and combined heat and power system according to an embodiment of the present invention;

[0023] Figure 2 A schematic block diagram of a hydrogen fuel cell cogeneration module in a community-based distributed green electricity hydrogen production and cogeneration integrated system provided by an embodiment of the present invention;

[0024] Figure 3 A schematic block diagram of a water electrolysis hydrogen production module in a community distributed green electricity hydrogen production and cogeneration integrated system provided by an embodiment of the present invention;

[0025] Figure 4 A flow chart of a control method for a community-based distributed green electricity hydrogen production and combined heat and power system according to an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a sub-flow diagram of a control method for a community distributed green electricity hydrogen production and cogeneration integrated system provided by an embodiment of the present invention;

[0027] Figure 6 This is another sub-flow diagram of the control method of the community distributed green electricity hydrogen production and cogeneration integrated system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0030] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should be further understood that the term "and / or" used in the present description and appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0032] See also Figure 1 , which is a schematic block diagram of a community distributed green electricity hydrogen production and cogeneration integrated system provided by an embodiment of the present invention. Figure 1 As shown, the community's distributed green electricity hydrogen production and cogeneration integrated system includes a photovoltaic / wind power generation module 10, a water electrolysis hydrogen production module 20, a hydrogen storage module 30, a hydrogen fuel cell cogeneration module 40 and a hot water storage tank 50;

[0033] The photovoltaic / wind power generation module 10 converts solar / wind energy into electrical energy through the converter 11, which can supply power to the user-side electrical equipment 60 connected to the converter 11 and to the water electrolysis hydrogen production module 20;

[0034] The water electrolysis hydrogen production module 20 is used to electrolyze water to produce hydrogen;

[0035] The hydrogen storage module 30 is connected to the water electrolysis hydrogen production module 20 through a connecting pipe 31 and is used to store the hydrogen produced by the water electrolysis hydrogen production module 20;

[0036] The hydrogen fuel cell cogeneration module 40 is connected to the hydrogen storage module 30 via a gas supply pipe 32, and is used to generate electricity to power the user-side electrical equipment 60 connected to the hydrogen fuel cell cogeneration module 40, and transfer the heat energy generated during the hydrogen power generation process to the hot water storage tank 50 for heat storage;

[0037] The hot water storage tank 50 is used to store the heat energy generated by the hydrogen fuel cell cogeneration module 40 to provide heating or domestic hot water to users.

[0038] In this embodiment, a photovoltaic / wind power generation module 10 is deployed in a community (e.g., a residential community, residential quarters, etc.) or a park (e.g., an industrial park, office park, etc.). Photovoltaic power generation devices are constructed or retrofitted on the surfaces of buildings, parking lots, small squares, green spaces, roads, and other open spaces within the community, fully utilizing solar energy resources for power generation. At the same time, wind power generation devices can be constructed or retrofitted on rooftops and open spaces within the community. In this way, the photovoltaic / wind power generation module 10 deployed within the community can effectively generate green electricity (i.e., using solar and wind energy to power the community, reducing demand for grid power, and thus significantly reducing the community's carbon emissions). Furthermore, the electricity generated through the converter can be used to directly power user-side electrical equipment 60 within the community and to power the water electrolysis hydrogen production module 20 for hydrogen production.

[0039] Since the power supply of the water electrolysis hydrogen production module 20 is a photovoltaic / wind power generation module, rather than relying on the combustion of fossil energy as the energy source for the hydrogen production process, the electricity generated by green power generation is fully utilized to provide the water electrolysis hydrogen production module 20 for hydrogen production.

[0040] Furthermore, the hydrogen produced by the water electrolysis hydrogen production module 20 is first stored in the hydrogen storage module 30. When the hydrogen fuel cell cogeneration module 40 needs to generate electricity, it obtains hydrogen from the hydrogen storage module 30 and generates electricity, thereby powering the user-side electrical equipment 60 connected to the hydrogen fuel cell cogeneration module 40. The heat energy generated during the hydrogen power generation process is transferred to the hot water storage tank 50 (which is a heat storage tank with thermal insulation function) for heat storage. This process fully utilizes the electrical and thermal energy generated during the hydrogen power generation process.

