Control method of photovoltaic water-catching hydrogen production system

Abstract

The invention discloses a control method of a photovoltaic water-catching hydrogen production system. The photovoltaic water-catching hydrogen production system at least comprises a photovoltaic array, an air water-catching unit and an electrolytic hydrogen production unit. The method comprises the following steps: acquiring the real-time output power of the photovoltaic array; determining a first demand power of the air water catching unit, determining a second demand power of the electrolytic hydrogen production unit, and determining a total demand power based on the first demand power and the second demand power; under the condition that the total demand power is larger than the real-time output power, priority information of the air water catching unit and the electrolytic hydrogen production unit is determined; and on the basis of the priority information, electric energy of the photovoltaic array is distributed, a distribution result is obtained, and electric power is supplied to the air water catching unit and the electrolytic hydrogen production unit according to the distribution result. The problems that in the prior art, a photovoltaic water-catching hydrogen production system is poor in flexibility, and reasonable utilization of the photovoltaic water-catching hydrogen production system is difficult to achieve are solved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a control method for a photovoltaic water capture and hydrogen production system. Background Art

[0002] Under the current energy and environmental challenges, exploring sustainable energy production and storage methods has become a hot topic in global research. Off-grid photovoltaic drive systems are considered to be an important way to achieve energy self-sufficiency and reduce carbon emissions because of their clean, renewable and independent characteristics from traditional power grids. However, the intermittent and instability of photovoltaic systems limit their application in areas without power grids or unstable power grids, especially in water-scarce areas such as Shagohuang. The excess power of photovoltaic systems cannot be effectively used, and the shortage of water resources directly affects the lives of local residents and industrial production.

[0003] As an emerging way to obtain water resources, air water capture technology can extract water from the air without the need for groundwater resources, providing a solution for arid areas. However, the electricity consumed in the water capture process usually comes from the traditional power grid, which is not feasible in many cases, especially in off-grid environments. As a way to produce green hydrogen, water electrolysis can convert electricity from renewable energy into chemical energy for storage and further use as an energy carrier. However, the efficiency and cost of water electrolysis are usually closely related to the source of electricity. Using electricity generated by fossil fuels to produce hydrogen is not only inefficient but also less flexible.

[0004] Based on the above background, the present application aims to propose an off-grid photovoltaic-driven integrated system for air water capture and hydrogen production, which can efficiently utilize solar energy resources and reasonably distribute electrical energy to achieve the rational utilization of the photovoltaic water capture and hydrogen production system and enhance the flexibility of the photovoltaic water capture and hydrogen production system. Summary of the invention

[0005] The embodiment of the present application provides a control method for a photovoltaic water capture hydrogen production system, so as to at least solve the problem in the related art that the photovoltaic water capture hydrogen production system has poor flexibility and is difficult to reasonably utilize.

[0006] According to an embodiment of the present application, a control method for a photovoltaic water capture and hydrogen production system is provided, wherein the photovoltaic water capture and hydrogen production system comprises at least a photovoltaic array, an air water capture unit and an electrolysis hydrogen production unit; comprising: obtaining the real-time output power of the photovoltaic array; determining a first required power of the air water capture unit, and determining a second required power of the electrolysis hydrogen production unit, and determining a total required power based on the first required power and the second required power; determining priority information of the air water capture unit and the electrolysis hydrogen production unit when the total required power is greater than the real-time output power; allocating the electric energy of the photovoltaic array based on the priority information, obtaining an allocation result, and supplying power to the air water capture unit and the electrolysis hydrogen production unit according to the allocation result.

[0007] In an exemplary embodiment, obtaining the real-time output power of the photovoltaic array includes: obtaining real-time power parameters of the photovoltaic array; the real-time power parameters include real-time current and real-time voltage of the photovoltaic array; and determining the real-time output power of the photovoltaic array based on the real-time current and real-time voltage.

[0008] In an exemplary embodiment, determining the first required power of the air water capture unit includes: determining a target water replenishment amount of the air water capture unit, and environmental parameters when the air water capture unit is operating, the environmental parameters including air temperature, humidity and atmospheric pressure; based on the target water replenishment amount and the environmental parameters, determining the first required power of the air water capture unit.

