Dynamic regulation and control method and device for hydrogen storage amount and hydrogen production system

Abstract

The invention discloses a hydrogen storage capacity dynamic regulation and control method and device and a hydrogen production system, and belongs to the technical field of intelligent scheduling, and the method comprises the steps: obtaining the next-moment predicted hydrogen demand and the next-moment predicted wind-solar power generation capacity of a hydrogen storage structure; calculating the difference between the predicted hydrogen demand at the next moment and the hydrogen amount of the hydrogen storage system at the current moment to obtain a hydrogen amount difference; calculating the predicted hydrogen production amount of the hydrogen production system under the predicted wind-solar power generation amount at the next moment; when the hydrogen amount difference is larger than the predicted hydrogen production amount, a hydrogen consumption stopping instruction is generated; when the hydrogen amount difference is smaller than the predicted hydrogen production amount, a hydrogen consumption instruction is generated; a hydrogen fuel cell system is used as a regulation and control link, a control instruction is generated by taking the size relation between a hydrogen amount difference and a predicted hydrogen production amount as a standard, the hydrogen amount is dynamically adjusted, and it is guaranteed that the predicted hydrogen demand amount at the next moment is stably met; the hydrogen fuel cell system can also convert hydrogen into electric energy based on the hydrogen consumption instruction, so that the waste of hydrogen is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of intelligent scheduling technology, and in particular to a method and device for dynamically controlling hydrogen storage capacity, and a hydrogen production system. Background Art

[0002] With the global energy transformation and the development of low-carbon energy, hydrogen energy as a carrier of renewable energy is becoming more and more popular in the market. As a clean, efficient, safe and easy-to-store energy, hydrogen energy has gradually become an energy storage carrier for new energy systems such as wind power generation and photovoltaic power generation. Using green electricity generated by renewable energy such as wind and solar power to produce green hydrogen through water electrolysis can perfectly solve the problem of wind and solar power abandonment caused by the inability to access the Internet.

[0003] However, the current wind-solar hydrogen production coupling system still has some problems in its application. The volatility of wind and solar power generation makes it impossible to effectively match the hydrogen production equipment, especially it is impossible to adaptively schedule the operation of the hydrogen production equipment based on future user needs. That is to say, in the process of wind-solar hydrogen production coupling in the existing technology, due to the instability of wind and solar resources, the amount of hydrogen generated based on wind and solar resources is also unstable, and the storage capacity of the hydrogen storage structure is limited, and the user's hydrogen demand is also not a constant value. Therefore, there is nowhere to store hydrogen after it is generated, resulting in waste of resources, and the hydrogen storage amount is difficult to stably meet user needs.

[0004] Therefore, in the process of wind-solar hydrogen production coupling, the existing technology has the problem of being unable to stably provide hydrogen quantities that meet user needs, and wastes resources. Summary of the invention

[0005] In view of this, it is necessary to provide a method, device and hydrogen production system for dynamically controlling the hydrogen storage amount, so as to solve the problem that the existing technology cannot stably provide the hydrogen amount that meets the user's needs and wastes resources during the process of wind-solar hydrogen production coupling.

[0006] In order to solve the above problems, in a first aspect, the present invention provides a method for dynamically controlling the amount of hydrogen storage, which is applied to a hydrogen storage structure, wherein the hydrogen storage structure includes a hydrogen storage system, a hydrogen production system and a hydrogen fuel cell system, and the method includes: Obtain the predicted hydrogen demand of the hydrogen storage structure at the next moment and the predicted wind and solar power generation at the next moment; The hydrogen quantity difference is obtained by subtracting the predicted hydrogen demand at the next moment from the hydrogen quantity of the hydrogen storage system at the current moment; Calculate the predicted hydrogen production of the hydrogen production system under the predicted wind and solar power generation at the next moment; When the hydrogen quantity difference is greater than the predicted hydrogen production, a hydrogen consumption stop instruction is generated; When the hydrogen quantity difference is less than the predicted hydrogen production, a hydrogen consumption instruction is generated; Among them, the hydrogen consumption stop instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

[0007] In a possible implementation, obtaining the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure includes: Obtaining the meteorological data of the current location of the hydrogen storage structure; Based on the trained target neural network model, the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure are predicted in real time according to the meteorological data.

[0008] In a possible implementation, after generating the hydrogen consumption stop instruction when the hydrogen quantity difference is greater than the predicted hydrogen production quantity, it further includes: Powering the hydrogen production system based on the hydrogen fuel cell system until the hydrogen production system generates the hydrogen quantity corresponding to the hydrogen quantity difference.

[0009] In a possible implementation, the hydrogen storage structure further includes a wind power generation system, a photovoltaic power generation system, and an electrochemical energy storage system; after generating the hydrogen consumption instruction when the hydrogen quantity difference is less than the predicted hydrogen production quantity, it further includes: When the actual hydrogen storage quantity of the hydrogen storage system is equal to the predicted hydrogen demand at the next moment, generating a hydrogen consumption stop instruction and an energy storage instruction; The energy storage instruction is used to control the wind power generation system and the photovoltaic power generation system to directly send the converted electric energy to the electrochemical energy storage system.

