Hydrogen production control method and device for electrolytic cell and electronic equipment

Abstract

The invention discloses an electrolytic bath hydrogen production control method and device and electronic equipment. The method comprises the following steps: acquiring system data of a predetermined hydrogen energy system; under the condition that the hydrogen energy capacity in the hydrogen storage equipment is smaller than the preset capacity, whether a primary control result connected to the electric energy system is controlled or not is determined according to the comparison result of the wind energy power and the predicted use power; according to the primary control result, target energy supply power is determined; under the condition that the target energy supply power is greater than or equal to the predicted service power, determining the ratio of the predicted service power to the starting power of the electrolytic cell; according to the proportion, determining electrolytic cell control data; and sending a control instruction to the target electrolytic cell to control the target electrolytic cell to produce hydrogen. The technical problem of frequent start and stop during hydrogen production of the electrolytic cell is solved.

Description

Technical Field

[0001] The present invention relates to the field of data processing, and in particular to a method, device and electronic equipment for controlling hydrogen production in an electrolyzer. Background Art

[0002] In the related art, when hydrogen is produced in an electrolyzer, the output voltage of the fan can ensure the normal operation of the entire device to a certain extent. Due to the volatility of wind energy, the power supply of the fan is in an unstable state, which leads to the technical problem of frequent starting and stopping when hydrogen is produced in the electrolyzer due to the influence of the volatility of wind energy.

[0003] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0004] The embodiments of the present invention provide a method, device and electronic equipment for controlling hydrogen production in an electrolyzer, so as to at least solve the technical problem of frequent starting and stopping when producing hydrogen in an electrolyzer.

[0005] According to one aspect of the present invention, a method for controlling hydrogen production in an electrolyzer is provided, comprising: acquiring system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and a plurality of electrolyzers, the predetermined hydrogen energy system being a system connected to a wind power system and controlled by an electric power system, the system data including wind power output and predicted power usage, wherein the wind power output is the power provided by the wind power system, and the predicted power usage is the power predicted to be allocated to the plurality of electrolyzers; and, when the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity, controlling hydrogen production in an electrolyzer based on the wind power output and the predicted power usage. The comparison results determine whether to control the connection to the power system; based on the primary control results, the target power supply is determined, wherein the target power supply includes wind power; if the target power supply is greater than or equal to the predicted power consumption, the ratio of the predicted power consumption to the electrolyzer startup power is determined; based on the ratio, the electrolyzer control data is determined, wherein the electrolyzer control data includes the number of electrolyzers started; a control command is sent to the target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control command carries the electrolyzer control data.

[0006] Optionally, determining a primary control result for whether to control access to the power system based on the comparison result of the wind power and the predicted power usage includes: if the comparison result shows that the wind power is less than the predicted power usage, determining the primary control result to control access to the power system and sending a control command to control the predetermined hydrogen energy system to access the power system; and / or, if the comparison result shows that the wind power is greater than or equal to the predicted power usage, determining the primary control result to not control access to the power system.

[0007] Optionally, determining the electrolytic cell control data based on the ratio includes: determining whether the ratio is a determination result with a fraction; and determining the electrolytic cell control data based on the determination result.

[0008] Optionally, determining the electrolyzer control data based on the ratio includes: when the determined result is that the ratio is a mixed number, determining the integer part of the mixed number and the fractional part of the mixed number; when the integer part is greater than zero and less than the total number of electrolyzers, determining the initial number of power supply units based on the integer part and determining the remaining power supply capacity based on the fractional part; when the primary control result is not to control access to the power system, performing secondary control and sending a secondary control command to control the predetermined hydrogen energy system to access the power system; when the predetermined hydrogen energy system is accessed to the power system, determining the supplementary power, wherein the supplementary power includes: electrical power, the electrical power being the power provided by the power system; determining the number of additional power supply units based on the supplementary power and the remaining power supply capacity; and determining the electrolyzer control data based on the initial number of power supply units and the number of additional power supply units.

[0009] Optionally, if the determined result is that the ratio is a mixed number, after determining the integer part of the mixed number and the fractional part of the mixed number, the method further includes: if the integer part is equal to zero, storing the wind power to the energy storage system.

[0010] Optionally, when the determined result is that the ratio is a mixed number, after determining the integer part of the mixed number and the fractional part of the mixed number, the method further includes: when the integer part is equal to the total number of electrolytic cells, determining the target number of energy supply cells based on the integer part, and determining the storable power based on the fractional part; determining the electrolytic cell control data based on the target number of energy supply cells, and storing the storable power to the energy storage system.

[0011] Optionally, determining the target power supply based on the primary control result includes: if the primary control result is to control access to the power system, determining the target power supply includes: electrical power and the wind power; and / or, if the primary control result is not to control access to the power system, determining the target power supply is the wind power.

[0012] According to one aspect of the present invention, an electrolyzer hydrogen production control device is provided, comprising: an acquisition module, configured to acquire system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and a plurality of electrolyzers, the predetermined hydrogen energy system being a system connected to a wind power system and controlled by an electric power system, the system data including wind power and predicted power usage, the wind power being the power provided by the wind power system, and the predicted power usage being the power predicted to be allocated to the plurality of electrolyzers; and a first determination module, configured to determine, based on a comparison result of the wind power and the predicted power usage, if the hydrogen capacity in the hydrogen storage device is less than a predetermined capacity, that... The system comprises: a first control module for controlling access to the power system; a second determining module for determining a target power supply based on the first control result, wherein the target power supply includes wind power; a third determining module for determining the ratio of the predicted power supply to the electrolyzer startup power when the target power supply is greater than or equal to the predicted power consumption; a fourth determining module for determining electrolyzer control data based on the ratio, wherein the electrolyzer control data includes the number of electrolyzers started; and a sending module for sending control commands to the target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control commands carry the electrolyzer control data.

[0013] According to one aspect of the present invention, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the electrolyzer hydrogen production control method described in any of the preceding claims.

[0014] According to one aspect of the present invention, a computer-readable storage medium is provided, wherein when the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform the electrolyzer hydrogen production control method described in any of the preceding claims.

[0015] In this embodiment of the invention, system data of a predetermined hydrogen energy system is acquired. The predetermined hydrogen energy system includes a hydrogen storage device and multiple electrolyzers. The predetermined hydrogen energy system is connected to a wind power system and controlled by an electric power system. The system data includes wind power output and predicted usage power. The wind power output is the power provided by the wind power system, and the predicted usage power is the predicted usage power of the multiple electrolyzers. If the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity, a primary control result is determined based on the comparison between the wind power output and the predicted usage power to determine whether to control the connection to the electric power system. Based on the primary control result, a target power supply is determined, where the target power supply includes the wind power output. If the target power supply is greater than or equal to the predicted usage power, the ratio of the predicted usage power to the electrolyzer startup power is determined. Based on the ratio, electrolyzer control data is determined, where the electrolyzer control data includes the number of electrolyzers started. A control command is sent to the target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control command carries the electrolyzer control data. In this embodiment, by acquiring the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers, the output power of the wind energy system can be monitored, and the power demand of multiple electrolyzers can be predicted in advance. When the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity, a control result is determined based on the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers. This determines whether it is necessary to control the connection to the power system, enabling flexible responses to fluctuations in wind power and changes in the power demand of the electrolyzers. This ensures that even when wind power supply is insufficient, the power system can be effectively connected through control. When the target power supply can meet the predicted power usage allocated to multiple electrolyzers, the electrolyzer control data is determined based on the ratio of predicted power usage to electrolyzer startup power. This allows for a more accurate determination of the number of electrolyzers that need to be started, ensuring that hydrogen production reaches the predetermined target while reducing energy waste caused by too many or too few operating electrolyzers. By sending control commands carrying electrolyzer control data to the target electrolyzer, the predetermined target for hydrogen production is accurately matched with the required energy consumption. This effectively avoids the target electrolyzer operating under suboptimal conditions due to insufficient power supply, thus solving the technical problem of frequent start-ups and shutdowns during hydrogen production in electrolyzers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a flowchart of an electrolyzer hydrogen production control method according to an embodiment of the present invention;

[0018] Figure 2 This is a flowchart of the start-up and shutdown control method for wind power-based off-grid hydrogen production in an optional embodiment of the present invention.