[0009] In an exemplary embodiment, determining the second required power of the hydrogen production unit by electrolysis includes: determining the electrolysis efficiency and the target hydrogen production of the hydrogen production unit by electrolysis; and determining the second required power of the hydrogen production unit by electrolysis according to the electrolysis efficiency and the target hydrogen production.

[0010] In an exemplary embodiment, when the total required power is greater than the real-time output power, determining the priority information of the air water capture unit and the electrolysis hydrogen production unit includes: when the total required power is greater than the real-time output power, determining application information of the air water capture unit and the electrolysis hydrogen production unit; and determining the priority information of the air water capture unit and the electrolysis hydrogen production unit based on the application information of the air water capture unit and the electrolysis hydrogen production unit.

[0011] In an exemplary embodiment, the electric energy of the photovoltaic array is allocated based on the priority information to obtain an allocation result, and the air water capture unit and the electrolysis hydrogen production unit are supplied with electricity according to the allocation result, including: based on the priority information, the electric energy of the photovoltaic array is allocated according to a preset electric energy ratio to obtain an allocation result, and the air water capture unit and the electrolysis hydrogen production unit are supplied with electricity according to the allocation result.

[0012] According to another embodiment of the embodiment of the present application, a photovoltaic water capture and hydrogen production system is also provided, the system comprising an electronic device, a photovoltaic array, an air water capture unit and an electrolysis hydrogen production unit, the electronic device being used to obtain the real-time output power of the photovoltaic array; determine the first required power of the air water capture unit, and determine the second required power of the electrolysis hydrogen production unit, and determine the total required power based on the first required power and the second required power; when the total required power is greater than the real-time output power, determine the priority information of the air water capture unit and the electrolysis hydrogen production unit; based on the priority information, allocate the electric energy of the photovoltaic array, obtain the allocation result, and supply power to the air water capture unit and the electrolysis hydrogen production unit according to the allocation result.

[0013] According to another embodiment of the embodiment of the present application, a control device of a photovoltaic water capture and hydrogen production system is also provided, including: an acquisition module for acquiring the real-time output power of the photovoltaic array; a determination module for determining the first required power of the air water capture unit, and determining the second required power of the electrolysis hydrogen production unit, and determining the total required power based on the first required power and the second required power; the determination module is also used to determine the priority information of the air water capture unit and the electrolysis hydrogen production unit when the total required power is greater than the real-time output power; an allocation module is used to allocate the electric energy of the photovoltaic array based on the priority information, obtain the allocation result, and supply power to the air water capture unit and the electrolysis hydrogen production unit according to the allocation result.

[0014] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above method when running.

[0015] According to another aspect of the embodiments of the present application, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the method through the computer program.

[0016] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0017] In the embodiment of the present application, the output power of the photovoltaic array is monitored in real time, and the total power demand of the air water capture unit and the electrolytic hydrogen production unit is determined, so that the current power demand can be clearly understood, providing a basis for power distribution and ensuring the balance of power supply and demand. When the total power demand is greater than the real-time output power, by determining the priority information, the module operation status can be intelligently adjusted to give priority to the operation requirements of key modules, thereby enhancing the flexibility and adaptability of the photovoltaic water capture hydrogen production system and realizing the rational use of the photovoltaic water capture hydrogen production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a hardware structure block diagram of a computer terminal of a control method of a photovoltaic water capture hydrogen production system according to an embodiment of the present application;

[0020] Figure 2 is a flow chart of a control method of a photovoltaic water capture and hydrogen production system according to an embodiment of the present application;

[0021] Figure 3 is a structural block diagram of a photovoltaic water capture and hydrogen production system according to an embodiment of the present application;

[0022] Figure 4 It is a structural block diagram of a control device of a photovoltaic water capture and hydrogen production system according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices; "plurality" means two or more.

[0025] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal or similar computing device or cloud platform or independent physical server or software platform, wherein the above software platform is run through one or more servers. Taking running on a computer terminal as an example, Figure 1 1 is a hardware structure block diagram of a control method for a photovoltaic water capture hydrogen production system according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or more ( Figure 1 Only one is shown in the figure) processor 102 and memory 104 for storing data. In an exemplary embodiment, the computer terminal may also include a transmission device 106 for communication functions and an input and output device 108, wherein the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA. A person skilled in the art can understand that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Equivalent functions or comparisons shown Figure 1 A different configuration with more features is shown.