[0010] In a possible implementation, the hydrogen storage structure further includes a power grid system; when generating the hydrogen consumption stop instruction when the hydrogen quantity difference is greater than the predicted hydrogen production quantity, it further includes: Providing a supplementary power source for the hydrogen production system based on the power grid system until the hydrogen production system generates the hydrogen quantity corresponding to the hydrogen quantity difference.

[0011] In a possible implementation, after sending the hydrogen consumption instruction to the hydrogen fuel cell system when the hydrogen quantity difference is less than the predicted hydrogen production quantity, it further includes: Subtracting the hydrogen quantity difference from the predicted hydrogen production quantity to obtain the excess hydrogen quantity; Transporting the hydrogen corresponding to the excess hydrogen quantity to the hydrogen fuel cell system.

[0012] In a possible implementation, after obtaining the predicted hydrogen demand at the next moment of the hydrogen storage structure under the predicted condition, it further includes: When there is an abrupt change in the external hydrogen demand of the hydrogen storage structure, correcting the predicted hydrogen demand at the next moment based on the externally abrupt hydrogen demand.

[0013] In a possible implementation, before predicting the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure in real time based on the trained target neural network model according to meteorological data, it further includes: Obtain the historical meteorological data set of the area where the hydrogen storage structure is located, and its corresponding data sets of user hydrogen demand and wind and solar power generation; Input the historical meteorological data set into the initial neural network model, and use the corresponding data sets of user hydrogen demand and wind and solar power generation as output labels to iteratively train the initial neural network model to a preset number of times until the trained target neural network model is obtained.

[0014] In a second aspect, the present invention further provides a hydrogen storage amount dynamic regulation device, including: A prediction module for obtaining the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure; A hydrogen amount difference calculation module for subtracting the predicted hydrogen demand at the next moment from the hydrogen amount at the current moment of the hydrogen storage system to obtain a hydrogen amount difference; A predicted hydrogen production amount calculation module for calculating the predicted hydrogen production amount of the hydrogen production system under the predicted wind and solar power generation at the next moment; A hydrogen storage amount regulation module for generating a stop hydrogen consumption instruction when the hydrogen amount difference is greater than the predicted hydrogen production amount; Generating a hydrogen consumption instruction when the hydrogen amount difference is less than the predicted hydrogen production amount; Among them, the stop hydrogen consumption instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

[0015] In a third aspect, the present invention further provides a hydrogen production system, including a memory and a processor, wherein, The memory is used to store programs; The processor is coupled to the memory and is used to execute the programs stored in the memory to implement the steps in the above-mentioned hydrogen storage amount dynamic regulation method.

[0016] The beneficial effects of adopting the above embodiments are as follows: The present invention provides a method for dynamically regulating the hydrogen storage amount. First, by predicting the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure, it is possible to regulate the hydrogen storage amount based on the predicted hydrogen demand at the next moment, so as to more stably provide sufficient hydrogen for users. Then, by taking the difference between the predicted hydrogen demand at the next moment and the hydrogen amount at the current moment, the amount of hydrogen that needs to be supplemented in the current hydrogen storage structure is determined. Also, because it is necessary to preferentially use the wind and solar power generation to reduce the resource consumption generated by storing the electric energy of wind and solar power generation, therefore, taking the predicted hydrogen production amount of the hydrogen production system at the predicted wind and solar power generation at the next moment as another reference quantity, it is judged whether it can meet the actual needs based on the future wind and solar power generation and the hydrogen amount of the current hydrogen storage structure. Finally, taking the hydrogen fuel cell system as the regulation link, generating a control instruction based on the magnitude relationship between the hydrogen amount difference and the predicted hydrogen production amount, and realizing the dynamic adjustment of the hydrogen amount of the hydrogen storage structure to ensure that the hydrogen amount demand of users is stably met. In particular, when the hydrogen amount difference is less than the predicted hydrogen production amount, the hydrogen fuel cell system converts hydrogen into electric energy based on the hydrogen consumption instruction, thereby effectively reducing the waste of hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic flowchart of an embodiment of the method for dynamically regulating the hydrogen storage amount provided by the present invention; Figure 2 It is a schematic structural diagram of an embodiment of the hydrogen storage structure provided by the present invention; Figure 3 It is a schematic structural diagram of an embodiment of the device for dynamically regulating the hydrogen storage amount provided by the present invention; Figure 4 It is a schematic block diagram of an embodiment of the hydrogen production system provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0019] It should be understood that the schematic drawings are not drawn to scale. The flowcharts used in the present invention illustrate operations implemented according to some embodiments of the present invention. It should be understood that the operations in the flowchart may not be implemented in sequence, and steps without logical context may be reversed or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart or remove one or more operations from the flowchart under the guidance of the content of the present invention. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor systems and / or microcontroller systems.