[0019] Figure 3 This is an example diagram of the start-up and shutdown control method for wind power-based off-grid hydrogen production in an optional embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of an electrolyzer unit for wind power-based off-grid hydrogen production in an optional embodiment of the present invention.

[0021] Figure 5 This is a structural block diagram of an electrolyzer hydrogen production control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention 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 numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention 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 clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] Example 1

[0025] According to an embodiment of the present invention, an embodiment of a hydrogen production control method for an electrolyzer is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0026] Figure 1 This is a flowchart of an electrolyzer hydrogen production control method according to an embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0027] S102, obtaining system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and multiple electrolyzers, and the predetermined hydrogen energy system is a system connected to a wind energy system and controlled by an electric energy system. The system data includes wind energy power and predicted power usage, wherein the wind energy power is the power provided by the wind energy system, and the predicted power usage is the power predicted to be allocated to the multiple electrolyzers;

[0028] In step S102 of this application, system data of the predetermined hydrogen energy system is obtained.

[0029] This involves a predetermined hydrogen energy system, which is a system for hydrogen production and storage that is pre-determined, with wind power system access and electric power system control access.

[0030] This includes system data, which is data collected during the operation of the predetermined hydrogen energy system to reflect its performance.

[0031] This includes hydrogen storage equipment, which is used to store hydrogen gas.

[0032] This involves electrolyzers, which are electrolytic devices used to produce hydrogen by electrolyzing water. Large-scale hydrogen production generally requires the installation of multiple electrolyzers to increase hydrogen production and enhance the flexibility of the hydrogen energy system. For example, a hydrogen production system with 10 electrolyzers can adjust the number of electrolyzers in operation based on power supply conditions.

[0033] This involves a wind power system that generates electricity using wind power and is connected to a predetermined hydrogen energy system. The output power of this wind power system will fluctuate as the wind force changes.

[0034] This involves an electric energy system that, when it determines that the wind energy power provided by the wind energy system is less than the predicted power usage, needs to be controlled to connect to a predetermined hydrogen energy system. For example, when the wind energy power provided by the wind energy system is less than the predicted power usage, the electric energy system is controlled to connect to the predetermined hydrogen energy system; when the wind energy power provided by the wind energy system is greater than the predicted power usage, the electric energy system is controlled not to connect to the predetermined hydrogen energy system.

[0035] This involves wind power, which is the electrical power output of a wind power system, and is usually affected by factors such as wind speed and wind direction.

[0036] This involves the predicted power usage, which is a forecast of power usage at a future point in time and is used to allocate power to multiple electrolytic cells.

[0037] By acquiring the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers, the output power of the wind energy system can be monitored, and the power demand of multiple electrolyzers can be predicted in advance. This provides a data basis for whether adjustments need to be made in advance, which helps to avoid frequent start-ups and shutdowns of electrolyzers and reduce the overall instability of the planned hydrogen energy system due to wind energy fluctuations.

[0038] It should be noted that there are no specific restrictions on the method for obtaining system data of the predetermined hydrogen energy system, and the settings can be customized according to the actual application and scenario.

[0039] S104, when the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity, the primary control result of whether to control the connection to the power system is determined based on the comparison result of wind power and predicted power usage.

[0040] In step S104 of this application, a control result is determined as to whether to control the connection to the power system.

[0041] This includes hydrogen energy capacity, which is the amount of hydrogen stored in the hydrogen storage device under the current conditions.

[0042] This involves a predetermined capacity, which is the amount of hydrogen that needs to be stored based on hydrogen consumption. For example, the predetermined capacity of the hydrogen storage device can be set to 30 liters of hydrogen to ensure the hydrogen supply for the next day.

[0043] This involves a primary control result, determined based on a comparison between wind power and predicted power usage when the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity. This result is used to determine whether it is necessary to connect to the power grid. For example, if the current wind power is less than the predicted power usage, the primary control result will determine to connect to the power grid to supplement the required electrical energy.

[0044] By determining the control result—that is, when the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity—and comparing the wind power provided by the wind power system with the predicted power usage allocated to multiple electrolyzers, it is determined whether it is necessary to control the connection to the power system. This enables flexible response to the fluctuations in wind power and changes in the power demand of the electrolyzers. It ensures that even when the wind power supply is insufficient, the stable operation of the predetermined hydrogen energy system can be achieved by controlling the effective connection of the power system, thereby effectively solving the technical problem of frequent start-ups and shutdowns in hydrogen production from electrolyzers.

[0045] In practice, the decision-making process for a single control outcome can also comprehensively consider factors such as the operating efficiency of the electrolyzer and the price of electricity in the power system to achieve optimal benefits. For example, when it is predicted that wind power supply will increase in the next few hours and electricity prices will be high, the system may choose not to connect to the power system temporarily, but instead use the current wind power for hydrogen production or store excess electricity to release when wind power supply becomes insufficient. This makes full use of wind power and avoids using the power system during periods of high electricity prices.

[0046] It should be noted that there are no specific restrictions on the method for determining whether to control the primary control result of the power system; the settings can be customized according to the actual application and scenario.

[0047] S106, Based on the primary control results, determine the target power supply, which includes wind power;

[0048] In step S106 provided in this application, the target power supply is determined.

[0049] This involves a target power supply, which is determined based on the results of a primary control operation and is used to meet the predicted power usage. For example, when the wind power equals the predicted power usage, the primary control result is to control the system not to connect to the power grid, and the corresponding target power supply is the wind power. When the wind power is less than the predicted power usage, the primary control result is to control the system to connect to the power grid, and the corresponding target power supply is the wind power plus the electrical power provided by the power grid.

[0050] When the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity, the target power supply is determined based on the primary control result, enabling flexible adjustment of the target functional power source. When the wind power is equal to or greater than the predicted power usage, the primary control result is to control the disconnection from the power system. In this case, the wind power provided by the wind system is sufficient to meet the power allocation for multiple electrolyzers. Therefore, the target power supply is the wind power, preventing frequent start-ups and shutdowns during hydrogen production in the electrolyzers. When the wind power is less than the predicted power usage, the primary control result is to control the connection to the power system. In this case, the wind power provided by the wind system is insufficient to meet the power allocation for multiple electrolyzers. To avoid frequent start-ups and shutdowns during hydrogen production in the electrolyzers due to insufficient wind power, the corresponding target power supply is the wind power plus the power provided by the power system. By supplementing the power supply with the power provided by the power system, the power demand of the electrolyzers is ensured to be met. By determining the target energy supply power based on the primary control results, flexible adjustment of the electric power supply source is achieved, ensuring the stability of the electrolyzer energy supply and effectively solving the technical problem of frequent start and stop when producing hydrogen in the electrolyzer.

