Hydrogen production control method and related equipment

Abstract

The invention provides a hydrogen production control method and related equipment, the hydrogen production control method is applied to a hydrogen production system, the hydrogen production system comprises a first valve and a second valve which are used for adjusting the internal pressure, the pressure adjusting speed of the second valve is larger than that of the first valve, and the hydrogen production control method comprises the steps that in the process that the hydrogen production system generates target gas, the target gas is generated; and controlling the hydrogen production rates of the first valve, the second valve and the hydrogen production system to adjust the internal pressure, so that the adjusted internal pressure of the hydrogen production system is within a preset target pressure range of the hydrogen production system. According to the technical scheme, the first valve and the second valve with different pressure adjusting speeds are adopted, and the internal pressure of the hydrogen production system is adjusted by combining the hydrogen production rate, so that the internal pressure of the hydrogen production system can be reasonably adjusted and stabilized to the preset target pressure range, and a better hydrogen production effect is achieved.

Description

Technical Field

[0001] This application relates to the technical field of electrolytic hydrogen production, and particularly relates to a hydrogen production control method and related equipment. Background Art

[0002] Electrolytic hydrogen production is a green and environmentally friendly way to produce hydrogen, which produces hydrogen by electrolyzing water or other electrolyte solutions.

[0003] However, during the electrolytic hydrogen production process, the generation and release of gas will cause fluctuations in the system pressure, which will affect the stable operation of the electrolytic hydrogen production system.

[0004] In related technologies, a proportional valve is usually used and combined with a pressure control method to adjust the internal pressure of the hydrogen production system during hydrogen production. For example, the pressure of hydrogen is controlled by adjusting the opening degree of the proportional valve. However, this pressure control method often fails to effectively maintain the stability of the system pressure when facing large fluctuations in the system pressure or weak anti-interference ability. Summary of the Invention

[0005] Embodiments of this application provide a hydrogen production control method and related equipment, which can effectively maintain the stability of the internal pressure of the hydrogen production system.

[0006] In a first aspect, embodiments of this application provide a hydrogen production control method, which is applied to a hydrogen production system. The hydrogen production system includes a first valve and a second valve for adjusting the internal pressure, and the pressure adjustment speed of the second valve is greater than that of the first valve. The hydrogen production control method includes:

[0007] During the process of the hydrogen production system generating the target gas, control the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure, so that the adjusted internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

[0008] In an embodiment, the controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure includes:

[0009] When the internal pressure of the hydrogen production system meets the first preset pressure condition, control the operating states of the first valve and the second valve to adjust the internal pressure; and

[0010] After adjusting the internal pressure by controlling the operating states of the first valve and the second valve, control the hydrogen production rate of the hydrogen production system to continue to adjust the internal pressure.

[0011] In one embodiment, when the internal pressure of the hydrogen production system satisfies a first preset pressure condition, controlling the operating states of the first valve and the second valve to adjust the internal pressure includes:

[0012] When the internal pressure of the hydrogen production system is greater than a first preset pressure value and less than a second preset pressure value, gradually decrease the opening degree of the second valve until it is closed and control the opening degree of the first valve to reduce the internal pressure until the internal pressure is within the preset target pressure range;

[0013] Wherein, the first preset pressure value is greater than or equal to the maximum boundary value of the preset target pressure range.

[0014] In one embodiment, when the internal pressure of the hydrogen production system satisfies a first preset pressure condition, controlling the operating states of the first valve and the second valve to adjust the internal pressure further includes;

[0015] When the internal pressure of the hydrogen production system is greater than or equal to the second preset pressure value, open the second valve and control the opening degrees of the first valve and the second valve to reduce the internal pressure.

[0016] In one embodiment, after controlling the operating states of the first valve and the second valve to adjust the internal pressure, controlling the hydrogen production rate of the hydrogen production system to continue to adjust the internal pressure includes:

[0017] Judge whether the hydrogen production system satisfies a preset target working state;

[0018] If so, continue to adjust the internal pressure by controlling the hydrogen production rate of the hydrogen production system.

[0019] In one embodiment, the hydrogen production control method further includes:

[0020] Judge whether the hydrogen production system is in the preset target working state according to the duration of the internal pressure within the preset target pressure range; or

[0021] Judge whether the hydrogen production system is in the preset target working state according to the duration of the internal pressure within the preset target pressure range and the hydrogen production rate; or

[0022] When the operating states of the first valve and the second valve satisfy a preset operating state, and the hydrogen production rate reaches a preset target hydrogen production rate, and the duration of the internal pressure within the preset target pressure range reaches a preset duration, it is determined that the hydrogen production system is in the preset target working state.

[0023] In one embodiment, regulating the internal pressure by controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system includes:

[0024] When the internal pressure of the hydrogen production system meets the second preset pressure condition, simultaneously control the operating states of the first valve and the second valve and the hydrogen production rate of the hydrogen production system.