[0020] In the embodiments of the present invention, the descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the technical features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0021] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] In order to solve the problems in the prior art that in the process of wind-solar hydrogen production coupling, it is impossible to stably provide the hydrogen quantity that meets the user's needs and there is resource waste, the present invention provides a method and device for dynamically regulating the hydrogen storage quantity and a hydrogen production system, which will be described in detail below respectively.

[0023] As Figure 1 shown, Figure 1 is a schematic flowchart of an embodiment of the method for dynamically regulating the hydrogen storage quantity provided by the present invention, including: S101: Obtain the predicted hydrogen demand at the next moment and the predicted wind-solar power generation at the next moment of the hydrogen storage structure; In some embodiments of the present invention, the hydrogen storage structure includes a hydrogen storage system, a hydrogen production system, and a hydrogen fuel cell system.

[0024] Among them, the hydrogen storage system refers to a system that stores hydrogen in specific equipment for use when needed.

[0025] A hydrogen production system refers to a device that uses the electric energy converted from wind and solar resources to power the hydrogen production system and produce hydrogen. That is, the hydrogen production system can produce hydrogen based on the wind and solar power generation.

[0026] A hydrogen fuel cell system is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electric energy. Its core principle is to achieve energy conversion through electrochemical reactions and has an additional energy storage function. In short, the hydrogen fuel cell system can generate and store electric energy by consuming hydrogen, and can also discharge to extract electric energy for other devices, and can act as a regulator for controlling the amount of hydrogen.

[0027] S102: Subtract the predicted hydrogen demand at the next moment from the hydrogen amount at the current moment to obtain the hydrogen amount difference. S103: Calculate the predicted hydrogen production amount of the hydrogen production system under the predicted wind and solar power generation at the next moment. In some embodiments of the present invention, the hydrogen production system is a comprehensive process system, and its core goal is to produce hydrogen from hydrogen-containing raw materials through a series of chemical reactions or physical processes. The hydrogen production system in this application mainly obtains hydrogen by electrolyzing water.

[0028] It should be noted that in this embodiment, in order to match the actual situation, it is defaulted that the hydrogen production system is in a state of continuous operation.

[0029] S104: When the hydrogen amount difference is greater than the predicted hydrogen production amount, generate a stop hydrogen consumption instruction. S105: When the hydrogen amount difference is less than the predicted hydrogen production amount, generate a hydrogen consumption instruction. Among them, the stop hydrogen consumption instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

[0030] In some embodiments of the present invention, based on the stop hydrogen consumption instruction, control the hydrogen fuel cell system to stop the action of consuming hydrogen to generate electric energy; based on the hydrogen consumption instruction, control the hydrogen fuel cell system to start consuming hydrogen and generate and store electric energy at the same time.

[0031] In this embodiment, first, by predicting the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure, it is possible to adjust the hydrogen storage amount based on the future demand of the user - the predicted hydrogen demand at the next moment, so as to provide a sufficient amount of hydrogen to the user more stably. Then, by subtracting the predicted hydrogen demand at the next moment from the hydrogen amount at the current moment, the amount of hydrogen that needs to be replenished in the current hydrogen storage structure is determined. Also, because it is necessary to preferentially use the wind and solar power generation to reduce the resource consumption generated by storing the electric energy of wind and solar power generation, therefore, taking the predicted hydrogen production amount of the hydrogen production system at the predicted wind and solar power generation at the next moment as another reference quantity, it is judged whether it can meet the actual needs based on the future wind and solar power generation and combined with the hydrogen amount of the current hydrogen storage structure. Finally, taking the hydrogen fuel cell system as the control link, generating a control instruction based on the magnitude relationship between the hydrogen amount difference and the predicted hydrogen production amount, and realizing the dynamic adjustment of the hydrogen amount in the hydrogen storage structure to ensure that the hydrogen amount demand of the user is stably met. In particular, when the hydrogen amount difference is less than the predicted hydrogen production amount, the hydrogen fuel cell system converts hydrogen into electric energy based on the hydrogen consumption instruction, thereby effectively reducing the waste of hydrogen.

[0032] In some embodiments of the present invention, in S101, in order to obtain the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment under the predicted situation, first, obtain the meteorological data of the current location of the hydrogen storage structure. Then, based on the trained and complete target neural network model, predict the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure in real time according to the meteorological data.

[0033] In some embodiments of the present invention, meteorological data refers to a series of quantitative or qualitative information about the state and phenomena of the atmosphere, which can be obtained through observation, measurement or calculation and are used to describe and predict weather and climate. These data cover a wide range, from basic temperature, humidity, air pressure and wind speed to more complex parameters such as precipitation, radiation, cloud cover, visibility, etc.

[0034] As a multifunctional gas, hydrogen plays an important role in many fields such as energy, industry, medical treatment, aerospace, transportation and environmental protection. For example, it can be used as clean energy and industrial raw materials, etc., which will not be elaborated here.