[0051] In practical applications, the setting and adjustment of the target power supply can also take into account multiple factors such as electricity prices, the operating status and efficiency of the electrolyzer, in order to achieve the best operating effect of the predetermined hydrogen energy system. For example, the predetermined hydrogen energy system can prioritize the use of wind power. When wind power is insufficient, the proportion of electricity connected from the power system can be dynamically adjusted according to the price of electricity, ensuring that the predetermined hydrogen energy system makes efficient use of wind power while achieving cost control.

[0052] It should be noted that there are no specific restrictions on the method for determining the target power supply here, and it can be customized according to the actual application and scenario.

[0053] S108, when the target power supply is greater than or equal to the predicted power usage, determine the ratio of the predicted power usage to the electrolytic cell start-up power;

[0054] In step S108 provided in this application, the ratio of predicted power usage to electrolytic cell start-up power is determined.

[0055] This includes the start-up power of the electrolyzer, which is the electrical energy required for hydrogen production by a single electrolyzer.

[0056] When the target power supply can meet the predicted power usage allocated to multiple electrolyzers, by determining the ratio of the predicted power usage to the electrolyzer startup power, the number of electrolyzers that can be started can be determined more accurately while ensuring that the hydrogen production reaches the predetermined target. This helps in the allocation of electrical energy and avoids waste of electrical energy and unnecessary equipment damage.

[0057] It should be noted that there are no specific restrictions on the method for determining the ratio of predicted power usage to electrolytic cell start-up power; it can be customized according to the actual application and scenario.

[0058] S110, Based on the ratio, determine the electrolytic cell control data, wherein the electrolytic cell control data includes the number of electrolytic cells started;

[0059] In step S110 provided in this application, the electrolytic cell control data is determined.

[0060] This includes electrolytic cell control data, which is determined based on the ratio of predicted power usage to the electrolytic cell startup power, and is used to start the electrolytic cells. Examples include the number of electrolytic cells to start, current adjustment data, and voltage adjustment data.

[0061] By determining the electrolyzer control data based on the ratio of predicted power usage to electrolyzer startup power, the number of electrolyzers that need to be started can be more accurately determined. This ensures that the hydrogen production reaches the predetermined target while reducing energy waste caused by too many or too few electrolyzers in operation. It also avoids unnecessary electrolyzer startups or insufficient startups that would both fail to achieve the predetermined hydrogen production and result in excess energy, thereby reducing hydrogen production costs.

[0062] In practical applications, intelligent control methods can be used to dynamically adjust the operating status and number of electrolyzers based on real-time wind power conditions and electricity prices. For example, when wind power is insufficient and electricity prices are high, the operation of electrolyzers can be reduced, thereby achieving the optimal operating state of the hydrogen energy system.

[0063] It should be noted that there are no specific restrictions on the method for determining the control data of the electrolyzer; it can be customized according to the actual application and scenario.

[0064] S112, sending a control instruction to the target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control instruction carries electrolyzer control data.

[0065] In step S112 provided in the present application, the target electrolyzer is controlled to produce hydrogen by sending a control instruction to the target electrolyzer.

[0066] This involves control commands, which are commands sent to the target electrolytic cell carrying control data and used to control the operating status of the target electrolytic cell.

[0067] Among them, a target electrolyzer is involved, which is determined based on electrolyzer control data in the current state and is an electrolyzer that needs to be started and produces hydrogen.

[0068] By sending control commands carrying electrolyzer control data to the target electrolyzer, accurate control of the target electrolyzer, based on the predicted power consumption and the determined start-up power, can be achieved under the current conditions. Simultaneously, sending these control commands to the target electrolyzer ensures accurate matching between the predetermined hydrogen production target and the required energy consumption, avoiding unnecessary energy consumption and waste, and improving the overall energy efficiency of the hydrogen energy system. Furthermore, the target electrolyzer, activated according to the control commands, can produce hydrogen under the allocated and most suitable power and operating parameters, thereby improving its hydrogen production efficiency, avoiding frequent start-ups and shutdowns due to insufficient power supply, and preventing operation under suboptimal conditions, thus extending the target electrolyzer's lifespan.

[0069] In practical applications, the process of sending control commands can involve multiple levels of control systems, such as wind power forecasting systems, electricity price forecasting systems, and hydrogen energy management systems. These systems transmit control commands to the target electrolyzer via networks or communication interfaces, enabling real-time monitoring and control of the hydrogen production process. For example, a wind power forecasting system might predict future wind energy output in real time based on weather data and historical wind data, and then send the prediction results to the hydrogen energy management system. An electricity price forecasting system might predict electricity prices in real time for the corresponding period to determine whether to connect to the electricity system when wind power is insufficient. The hydrogen energy system, based on the prediction results and the hydrogen storage status of the hydrogen storage equipment, would then determine in real time the number of electrolyzers to be started and their operating parameters, generating control commands to send to the target electrolyzer, instructing it to operate at a specific current and voltage to begin the hydrogen production process. This process enables dynamic coordination between multiple systems, avoiding the technical problem of frequent start-stop cycles during hydrogen production in the electrolyzer, thus contributing to the efficient hydrogen production and low-cost operation of the hydrogen energy system.

[0070] It should be noted that there are no specific restrictions on the method of sending control commands to the target electrolyzer to control the hydrogen production of the target electrolyzer. Custom settings can be made according to the actual application and scenario.

[0071] Through the above steps S102-S112, system data of the predetermined hydrogen energy system is obtained. The predetermined hydrogen energy system includes a hydrogen storage device and multiple electrolyzers. The predetermined hydrogen energy system is connected to a wind power system and controlled by an electrical system. The system data includes wind power and predicted power usage. Wind power is the power provided by the wind power system, and predicted power usage is the predicted power usage of the multiple electrolyzers. If the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity, a primary control result is determined based on the comparison between wind power and predicted power usage to determine whether to control the connection to the electrical system. Based on the primary control result, the target power supply is determined, including wind power. If the target power supply is greater than or equal to the predicted power usage, the ratio of predicted power usage to electrolyzer startup power is determined. Based on the ratio, electrolyzer control data is determined, including the number of electrolyzers started. A control command is sent to the target electrolyzer to control hydrogen production in the target electrolyzer, wherein the control command carries the electrolyzer control data. In this embodiment, by acquiring the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers, the output power of the wind energy system can be monitored, and the power demand of multiple electrolyzers can be predicted in advance. When the hydrogen capacity in the hydrogen storage device is less than the predetermined capacity, a control result is determined based on the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers. This determines whether it is necessary to control the connection to the power system, enabling flexible responses to fluctuations in wind power and changes in the power demand of the electrolyzers. This ensures that even when wind power supply is insufficient, the power system can be effectively connected through control. When the target power supply can meet the predicted power usage allocated to multiple electrolyzers, the electrolyzer control data is determined based on the ratio of predicted power usage to electrolyzer startup power. This allows for a more accurate determination of the number of electrolyzers that need to be started, ensuring that hydrogen production reaches the predetermined target while reducing energy waste caused by too many or too few operating electrolyzers. By sending control commands carrying electrolyzer control data to the target electrolyzer, the predetermined target for hydrogen production is accurately matched with the required energy consumption. This effectively avoids the target electrolyzer operating under suboptimal conditions due to insufficient power supply, thus solving the technical problem of frequent start-ups and shutdowns during hydrogen production in electrolyzers.