[0025] In one embodiment, regulating the internal pressure by controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system includes:

[0026] When the internal pressure of the hydrogen production system meets the third preset pressure condition, control the hydrogen production rate of the hydrogen production system to regulate the internal pressure; and

[0027] After regulating the internal pressure by controlling the hydrogen production rate of the hydrogen production system, control the operating states of the first valve and the second valve to continue regulating the internal pressure.

[0028] In one embodiment, during the process of the hydrogen production system generating the target gas, regulating the internal pressure by controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system includes:

[0029] When the preset hydrogen production rate of the hydrogen production system changes; or when the target working pressure data of the hydrogen production system changes; or when, after controlling the hydrogen production rate of the hydrogen production system to stabilize the internal pressure, the system parameters reflecting the hydrogen production rate meet the preset parameter condition, control the operating states of the first valve and the second valve to regulate the internal pressure.

[0030] In one embodiment, the hydrogen production control method further includes:

[0031] Controlling the output current of the hydrogen production system based on an adaptive PID control method to control the hydrogen production rate of the hydrogen production system; and / or

[0032] Controlling the opening degrees of the first valve and the second valve based on an adaptive PID control method.

[0033] In a second aspect, an embodiment of the present application provides a hydrogen production system, including:

[0034] A first valve and a second valve for regulating the internal pressure, wherein the pressure regulation speed of the second valve is greater than that of the first valve;

[0035] A control unit, configured to control the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure during the process of the hydrogen production system generating the target gas, so that the adjusted internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system

[0036] In a third aspect, an embodiment of the present application provides an electronic device, which includes:

[0037] One or more processors;

[0038] A memory;

[0039] And one or more applications, where the one or more applications are stored in the memory and configured to be executed by the processor to implement the above method.

[0040] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the above method is implemented.

[0041] Advantages of the embodiments of the present application:

[0042] In the embodiments of the present application, by the first valve and the second valve with different pressure adjustment speeds, and combining the hydrogen production rate to adjust the internal pressure of the hydrogen production system, in different stages of the hydrogen production process, different valve bodies or hydrogen production rates can be controlled separately, or can be combined for control, so as to achieve different amplitude regulation of the internal pressure. Furthermore, in the case of large fluctuations in the system pressure, large-range and small-range adjustments can be combined to quickly reduce the pressure and then stabilize the pressure. In this way, through various pressure adjustment methods, the internal pressure of the hydrogen production system can be reasonably adjusted and stabilized to the preset target pressure range, thereby achieving a better hydrogen production effect. Description of the Drawings

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0044] Figure 1 is a flowchart of the hydrogen production control method provided by an embodiment of the present application Figure 1 ;

[0045] Figure 2 is a flowchart of the hydrogen production control method provided by an embodiment of the present application Figure 2 ;

[0046] Figure 3 is a flowchart of the hydrogen production control method provided by an embodiment of the present application Figure 3 ;

[0047] Figure 4 is a structural block diagram of the hydrogen production system provided by an embodiment of the present application;

[0048] Figure 5 is a structural block diagram of the electronic device provided by an embodiment of the present application. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0050] In the description of the present application, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0051] In the description of the present application, "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0052] In the present application, the term "exemplary" is used to mean "serving as an example, illustration, or description". Any embodiment described as "exemplary" in the present application is not necessarily construed as being more preferred or advantageous than other embodiments. In order for any person skilled in the art to implement and use the present application, the following description is given. In the following description, details are set forth for the purpose of explanation. It should be understood that those skilled in the art can realize that the present application can be implemented without these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in the present application.

[0053] To solve the above problems, an embodiment of the present application provides a hydrogen production control method. Please refer to Figure 1 , Figure 1 which is a flowchart of a hydrogen production control method provided by an embodiment of the present application:

[0054] The hydrogen production control method in the embodiments of the present application is applied to a hydrogen production system. In an optional embodiment, the hydrogen production control method in this embodiment can be applied to an AEM (Anion Exchange Membrane) hydrogen production system.

[0055] The hydrogen production system in the embodiments of the present application includes a first valve and a second valve for regulating the internal pressure, and the pressure regulation speed of the second valve is greater than that of the first valve. It can be understood that the internal pressure of the hydrogen production system can be the internal pressure in its hydrogen production tank, such as directly detected by setting a pressure sensor. In an optional embodiment, the first valve can be a proportional valve, and the second valve can be a pressure relief valve. Different-diameter proportional valves and pressure relief valves can be used to achieve different pressure regulation speeds for regulating the internal pressure of the hydrogen production system between the two. For example, the second valve has a larger diameter than the first valve. Thus, the first valve is mainly used for more precise pressure regulation, and the second valve can quickly discharge fluid in a short time when regulating the pressure to ensure system safety.

[0056] The hydrogen production control method includes:

[0057] Step 100: During the process of the hydrogen production system generating the target gas, control the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to regulate the internal pressure, so that the regulated internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

[0058] In the embodiments of the present application, the process of the hydrogen production system generating the target gas is the hydrogen production working process of the hydrogen production system. It can be understood that when electrolyzing water to produce hydrogen, hydrogen and oxygen are generated. Among them, the target gas can be understood as hydrogen or hydrogen and oxygen, etc.