[0035] Through the statistics of a large amount of meteorological data, it is found that there is a correlation between meteorological data and the hydrogen demand of users. For a specific meteorological situation, the change in the hydrogen demand of its corresponding users is not large. In addition, since meteorological data can describe weather and climate, the corresponding wind energy and light energy data can be obtained based on meteorological data.

[0036] Furthermore, the power generation calculation of the wind power generation system:

[0037] In the formula, Q 1 is the power generation of the wind power generation model; ρ is the air density of the location area; V is the local average wind speed of the location area; t is the operation time of the wind turbine generator set; S is the fan cross-sectional area of the wind turbine generator set.

[0038] Calculation of the power generation of the photovoltaic system:

[0039] In the formula, Q 2 is the power generation of the photovoltaic power generation model; is the total solar irradiance of the local horizontal plane; is the irradiance under standard conditions, which is a constant 1; is the component installation capacity of the photovoltaic power generation model; K is the comprehensive efficiency coefficient of photovoltaic power generation.

[0040] Therefore, for a specific meteorological situation, the corresponding wind energy and light energy data are stable and predictable. Then, for the same wind energy conversion device and light energy conversion device, their wind-light power generation is stable and predictable, and even the wind energy and light energy data are linearly related to their wind-light power generation. For the convenience of data processing, in this embodiment, the hydrogen demand and the wind-light power generation are directly used as the output labels of the model, which can reduce the data calculation amount.

[0041] In this embodiment, by constructing a neural network model to sort out the relationship among meteorological data, hydrogen demand, and wind-light power generation, it is possible to obtain the hydrogen demand and wind-light power generation corresponding to any meteorological data.

[0042] Furthermore, before predicting the next moment's predicted hydrogen demand and the next moment's predicted wind-light power generation of the hydrogen storage structure based on the trained target neural network model according to meteorological data, it is also necessary to train the initial neural network model.

[0043] Specifically: First, obtain the historical meteorological data set of the area where the hydrogen storage structure is located and its corresponding data sets of user hydrogen demand and wind-light power generation; then, input the historical meteorological data set into the initial neural network model, and use the corresponding data sets of user hydrogen demand and wind-light power generation as output labels to iteratively train the initial neural network model to a preset number of times until the trained target neural network model is obtained.

[0044] In this embodiment, by using the historical data set of the hydrogen storage structure itself as the training set, it can better ensure the consistency of the data, thereby ensuring the reliability of the target neural network model.

[0045] In some embodiments of the present invention, since the target neural network model makes predictions based on historical data, that is, when the hydrogen demand of the hydrogen storage structure changes suddenly due to external reasons, there may be a situation where the prediction effect of the predicted hydrogen demand at the next moment is inaccurate. Therefore, when there is a sudden change in the external hydrogen demand of the hydrogen storage structure, the predicted hydrogen demand at the next moment is corrected based on the sudden change in the external hydrogen demand.

[0046] In this embodiment, by accurately controlling the predicted hydrogen demand at the next moment, the normal operation of the hydrogen storage structure can be better ensured, and waste of hydrogen resources caused by the inability to adapt to external environmental changes can be avoided.

[0047] In some embodiments of the present invention, in S102, based on the predicted hydrogen demand at the next moment and combined with the hydrogen volume at the current moment, the hydrogen volume to be supplemented at the next moment, that is, the hydrogen volume difference, can be calculated by taking the difference, so as to quantitatively guide the work of producing hydrogen.

[0048] In some embodiments of the present invention, in S103, for a specific wind and solar power generation amount, the hydrogen production amount of the hydrogen production system in theory can be accurately calculated. Among them, the power consumption in the water electrolysis hydrogen production system The calculation formula is:

[0049] Among them, n is the number of electrons required for electrolysis of each mole of water (hydrogen n =2); F is the Faraday constant, approximately 96485 C / mol; V is the working voltage of the electrolytic cell; is the hydrogen production amount; is the total efficiency of the electrolysis system.

[0050] That is to say, based on the above formula, after obtaining the predicted wind and solar power generation amount at the next moment, the hydrogen production amount that the hydrogen production system can produce at the next moment can be directly inferred.

[0051] In some embodiments of the present invention, in S104, after obtaining the hydrogen volume difference and the predicted hydrogen production amount, in order to accurately guide the operation of the hydrogen fuel cell system, when the hydrogen volume difference is greater than the predicted hydrogen production amount, that is, the predicted hydrogen production amount at the next moment cannot fully supplement the hydrogen volume at the current moment, that is, the hydrogen demand of the hydrogen storage structure cannot be met at the next moment, a stop hydrogen consumption instruction needs to be generated to control the hydrogen fuel cell system to stop running, that is, to turn off the equipment that consumes hydrogen inside the hydrogen storage structure to minimize hydrogen consumption.