[0072] As an optional embodiment, determining whether to control the connection to the power system based on the comparison result of wind power and predicted usage power includes: if the comparison result is that the wind power is less than the predicted usage power, determining the primary control result to control the connection to the power system and sending a primary control command to control the connection of the predetermined hydrogen energy system to the power system; and / or, if the comparison result is that the wind power is greater than or equal to the predicted usage power, determining the primary control result not to control the connection to the power system.

[0073] This embodiment describes the specific steps for determining whether to control the connection to the power system based on the comparison between wind power and predicted power usage.

[0074] This involves a primary control command, which is sent to a predetermined hydrogen energy system to control the predetermined hydrogen energy system to connect to the electric energy system when the result of the primary control is to control the connection to the electric energy system.

[0075] This embodiment describes a control process that dynamically determines whether to connect to the power system to supplement the electrical energy required for hydrogen production, based on a comparison between wind power output and predicted power usage. When the wind power output provided by the wind system is less than the predicted power usage allocated to multiple electrolyzers, the corresponding control result is to connect to the power system and send a control command to the predetermined hydrogen energy system to connect to the power system, thereby enabling subsequent supplementation of the electrical energy required for hydrogen production. When the wind power output provided by the wind system is greater than or equal to the predicted power usage allocated to multiple electrolyzers, and the wind power output is sufficient to meet the current predicted power usage, the corresponding control result is not to connect to the power system; in this case, no additional connection to the power system is required.

[0076] Therefore, by analyzing the wind power provided by the wind power system and comparing it with the predicted power usage allocated to multiple electrolyzers, dynamic control over whether to connect the power system is achieved. On the one hand, this avoids unnecessary power waste and costs caused by connecting the power system when the wind power output of the wind power system can reach the predicted power usage. On the other hand, it ensures that when the wind power output of the wind power system cannot reach the predicted power usage, the power system can provide additional power to make up for the power required for hydrogen production. This helps maintain the stability of the electrolyzer operation, effectively avoids the problem of frequent start-ups and shutdowns during hydrogen production, and thus reduces equipment wear and production interruptions.

[0077] In practice, determining the outcome of a primary control operation can take into account multiple complex factors, such as electricity prices and energy storage status. For example, during periods of wind power surplus and low electricity prices, a pre-planned hydrogen energy system might choose to store excess electricity rather than immediately increasing the number of operating electrolyzers to prepare for wind power shortages, while avoiding purchasing electricity during periods of high electricity prices, thus further optimizing costs and energy utilization. Furthermore, with technological advancements, the decision-making process for primary control outcomes can be further enhanced through machine learning algorithms and artificial intelligence technologies, enabling more accurate wind power forecasting, more flexible electricity dispatching, and more efficient hydrogen production. For instance, by analyzing historical wind power data and hydrogen production demand, a pre-planned hydrogen energy system can predict wind power conditions and electricity demand for a future period, preparing electricity access or storage solutions in advance to cope with potential wind power fluctuations and ensure the continuity and stability of the hydrogen production process.

[0078] As an optional embodiment, determining the electrolytic cell control data based on the ratio includes: determining whether the ratio is a fractional part; and determining the electrolytic cell control data based on the determination result.

[0079] This embodiment describes the specific steps for determining the electrolyzer control data based on the ratio.

[0080] This involves mixed numbers, which are composed of integers and proper fractions, representing the fractional ratio of the predicted power used to the electrolyzer's start-up power.

[0081] This involves determining a result, which is based on the ratio of predicted power usage to the electrolytic cell startup power, and is used to determine the electrolytic cell control data. This result can be a mixed number or a proper fraction, where the integer part of the mixed number represents the number of electrolytic cells that can be started. Since a proper fraction is less than 1, in this scenario, a proper fraction indicates that the number of electrolytic cells that can be started is 0.

[0082] In the steps involved in this embodiment, based on the ratio of predicted power usage to electrolytic cell startup power, it is analyzed whether this ratio is a fractional determination result. If the determination result is not a fractional determination result, i.e., a true fractional determination result, it means that the predicted power usage is insufficient to start any electrolytic cell. If the determination result is a fractional determination result, since a fractional number includes an integer part and a corresponding true fractional part, it means that the predicted power usage can start the number of integer values ​​of the fractional part. Furthermore, based on the determination result, the corresponding electrolytic cell control data can be determined.

[0083] In a planned hydrogen energy system, accurately and rationally determining electrolyzer control data is directly related to whether the planned hydrogen energy system can effectively utilize the functions of the wind energy system or electric energy system to produce hydrogen efficiently and rationally based on the predicted power usage and the corresponding electrolyzer startup power. Based on the ratio of the predicted power usage to the electrolyzer startup power, the analysis of whether the ratio is a fractional determination result is achieved, which enables the accurate determination of the number of electrolyzers to be started. On the one hand, this ensures the maximum utilization of the energy resources provided by the wind energy system or electric energy system, and on the other hand, it ensures that the electrolyzer produces hydrogen under optimal operating conditions, avoiding frequent starts and stops due to insufficient or unstable energy supply, thereby improving the stability of the planned hydrogen energy system operation and the service life of the electrolyzers.

[0084] In practical applications, the control data for electrolyzers can also take into account the wear and tear on the equipment caused by the start-up and shutdown of the electrolyzers. By introducing monitoring of the health status of the electrolyzers, the start-up strategy can be further adjusted based on the current condition and predicted lifespan of the electrolyzers, in order to extend the service life of the electrolyzers and further improve the reliability of the planned hydrogen energy system operation.

[0085] As an optional embodiment, the electrolyzer control data is determined based on the ratio, including: when the determination result is that the ratio is a fraction, determining the integer part of the fraction and the fractional part of the fraction; when the integer part is greater than zero and less than the total number of electrolyzers, determining the initial energy supply number based on the integer part, and determining the remaining energy supply power based on the fractional part; when the primary control result is not controlling the access to the electric energy system, executing secondary control and sending secondary control instructions to control the predetermined hydrogen energy system to access the electric energy system; when the predetermined hydrogen energy system is connected to the electric energy system, determining the supplementary power, wherein the supplementary power includes: electric energy power, which is the power provided by the electric energy system; determining the number of new energy supplies based on the supplementary power and the remaining energy supply power; and determining the electrolyzer control data based on the initial energy supply number and the new energy supply number.

[0086] This embodiment describes the specific steps for determining the electrolytic cell control data when the determined result is a ratio of a mixed number.

[0087] This involves the initial number of power supplies, which is determined based on the integer part of the fractional part, representing the number of electrolytic cells that can be started. For example, when the determined result is... The integer part of the fraction is 4, so the corresponding initial number of power supplies is 4. That is, based on the predicted power consumption for the current period, 4 electrolyzers can be started to produce hydrogen.

[0088] This involves the remaining power supply, which is the power determined based on the fractional part of a mixed number, representing the difference between the predicted power usage and the power required to start the initial number of electrolyzers for hydrogen production. For example, when the determined result is... If the predicted power consumption is 350kW, the starting power of the electrolytic cell is 100kW, and the remaining power supply after starting 3 electrolytic cells (300kW) is 50kW.