[0059] The first valve and the second valve can control the gas outflow by controlling the opening degree of the valve body, thereby realizing the change of the internal pressure of the hydrogen production system.

[0060] During the hydrogen production process of the hydrogen production system, hydrogen and oxygen are generated by electrolyzing water. When the internal pressure is relatively stable and the first valve and the second valve do not accelerate the gas discharge while the hydrogen production rate increases, the internal pressure of the hydrogen production system gradually increases, and when the hydrogen production rate decreases, the internal pressure of the hydrogen production system gradually decreases. That is, by controlling the hydrogen production rate of the hydrogen production system, it can be controlled to a certain extent.

[0061] The preset target pressure range is usually the pressure range set to keep the hydrogen production system stable and efficient in hydrogen production, and is set according to actual needs.

[0062] Under normal circumstances, the gas is directly accelerated and discharged by controlling the valve body to quickly adjust and control the internal pressure. Generally, the adjustment of the hydrogen production rate of the hydrogen production system will cause the change speed of the internal pressure to be relatively small. However, in the embodiments of the present application, it is not excluded that in specific scenarios, the internal pressure is greatly adjusted by controlling the hydrogen production rate, and the control valve is used to slightly adjust the internal pressure.

[0063] Therefore, in the hydrogen production control method of the embodiments of the present application, the internal pressure is adjusted by the first valve and the second valve with different pressure adjustment speeds, and in combination with the hydrogen production rate. In this way, at different stages of the hydrogen production process, different valve bodies or hydrogen production rates can be controlled separately, or they can be controlled in combination, so as to achieve different amplitude regulation of the internal pressure. Furthermore, when the pressure fluctuates greatly in the system, large-range and small-range adjustments can be combined to quickly reduce the pressure and then stabilize the pressure. In this way, through a variety of pressure adjustment methods, the internal pressure of the hydrogen production system can be reasonably adjusted and stabilized to the preset target pressure range, thereby achieving a better hydrogen production effect.

[0064] In some embodiments of the present application, the hydrogen production control method further includes:

[0065] Controlling the output current of the hydrogen production system based on an adaptive PID control method to control the hydrogen production rate of the hydrogen production system; and / or

[0066] Controlling the opening degrees of the first valve and the second valve based on an adaptive PID control method.

[0067] In some embodiments of the present application, the hydrogen production control method is further refined as: accurately adjusting the output current of the hydrogen production system through an adaptive PID control method to ensure that the hydrogen production rate reaches the set target level, or to control the internal pressure to a certain extent, thereby optimizing the hydrogen production efficiency. The opening degrees of the first valve and the second valve can also be accurately adjusted through an adaptive PID control method to ensure the stability and safety of each link in the hydrogen production process. Through this multi-level control strategy, the entire hydrogen production system can maintain efficient and stable operation under different operating conditions.

[0068] In some embodiments, an adaptive PID control method is used to control the output current, the opening degrees of the first valve and the second valve. Adaptive PID control is based on traditional PID control and introduces an adaptive mechanism. It can automatically adjust the parameters (proportional coefficient Kp, integral coefficient Ki, derivative coefficient Kd) of the PID controller according to the operating state and process characteristics of the system to adapt to factors such as changes in the system model and external disturbances, so that the system always maintains good control performance.

[0069] Refer toFigure 2 As shown, in some embodiments of the present application, regulating the internal pressure by controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system includes:

[0070] Step 101: When the internal pressure of the hydrogen production system meets the first preset pressure condition, control the operating states of the first valve and the second valve to regulate the internal pressure; and

[0071] Step 102: After regulating the internal pressure by controlling the operating states of the first valve and the second valve, control the hydrogen production rate of the hydrogen production system to continue regulating the internal pressure.

[0072] In the embodiments of the present application, the internal pressure is regulated within a large range by controlling the first valve and the second valve, and the hydrogen production rate of the hydrogen production system is controlled for a small range regulation after the large range regulation. At this time, the main purpose of the small range regulation is to keep the internal pressure of the hydrogen production system within a relatively stable range.

[0073] When the internal pressure of the hydrogen production system meets the first preset pressure condition, it usually means that the internal pressure exceeds a certain pressure value or is within a certain pressure range. At this time, the internal pressure does not meet the working requirements, that is, it is not within the preset target pressure range. Therefore, the first valve and the second valve are combined for rapid adjustment to avoid the situation of untimely regulation when the internal pressure of the system fluctuates greatly, thereby improving the anti-interference ability of the hydrogen production system. After the adjustment, through the control of the hydrogen production rate, a more refined adjustment is realized, so that the internal pressure can be relatively stable within the preset target pressure range, thereby maintaining the pressure stability and ensuring the hydrogen production effect.