[0052] Further, even if the hydrogen fuel cell system no longer consumes hydrogen, there may still be a problem that it is difficult to effectively supplement the predicted hydrogen demand at the next moment due to the too small predicted wind and solar power generation at the next moment. And the simplest hydrogen storage structure itself only includes a hydrogen storage system, a hydrogen production system and a hydrogen fuel cell system. Therefore, when the hydrogen quantity difference is greater than the predicted hydrogen production quantity, after generating the stop hydrogen consumption instruction and the hydrogen quantity still cannot meet the requirement, the hydrogen fuel cell system powers the hydrogen production system until the hydrogen production system generates the hydrogen quantity corresponding to the hydrogen quantity difference.

[0053] The hydrogen fuel cell system itself may store some electric energy due to the previous energy accumulation. Therefore, the hydrogen fuel cell system can provide supplementary electric energy in addition to the electric energy converted from wind and solar power for the hydrogen production system.

[0054] In some embodiments of the present invention, in S105, since there are not only equipment depreciation of the hydrogen production system but also resource waste in the process of converting electric energy into hydrogen by the hydrogen production system, in order to accurately control the electric quantity delivered to the hydrogen production system and minimize resource waste as much as possible, the hydrogen storage structure further includes a wind power generation system, a photovoltaic power generation system and an electrochemical energy storage system, that is, the redundant electric energy collected and converted by the wind power generation system and the photovoltaic power generation system is converted into chemical energy instead of simply being converted into hydrogen.

[0055] Specifically, when the hydrogen quantity difference is less than the predicted hydrogen production quantity, after generating the hydrogen consumption instruction, when the actual hydrogen storage quantity of the hydrogen storage system is equal to the predicted hydrogen demand at the next moment, a stop hydrogen consumption instruction and an energy storage instruction are generated; The energy storage instruction is used to control the wind power generation system and the photovoltaic power generation system to directly send the converted electric energy to the electrochemical energy storage system.

[0056] In some embodiments of the present invention, the wind power generation system is a power system that uses wind to drive the blades of a wind turbine generator to rotate, and then increases the rotation speed through a speed increaser to promote the generator to generate electricity. The basic principle of wind power generation is that the kinetic energy of the wind is converted into mechanical energy through the blades of the wind turbine generator, and then further converted into electric energy through the generator.

[0057] In some embodiments of the present invention, the photovoltaic power generation system is a system that directly converts light energy into electric energy by using the photovoltaic effect at the semiconductor interface. This technology mainly relies on photovoltaic cells (also known as solar cells), and these cells form a cell module through series or parallel connection, and then cooperate with components such as a power controller to form a complete photovoltaic power generation device. The core component of the photovoltaic power generation system is the photovoltaic panel. When sunlight shines on the panel, photons interact with the semiconductor material in the panel, exciting electrons and thus generating an electric current. This electric current can be directly utilized or converted into alternating current through an inverter.

[0058] In some embodiments of the present invention, an electrochemical energy storage system is a device that uses chemical reactions to store and release energy. In an electrochemical energy storage system, a battery pack is the core component for storing energy. Common battery types include lithium-ion batteries, lead-acid batteries, sodium-sulfur batteries, and flow batteries, etc. They store electrical energy by converting it into chemical energy through chemical reactions. When energy needs to be released, the chemical energy in the battery is converted back into electrical energy for use by external devices.

[0059] It should be noted that wind power generation systems and photovoltaic power generation systems convert wind energy and light energy into electrical energy that can be directly utilized by the hydrogen production system. The electrochemical energy storage system can convert the excess electrical energy of wind power generation systems and photovoltaic power generation systems into chemical energy for storage. It should be noted that the energy conversion rate of the electrochemical energy storage system is much higher than the energy utilization rate of the hydrogen production system. Therefore, when a large amount of hydrogen is not needed, the electrochemical energy storage system can better collect and store the excess electrical energy, and the electrical energy stored in the electrochemical energy storage system can also supply power to the hydrogen production system later.

[0060] The electrochemical energy storage system has a similar function to the hydrogen fuel cell system in that both can regulate the energy in the hydrogen storage structure. The difference is that the hydrogen fuel cell system converts hydrogen into electrical energy and can directly perform fine control on the quantity of hydrogen; while the electrochemical energy storage system converts the electrical energy converted from wind energy and light energy into chemical energy. That is to say, the electrochemical energy storage system can, when wind energy and light energy are relatively abundant, store as much electrical energy as possible as a backup energy source for the hydrogen production system.

[0061] In this embodiment, by using the actual hydrogen storage amount of the hydrogen storage system as a judgment signal, the operation conditions of the hydrogen production system, hydrogen fuel cell system, and electrochemical energy storage system are adaptively regulated, which can not only ensure that the amount of hydrogen meets the actual needs, but also improve the recovery and utilization rate of electrical energy through the electrochemical energy storage system; in particular, since the signal for generating the command is that the actual hydrogen storage amount of the hydrogen storage system is equal to the predicted hydrogen demand at the next moment, the problem of control command disorder caused by adjusting the amount of hydrogen under multiple conditions is avoided.