[0026] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the methods in the embodiments of the present application. The processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, that is, the above-mentioned methods are implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0027] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0028] In this embodiment, a control method for a photovoltaic water capture and hydrogen production system is provided, which is applied to the above-mentioned computer device. Figure 2 : is a flow chart of a control method of a photovoltaic water capture hydrogen production system according to an embodiment of the present application, the flow chart includes the following steps:

[0029] Step S202, obtaining the real-time output power of the photovoltaic array;

[0030] Step S204, determining a first power requirement of the air water capture unit, and determining a second power requirement of the electrolytic hydrogen production unit, and determining a total power requirement based on the first power requirement and the second power requirement;

[0031] Step S206, when the total required power is greater than the real-time output power, determining the priority information of the air water capture unit and the electrolytic hydrogen production unit;

[0032] Step S208, based on the priority information, the electric energy of the photovoltaic array is distributed to obtain a distribution result, and electric power is supplied to the air water capture unit and the electrolytic hydrogen production unit according to the distribution result.

[0033] In the embodiment of the present application, the output power of the photovoltaic array is monitored in real time, and the total power demand of the air water capture unit and the electrolytic hydrogen production unit is determined, so that the current power demand can be clearly understood, providing a basis for power distribution and ensuring the balance of power supply and demand. When the total power demand is greater than the real-time output power, by determining the priority information, the module operation status can be intelligently adjusted to give priority to the operation requirements of key modules, thereby enhancing the flexibility and adaptability of the photovoltaic water capture hydrogen production system and realizing the rational use of the photovoltaic water capture hydrogen production system.

[0034] In an exemplary embodiment, obtaining the real-time output power of the photovoltaic array includes: obtaining real-time power parameters of the photovoltaic array; the real-time power parameters include real-time current and real-time voltage of the photovoltaic array; based on the real-time current and real-time voltage, determining the real-time output power of the photovoltaic array.

[0035] Among them, the sensors can measure the current and voltage of the photovoltaic array in real time through the photovoltaic-specific current sensor (CT) and voltage sensor (PT). The current sensor is used to measure the current intensity passing through the photovoltaic array, while the voltage sensor is used to measure the voltage level at both ends of the photovoltaic array. These data are obtained in real time and reflect the current operating status and power output of the photovoltaic array.

[0036] Based on the processed real-time current and voltage data, the electronic device uses the electric power calculation formula to calculate the real-time output power of the photovoltaic array. Through real-time calculation, it is possible to accurately understand the power output of the photovoltaic array under the current lighting conditions, providing a basis for subsequent power distribution and control.

[0037] In an exemplary embodiment, determining the first required power of the air water capture unit includes: determining a target water replenishment amount of the air water capture unit, and environmental parameters when the air water capture unit is operating, the environmental parameters including air temperature, humidity and atmospheric pressure; based on the target water replenishment amount and the environmental parameters, determining the first required power of the air water capture unit.

[0038] Among them, a target water replenishment volume can be set based on the water demand of downstream applications, such as drinking water supply, industrial water or agricultural irrigation. This target water replenishment volume is the volume or mass of water that the air water capture unit should produce within a specific time period. For example, for a small off-grid system, the target water replenishment volume may be set to 50 liters per day.

[0039] The operating efficiency of the air-water capture unit is affected by the surrounding environmental conditions, including air temperature, humidity, and atmospheric pressure. These parameters are measured in real time through integrated environmental monitoring sensors such as temperature sensors, humidity sensors, and air pressure sensors. For example, in dry and desertified areas, humidity may be a critical parameter that directly affects the water production capacity of the air-water capture unit.

[0040] Based on the target water replenishment volume and the current environmental parameters, the water production efficiency of the air capture unit is calculated, that is, the amount of water that can be produced per unit power. The water production efficiency is affected by many factors such as air temperature, humidity, and atmospheric pressure. Generally, the higher the humidity, the higher the water production efficiency of the air capture unit. For example, under certain environmental conditions, the air capture unit may need to consume 1 liter of water per kilowatt-hour of electricity.