[0074] The first preset pressure condition can be set according to actual needs. For example, it can be set as a specific value. When the internal pressure is higher than the value, it means that the internal pressure is high. At this time, the first valve and the second valve are controlled, such as both increasing the opening degree to quickly reduce the pressure. It can also be that when the internal pressure is lower than a value, it means that the internal pressure is low. At this time, the first valve and the second valve are controlled, such as both having a smaller opening degree or closing to achieve pressurization. In addition, the first preset pressure condition can also be a pressure range. For example, when the pressure range is exceeded, the control opening degrees of the first valve and the second valve are larger than those when in this pressure range to achieve different degrees of control adjustment.

[0075] In some embodiments of the present application, the step of when the internal pressure of the hydrogen production system meets the first preset pressure condition, controlling the operating states of the first valve and the second valve to regulate the internal pressure includes:

[0076] When the internal pressure of the hydrogen production system is greater than the first preset pressure value and less than the second preset pressure value, gradually decrease the opening degree of the second valve until it is closed and control the opening degree of the first valve to reduce the internal pressure until the internal pressure is within the preset target pressure range;

[0077] Wherein, the first preset pressure value is greater than or equal to the maximum boundary value of the preset target pressure range.

[0078] It can be understood that the pressure adjustment speed of the second valve is greater, and the fluctuation of the internal pressure is greater when it participates in the adjustment. Therefore, for the range where the internal pressure is greater than the first preset pressure value and less than the second preset pressure value, it usually means that the internal pressure is relatively close to the boundary of the preset target pressure range. Therefore, at this time, gradually decrease the opening degree of the second valve until it is closed, so as to mainly control the further decrease of the internal pressure through the opening degree of the first valve, thereby improving the fineness of the internal pressure adjustment and avoiding the adjustment amplitude from being too large to exceed the minimum boundary value of the preset target pressure range.

[0079] Furthermore, when the internal pressure of the hydrogen production system satisfies the first preset pressure condition, controlling the operating states of the first valve and the second valve to adjust the internal pressure further includes;

[0080] When the internal pressure of the hydrogen production system is greater than or equal to the second preset pressure value, open the second valve and control the opening degrees of the first valve and the second valve to reduce the internal pressure.

[0081] Specifically, for the case where the internal pressure is greater than or equal to the second preset pressure value, that is, a higher internal pressure situation, open the second valve and simultaneously control the opening degrees of the first valve and the second valve to quickly reduce the internal pressure, so that the sensitivity of the pressure adjustment is higher and the adjustment is more rapid.

[0082] In summary, in the embodiments of the present application, the internal pressure regulation speed of the first valve is relatively small, enabling relatively fine regulation. Generally, it is continuously opened for regulation. When the internal pressure of the hydrogen production system fluctuates and increases to a relatively large value, that is, greater than or equal to the second preset pressure value, the second valve in the closed state is started. Thus, by utilizing the rapid pressure reduction ability of the second valve and combining with the first valve for simultaneous regulation, the internal pressure can be rapidly decreased. When the internal pressure drops to between the first preset pressure value and the second preset pressure value, at this time, the internal pressure approaches the preset target pressure range required by the hydrogen production system. Therefore, to prevent over-regulation, the second valve is gradually closed, and the opening degree of the first valve is maintained for control to achieve regulation within a small range, thereby enabling the internal pressure to reach within the preset target pressure range. After being within the preset target pressure range, the hydrogen production rate of the hydrogen production system is controlled to continue to regulate the internal pressure. In this way, through small-range regulation of the hydrogen production rate of the hydrogen production system, the internal pressure can be stably maintained within the preset target pressure range.

[0083] In an alternative embodiment, when the hydrogen production rate is continuously regulated, the first valve can also be synchronously controlled to ensure the stability of the internal pressure.

[0084] In some embodiments of the present application, after controlling the internal pressure by controlling the operating states of the first valve and the second valve, controlling the hydrogen production rate of the hydrogen production system to continue to regulate the internal pressure includes:

[0085] Judging whether the hydrogen production system meets the preset target working state;

[0086] If so, the internal pressure is continuously regulated by controlling the hydrogen production rate of the hydrogen production system.

[0087] Specifically, during the operation of the hydrogen production system, it is first judged whether the preset target working state is reached. This target working state is usually determined based on the requirements of system design and actual operation data, and can include comprehensive considerations of multiple parameters such as internal pressure, hydrogen production rate, and the operating states of the first valve and the second valve.

[0088] If the hydrogen production system determines that the target working state has been reached, it will precisely regulate the hydrogen production rate to maintain or further optimize the internal pressure, ensuring stable system performance under changing operating conditions. In this way, the hydrogen production system can achieve efficient and stable hydrogen production under different working conditions and meet various application requirements.

[0089] In some embodiments of the present application, the hydrogen production control method further includes:

[0090] Judge whether the hydrogen production system is in the preset target working state according to the duration of the internal pressure within the preset target pressure range; or

[0091] Judge whether the hydrogen production system is in the preset target working state according to the duration of the internal pressure within the preset target pressure range and the hydrogen production rate; or

[0092] When the operating states of the first valve and the second valve meet the preset operating state, the hydrogen production rate reaches the preset target hydrogen production rate, and the duration of the internal pressure within the preset target pressure range reaches the preset duration, it is determined that the hydrogen production system is in the preset target working state.