[0041] The above example uses a community distributed green electricity hydrogen production and cogeneration integrated system deployed in one community as an example. When the above community distributed green electricity hydrogen production and cogeneration integrated system is deployed in multiple communities in a distributed manner, the flexibility and reliability of energy supply are improved, and it can cope with different changes in energy demand.

[0042] In one embodiment, if Figure 1 and Figure 2 As shown, the hydrogen fuel cell cogeneration module 40 includes a first controller 41 and a hydrogen fuel cell 42 . The hydrogen fuel cell 42 is connected to the hydrogen storage module 30 through the gas supply pipe 32 , and the hydrogen fuel cell 42 is electrically connected to the first controller 41 .

[0043] In this embodiment, to achieve intelligent control of the power generation process in the hydrogen fuel cell 42, a first controller 41 can be specifically provided in the hydrogen fuel cell cogeneration module 40. Based on control signals generated by the first controller 41 itself or received from other controllers (such as a control center such as a console), the power generation process of the hydrogen fuel cell 42 is intelligently controlled. Furthermore, the first controller 41 can also intelligently and dynamically adjust the power generation and heating of the hydrogen fuel cell 42 based on the user's electricity and heating needs.

[0044] In one embodiment, if Figure 1 As shown, the community distributed green electricity hydrogen production and cogeneration integrated system also includes a hydrogen processing area 70; the water electrolysis hydrogen production module 20 and the hydrogen storage module 30 are arranged in the hydrogen processing area 70, and the distance between the hydrogen processing area 70 and the user-side electrical equipment 60, the photovoltaic / wind power generation module 10, and the hydrogen fuel cell cogeneration module 40 exceeds the first preset safety distance.

[0045] In this embodiment, in order to improve the system safety of the community's distributed green electricity hydrogen production and cogeneration integrated system, the water electrolysis hydrogen production module 20 and the hydrogen storage module 30 can be set in the hydrogen processing area 70, so as to facilitate unified safety management of the hydrogen production module 20 and the hydrogen storage module 30 in the hydrogen processing area 70. Moreover, because the distance between the hydrogen processing area 70 and the user-side electrical equipment 60, the photovoltaic / wind power generation module 10, and the hydrogen fuel cell cogeneration module 40 exceeds the first preset safety distance, the safety of the user-side electrical equipment 60, the photovoltaic / wind power generation module 10, and the hydrogen fuel cell cogeneration module 40 is guaranteed. Moreover, through the model of centralized hydrogen production and distributed hydrogen fuel cell cogeneration within the community, the problem of hydrogen transportation and storage is solved, and the comprehensive utilization efficiency of hydrogen energy is improved.

[0046] In one embodiment, if Figure 1 As shown, the community distributed green electricity hydrogen production and cogeneration integrated system also includes a cogeneration processing area 80; the hydrogen fuel cell cogeneration module 40 and the hot water storage tank 50 are arranged in the cogeneration processing area 80, and the distance between the cogeneration processing area 80 and the user-side electrical equipment 60 exceeds the second preset safety distance, and the second preset safety distance is smaller than the first preset safety distance.

[0047] In this embodiment, because the hydrogen fuel cell cogeneration module 40 and the hot water storage tank 50 in the integrated community distributed green electricity hydrogen production and cogeneration system are core cogeneration modules and have higher safety, they are located in the cogeneration processing area 80, closer to the users. This can reduce the amount of pipes used to transport hot water from the hot water storage tank 50 to the users. Furthermore, the distance between the hydrogen fuel cell cogeneration module 40 and the hot water storage tank 50 can be set to be less than the third preset safety distance, so that the heat generated by the hydrogen fuel cell 42 in the hydrogen fuel cell cogeneration module 40 is transferred to the hot water storage tank 50 with minimal loss.