[0062] In some embodiments of the present invention, when the hydrogen quantity difference is less than the predicted hydrogen production amount, after sending a hydrogen consumption command to the hydrogen fuel cell system, there may still be a large surplus of hydrogen. If the excess hydrogen cannot be processed in time, there may be a problem of waste of hydrogen resources. Therefore, in order to accurately control the quantity of hydrogen and avoid waste of hydrogen while consuming as little hydrogen as possible, specifically, first, the predicted hydrogen production amount is subtracted from the hydrogen quantity difference to obtain the excess hydrogen quantity; then, the hydrogen corresponding to the excess hydrogen quantity is transported to the hydrogen fuel cell system.

[0063] In this embodiment, the hydrogen storage amount of the hydrogen storage system is precisely controlled with the predicted hydrogen production amount as the reference quantity, and the control of the hydrogen amount of the order of magnitude can be accurately achieved.

[0064] On the other hand, based on the electrochemical energy storage system, when the hydrogen amount difference is greater than the predicted hydrogen production amount, that is, when the predicted hydrogen production amount cannot meet the actual needs, it indicates that the power supply of the wind power generation system and the photovoltaic power generation system cannot meet the needs. Therefore, the electrochemical energy storage system is also used to supply power to the hydrogen production system until the hydrogen production system generates the hydrogen amount corresponding to the hydrogen amount difference.

[0065] In this embodiment, by using the electrochemical energy storage system to supply power to the hydrogen production system, the problem of being unable to provide a sufficient amount of hydrogen due to the unstable conversion amount of wind and light energy can be appropriately alleviated.

[0066] Furthermore, in order to cope with the situation of a sharp increase in hydrogen demand, that is, when the current hydrogen storage system does not store a sufficient amount of hydrogen, and based on the electric energy that can be provided by the wind power generation system, the photovoltaic power generation system, the hydrogen fuel cell system, and the electrochemical energy storage system, it is also impossible to produce and supplement a sufficient amount of hydrogen through the hydrogen production system, it is also necessary to add a power grid system, that is, an external power grid, to the hydrogen storage structure; specifically, when the hydrogen production system cannot generate the hydrogen amount corresponding to the hydrogen amount difference, the power grid system is used to provide a supplementary power supply to the hydrogen production system until the hydrogen production system generates the hydrogen amount corresponding to the hydrogen amount difference.

[0067] In some embodiments of the present invention, the power grid system, also widely known as the power system, is a huge comprehensive system covering various links such as power generation, power transmission, power transformation, power distribution, and power consumption. Its core task is to convert the primary energy in nature into electric energy through a generator, and then, through the links of power transmission, power transformation, and power distribution, safely, reliably, continuously, and economically transmit the electric energy to the user side. And the user side in this application refers to the hydrogen production system.

[0068] In this embodiment, by using the power grid system as the energy supplement device for the hydrogen production system, since the power grid system is inexhaustible, therefore, in any case, it can provide sufficient electric energy for the hydrogen production system, and thus ensure that the hydrogen storage structure can produce a sufficient amount of hydrogen to meet the actual needs.

[0069] In some embodiments of the present invention, in order to bring all the elements together to clearly show the operation of the hydrogen storage structure, as Figure 2 shown Figure 2FIG. 0 is a schematic structural diagram of an embodiment of the hydrogen storage structure provided by the present invention. In order to achieve automatic control, the hydrogen storage structure further includes a total control system. During the dynamic regulation of the hydrogen storage amount, first, the total control system predicts the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment through meteorological data and data at the user terminal. Then, the photovoltaic power generation system and the wind power generation system preferentially generate electric energy and transmit the electric energy to the hydrogen production system, so that the hydrogen production system operates to produce hydrogen. Secondly, in combination with the hydrogen storage amount of the hydrogen storage system, the predicted hydrogen demand at the next moment, and the predicted hydrogen production amount, a stop hydrogen consumption instruction and / or a hydrogen consumption instruction and / or an energy storage instruction are adaptively generated, so as to control the energy flow direction of the photovoltaic power generation system, the wind power generation system, the hydrogen production system, the electrochemical energy storage system, the hydrogen fuel cell system, and the hydrogen storage system, that is, to determine whether to produce hydrogen, consume hydrogen, or store energy. For specific reference, please refer to the situation description in the above text and will not be elaborated here. In particular, the power grid system is mainly used to provide auxiliary power supply when the hydrogen production system requires a large amount of electricity. The specific situations to be dealt with are also described in the above text and will not be elaborated here.