[0041] Based on the water production efficiency and the target water replenishment volume, the minimum electric power required by the air water capture unit to achieve the target water replenishment volume, i.e., the first required power, is calculated. For example, if the target water replenishment volume is 50 liters per day, and the water production efficiency is 1 liter of water per kilowatt-hour of electricity, then the first required power of the air water capture unit is 50 kilowatt-hours. Furthermore, if the running time of the water replenishment unit is 8 hours, then the first required power is 50 kilowatt-hours / 8 hours = 6.25 kilowatts.

[0042] In some embodiments, the air water capture unit can have multiple operating modes, such as high-efficiency mode or energy-saving mode, and the water production efficiency in different modes will be different. Therefore, when determining the first required power, the specific operating mode and water production efficiency can be considered to ensure the accuracy and practicality of the calculation. The first required power of the air water capture unit can be dynamically adjusted according to real-time environmental parameters and downstream demand during system operation. For example, when the humidity increases, the water production efficiency of the air water capture unit increases, and the first required power may need to be reduced; conversely, when the humidity decreases, the power supply may need to be increased to maintain the target water replenishment amount.

[0043] In the above embodiment, the first required power of the air water capture unit can be accurately calculated based on the target water replenishment amount and the operating environment conditions, which provides key information for realizing intelligent power distribution and optimizing system operating efficiency.

[0044] In an exemplary embodiment, determining the second required power of the hydrogen production unit by electrolysis includes: determining the electrolysis efficiency and the target hydrogen production of the hydrogen production unit by electrolysis; and determining the second required power of the hydrogen production unit by electrolysis according to the electrolysis efficiency and the target hydrogen production.

[0045] It should be noted that electrolysis efficiency refers to the ratio of the actual amount of hydrogen produced during the electrolysis process to the theoretical maximum output, and also reflects the effectiveness of converting electrical energy into chemical energy (hydrogen). The electrolysis efficiency is affected by many factors, including the design of the electrolyzer, operating temperature, pressure, current density, and the type and concentration of the electrolyte. Usually, the efficiency is determined by experimental data or technical specifications provided by the equipment manufacturer. For example, an electrolyzer may have an electrolysis efficiency of 85% under specific operating conditions.

[0046] Based on the demand for hydrogen from downstream applications, such as as a fuel, chemical raw material, or for hydrogen energy storage, a target hydrogen production can be set. This may be the volume or mass of hydrogen that needs to be produced each day.

[0047] According to the chemical reaction principle of hydrogen production by electrolysis of water, it can be determined that the production of 1 standard cubic meter of hydrogen theoretically requires 1.17 kWh of electricity. Therefore, first calculate the theoretical electricity demand based on the target hydrogen production. For example, for a hydrogen production of 100 standard cubic meters per day, the theoretical electricity demand is 117 kWh.

[0048] Considering that the actual electrolysis efficiency is lower than the theoretical value, the actual power demand will be higher than the theoretical power demand. Therefore, the theoretical power demand needs to be adjusted according to the electrolysis efficiency. For example, if the electrolysis efficiency is 85%, the actual power demand is 117 kWh / 0.85=137.65 kWh.

[0049] According to the actual power demand of the hydrogen production unit by electrolysis and the scheduled operation time, its average power demand, i.e., the second required power, can be calculated. For example, if the hydrogen production unit by electrolysis needs to run continuously for 8 hours to achieve the target hydrogen production, then the second required power is 137.65 kWh / 8 hours = 17.21 kW.

[0050] The second required power of the electrolytic hydrogen production unit should be dynamically adjusted according to the real-time power supply and electrolysis efficiency during system operation to optimize energy utilization efficiency. For example, when the real-time output power of the photovoltaic array is high, the operating power of the electrolytic hydrogen production unit can be increased to increase hydrogen production; conversely, when the power supply is limited, the operating power needs to be appropriately reduced to ensure that the needs of other key modules are met.

[0051] In the above embodiment, the second required power of the electrolytic hydrogen production unit can be accurately calculated based on the electrolysis efficiency and the target hydrogen production, thereby realizing intelligent management and optimal configuration of electricity, improving the adaptability of the system to renewable energy power generation and the economic efficiency of the water electrolysis hydrogen production process. This process may need to rely on advanced control algorithms and data analysis technologies to ensure the accuracy and real-time performance of power demand prediction and allocation control in a real operating environment.