[0093] In an alternative embodiment, when the duration of the internal pressure of the hydrogen production system within the preset target pressure range is long, such as reaching the set preset duration, to a certain extent, it can indicate that the internal pressure meets the actual hydrogen production requirements and remains stable for a long time. Furthermore, it can be preliminarily judged that the hydrogen production system is in a normal working state. Subsequently, the internal pressure can be stabilized mainly by adjusting the hydrogen production rate of the hydrogen production system to ensure the efficient and safe production of hydrogen.

[0094] In another alternative embodiment, in addition to considering the duration of the internal pressure, the actual hydrogen production rate of the current hydrogen production system can also be combined to judge the system state. If the internal pressure remains stable within the target range and the hydrogen production rate reaches the expected level, such as reaching the target hydrogen production load, these two factors together indicate that the system is in the preset target working state. Through this dual-criterion evaluation, the accuracy of the judgment can be improved. Furthermore, when these conditions are met, it can better indicate that the hydrogen production system is in a normal working state. Subsequently, the internal pressure can be stabilized by controlling the hydrogen production rate of the hydrogen production system to ensure the efficient and safe production of hydrogen.

[0095] Specific comparison conditions can be set to judge whether the hydrogen production rate reaches the target hydrogen production load. For example, the hydrogen production rate is controlled according to the current of the hydrogen production system. By detecting the actual current and comparing it with a preset target current, if the actual current is greater than or equal to the preset target current, it indicates that the target hydrogen production load is reached.

[0096] In another embodiment, when a more stringent assessment of the operating state of the system is required, the state of the valves can be checked to assist in the judgment. When the operating states of the first valve and the second valve conform to a preset operating state, which can be set according to the actual situation. For example, when the second valve is opened, it is mainly used for faster pressure relief to achieve large-scale adjustment. The preset operating state can be that the second valve is closed and the first valve is at a preset opening degree, such as a fully open operating state. At the same time, when the hydrogen production rate reaches the preset target hydrogen production rate and the time for the internal pressure to remain within the target range reaches the preset duration, it is possible to more accurately determine that the hydrogen production system is in the preset target working state. This method not only considers the internal pressure and rate of the system but also comprehensively takes into account the operating conditions of the valves, providing a comprehensive evaluation mechanism, and then more accurately judging whether the internal pressure of the hydrogen production system has reached stability, so as to subsequently maintain the internal pressure stability mainly through the hydrogen production rate, further ensuring the efficient and safe production of hydrogen.

[0097] Through these methods, the working state of the hydrogen production system can be effectively monitored and judged, ensuring that the system operates under the best conditions and promptly discovering potential problems for adjustment. This judgment method is applicable to various hydrogen production devices and can improve the stability and efficiency of the system.

[0098] In some embodiments of the present application, the controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure includes:

[0099] When the internal pressure of the hydrogen production system meets the second preset pressure condition, simultaneously control the operating states of the first valve and the second valve and the hydrogen production rate of the hydrogen production system.

[0100] In certain embodiments, when the internal pressure is relatively high, the internal pressure can be quickly adjusted by simultaneously controlling the operation of the first valve and the second valve and combining with the hydrogen production rate of the hydrogen production system. Specifically, the opening degrees of the first valve and the second valve can be further increased, and the hydrogen production rate can be decreased simultaneously to quickly reduce the internal pressure, and then gradually reduce the amplitude of the pressure adjustment at an appropriate time. For example, after adjusting the first valve and the second valve as described above, the hydrogen production rate is controlled to achieve the pressure adjustment through multiple pressure adjustment stages with different adjustment amplitudes, so that the hydrogen production system can reach the actual required pressure range in a more reasonable manner.

[0101] In some embodiments of the present application, the controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure includes:

[0102] When the internal pressure of the hydrogen production system meets the third preset pressure condition, control the hydrogen production rate of the hydrogen production system to adjust the internal pressure; and

[0103] After adjusting the internal pressure by controlling the hydrogen production rate of the hydrogen production system, control the operating states of the first valve and the second valve to continue adjusting the internal pressure.

[0104] In some embodiments, the hydrogen production rate of the hydrogen production system can also be adjusted first and then the first valve and the second valve can be adjusted to achieve the regulation of the internal pressure. For example, when the pressure is low, the hydrogen production rate can be controlled to increase. After pressurization, it is judged whether the first valve and the second valve need to be adjusted. If the pressure still cannot reach the preset target pressure range, the opening degrees of the first valve and the second valve can be further reduced to increase the internal pressure. When the pressure is high, the hydrogen production rate can be controlled to decrease or even stop hydrogen production, and the first valve and the second valve can be combined to quickly reduce the internal pressure of the hydrogen production system.