[0048] In one embodiment, if Figure 3 As shown, the water electrolysis hydrogen production module 20 includes a second controller 21, an electrolytic cell 22 and a cooling device 23. The electrolytic cell 22 is electrically connected to the photovoltaic / wind power generation module 10, and the electrolytic cell 22 is also electrically connected to the second controller 21; the cooling device 23 is arranged in the electrolytic cell 22 or on the outer wall of the electrolytic cell 22, and the cooling device 23 is electrically connected to the second controller 21.

[0049] In this embodiment, the water electrolysis hydrogen production module 20 specifically uses an electrolyzer 22 to produce hydrogen. In addition, in order to achieve intelligent control of its hydrogen production process, a second controller 21 is also provided, which can control the hydrogen production process of the electrolyzer 22. In addition, since a large amount of heat is generated during the hydrogen production process, in order to ensure the stability and safety of the water electrolysis hydrogen production module 20, it can be cooled. Specifically, a cooling device 23 is provided in the electrolyzer 22 or on the outer wall of the electrolyzer 22 to cool the electrolyzer 22 during the startup of the hydrogen production process.

[0050] It can be seen that the implementation of the community distributed green electricity hydrogen production and cogeneration integrated system in the embodiment of the present application fully utilizes the electric energy generated by green electricity generation to provide it to the water electrolysis hydrogen production module for hydrogen production, and stores renewable energy through the hydrogen storage module. When the user side needs energy, the hydrogen prepared can be supplied to the hydrogen fuel cell cogeneration module. The electric energy generated by the hydrogen in the hydrogen fuel cell cogeneration module is provided to the user side electrical equipment, and the generated heat energy is stored in the water storage tank, thereby improving the utilization rate of green electricity.

[0051] The embodiment of the present invention also provides a control method for a community distributed green electricity hydrogen production and cogeneration integrated system, such as Figure 4 As shown, the method includes steps S110 to S140. The control method is applied to a console, and the console is connected to the console as shown in FIG. Figure 1The photovoltaic / wind power generation module 10, water electrolysis hydrogen production module 20, hydrogen storage module 30, hydrogen fuel cell cogeneration module 40 and hot water storage tank 50 in the community distributed green electricity hydrogen production and cogeneration integrated system shown are all connected.

[0052] S110. Obtain current meteorological data and equipment deployment information of photovoltaic / wind power generation modules in the target community, and determine the current power generation working mode of the photovoltaic / wind power generation modules based on a preset new energy power generation working mode recommendation strategy, the current meteorological data and the equipment deployment information.

[0053] In this embodiment, in order to realize the intelligent control of the community distributed green electricity hydrogen production and cogeneration integrated system by the control console (which can be understood as a computer room or edge server deployed in the community), the current meteorological data of the target community area where the community distributed green electricity hydrogen production and cogeneration integrated system is deployed can be obtained at a preset fixed time point every day (such as 6:00 in the morning) (which can be meteorological data within the next hour or meteorological data for the whole day). Taking the current meteorological data as the meteorological data for the next hour and the effectiveness period of the method of steps S110-S140 also within the next hour as an example (that is, the control console needs to control the execution of steps S110-S140 once every hour, and the technical solution is illustrated by taking the execution of steps S110-S140 once between 6:00 and 7:00 in the morning as an example), after determining the temperature information, wind information, light radiation intensity and other information in the current meteorological data, it can also be combined with the equipment deployment information of the photovoltaic / wind power generation modules in the target community as input data of the new energy power generation working mode recommendation strategy, and the new energy power generation working mode recommendation strategy outputs a current power generation working mode. Afterwards, the photovoltaic / wind power generation module 10 in the community's distributed green electricity hydrogen production and combined heat and power integrated system generates electricity according to the current power generation working mode.