[0052] In an exemplary embodiment, when the total required power is greater than the real-time output power, determining the priority information of the air water capture unit and the electrolysis hydrogen production unit includes: when the total required power is greater than the real-time output power, determining application information of the air water capture unit and the electrolysis hydrogen production unit; and determining the priority information of the air water capture unit and the electrolysis hydrogen production unit based on the application information of the air water capture unit and the electrolysis hydrogen production unit.

[0053] Among them, the specific demand information for water and hydrogen use at the downstream application end can be determined, including water consumption, hydrogen production, and the urgency and importance of these needs. For example, rural drinking water supply may have a higher priority because it directly affects the quality of life of residents; while industrial hydrogen demand may have a lower priority during non-peak hours because industrial production usually has greater time flexibility.

[0054] If there is an urgent need for water (such as rural drinking water supply), the priority of the air water capture unit will be higher than the electrolysis hydrogen production unit to ensure that the water demand is met first. If the storage or transportation of hydrogen is an important goal, especially during periods of excess electricity that cannot be consumed immediately, the priority of the electrolysis hydrogen production unit may be increased to make full use of the excess electricity to produce hydrogen and store it. In addition, long-term water and hydrogen planning can also be considered, such as predicting water demand and power generation of photovoltaic arrays in the future, and dynamically adjusting the priority.

[0055] In some embodiments, the priority setting may be variable, such as being dynamically adjusted according to the real-time power supply and demand, changes in demand at the downstream application end, and the operating status of the system. For example, if it is predicted that the output power of the photovoltaic array will be much greater than the total power demand in the future, the priority of the electrolytic hydrogen production unit may be increased in advance so that a large amount of hydrogen can be produced and stored when there is excess electricity.

[0056] Once the priority information is determined, the power of the photovoltaic array can be intelligently distributed based on this information. When the total power demand is greater than the real-time output power, the modules with higher priority will be given priority to obtain sufficient power, while the modules with lower priority may temporarily reduce power supply or stop operating until the power supply is restored to a level sufficient to meet their needs.

[0057] In the above embodiment, the priority of the air water capture unit and the electrolytic hydrogen production unit can be flexibly and intelligently adjusted according to the real-time power supply and demand and the water and hydrogen demand of the downstream application end, ensuring that under the condition of limited power, emergency or important needs are met first, while making full use of excess power for hydrogen production, providing a solid guarantee for the stable operation of the system and the efficient use of resources. This mechanism requires a high level of data analysis capabilities and intelligent decision-making support to achieve rapid response and optimized control of complex environments.

[0058] In an exemplary embodiment, the electric energy of the photovoltaic array is allocated based on the priority information to obtain an allocation result, and the air water capture unit and the electrolysis hydrogen production unit are supplied with electricity according to the allocation result, including: based on the priority information, the electric energy of the photovoltaic array is allocated according to a preset electric energy ratio to obtain an allocation result, and the air water capture unit and the electrolysis hydrogen production unit are supplied with electricity according to the allocation result.

[0059] Among them, the priority information is parsed to determine which modules (air water capture unit or electrolysis hydrogen production unit) have a higher priority in the current situation. This is usually based on application information, such as the urgency of water demand, hydrogen production targets, and instructions from downstream applications.

[0060] According to the priority information, an energy distribution ratio can be preset to guide how the energy of the photovoltaic array is distributed between the air water capture unit and the electrolysis hydrogen production unit. For example, if the air water capture unit has a higher priority than the electrolysis hydrogen production unit, the energy distribution ratio may be set to 60:40, that is, 60% of the energy is preferentially distributed to the air water capture unit, and the remaining 40% is distributed to the electrolysis hydrogen production unit.

[0061] After the real-time output power of the photovoltaic array is determined, real-time power distribution is carried out according to the power distribution ratio to ensure that the modules with higher priority can obtain the required power. This distribution process may require power electronic devices such as inverters and energy converters to convert the direct current generated by photovoltaics into alternating current or direct current suitable for different modules, and control the power input of each module according to the distribution ratio.