[0070] To better implement the dynamic regulation method of the hydrogen storage amount in the embodiments of the present invention, correspondingly, the embodiments of the present invention also provide a device for dynamically regulating the hydrogen storage amount, as Figure 3 shown. Figure 3 FIG. 7 is a schematic structural diagram of an embodiment of the hydrogen storage amount dynamic regulation device provided by the present invention. The hydrogen storage amount dynamic regulation device 300 includes: A prediction module 301, configured to obtain the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure; A hydrogen amount difference calculation module 302, configured to subtract the hydrogen amount at the current moment from the predicted hydrogen demand at the next moment to obtain a hydrogen amount difference; A predicted hydrogen production amount calculation module 303, configured to calculate the predicted hydrogen production amount of the hydrogen production system under the predicted wind and solar power generation at the next moment; A hydrogen storage amount regulation module 304, configured to generate a stop hydrogen consumption instruction when the hydrogen amount difference is greater than the predicted hydrogen production amount; Generate a hydrogen consumption instruction when the hydrogen amount difference is less than the predicted hydrogen production amount; Wherein, the stop hydrogen consumption instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

[0071] As Figure 4 shown. Figure 4 FIG. 26 is a block diagram of an embodiment of the hydrogen production system provided by the present invention. The hydrogen production system 400 includes a processor 401, a memory 402, and a display 403. Figure 4 Only some components of the hydrogen production system 400 are shown, but it should be understood that it is not required to implement all the shown components, and more or fewer components can be alternatively implemented.

[0072] In some embodiments, the processor 401 may be a central processing unit (CPU), a microprocessor, or other data processing chips, which are used to run the program code stored in the memory 402 or process data, such as the dynamic regulation method of hydrogen storage amount in the present invention.

[0073] In some embodiments, the processor 401 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 401 may be local or remote. In some embodiments, the processor 401 may be implemented on a cloud platform. In one embodiment, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination of the above.

[0074] In some embodiments, the memory 402 may be an internal storage unit of the hydrogen production system 400, such as the hard disk or memory of the hydrogen production system 400. In some other embodiments, the memory 402 may also be an external storage device of the hydrogen production system 400, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the hydrogen production system 400.

[0075] Furthermore, the memory 402 may also include both the internal storage unit and the external storage device of the hydrogen production system 400. The memory 402 is used to store the application software installed in the hydrogen production system 400 and various types of data.

[0076] In some embodiments, the display 403 may be an LED display, a liquid crystal display, a touch liquid crystal display, and an OLED (organic light-emitting diode) toucher, etc. The display 403 is used to display the information in the hydrogen production system 400 and to display a visual user interface. The components 401-403 of the hydrogen production system 400 communicate with each other through a system bus.

[0077] In one embodiment, when the processor 401 executes the dynamic regulation program of hydrogen storage amount in the memory 402, the following steps may be implemented: Obtain the predicted hydrogen demand at the next moment and the predicted wind and solar power generation at the next moment of the hydrogen storage structure; Subtract the predicted hydrogen demand at the next moment from the hydrogen amount at the current moment to obtain a hydrogen amount difference; Calculate the predicted hydrogen production amount of the hydrogen production system under the predicted wind and solar power generation at the next moment; When the hydrogen amount difference is greater than the predicted hydrogen production amount, generate a stop hydrogen consumption instruction; When the hydrogen quantity difference is less than the predicted hydrogen production quantity, a hydrogen consumption instruction is generated; Among them, the hydrogen consumption stop instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

[0078] It should be understood that when the processor 401 executes the hydrogen storage quantity dynamic regulation program in the memory 402, in addition to the above functions, other functions can also be realized. For specific details, reference can be made to the descriptions of the corresponding method embodiments above.

[0079] Furthermore, the type of the hydrogen production system 400 mentioned in the embodiments of the present invention is not specifically limited. The hydrogen production system 400 can be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of the portable electronic device include, but are not limited to, portable electronic devices equipped with IOS, android, microsoft or other operating systems. The above portable electronic devices can also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (such as a touch panel). It should also be understood that in some other embodiments of the present invention, the hydrogen production system 400 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touch panel).

[0080] Correspondingly, an embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium is used to store computer-readable programs or instructions. When the programs or instructions are executed by a processor, the steps or functions in the hydrogen storage quantity dynamic regulation method provided by the above method embodiments can be realized.

[0081] Those skilled in the art can understand that all or part of the processes for implementing the methods in the above embodiments can be completed by instructing relevant hardware (such as a processor, a controller, etc.) through a computer program. The computer program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory, etc.