[0054] During specific implementation, the strategy for recommending the working mode of new energy power generation can adopt a convolutional neural network, and the temperature information, wind information, light radiation intensity in the current meteorological data and the equipment deployment information of the photovoltaic / wind power generation modules in the target community form an input vector, which is input into the convolutional neural network. A classification result can be output to be used to select the target power generation working mode corresponding to the classification result from multiple preset power generation working modes as the current power generation working mode. Of course, the specific implementation of the strategy for recommending the working mode of new energy power generation is not limited to the use of convolutional neural networks, but can also adopt other implementation methods such as preset mapping tables, which can be flexibly set according to the actual needs of users. It can be seen that based on the current meteorological data of the area to which the target community belongs and the equipment deployment information of the photovoltaic / wind power generation modules in the target community, the specific power generation mode of the photovoltaic / wind power generation module can be determined quickly and intelligently.

[0055] In one embodiment, if Figure 5 As shown, step S110 includes:

[0056] S111. Determine photovoltaic power generation deployment information and wind power generation deployment information in the photovoltaic / wind power generation module according to the device deployment information;

[0057] S112. Determine the device startup type and device startup quantity in the photovoltaic / wind power generation module according to the weather type of the current meteorological data;

[0058] S113: Determine the current power generation working mode according to the new energy power generation working mode recommendation strategy, the device startup type, and the device startup quantity.

[0059] In this embodiment, after the console knows the equipment deployment information in the target community, it can first obtain the photovoltaic power generation deployment information in the photovoltaic / wind power generation module (that is, the specific deployment location and specific deployment quantity of each photovoltaic power generation panel in the target community can be obtained from the photovoltaic power generation deployment information) and the wind power generation deployment information (that is, the specific deployment location and specific deployment quantity of each wind power generation device in the target community can be obtained from the wind power generation deployment information).

[0060] Afterwards, the device activation type and number of devices in the photovoltaic / wind power generation module can be determined based on the weather type of the current meteorological data. For example, if the weather type corresponding to the current meteorological data is rainy, all wind power generation devices in the photovoltaic / wind power generation module can be activated to generate wind power, and the photovoltaic panels can be turned off. If the weather type corresponding to the current meteorological data is sunny, all wind power generation devices and photovoltaic panels in the photovoltaic / wind power generation module can be activated in corresponding quantities based on the wind information and the intensity of the sunlight radiation.

[0061] Finally, after knowing the device startup type and the number of devices started, by combining them with the new energy power generation working mode recommendation strategy (using classification models such as convolutional neural networks or preset mapping tables), the current power generation working mode can be quickly and intelligently determined.

[0062] S120. Determine, based on the current power generation operating mode, a first power supply ratio corresponding to the photovoltaic / wind power generation module supplying power to user-side electrical equipment, and a second power supply ratio corresponding to the water electrolysis hydrogen production module.

[0063] In this embodiment, after the console determines the current power generation mode corresponding to the photovoltaic / wind power generation module, for example, still referring to the above example, in the time interval of 6:00-7:00 in the morning, the photovoltaic / wind power generation module generates electricity in the current power generation mode, and can also determine the first power supply ratio corresponding to the power supply to the user-side electrical equipment and the second power supply ratio corresponding to the power supply to the water electrolysis hydrogen production module based on the power supply ratio corresponding to the current power generation mode. In the time interval of 6:00-7:00 in the morning, the power consumption of the general user-side electrical equipment is in the non-peak time period of the whole day. At this time, the first power supply ratio can be set to 50% and the second power supply ratio can be set to 50%, which means that 50% of the power generated by the photovoltaic / wind power generation module is delivered to the user-side electrical equipment for power supply, and the other 50% of the power generated by the photovoltaic / wind power generation module is delivered to the water electrolysis hydrogen production module for hydrogen production.