[0105] In some embodiments of the present application, during the process of the hydrogen production system generating the target gas, controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure includes:

[0106] When the preset hydrogen production rate of the hydrogen production system changes; or when the target working pressure data of the hydrogen production system changes; or when the system parameters reflecting the hydrogen production rate meet the preset parameters after controlling the hydrogen production rate of the hydrogen production system to stabilize the internal pressure, control the operating states of the first valve and the second valve to adjust the internal pressure.

[0107] In the above embodiments, by adjusting the operating states of the first valve and the second valve, the internal pressure of the hydrogen production system can be quickly reduced, that is, the internal pressure of the hydrogen production system can be adjusted within a large range. For controlling the pressure by the hydrogen production rate, it is usually used to adjust the internal pressure of the hydrogen production system within a small range to maintain the stability of the internal pressure. When there are large fluctuations in the internal pressure of the hydrogen production system, the first valve, the second valve, and the adjustment of the hydrogen production rate will be combined to make the internal pressure stable within the preset target pressure range.

[0108] For some other possible scenarios, even if the current internal pressure is relatively stable, it may be necessary to combine the operating states of the first valve and the second valve to quickly adjust the internal pressure to meet the needs of production personnel. For example, in the situation where the internal pressure is maintained stable by controlling the hydrogen production rate of the hydrogen production system, if the preset hydrogen production rate of the hydrogen production system changes, it indicates that the current requirements of production personnel for hydrogen production have changed. At this time, controlling only the hydrogen production rate may not be able to meet the needs of production personnel. Therefore, the control of the first valve and the second valve is combined to quickly adjust the internal pressure, and timely adjustment is carried out by restricting the outflow of hydrogen, quickly increasing the pressure or accelerating the outflow of hydrogen to quickly reduce the pressure.

[0109] When controlling the hydrogen production rate of the hydrogen production system to stabilize the internal pressure, if the system parameters reflecting the hydrogen production rate meet the preset parameters, it indicates to a certain extent that the subsequent hydrogen production rate will change, resulting in the inability to continue stabilizing the internal pressure only through the hydrogen production rate, and there may be a certain internal pressure fluctuation. Therefore, the regulation of the first valve and the second valve is introduced in a timely manner to stabilize the internal pressure.

[0110] Among them, the system parameters reflecting the hydrogen production rate can be the actually measured hydrogen production rate. The situation of meeting the preset parameters can be when it is recognized that the hydrogen production rate has decreased or increased to a certain extent. For example, when setting a preset hydrogen production rate value and recognizing that the hydrogen production rate has decreased or increased to this value, it indicates that the preset parameters are met.

[0111] In some embodiments, the hydrogen production rate is controlled according to the current of the hydrogen production system. The system parameters reflecting the hydrogen production rate can be the actual current of the current hydrogen production system. If the actual current is greater than or equal to the first preset current value, or the actual current is less than or equal to the second preset current value, it indicates that the system parameters meet the preset parameters, so as to achieve more sensitive and accurate recognition for subsequent precise internal pressure regulation.

[0112] Refer to Figure 3As shown in the figure, it is a flowchart of a specific embodiment of the present application. After the hydrogen production system equipment starts up and completes self-checking to power on, the power is turned on and it operates at a set hydrogen production rate, and an adaptive PID control is carried out in combination with a pressure relief valve and a proportional valve for a relatively large range of pressure regulation process to cope with large fluctuations in pressure. This includes when the internal pressure is greater than or equal to the second preset pressure, opening the pressure relief valve and combining with the proportional valve to reduce the internal pressure; when the internal pressure is greater than the first preset pressure and less than the second preset pressure, gradually closing the pressure relief valve and controlling the proportional valve, such as maintaining the opening degree of the proportional valve for pressure reduction control. When the internal pressure is within the preset target pressure range, and the duration reaches the preset time, and the proportional valve reaches 100% opening degree and the duration reaches the preset duration, and the actual current is greater than or equal to the preset target current and other situations where the hydrogen production system meets the preset target working state, lock the opening degree of the proportional valve and exit the pressure relief valve control, and then stabilize the internal pressure within the preset target pressure range by controlling the hydrogen production rate of the hydrogen production system. During the subsequent process of stabilizing the pressure, if operating conditions such as a change in the target working pressure, the actual current being less than or equal to the first preset current, the actual current being greater than or equal to the second preset current, or a change in the preset hydrogen production rate are detected, continue to enable the large-range pressure control method combining the pressure relief valve and the proportional valve to ensure that it can meet the user's needs in a timely manner and prevent large fluctuations in the internal pressure. At this time, exit the process of stabilizing the internal pressure by controlling the hydrogen production rate. Specifically, exit the current adaptive PID regulation, clear the internal integral of the current regulation, and output according to the initial default value, so as to restart the control when the internal pressure regulation needs to be combined with the hydrogen production rate in the subsequent process.

[0113] In the second aspect of the present application, a hydrogen production system is proposed, including:

[0114] A first valve and a second valve for regulating the internal pressure, the pressure regulation speed of the second valve being greater than that of the first valve;

[0115] A control unit for controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to regulate the internal pressure during the process of the hydrogen production system generating the target gas, so that the regulated internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

[0116] Referring to Figure 4 As shown in the figure, in an optional embodiment, the hydrogen production system is an AEM hydrogen production system, Figure 4 which is a structural block diagram of an exemplary hydrogen production system.