[0062] The proportion of power allocation should be dynamically adjusted according to the real-time priority information and the operating status of the module. For example, when the water production of the air water capture unit is close to the target demand, its power allocation ratio can be appropriately reduced, and more power can be allocated to the electrolytic hydrogen production unit to increase hydrogen production. In addition, if the energy storage battery has sufficient power, the system can also supplement power through the energy storage battery when the real-time output power of the photovoltaic array is low to maintain the normal operation of the module.

[0063] In the above embodiment, the energy management system can realize the intelligent distribution of the power of the photovoltaic array, which can not only ensure that the modules with higher priority obtain sufficient power supply, but also make efficient use of resources to achieve stable operation of the system and optimal use of resources. This process requires the energy management system to have strong data processing capabilities, real-time monitoring capabilities, and intelligent decision-making and control capabilities to cope with complex and changing operating environments and demand changes. In addition, the development and optimization of power distribution strategies is also a challenge in system design, which requires comprehensive consideration of factors such as efficiency, economy, and safety.

[0064] In order to better understand the process of the control method of the photovoltaic water capture hydrogen production system, the control method of the photovoltaic water capture hydrogen production system is described below in combination with an optional embodiment, but it is not used to limit the technical solution of the embodiment of the present application.

[0065] The control method of the photovoltaic water capture hydrogen production system of the present application is based on the photovoltaic water capture hydrogen production system, refer to Figure 3 As shown, the photovoltaic water capture and hydrogen production system includes an electronic device, namely a computer device (not shown in the figure), a photovoltaic array, air water capture (i.e., air water capture unit), electrolysis hydrogen production (i.e., electrolysis hydrogen production unit), hydrogen power generation, water purification and storage, other water use, and hydrogen energy storage and transportation.

[0066] pass Figure 3 The system shown realizes the coupling of air water capture and water electrolysis, wherein the excess electricity generated by the air water capture unit is used to electrolyze water to produce hydrogen, and the hydrogen can be stored in a high-pressure tank or converted into a solid hydrogen storage material for subsequent use. The amount of air water capture determines the power of the module, which mainly depends on the downstream water demand; if electrolysis is required to produce hydrogen, each standard cubic meter of hydrogen corresponds to about 0.8037 kg of pure water, and the amount of air water capture should not be less than this value.

[0067] At the same time, the output power of the photovoltaic panels is monitored and controlled in real time, and the voltage and current of the photovoltaic equipment can be monitored through special equipment. If the photovoltaic power generation is less than the amount of electricity required for downstream consumption, the photovoltaic power generation can be fully utilized by adjusting the electrolysis power; if the photovoltaic power generation far exceeds the amount of electricity that can be consumed by the downstream, the excess power will be abandoned while meeting the downstream electricity demand.

[0068] Power is intelligently distributed according to the demand for water capture and hydrogen production, and according to the amount of photovoltaic power generation, the amount of electricity required for water capture, and the amount of electricity required for electrolysis, and automatically adjusted according to the instructions of the downstream application end. At the same time, it is equipped with energy storage batteries to cope with the imbalance of power supply and demand. Energy storage batteries are mainly used to provide electricity when photovoltaics cannot generate electricity or suddenly lose power. On the one hand, it provides necessary electricity when photovoltaics cannot generate electricity, and on the other hand, it serves as a security power source to supply power to necessary loads during power outages. The specific scale of energy storage can be determined according to demand. Furthermore, this system adopts a modular design and can be flexibly expanded according to different scenarios and needs, such as providing drinking water in rural areas and hydrogen fuel in industrial areas.

[0069] In general, the downstream demand for water and hydrogen determines the amount of water and electricity required for upstream electrolysis of hydrogen, which further determines the power required by the air water capture module. If the power generated by the photovoltaic module is lower than the required power, it will be allocated according to the priority and proportion of water and hydrogen. This solves the problem of low cost of new energy power generation and high cost of water shortage in Shagohuang and other arid areas, improves the water resource utilization rate and photovoltaic utilization rate in arid areas such as Shagohuang, and realizes the conversion and transportation of new energy power generation in the form of hydrogen.