[0082] The above has introduced in detail the hydrogen storage quantity dynamic regulation method, device, electronic device and storage medium provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for dynamically controlling hydrogen storage capacity, characterized in that: Applied to a hydrogen storage structure, the hydrogen storage structure includes a hydrogen storage system, a hydrogen production system and a hydrogen fuel cell system, the method includes: Obtain the predicted hydrogen demand of the hydrogen storage structure at the next moment and the predicted wind and solar power generation at the next moment; Subtract the predicted hydrogen demand at the next moment from the hydrogen quantity of the hydrogen storage system at the current moment to obtain a hydrogen quantity difference; Calculate the predicted hydrogen production of the hydrogen production system under the predicted wind and solar power generation at the next moment; When the hydrogen amount difference is greater than the predicted hydrogen production amount, generating a hydrogen consumption stop instruction; When the hydrogen amount difference is less than the predicted hydrogen production amount, generating a hydrogen consumption instruction; The hydrogen consumption stop instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

2. The method for dynamically controlling hydrogen storage capacity according to claim 1, characterized in that: The obtaining of the predicted hydrogen demand of the hydrogen storage structure at the next moment and the predicted wind and solar power generation at the next moment includes: Obtaining meteorological data of the current location of the hydrogen storage structure; Based on the fully trained target neural network model, the predicted hydrogen demand of the hydrogen storage structure at the next moment and the predicted wind and solar power generation at the next moment are predicted in real time according to the meteorological data.

3. The method for dynamically controlling hydrogen storage capacity according to claim 1, characterized in that: When the hydrogen amount difference is greater than the predicted hydrogen production amount, after generating the hydrogen consumption stop instruction, the method further includes: The hydrogen production system is powered based on the hydrogen fuel cell system until the hydrogen production system generates an amount of hydrogen corresponding to the hydrogen amount difference.

4. The method for dynamically controlling hydrogen storage capacity according to claim 1, characterized in that: The hydrogen storage structure further includes a wind power generation system, a photovoltaic power generation system and an electrochemical energy storage system; when the hydrogen amount difference is less than the predicted hydrogen production amount, after generating a hydrogen consumption instruction, it also includes: When the actual hydrogen storage amount of the hydrogen storage system is equal to the predicted hydrogen demand at the next moment, generating a hydrogen consumption stop instruction and an energy storage instruction; The energy storage instruction is used to control the wind power generation system and the photovoltaic power generation system to send the converted electric energy directly to the electrochemical energy storage system.

5. The method for dynamically controlling hydrogen storage capacity according to claim 1, characterized in that: The hydrogen storage structure further includes a power grid system; when the hydrogen amount difference is greater than the predicted hydrogen production amount, a hydrogen consumption stop instruction is generated, further including: The power grid system provides supplementary power to the hydrogen production system until the hydrogen production system generates an amount of hydrogen corresponding to the hydrogen amount difference.

6. The method for dynamically controlling hydrogen storage capacity according to claim 1, characterized in that: When the hydrogen amount difference is less than the predicted hydrogen production amount, after sending the hydrogen consumption instruction to the hydrogen fuel cell system, the method further includes: Subtracting the predicted hydrogen production from the hydrogen quantity difference to obtain excess hydrogen quantity; The hydrogen corresponding to the excess hydrogen amount is delivered to the hydrogen fuel cell system.

7. The method for dynamically controlling hydrogen storage capacity according to claim 1, characterized in that: After obtaining the predicted hydrogen demand of the hydrogen storage structure at the next moment under the predicted situation, it also includes: When there is a sudden change in the external hydrogen demand of the hydrogen storage structure, the predicted hydrogen demand at the next moment is corrected based on the sudden change in the external hydrogen demand.

8. The method for dynamically controlling hydrogen storage capacity according to claim 2, characterized in that: Before predicting the predicted hydrogen demand of the hydrogen storage structure at the next moment and the predicted wind and solar power generation at the next moment in real time according to the meteorological data based on the trained target neural network model, it also includes: Obtain a historical meteorological data set of the area where the hydrogen storage structure is located and its corresponding user hydrogen demand data set and wind and solar power generation data set; The historical meteorological data set is input into the initial neural network model, and the corresponding user hydrogen demand data set and wind and solar power generation data set are used as output labels, and the initial neural network model is iteratively trained to a preset number of times until the fully trained target neural network model is obtained.

9. A hydrogen storage capacity dynamic control device, applied to a hydrogen storage structure, the hydrogen storage structure comprising a hydrogen storage system, a hydrogen production system and a hydrogen fuel cell system, characterized in that: include: A prediction module, used to obtain the predicted hydrogen demand of the hydrogen storage structure at the next moment and the predicted wind and solar power generation at the next moment; A hydrogen quantity difference calculation module, used for subtracting the predicted hydrogen demand at the next moment from the hydrogen quantity of the hydrogen storage system at the current moment to obtain the hydrogen quantity difference; A predicted hydrogen production calculation module, used to calculate the predicted hydrogen production of the hydrogen production system under the predicted wind and solar power generation at the next moment; A hydrogen storage quantity control module, configured to generate a hydrogen consumption stop instruction when the hydrogen quantity difference is greater than the predicted hydrogen production quantity; When the hydrogen amount difference is less than the predicted hydrogen production amount, generating a hydrogen consumption instruction; The hydrogen consumption stop instruction and the hydrogen consumption instruction are used to control the operation of the hydrogen fuel cell system.

10. A hydrogen production system, characterized in that: comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the method for dynamically controlling the hydrogen storage amount as described in any one of claims 1 to 8 above.

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