[0117] The hydrogen production system specifically includes a power supply 102, an electrolyzer 103, a safety valve 104, a gas-liquid separator 105, a first pressure sensor 106, a proportional valve 107 (first valve), a pressure relief valve 108 (second valve), a buffer tank 109, a second pressure sensor 110, and a gas consumption end 111.

[0118] The power supply 102 supplies power to the electrolyzer 103 for electrolytic hydrogen production. In an optional embodiment, the power supply 102 can also supply power to other devices. The gas after electrolysis in the electrolyzer 103 is introduced into the gas-liquid separator 105 for separation. The first pressure sensor 106 is used to detect the pressure in the gas-liquid separator 105, which can be regarded as the internal pressure of the hydrogen production system in the embodiment of the present application. The hydrogen separated from the gas-liquid separator 105 can be controlled and exported through the proportional valve 107, and after being buffered in the buffer tank 109, it is exported to the gas consumption end 111. Among them, the second pressure sensor 110 detects the hydrogen pressure in the buffer tank 109 to control the hydrogen pressure exported to the gas consumption end 111. An additional pressure relief valve 108 is connected to the gas-liquid separator 105 to enable the regulation of the internal pressure in cooperation with the proportional valve 107.

[0119] The hydrogen production system may further include a control unit 101, and the control unit 101 realizes the steps of the hydrogen production control method described in this embodiment by controlling the operation of the proportional valve 107, the pressure relief valve 108, and the hydrogen production rate.

[0120] In addition to the above introduction for the method, the embodiment of the present application also provides an electronic device, and the electronic device includes:

[0121] One or more processors;

[0122] A memory;

[0123] And one or more application programs, wherein the one or more application programs are stored in the memory and are configured to be executed by the processor to perform the operations of any one of the methods described in any one of the above method embodiments.

[0124] As Figure 5 shown, it shows a schematic structural diagram of the electronic device involved in the embodiment of the present application. Specifically:

[0125] The electronic device may include a processor 201 with one or more processing cores, a storage unit 202 of one or more computer-readable storage media, an input unit 203 and other components. Those skilled in the art can understand that Figure 5 the structural diagram of the electronic device shown in does not constitute a limitation on the electronic device, and it may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0126] Among them:

[0127] The processor 201 is the control center of the electronic device, connecting various parts of the entire electronic device through various interfaces and circuits. By running or executing software programs and / or modules stored in the storage unit 202, and by invoking the data stored in the storage unit 202, it executes various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 201 may include one or more processing cores; preferably, the processor 201 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 201 either.

[0128] The storage unit 202 can be used to store software programs and modules. The processor 201 executes various functional applications and data processing by running the software programs and modules stored in the storage unit 202. The storage unit 202 may mainly include a program storage area and a data storage area. Among them, the program storage area can store the operating system, application programs required for at least one function (such as the sound playback function, image playback function, etc.); the data storage area can store the data created according to the use of the electronic device. In addition, the storage unit 202 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. Correspondingly, the storage unit 202 may also include a memory controller to provide the processor 201 with access to the storage unit 202.

[0129] The electronic device may further include an input unit 203, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0130] Although not shown, the electronic device may also include a display unit, etc., which will not be elaborated here. Specifically, in the embodiment of the present application, the processor 201 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the storage unit 202 according to the following instructions, and the processor 201 will run the application programs stored in the storage unit 202 to achieve various functions as follows:

[0131] During the process of the hydrogen production system generating the target gas, control the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure, so that the adjusted internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

[0132] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by a program or instruction, or by controlling related hardware through a program or instruction. The program or instruction can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0133] An embodiment of the present application provides a computer-readable storage medium, which may include: a read-only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, an optical disc, etc. A computer program or instruction is stored in the computer-readable storage medium. When the computer program or instruction is executed, the above-described method is implemented.

[0134] For example, when the computer program or instruction is loaded by a processor, the following steps may be executed:

[0135] During the process of the hydrogen production system generating the target gas, control the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure, so that the adjusted internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

[0136] According to one aspect of the present application, there is also provided a computer program product, including a computer program or instruction. When the computer program or instruction is executed, the above-described method is implemented.

[0137] The computer program or instruction can be stored in a computer-readable storage medium. The processor of the electronic device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the electronic device executes the methods provided in the various alternative implementation manners in the above embodiments.

[0138] In the above embodiments, the descriptions of the various embodiments have their own focuses. For parts not detailed in a certain embodiment, reference may be made to the detailed descriptions of other embodiments above, and details will not be repeated here.

[0139] In specific implementation, the above-mentioned units or structures can be implemented as independent entities, or can be combined arbitrarily to be implemented as the same or several entities. For the specific implementation of the above-mentioned units or structures, reference may be made to the method embodiments above, and details will not be repeated here.

[0140] For the specific implementation of the above operations, reference may be made to the foregoing embodiments, and details will not be repeated here.