[0089] This involves secondary control commands, which are sent by the hydrogen energy system to control the connection to the power system when the primary control result determines that the connection to the power system should not be controlled, but subsequent supplementary power is needed based on the remaining power supply capacity. For example, when the determination result is... If the predicted power consumption is 350kW, the starting power of the electrolyzer is 100kW, and the remaining power supply after starting 3 electrolyzers (300kW) is 50kW, then another 50kW is needed to start one more electrolyzer. At this time, the hydrogen energy system sends a secondary control command to the electrical energy system to control the electrical energy system to connect to the hydrogen energy system and provide an additional 50kW of electrical power through the electrical energy system.

[0090] This involves supplementary power, which is the difference between the power required to start at least one more electrolyzer for hydrogen production after determining the initial number of electrolyzers to start, and the remaining power supply. For example, the electrical power provided by the power system. When the determined result is... If the predicted power consumption is 350kW, the starting power of the electrolyzer is 100kW, and the remaining power supply after starting 3 electrolyzers (300kW) is 50kW, then another 50kW is needed to start one more electrolyzer. At this time, the hydrogen energy system sends a secondary control command to the power system to control the power system to connect to the hydrogen energy system and provide an additional 50kW of supplementary power through the power system.

[0091] This involves electrical power, which is the power provided by the electrical system.

[0092] This involves the number of newly added energy supply cells. This number is determined based on the supplementary power and remaining energy supply power after the initial number of energy supply cells for startup has been determined. It represents the number of electrolytic cells that need to be started again.

[0093] In the steps involved in this embodiment, when the determination result is a fractional number, and when the integer part is greater than zero and less than the total number of electrolyzers, based on the integer part, it can be determined that the initial energy supply number of electrolyzers that can be started to produce hydrogen can be determined by relying solely on the wind energy power output by the wind energy system. After determining the initial energy supply number, the remaining energy supply power is determined based on the fractional part corresponding to the fractional number. When the primary control result determines that the access to the electric energy system is not controlled, but the electric energy needs to be supplemented based on the remaining energy supply power later, the predetermined hydrogen energy system sends a secondary control instruction to control the predetermined hydrogen energy system to access the electric energy system. Based on the remaining functional power and the power required to start at least one electrolyzer for hydrogen production, the supplementary power is determined, and the connected electric energy system is supplemented based on the supplementary power. After determining the electrolyzers to start the initial energy supply number, the additional energy supply number of the electrolyzers that need to be restarted is determined based on the supplementary power and the remaining energy supply power, and then the electrolyzer control data is determined based on the initial energy supply number and the additional energy supply number.

[0094] When the ratio of predicted power usage to electrolyzer startup power is a fractional number, the initial energy supply number corresponding to the integer portion of the fraction is determined, ensuring the stability of hydrogen production for the initial number of electrolyzers activated solely by wind power. When the remaining energy supply corresponding to the fractional portion of the fraction is insufficient to activate an integer number of electrolyzers for hydrogen production solely by wind power, supplemental power is determined and the designated hydrogen energy system sends a secondary control instruction to control the designated hydrogen energy system to connect to the electric energy system to provide supplemental power, thereby supplementing the insufficient wind power and ensuring the stability and continuity of electrolyzer operation. Furthermore, electrolyzer control data is determined based on the initial energy supply number and the additional energy supply number, enabling precise management of the number of electrolyzer startups and corresponding operating data. This maximizes wind power utilization while reducing unnecessary electricity use by obtaining supplemental power from the electric energy system when necessary, avoiding frequent starts and stops caused by wind power fluctuations, and extending the life of the electrolyzers.

[0095] In actual operation, it is also possible to use technologies such as machine learning and big data analysis to predict future wind energy fluctuations and electricity costs by analyzing historical wind speed, electricity price and other data. This allows the operating status of the electrolyzer to be planned in advance to maximize the utilization of wind energy and electricity, avoid frequent start-up and shutdown of the electrolyzer during hydrogen production caused by wind energy fluctuations, and ensure the stability of the predetermined hydrogen energy system, thereby achieving low-cost and high-output hydrogen production.

[0096] As an optional embodiment, after determining the integer part of the mixed number and the fractional part of the mixed number when the result is determined to be a ratio, the method further includes: storing the wind power to the energy storage system when the integer part is equal to zero.

[0097] In this embodiment, specific steps are described for determining the integer part of a mixed number, where the integer part is equal to zero.

[0098] This involves an energy storage system, which is used to store wind power.

[0099] In the steps involved in this embodiment, when the result is determined to be a ratio of predicted power usage to electrolyzer startup power that is a fraction, the integer part of the fraction and the fractional part of the fraction are determined. When the integer part of the fraction is zero, that is, when the result is determined to be a true fraction, it indicates that the predicted power usage can only start 0 electrolyzers to produce hydrogen. In this case, the wind power is stored in the energy storage system.

[0100] When the integer part of a fraction is zero, meaning the determined result is a proper fraction, it indicates that the current predicted power is insufficient to directly start an electrolyzer for hydrogen production. In this case, storing wind power in an energy storage system avoids waste and allows the planned hydrogen energy system to act as a buffer against fluctuations in wind power supply and changes in hydrogen production demand, ensuring stable operation. For example, when wind power is abundant but the required hydrogen production is low, excess wind power can be stored; conversely, when wind power is insufficient but the hydrogen production demand is high, the stored wind power can be released to meet the production needs, thus avoiding waste of wind energy resources, improving the stability and reliability of the planned hydrogen energy system, and ensuring the maximum utilization of hydrogen production energy.

[0101] As an optional embodiment, when the determined result is a mixed number, after determining the integer part of the mixed number and the fractional part of the mixed number, the method further includes: when the integer part is equal to the total number of electrolytic cells, determining the target number of energy supply cells based on the integer part, and determining the storable power based on the fractional part; determining the electrolytic cell control data based on the target number of energy supply cells, and storing the storable power to the energy storage system.

[0102] In this embodiment, specific steps are described when determining the integer part of the mixed-number fraction, and the integer part is equal to the total number of electrolytic cells.

[0103] This involves the target number of energy supply cells, which is the total number of electrolyzers required to start hydrogen production when the integer part of the fraction equals the total number of electrolyzers.

[0104] This involves storable power, which is determined based on the fractional part of the mixed-number data, and is the remaining power after the predicted power usage is used to power the electrolyzers for hydrogen production of the target number of functions.

[0105] In the steps involved in this embodiment, when the result is determined to be a ratio of predicted power usage to electrolyzer start-up power as a fraction, the integer part of the fraction and the fractional part of the fraction are determined. When the integer part is equal to the total number of electrolyzers, the target number of energy supply units, i.e., the total number of electrolyzers, is determined based on the integer part. Then, based on the fractional part of the fraction, the remaining storable power after supplying hydrogen production to the target number of electrolyzers with the predicted power usage is determined. Finally, based on the target number of energy supply units, the electrolyzer control data is determined, and the storable power is stored in the energy storage system.

[0106] When the ratio of predicted power usage to electrolyzer startup power is a fractional part, and the integer part of the fraction equals the total number of electrolyzers, it indicates that the predicted power usage is greater than the power required to start hydrogen production from all electrolyzers. Therefore, by determining the target number of power suppliers based on the integer part, and then determining the electrolyzer control data based on that number, accurate and reasonable allocation of predicted power usage is achieved, ensuring maximum utilization of the predicted power usage from the electrolyzers. Furthermore, by determining the remaining storable power based on the fractional part of the fractional part, this storable power is stored in an energy storage system, avoiding waste of hydrogen production energy (wind power, electricity, etc.) and allowing it to be used as a supplement when wind power resources are insufficient for the next hydrogen production run.