[0064] In one embodiment, step S120 includes:

[0065] The current hydrogen production power supply power when the photovoltaic / wind power generation module supplies power according to the second power supply ratio is obtained, and the corresponding hydrogen production of the water electrolysis hydrogen production module is controlled by the current hydrogen production power supply power.

[0066] In this embodiment, after determining the second power supply ratio corresponding to the power supply of the water electrolysis hydrogen production module, the current hydrogen production power supply can be determined based on the product of the power generation power of the photovoltaic / wind power generation module, the preset first transmission loss rate, and the second power supply ratio. The control console then sends a control signal to the water electrolysis hydrogen production module to control the water electrolysis hydrogen production module to produce hydrogen at the current hydrogen production power supply. This shows that the water electrolysis hydrogen production module's hydrogen production power can be flexibly controlled based on the second power supply ratio.

[0067] S130 , controlling the water electrolysis hydrogen production module to produce hydrogen when the photovoltaic / wind power generation module supplies power according to the second power supply ratio, and storing the hydrogen in the hydrogen storage module.

[0068] In this embodiment, after the control console determines the second power supply ratio corresponding to the electrolytic water hydrogen production module and the current hydrogen production power corresponding thereto, it can send a control signal to the electrolytic water hydrogen production module, and use the control signal to control the electrolytic water hydrogen production module to produce hydrogen at the current hydrogen production power. Moreover, the hydrogen produced by the electrolytic water hydrogen production module is not immediately used for power generation, but is first stored in a hydrogen storage module, and then hydrogen is obtained from the hydrogen storage module when there is a power supply demand.

[0069] S140. Based on the community electricity consumption history data of the target community, the current average electricity consumption data corresponding to the user-side electrical equipment and the preset hydrogen fuel cell power generation control strategy, determine the current power generation power of the hydrogen fuel cell cogeneration module to control the hydrogen fuel cell cogeneration module to generate electricity at the current power generation power.

[0070] In this embodiment, in order to more accurately and intelligently control the hydrogen fuel cell cogeneration module to perform cogeneration, the community electricity consumption history data of the target community can be obtained first (for example, the total electricity consumption, daily electricity consumption, and daily minimum electricity consumption of the target community in the previous natural month are obtained to form the community electricity consumption history data of the target community), the current average electricity consumption data corresponding to the user-side power-consuming equipment (in specific implementation, it can be the current average electricity consumption data in the target community in the previous hour time interval compared to the effective time interval of steps S110-S140, such as 5:00-6:00 in the morning) and a preset hydrogen fuel cell power generation control strategy (which can be a convolutional neural network, a recurrent neural network, etc., or a preset electricity consumption data-power generation power mapping relationship, etc.), and then the community electricity consumption history data of the target community and the current average electricity consumption data corresponding to the user-side power-consuming equipment are used as input data of the hydrogen fuel cell power generation control strategy, and the current power generation power of the hydrogen fuel cell cogeneration module can be obtained to control the hydrogen fuel cell cogeneration module to generate electricity at the current power generation power. It can be seen that based on the community electricity consumption history data of the target community and the current average electricity consumption data corresponding to the user-side electrical equipment, the current power generation power of the hydrogen fuel cell cogeneration module can be quickly and intelligently determined.

[0071] In one embodiment, if Figure 6 As shown, step S140 includes:

[0072] S141. Determine the minimum daily electricity consumption of the target community based on the historical electricity consumption data of the target community;

[0073] S142, obtaining the current estimated remaining power of the hydrogen fuel cell in the hydrogen fuel cell cogeneration module;

[0074] S143. If it is determined that the current remaining power exceeds the daily minimum power consumption, or it is determined that the full-day power consumption data corresponding to the current average power consumption data does not exceed the daily minimum power consumption, then based on the first hydrogen fuel cell power generation control sub-strategy in the hydrogen fuel cell power generation control strategy, determine the current power generation power of the hydrogen fuel cell cogeneration module.