[0141] The above has introduced the embodiments of the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A hydrogen production control method, characterized in that, Applied to a hydrogen production system, the hydrogen production system includes a first valve and a second valve for regulating the internal pressure, and the pressure regulation speed of the second valve is greater than that of the first valve. The hydrogen production control method includes: During the process of the hydrogen production system generating the target gas, controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to regulate the internal pressure so that the adjusted internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

2. The hydrogen production control method according to claim 1, characterized in that The controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to regulate the internal pressure includes: When the internal pressure of the hydrogen production system meets the first preset pressure condition, controlling the operating states of the first valve and the second valve to regulate the internal pressure; and After controlling the operating states of the first valve and the second valve to regulate the internal pressure, controlling the hydrogen production rate of the hydrogen production system to continue to regulate the internal pressure.

3. The hydrogen production control method according to claim 2, characterized in that, The when the internal pressure of the hydrogen production system meets the first preset pressure condition, controlling the operating states of the first valve and the second valve to regulate the internal pressure includes: When the internal pressure of the hydrogen production system is greater than the first preset pressure value and less than the second preset pressure value, gradually reducing the opening degree of the second valve until it is closed and controlling the opening degree of the first valve to reduce the internal pressure until the internal pressure is within the preset target pressure range; Wherein, the first preset pressure value is greater than or equal to the maximum boundary value of the preset target pressure range.

4. The hydrogen production control method according to claim 3, characterized in that, The when the internal pressure of the hydrogen production system meets the first preset pressure condition, controlling the operating states of the first valve and the second valve to regulate the internal pressure further includes; When the internal pressure of the hydrogen production system is greater than or equal to the second preset pressure value, opening the second valve and controlling the opening degrees of the first valve and the second valve to reduce the internal pressure.

5. The hydrogen production control method according to any one of claims 2-4, characterized in that The after controlling the operating states of the first valve and the second valve to regulate the internal pressure, controlling the hydrogen production rate of the hydrogen production system to continue to regulate the internal pressure includes: Judging whether the hydrogen production system meets the preset target working state; If so, controlling the hydrogen production rate of the hydrogen production system to continue to regulate the internal pressure.

6. The hydrogen production control method according to claim 5, wherein It further includes: Judging whether the hydrogen production system is in the preset target working state according to the duration of the internal pressure within the preset target pressure range; Or Judging whether the hydrogen production system is in the preset target working state according to the duration of the internal pressure within the preset target pressure range and the hydrogen production rate; Or When the operating states of the first valve and the second valve meet the preset operating state, the hydrogen production rate reaches the preset target hydrogen production rate, and the duration of the internal pressure within the preset target pressure range reaches the preset duration, it is determined that the hydrogen production system is in the preset target working state.

7. The hydrogen production control method according to any one of claims 1-4, characterized in that The controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to regulate the internal pressure includes: When the internal pressure of the hydrogen production system satisfies the second preset pressure condition, simultaneously control the operating states of the first valve and the second valve and the hydrogen production rate of the hydrogen production system.

8. The hydrogen production control method according to any one of claims 1-4, characterized in that, The controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure includes: When the internal pressure of the hydrogen production system satisfies the third preset pressure condition, control the hydrogen production rate of the hydrogen production system to adjust the internal pressure; and After adjusting the internal pressure by controlling the hydrogen production rate of the hydrogen production system, control the operating states of the first valve and the second valve to continue adjusting the internal pressure.

9. The hydrogen production control method according to any one of claims 1-4, characterized in that During the process of the hydrogen production system generating the target gas, the controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure includes: When the preset hydrogen production rate of the hydrogen production system changes; or when the target working pressure data of the hydrogen production system changes; or when the system parameters reflecting the hydrogen production rate conform to the preset parameter condition after controlling the hydrogen production rate of the hydrogen production system to stabilize the internal pressure, control the operating states of the first valve and the second valve to adjust the internal pressure.

10. The hydrogen production control method according to any one of claims 1-4, characterized in that, It further includes: Controlling the output current of the hydrogen production system based on an adaptive PID control method to control the hydrogen production rate of the hydrogen production system; and / or Controlling the opening degrees of the first valve and the second valve based on an adaptive PID control method.

11. A hydrogen production system, characterized in that, It includes: A first valve and a second valve for adjusting the internal pressure, and the pressure adjustment speed of the second valve is greater than that of the first valve; A control unit for controlling the first valve, the second valve, and the hydrogen production rate of the hydrogen production system to adjust the internal pressure during the process of the hydrogen production system generating the target gas, so that the adjusted internal pressure of the hydrogen production system is within the preset target pressure range of the hydrogen production system.

12. An electronic device, characterized in that, The electronic device includes: One or more processors; A memory; And one or more applications, where the one or more applications are stored in the memory and are configured to be executed by the processor to implement the method according to any one of claims 1 to 11.

13. A computer-readable storage medium, characterized in that, A computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed, the method according to any one of claims 1 - 11 is implemented.

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