[0107] As an optional embodiment, determining the target power supply based on the result of a primary control includes: if the primary control result is to control access to the power system, determining the target power supply includes: electrical power and wind power; and / or, if the primary control result is not to control access to the power system, determining the target power supply is wind power.

[0108] In this embodiment, the specific steps of determining the target energy supply power according to a primary control result are described.

[0109] In the steps involved in this embodiment, if the control result is to control the connection to the power system, it indicates that the current wind power is less than the predicted power usage, so it is necessary to connect to the power system to make up for the difference between the wind power and the predicted power usage. Thus, the target power supply is determined to include: power supply and wind power. And / or, if the control result is not to control the connection to the power system, it indicates that the current wind power is sufficient to meet the predicted power usage, so it is not necessary to connect to the power system for additional power supply, thus the target power supply is determined to be wind power.

[0110] By determining the target power supply, including both electrical power and wind power, when the control result indicates that the power supply is connected to the power system, this effectively solves the problem of supplementing the difference between wind power and the predicted power demand when wind power is insufficient to meet the predicted power demand. This avoids frequent start-ups and shutdowns of the electrolyzer for hydrogen production caused by wind power fluctuations. Furthermore, by determining the target power supply as wind power when the control result indicates that the predicted power demand can be met solely by wind power, this effectively eliminates the need for supplementary power supply through the power system. This reduces unnecessary electricity consumption while ensuring the stable operation of the planned hydrogen energy system.

[0111] Based on the above embodiments and optional embodiments, an optional implementation method is provided, which is described in detail below.

[0112] In the related art, when hydrogen is produced in an electrolyzer, the output voltage of the fan can ensure the normal operation of the entire device to a certain extent. Due to the volatility of wind energy, the power supply of the fan is in an unstable state, which leads to the technical problem of frequent starting and stopping when hydrogen is produced in the electrolyzer due to the influence of the volatility of wind energy.

[0113] To address the above-mentioned problems, no effective solutions have been proposed so far.

[0114] In view of this, an optional embodiment of the present invention provides an electrolyzer hydrogen production control method and system, which can also be called an electrolyzer start-stop control method and system based on weak off-grid wind power hydrogen production, which can effectively solve the technical problem of frequent start-stop when producing hydrogen in the electrolyzer.

[0115] Figure 2 This is a flowchart of the start-up and shutdown control method for wind power-based off-grid hydrogen production in an optional embodiment of the present invention. Figure 3 This is an example diagram of the start-up and shutdown control method for wind power-based off-grid hydrogen production in an optional embodiment of the present invention. Figure 4 This is a schematic diagram of an electrolyzer unit for wind power-based off-grid hydrogen production in an optional embodiment of the present invention, as shown below. Figure 2 、 Figure 3 as well as Figure 4 As shown, the optional embodiments of this application will be described in detail below.

[0116] S1. Obtaining system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and multiple electrolyzers, and the predetermined hydrogen energy system is a system connected to a wind energy system and controlled by an electric energy system. The system data includes wind energy power and predicted power usage, wherein the wind energy power is the power provided by the wind energy system, and the predicted power usage is the power predicted to be allocated to the multiple electrolyzers;

[0117] For example, suppose the predicted wind power in hydrogen energy system A (which includes: wind power forecasting system, wind power control system, energy storage, rectifier unit, electrolyzer hydrogen production system, hydrogen storage and weak off-grid, etc.) is P. 预 (Same as the predicted power used above), the actual wind power generated is P. 风 (Same as the wind power mentioned above), the starting power of one electrolytic cell is P 启 (Same as the starting power of the electrolytic cells mentioned above), the starting power of all electrolytic cells is mP 启 (m is the total number of electrolyzers), and the power in the energy storage system (same as the energy storage system mentioned above) is P. 储 The power that a weak off-grid system (same as the above-mentioned power system) can provide is P. 电 (Same as the above electrical power). Assume that hydrogen energy system A has n sets of electrolyzers, each set having b electrolyzers, such as... Figure 2 There are a total of b*n (i.e. m) electrolytic cells.

[0118] Obtain the wind power P in hydrogen energy system A. 风 Predicted wind power P 预 Energy storage system power P 储 Weak off-grid power P 电 and the starting power P of the electrolytic cell 启 Total starting power mP 启 System data, etc.

[0119] S2. When the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity, determine whether to control the connection to the power system based on the comparison between wind power and predicted power usage.

[0120] Specifically, S2 also includes:

[0121] S21. If the comparison result shows that the wind power is less than the predicted power consumption, determine the primary control result as controlling the connection to the power system, and send a control command to control the predetermined hydrogen energy system to connect to the power system; and / or,

[0122] S22. If the comparison result shows that the wind power is greater than or equal to the predicted power usage, the primary control result is determined to be no control connection to the power system.

[0123] For example, determining the status of a hydrogen storage tank (same as the hydrogen storage equipment mentioned above).

[0124] When the hydrogen storage tank is full: Do not start any electrolyzers, and maintain the current operating status.

[0125] When the hydrogen storage tank is not full: continue to compare the wind power and the predicted power to determine the comparison result between the wind power and the predicted power usage.

[0126] Comparison results between wind power and predicted power usage:

[0127] P 风 ≥P 预 : Directly enter the electrolytic cell startup quantity determination step without additional compensation.

[0128] P 风 <P 预 Determine the insufficient power P 补 =P 预 -P 风 , provided by the energy storage system P 储 Or the power P provided by weak off-grid 电 Supplement insufficient power P 补 . Specifically including:

[0129] When the P provided by the energy storage system 储 ≥P 补 , energy storage systems are preferred for supplementary energy supply, without the need to connect to weak off-grid;

[0130] When the P provided by the energy storage system 储 <P 补 Determine P 补 With P 储 The difference, and control access to weak off-grid, to provide P 电 Replenish.

[0131] S3. Determine a target energy supply power based on the primary control result, wherein the target energy supply power includes wind energy power;

[0132] Specifically, S3 also includes:

[0133] S31. When the control result is to control access to the power system, the target power supply is determined to include: electrical power, wind power; and / or,

[0134] For example, P 风 ≥P 预 : Directly enter the electrolytic cell startup quantity determination step without additional compensation.

[0135] P 风 <P 预 : Determine the insufficient power P 补 =P 预 -P 风 , provided by the energy storage system P 储 or the power P provided by the weak off-grid 电 Supplement insufficient power P 补 But when the P provided by the energy storage system 储 ≥P 补 , energy storage system is preferred for supplementary energy supply, without the need to connect to weak off-grid, to provide P电 .

[0136] S32. If the control result is that the power supply to the power system is not controlled, the target power supply is determined to be wind power.

[0137] For example, when P 风 <P 预 : Determine the insufficient power P 补 =P 预 -P 风 , provided by the energy storage system P 储 or the power P provided by the weak off-grid 电 Supplement insufficient power P 补 And when the P provided by the energy storage system 储 <P 补 Determine P 补 With P 储 The difference requires controlling access to the weak offline network to provide P. 电 Replenish.

[0138] In the process of determination, if P 风 <P 预 Then the energy storage system provides P 储 or weak off-network provide P 电 Compensation is provided to ensure stable power output from the wind farm during the process and to avoid frequent start-ups and shutdowns of the electrolyzers.