[0075] In this embodiment, in order to more intelligently and flexibly determine the current power generation of the hydrogen fuel cell cogeneration module, the minimum daily power consumption of the target community can be determined based on the community power consumption history data of the target community. For example, the total power consumption, daily power consumption, daily average power consumption, and daily minimum power consumption of the target community in the previous natural month are obtained to form the community power consumption history data of the target community. The minimum daily power consumption of the target community can be obtained from the community power consumption history data. After that, the current estimated remaining power of the hydrogen fuel cell in the hydrogen fuel cell cogeneration module is obtained. Specifically, the current actual remaining power of the hydrogen fuel cell can be obtained through the power detection circuit in the hydrogen fuel cell, and then multiplied by a preset estimation coefficient to obtain the current estimated remaining power of the hydrogen fuel cell. Finally, it is determined whether the current remaining power exceeds the minimum daily power consumption, and whether the full-day power consumption data corresponding to the current average power consumption data exceeds the minimum daily power consumption. When it is determined that the current remaining power exceeds the daily minimum power consumption, or when it is determined that the full-day power consumption data corresponding to the current average power consumption data (the full-day power consumption data corresponding to the current average power consumption data is determined by multiplying the current average power consumption data by 24 hours) does not exceed the daily minimum power consumption, it means that even if the hydrogen fuel cell in the hydrogen fuel cell cogeneration module does not increase the power generation power, the power generation will not be insufficient to supply the user-side power equipment. At this time, it is necessary to determine the current power generation power of the hydrogen fuel cell cogeneration module based on the first hydrogen fuel cell power generation control sub-strategy in the hydrogen fuel cell power generation control strategy (the first hydrogen fuel cell power generation control sub-strategy is used to determine the current power generation power based on the daily minimum power consumption in the target community's community power consumption history data divided by a preset time length, where the preset time length can be 1 hour). It can be seen that based on the above method, the current power generation power of the hydrogen fuel cell cogeneration module can be determined quickly and intelligently.

[0076] In one embodiment, if Figure 6 As shown, after step S142, the method further includes:

[0077] S144. If it is determined that the current remaining power does not exceed the daily minimum power consumption, or it is determined that the full-day power consumption data corresponding to the current average power consumption data exceeds the daily minimum power consumption, then based on the second hydrogen fuel cell power generation control sub-strategy in the hydrogen fuel cell power generation control strategy, determine the current power generation power of the hydrogen fuel cell cogeneration module.

[0078] In this embodiment, when it is determined that the current remaining power does not exceed the daily minimum power consumption, or when it is determined that the full-day power consumption data corresponding to the current average power consumption data (the full-day power consumption data corresponding to the current average power consumption data is determined by multiplying the current average power consumption data by 24 hours) exceeds the daily minimum power consumption, it indicates that if the hydrogen fuel cell in the hydrogen fuel cell cogeneration module does not increase the power generation power, the power generated will be insufficient to supply the user-side power equipment. At this time, it is necessary to determine the current power generation power of the hydrogen fuel cell cogeneration module based on the second hydrogen fuel cell power generation control sub-strategy in the hydrogen fuel cell power generation control strategy (the second hydrogen fuel cell power generation control sub-strategy is used to determine the current power generation power based on the daily average power consumption in the target community's community power consumption history data divided by a preset time period, where the preset time period can be 1 hour). It can be seen that based on the above method, the current power generation power of the hydrogen fuel cell cogeneration module can also be determined quickly and intelligently.

[0079] Through the above method, community renewable energy green electricity can be used to produce and store hydrogen. When the user needs energy, hydrogen will be supplied to the hydrogen fuel cell cogeneration module, balancing the volatility and time difference of production capacity and energy consumption, improving the utilization rate of distributed renewable energy, alleviating the community's dependence on grid energy, and reducing carbon emissions.