[0070] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0071] The present application also provides a structural block diagram of a control device for a photovoltaic water capture hydrogen production system. Figure 4 is a structural block diagram of a control device for a photovoltaic water capture hydrogen production system according to an embodiment of the present application; Figure 4 As shown, including:

[0072] An acquisition module 42 is used to acquire the real-time output power of the photovoltaic array;

[0073] A determination module 44 is used to determine a first required power of the air water capture unit, and to determine a second required power of the electrolytic hydrogen production unit, and to determine a total required power based on the first required power and the second required power;

[0074] The determination module 44 is further configured to determine the priority information of the air water capture unit and the electrolysis hydrogen production unit when the total required power is greater than the real-time output power;

[0075] The allocation module 46 is used to allocate the electric energy of the photovoltaic array based on the priority information, obtain the allocation result, and supply electricity to the air water capture unit and the electrolytic hydrogen production unit according to the allocation result.

[0076] Through the above device, the output power of the photovoltaic array is monitored in real time, and the total power demand of the air water capture unit and the electrolytic hydrogen production unit is determined, so that the current power demand can be clearly understood, providing a basis for power distribution and ensuring the balance of power supply and demand. When the total power demand is greater than the real-time output power, by determining the priority information, the module operation status can be intelligently adjusted to give priority to the operation requirements of key modules, thereby enhancing the flexibility and adaptability of the photovoltaic water capture hydrogen production system and realizing the rational use of the photovoltaic water capture hydrogen production system.

[0077] In an exemplary embodiment, the acquisition module 42 is also used to acquire real-time power parameters of the photovoltaic array; the real-time power parameters include real-time current and real-time voltage of the photovoltaic array; based on the real-time current and real-time voltage, the real-time output power of the photovoltaic array is determined.

[0078] In an exemplary embodiment, the determination module 44 is also used to determine the target water replenishment amount of the air water capture unit and the environmental parameters when the air water capture unit is running, and the environmental parameters include air temperature, humidity and atmospheric pressure; based on the target water replenishment amount and the environmental parameters, the first required power of the air water capture unit is determined.

[0079] In an exemplary embodiment, the determination module 44 is further used to determine the electrolysis efficiency and the target hydrogen production of the electrolysis hydrogen production unit; and determine the second required power of the electrolysis hydrogen production unit according to the electrolysis efficiency and the target hydrogen production.

[0080] In an exemplary embodiment, the determination module 44 is also used to determine the application information of the air water capture unit and the electrolysis hydrogen production unit when the total required power is greater than the real-time output power; and determine the priority information of the air water capture unit and the electrolysis hydrogen production unit based on the application information of the air water capture unit and the electrolysis hydrogen production unit.

[0081] In an exemplary embodiment, the allocation module 46 is also used to allocate the electric energy of the photovoltaic array according to a preset electric energy ratio based on the priority information, obtain the allocation result, and supply electricity to the air water capture unit and the electrolysis hydrogen production unit according to the allocation result.

[0082] An embodiment of the present application further provides a storage medium, which includes a stored program, wherein the program executes any of the above methods when it is run.

[0083] Optionally, in this embodiment, the storage medium may be configured to store program codes for executing the following steps:

[0084] S1, obtaining the real-time output power of the photovoltaic array;

[0085] S2, determining a first power requirement of the air water capture unit, and determining a second power requirement of the electrolytic hydrogen production unit, and determining a total power requirement based on the first power requirement and the second power requirement;

[0086] S3, when the total required power is greater than the real-time output power, determining the priority information of the air water capture unit and the electrolysis hydrogen production unit;

[0087] S4, allocating the electric energy of the photovoltaic array based on the priority information, obtaining an allocation result, and supplying electric power to the air water capture unit and the electrolytic hydrogen production unit according to the allocation result.

[0088] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0089] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0090] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0091] S1, obtaining the real-time output power of the photovoltaic array;

[0092] S2, determining a first power requirement of the air water capture unit, and determining a second power requirement of the electrolytic hydrogen production unit, and determining a total power requirement based on the first power requirement and the second power requirement;

[0093] S3, when the total required power is greater than the real-time output power, determining the priority information of the air water capture unit and the electrolysis hydrogen production unit;

[0094] S4, allocating the electric energy of the photovoltaic array based on the priority information, obtaining an allocation result, and supplying electric power to the air water capture unit and the electrolytic hydrogen production unit according to the allocation result.

[0095] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.