[0139] S4. When the target power supply is greater than or equal to the predicted power usage, determine the ratio of the predicted power usage to the electrolytic cell start-up power.

[0140]

[0141] in, This represents the ratio of predicted power usage to the electrolyzer's start-up power, where 'a' is the integer part of the fraction. The fractional part of a mixed number.

[0142] S5. Based on the ratio, determine the control data of the electrolytic cell, including the number of electrolytic cells to be started;

[0143] Specifically, S5 also includes:

[0144] S51. Determine whether the ratio is a mixed number.

[0145] S52. Based on the determined results, determine the control data for the electrolytic cell.

[0146] Specifically, S52 also includes:

[0147] S521. When the determined result is a mixed fraction in proportion, determine the integer part of the mixed fraction and the fractional part of the mixed fraction;

[0148] For example, when the determined result is a mixed fraction in proportion, that is, when the determined result is :

[0149] Determine the integer part of the mixed fraction: a is the integer part of the mixed fraction;

[0150] Determine the fractional part of the mixed fraction: is the fractional part of the mixed fraction.

[0151] S522. When the integer part is greater than zero and less than the total number of electrolyzers, determine the initial number of energy supplies according to the integer part, and determine the remaining energy supply power according to the fractional part;

[0152] S523. When the primary control result is not to control access to the power system, perform secondary control and send a secondary control instruction to control the access of a predetermined hydrogen energy system to the power system;

[0153] S524. When a predetermined hydrogen energy system accesses the power system, determine the supplementary power, where the supplementary power includes: the electrical power, and the electrical power is the power provided by the power system;

[0154] S525. Determine the new number of energy supplies according to the supplementary power and the remaining energy supply power;

[0155] S526. Determine the electrolyzer control data according to the initial number of energy supplies and the new number of energy supplies.

[0156] After determining the integer part of the mixed fraction and the fractional part of the mixed fraction when the determined result is a mixed fraction in proportion, it further includes:

[0157] S527. When the integer part is equal to zero, store the wind power in the energy storage system.

[0158] S528. When the integer part is equal to the total number of electrolyzers, determine the target number of energy supplies according to the integer part, and determine the storable power according to the fractional part; determine the electrolyzer control data according to the target number of energy supplies, and store the storable power in the energy storage system.

[0159] For example, when 0 < a < m:

[0160] Determine the initial number of energy supplies to be a according to the integer part;

[0161] Determine the remaining energy supply power according to the fractional part

[0162] Then, the A hydrogen energy system sends a secondary control instruction to control the A hydrogen energy system to connect to the weak off-grid (assuming that the energy storage system is not considered at this time) to provide additional power P 补 Supplement and according to P 补 With P 剩 , determine the number of new energy supplies m 新 :

[0163]

[0164] When a=0: store P 风 to the energy storage system;

[0165] When a=m:

[0166]

[0167] Based on the integer part a, the target number of energy supplies is determined to be a, and based on the fractional part Determine the storable power P 存 for:

[0168] S6. Sending a control instruction to the target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control instruction carries electrolyzer control data.

[0169] For example, based on the electrolyzer control data, control instructions are generated to indicate the number of electrolyzers to be started and the operating parameters of each electrolyzer (such as current, voltage, etc.), and the control instructions are sent to the target electrolyzer to ensure that hydrogen production operations are carried out according to the determined power distribution.

[0170] Through the above optional implementation, at least the following beneficial effects can be achieved:

[0171] (1) In the related art, the present invention obtains the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers. When the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity, the present invention determines a control result based on the wind power provided by the wind energy system and the predicted power usage allocated to multiple electrolyzers. This allows for flexible response to the volatility of wind energy and changes in the power demand of the electrolyzers, ensuring that even when the wind power supply is insufficient, effective access to the power system can be achieved through control. When the target energy supply power can meet the predicted power usage allocated to multiple electrolyzers, the electrolyzer control data is determined based on the ratio of the predicted power usage to the electrolyzer startup power, and the number of electrolyzers that need to be started can be more accurately determined, so that the hydrogen production reaches the predetermined target while reducing the waste of electricity caused by too many or too few electrolyzers in operation. By sending control instructions carrying electrolyzer control data to the target electrolyzer, an accurate match between the predetermined target of hydrogen production and the required energy consumption is achieved, effectively avoiding the target electrolyzer from operating under non-optimal conditions due to insufficient power supply, and thus solving the technical problem of frequent start-stop when producing hydrogen in the electrolyzer.

[0172] (2) In the related art, the present invention realizes dynamic control of whether the electric energy system is connected by analyzing the wind energy power provided by the wind energy system and comparing the results with the predicted usage power predicted and allocated by multiple electrolyzers. On the one hand, it avoids the waste of electric energy and electric energy costs caused by unnecessary connection to the electric energy system when the wind energy power output by the wind energy system can reach the predicted usage power. On the other hand, it ensures that when the wind energy power output by the wind energy system cannot reach the predicted usage power, additional electric energy can be provided by the electric energy system to make up for the electric energy required for hydrogen production, which helps to maintain the stability of the electrolyzer operation and effectively avoids the problem of frequent start and stop of the electrolyzer during hydrogen production, thereby reducing equipment loss and production interruption.

[0173] (3) In the related art, the present invention determines the target energy supply power according to the primary control result, thereby realizing flexible adjustment of the target functional power source. When the wind energy power is equal to or greater than the predicted power usage, the primary control result is to control the disconnection from the power system. When the wind energy power is less than the predicted power usage, the primary control result is to control the connection to the power system. This realizes flexible response to the volatility of wind energy and the power demand changes of the electrolyzer, ensuring that even in the case of insufficient wind energy supply, the stable operation of the predetermined hydrogen energy system can be achieved by controlling the effective connection of the power system, thereby effectively solving the technical problem of frequent start and stop when producing hydrogen in the electrolyzer.

[0174] (4) In the related art, the present invention can achieve accurate control of the target electrolyzer in the current state based on the predicted power usage and the electrolyzer startup power by sending a control instruction carrying electrolyzer control data to the target electrolyzer. At the same time, it can achieve an accurate match between the predetermined target of hydrogen production and the required energy consumption, avoid unnecessary power consumption and waste, and improve the energy efficiency of the entire predetermined hydrogen energy system. In addition, the target electrolyzer activated according to the control instruction can produce hydrogen under the allocated and most appropriate power and operating parameters, thereby improving the hydrogen production efficiency of the target electrolyzer, avoiding the frequent start and stop of the target electrolyzer due to insufficient power supply and operation under non-optimal conditions, and extending the service life of the target electrolyzer.

[0175] (5) In the related art, the present invention achieves accurate determination of the number of electrolyzers to be started by analyzing whether the ratio of the predicted power usage to the electrolyzer starting power is a fractional determination result based on the ratio of the predicted power usage to the electrolyzer starting power. On the one hand, it ensures the maximum utilization of the power resources provided by the wind energy system or the power system. On the other hand, it ensures that the electrolyzer produces hydrogen under the optimal working conditions, avoiding frequent starts and stops due to insufficient or unstable energy supply, thereby improving the stability of the predetermined hydrogen energy system operation and the service life of the electrolyzer.

[0176] It should be noted that for the aforementioned method embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0177] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention is essentially 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 enabling a terminal device (which can be a mobile phone, computer, server, or system device, etc.) to execute the methods of various embodiments of the present invention.