[0080] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A control method for a community distributed green electricity hydrogen production and cogeneration integrated system, applied to a control console, characterized in that: The photovoltaic / wind power generation module, water electrolysis hydrogen production module, hydrogen storage module, hydrogen fuel cell cogeneration module and hot water storage tank in the community distributed green electricity hydrogen production and cogeneration integrated system are all connected to the console; the control method includes: Obtaining current meteorological data and equipment deployment information of photovoltaic / wind power generation modules in the target community, and determining the current power generation operating mode of the photovoltaic / wind power generation modules based on a preset new energy power generation operating mode recommendation strategy, the current meteorological data, and the equipment deployment information; Determining, according to the current power generation operating mode, a first power supply ratio corresponding to the photovoltaic / wind power generation module supplying power to the user-side electrical equipment, and a second power supply ratio corresponding to the water electrolysis hydrogen production module; Controlling the water electrolysis hydrogen production module to produce hydrogen when the photovoltaic / wind power generation module supplies power according to the second power supply ratio, and storing the hydrogen in the hydrogen storage module; Determine the current power generation power of the hydrogen fuel cell cogeneration module based on the target community's electricity consumption history data, the current average power consumption data corresponding to the user-side electrical equipment, and a preset hydrogen fuel cell power generation control strategy, so as to control the hydrogen fuel cell cogeneration module to generate electricity at the current power generation power; The determining of the current power generation power of the hydrogen fuel cell cogeneration module based on the community power consumption history data of the target community, the current average power consumption data corresponding to the user-side power consumption device, and a preset hydrogen fuel cell power generation control strategy includes: Determining the minimum daily electricity consumption of the target community based on the community electricity consumption history data of the target community; Obtaining a current estimated remaining power of the hydrogen fuel cell in the hydrogen fuel cell cogeneration module; If it is determined that the current estimated remaining power exceeds the daily minimum power consumption, or if it is determined that the full-day power consumption data corresponding to the current average power consumption data does not exceed the daily minimum power consumption, then based on the first hydrogen fuel cell power generation control sub-strategy in the hydrogen fuel cell power generation control strategy, determine the current power generation power of the hydrogen fuel cell cogeneration module; If it is determined that the current estimated remaining power does not exceed the daily minimum power consumption, or if it is determined that the full-day power consumption data corresponding to the current average power consumption data exceeds the daily minimum power consumption, then based on the second hydrogen fuel cell power generation control sub-strategy in the hydrogen fuel cell power generation control strategy, determine the current power generation power of the hydrogen fuel cell cogeneration module; Among them, the first hydrogen fuel cell power generation control sub-strategy is used to determine the current power generation power based on the daily minimum power consumption in the community electricity consumption history data of the target community divided by the preset duration; the second hydrogen fuel cell power generation control sub-strategy is used to determine the current power generation power based on the daily average power consumption in the community electricity consumption history data of the target community divided by the preset duration.

2. The control method of the community distributed green electricity hydrogen production and cogeneration integrated system according to claim 1 is characterized in that: The determining of the current power generation working mode of the photovoltaic / wind power generation module based on the preset new energy power generation working mode recommendation strategy, the current meteorological data, and the equipment deployment information includes: Determining photovoltaic power generation deployment information and wind power generation deployment information in the photovoltaic / wind power generation module according to the device deployment information; Determining the device startup type and device startup quantity in the photovoltaic / wind power generation module according to the weather type of the current meteorological data; The current power generation working mode is determined according to the new energy power generation working mode recommendation strategy, the device startup type and the device startup quantity.

3. The control method of the community distributed green electricity hydrogen production and cogeneration integrated system according to claim 1 is characterized in that: The controlling the water electrolysis hydrogen production module to produce hydrogen when the photovoltaic / wind power generation module supplies power according to the second power supply ratio includes: The current hydrogen production power supply power when the photovoltaic / wind power generation module supplies power according to the second power supply ratio is obtained, and the corresponding hydrogen production of the water electrolysis hydrogen production module is controlled by the current hydrogen production power supply power.

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