[0096] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps in any one of the above method embodiments are implemented.

[0097] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0098] An embodiment of the present application also provides a computer program, which includes computer instructions stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the steps in any one of the above method embodiments.

[0099] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0100] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0101] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A control method for a photovoltaic water capture hydrogen production system, wherein the photovoltaic water capture hydrogen production system comprises at least a photovoltaic array, an air water capture unit and an electrolytic hydrogen production unit; characterized in that: include: Obtaining the real-time output power of the photovoltaic array; Determine a first power requirement of the air water capture unit, and determine a second power requirement of the electrolytic hydrogen production unit, and determine a total power requirement based on the first power requirement and the second power requirement; In a case where the total required power is greater than the real-time output power, determining priority information of the air water capture unit and the electrolytic hydrogen production unit; Based on the priority information, the electric energy of the photovoltaic array is distributed to obtain a distribution result, and electric power is supplied to the air water capture unit and the electrolytic hydrogen production unit according to the distribution result.

2. The method according to claim 1, characterized in that The obtaining of the real-time output power of the photovoltaic array comprises: Acquiring real-time power parameters of the photovoltaic array; the real-time power parameters include real-time current and real-time voltage of the photovoltaic array; Based on the real-time current and the real-time voltage, the real-time output power of the photovoltaic array is determined.

3. The method according to claim 1, characterized in that The determining of the first required power of the air water capture unit comprises: Determine the target water replenishment amount of the air water capture unit and the environmental parameters when the air water capture unit is running, wherein the environmental parameters include air temperature, humidity and atmospheric pressure; Based on the target water replenishment amount and the environmental parameters, a first required power of the air water capture unit is determined.

4. The method according to claim 1, characterized in that: The determining of the second required power of the electrolytic hydrogen production unit comprises: Determining the electrolysis efficiency and target hydrogen production of the electrolysis hydrogen production unit; A second required power of the electrolysis hydrogen production unit is determined according to the electrolysis efficiency and the target hydrogen production.

5. The method according to claim 1, characterized in that When the total required power is greater than the real-time output power, determining the priority information of the air water capture unit and the electrolysis hydrogen production unit includes: In a case where the total required power is greater than the real-time output power, determining application information of the air water capture unit and the electrolytic hydrogen production unit; Based on the application information of the air water capture unit and the electrolytic hydrogen production unit, priority information of the air water capture unit and the electrolytic hydrogen production unit is determined.

6. The method according to claim 1, characterized in that The method of allocating electric energy of the photovoltaic array based on the priority information, obtaining an allocation result, and supplying electric power to the air water capture unit and the electrolytic hydrogen production unit according to the allocation result includes: Based on the priority information, the electric energy of the photovoltaic array is distributed according to a preset electric energy ratio to obtain a distribution result, and electric power is supplied to the air water capture unit and the electrolytic hydrogen production unit according to the distribution result.

7. A photovoltaic water capture hydrogen production system, the system comprising an electronic device, a photovoltaic array, an air water capture unit and an electrolytic hydrogen production unit, characterized in that: include: The electronic device is used to obtain the real-time output power of the photovoltaic array; Determine a first power requirement of the air water capture unit, and determine a second power requirement of the electrolytic hydrogen production unit, and determine a total power requirement based on the first power requirement and the second power requirement; when the total power requirement is greater than the real-time output power, determine priority information of the air water capture unit and the electrolytic hydrogen production unit; based on the priority information, allocate the electric energy of the photovoltaic array, obtain an allocation result, and supply power to the air water capture unit and the electrolytic hydrogen production unit according to the allocation result.

8. A control device for a photovoltaic water capture hydrogen production system, characterized in that: include: An acquisition module, used for acquiring the real-time output power of the photovoltaic array; A determination module, used to determine a first required power of the air water capture unit, and determine a second required power of the electrolytic hydrogen production unit, and determine a total required power based on the first required power and the second required power; The determination module is further configured to determine the priority information of the air water capture unit and the electrolysis hydrogen production unit when the total required power is greater than the real-time output power; The allocation module is used to allocate the electric energy of the photovoltaic array based on the priority information, obtain the allocation result, and supply electricity to the air water capture unit and the electrolytic hydrogen production unit according to the allocation result.

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

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

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