[0178] Example 2

[0179] According to an embodiment of the present invention, a device for implementing the above-mentioned electrolyzer hydrogen production control method is also provided. Figure 5FIG. 1 is a structural block diagram of a hydrogen production control device for an electrolyzer according to an embodiment of the present invention. Figure 5 As shown, the apparatus includes: an acquisition module 502, a first determination module 504, a second determination module 506, a third determination module 508, a fourth determination module 510 and a sending module 512. The apparatus will be described in detail below.

[0180] An acquisition module 502 is used to acquire system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and multiple electrolyzers, the predetermined hydrogen energy system is a system connected to a wind energy system, and the electric energy system controls the connected system, and the system data includes wind energy power and predicted power usage, where the wind energy power is the power provided by the wind energy system and the predicted power usage is the power predicted to be allocated to the multiple electrolyzers; a first determination module 504 is connected to the above-mentioned acquisition module 502, and is used to determine whether to control the access to the electric energy system based on the comparison result between the wind energy power and the predicted power usage when the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity; a second determination module 506 is connected to the above-mentioned first determination module 504 , used to determine the target energy supply power based on the primary control result, wherein the target energy supply power includes wind energy power; a third determination module 508, connected to the above-mentioned second determination module 506, used to determine the ratio of the predicted usage power to the electrolyzer startup power when the target energy supply power is greater than or equal to the predicted usage power; a fourth determination module 510, connected to the above-mentioned third determination module 508, used to determine the electrolyzer control data based on the ratio, wherein the electrolyzer control data includes the number of electrolyzer startups; a sending module 512, connected to the above-mentioned fourth determination module 510, used to send a control instruction to the target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control instruction carries the electrolyzer control data.

[0181] It should be noted here that the above-mentioned acquisition module 502, first determination module 504, second determination module 506, third determination module 508, fourth determination module 510 and sending module 512 correspond to steps S102 to S112 in implementing the electrolyzer hydrogen production control method. The examples and application scenarios implemented by multiple modules and corresponding steps are the same, but are not limited to the contents disclosed in the above-mentioned embodiment 1.

[0182] Example 3

[0183] According to another aspect of an embodiment of the present invention, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions, wherein the processor is configured to execute the instructions to implement any of the above-mentioned electrolyzer hydrogen production control methods.

[0184] Example 4

[0185] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided. When the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device can execute any of the above-mentioned electrolyzer hydrogen production control methods.

[0186] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0187] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0188] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical power supply division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0189] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0190] In addition, the energy supply units in various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software energy supply units.

[0191] If the integrated unit is implemented in the form of a software power supply unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or system device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, and other media that can store program codes.

[0192] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for controlling hydrogen production in an electrolyzer, characterized in that: include: Acquire system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and a plurality of electrolyzers, the predetermined hydrogen energy system is a system connected to a wind energy system and controlled by an electric energy system, and the system data includes wind energy power and predicted power usage, the wind energy power is the power provided by the wind energy system, and the predicted power usage is the power predicted to be allocated to the plurality of electrolyzers; When the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity, determining whether to control the primary control result of accessing the electric energy system according to the comparison result between the wind energy power and the predicted power usage; Determining a target energy supply power according to the primary control result, wherein the target energy supply power includes wind energy power; When the target energy supply power is greater than or equal to the predicted usage power, determining a ratio of the predicted usage power to the electrolytic cell startup power; Determining electrolytic cell control data according to the ratio, wherein the electrolytic cell control data includes the number of electrolytic cell startups; A control instruction is sent to a target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control instruction carries the electrolyzer control data.

2. The method according to claim 1, characterized in that The primary control result of determining whether to control access to the electric energy system according to the comparison result between the wind energy power and the predicted power usage includes: When the comparison result is that the wind energy power is less than the predicted usage power, determining the primary control result is to control access to the electric energy system, and sending a primary control instruction to control the predetermined hydrogen energy system to access the electric energy system; and / or, When the comparison result is that the wind energy power is greater than or equal to the predicted usage power, the primary control result is determined as not controlling access to the electric energy system.

3. The method according to claim 1, characterized in that Based on the ratio, the electrolytic cell control data is determined, including: determining whether the ratio is a mixed-number determination result; The electrolytic cell control data is determined according to the determination result.

4. The method according to claim 3, characterized in that Based on the ratio, the electrolytic cell control data is determined, including: When the determination result shows that the ratio is a mixed number, determining an integer part of the mixed number and a fractional part of the mixed number; When the integer part is greater than zero and less than the total number of electrolytic cells, the initial energy supply number is determined according to the integer part, and the remaining energy supply power is determined according to the fractional part; When the primary control result is not to control the access to the electric energy system, performing secondary control and sending a secondary control instruction to control the predetermined hydrogen energy system to access the electric energy system; In the case where the predetermined hydrogen energy system is connected to the electric energy system, a supplementary power is determined, wherein the supplementary power includes: electric energy power, the electric energy power is the power provided by the electric energy system; Determining the number of newly added energy supplies according to the supplementary power and the remaining energy supply power; The electrolytic cell control data is determined based on the initial energy supply number and the newly added energy supply number.

5. The method according to claim 4, characterized in that When the determination result is that the ratio is a mixed number, after determining the integer part of the mixed number and the fractional part of the mixed number, the method further includes: When the integer part is equal to zero, the wind energy power is stored in an energy storage system.

6. The method according to claim 4, characterized in that When the determination result is that the ratio is a mixed number, after determining the integer part of the mixed number and the fractional part of the mixed number, the method further includes: When the integer part is equal to the total number of electrolytic cells, the target energy supply number is determined according to the integer part, and the storable power is determined according to the fractional part; The electrolytic cell control data is determined according to the target energy supply number, and the storable power is stored in the energy storage system.

7. The method according to any one of claims 1 to 6, characterized in that Determining the target energy supply power according to the primary control result includes: In the case where the primary control result is controlling access to the electric energy system, determining the target energy supply power includes: electric energy power, the wind energy power; and / or, When the primary control result is not to control access to the electric energy system, the target energy supply power is determined to be the wind energy power.

8. A control device for hydrogen production in an electrolyzer, characterized in that: include: An acquisition module is used to acquire system data of a predetermined hydrogen energy system, wherein the predetermined hydrogen energy system includes a hydrogen storage device and a plurality of electrolyzers, the predetermined hydrogen energy system is a system connected to a wind energy system and controlled by an electric energy system, and the system data includes wind energy power and predicted power usage, the wind energy power is the power provided by the wind energy system, and the predicted power usage is the power predicted to be allocated to the plurality of electrolyzers; A first determination module is used to determine whether to control the primary control result of accessing the electric energy system according to the comparison result between the wind energy power and the predicted power usage when the hydrogen energy capacity in the hydrogen storage device is less than the predetermined capacity; A second determination module is used to determine a target energy supply power according to the primary control result, wherein the target energy supply power includes wind energy power; A third determination module is used to determine the ratio of the predicted usage power to the electrolytic cell startup power when the target energy supply power is greater than or equal to the predicted usage power; A fourth determination module, configured to determine electrolytic cell control data according to the ratio, wherein the electrolytic cell control data includes the number of electrolytic cell startups; A sending module is used to send a control instruction to a target electrolyzer to control the target electrolyzer to produce hydrogen, wherein the control instruction carries the electrolyzer control data.

9. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the electrolyzer hydrogen production control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: When the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the electrolyzer hydrogen production control method as described in any one of claims 1 to 7.

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