Control method and device of water electrolysis hydrogen production system, electronic equipment and storage medium

Abstract

The invention discloses a control method and device of a water electrolysis hydrogen production system, electronic equipment and a storage medium. The method comprises the steps that the current operation power of the water electrolysis hydrogen production system and the current hydrogen content proportion in oxygen are obtained; comparing the current operation power with a first preset power threshold value and a second preset power threshold value; and adjusting at least one operation parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current ratio of the hydrogen content in the oxygen. In the operation process of the water electrolysis hydrogen production system, the electrolyte circulation flow, pressure and operation power of the water electrolysis hydrogen production system are adjusted based on the comparison result of the current operation power of the water electrolysis hydrogen production system and the preset power maximum value and the preset power minimum value and the current proportion of the hydrogen content in oxygen. When the water electrolysis hydrogen production system operates under wide power, hydrogen in oxygen is maintained in a safe range, so that the water electrolysis hydrogen production system adapts to fluctuation of wind-solar coupled water electrolysis hydrogen production power.

Description

Technical Field

[0001] The present application relates to the technical field of water electrolysis hydrogen production, and in particular to a control method, device, electronic equipment and storage medium for a water electrolysis hydrogen production system. Background Art

[0002] The explosion limit of hydrogen in oxygen is 4%-95%. When the water electrolysis hydrogen production system is operating under wide power fluctuation conditions, the purity of hydrogen in oxygen will deteriorate as the operating power decreases, and the hydrogen content in the product oxygen will continue to rise and reach the explosion limit. Therefore, in view of safety considerations, the relevant technology usually uses the ratio of hydrogen content in oxygen as a safety measure during the operation of the water electrolysis hydrogen production system. When the ratio of hydrogen content in oxygen exceeds the set range, the water electrolysis hydrogen production system will automatically shut down for protection. However, excessive and frequent shutdowns will shorten the life of the electrolyzer and reduce the operating time of the system, affecting the production of hydrogen. Summary of the invention

[0003] In view of this, the present application provides a control method, device, electronic device and storage medium for a water electrolysis hydrogen production system. The main purpose is to solve the technical problem in the prior art that when the hydrogen content in oxygen exceeds a set range, the water electrolysis hydrogen production system will automatically shut down for protection, shortening the life of the electrolytic cell and affecting the hydrogen production.

[0004] According to the first aspect of the present application, a control method for a water electrolysis hydrogen production system is provided, the method comprising:

[0005] Obtain the current operating power of the water electrolysis hydrogen production system and the current hydrogen content ratio in oxygen;

[0006] comparing the current operating power with a first preset power threshold and a second preset power threshold;

[0007] Based on the comparison result and / or the current ratio of hydrogen content in oxygen, at least one operating parameter of the water electrolysis hydrogen production system is adjusted, wherein the operating parameters include system flow, system operating power and system pressure.

[0008] Optionally, based on the comparison result and / or the current proportion of hydrogen content in oxygen, the step of adjusting at least one operating parameter of the water electrolysis hydrogen production system specifically includes:

[0009] When the current operating power is greater than the first preset power threshold, the flow regulating device of the water electrolysis hydrogen production system is adjusted based on the first preset flow threshold so that the system flow reaches the first preset flow threshold.

[0010] Optionally, based on the comparison result and / or the current proportion of hydrogen content in oxygen, the step of adjusting at least one operating parameter of the water electrolysis hydrogen production system specifically further includes:

[0011] When the current operating power is less than or equal to the first preset power threshold and greater than or equal to the second preset power threshold;

[0012] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0013] If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, the target hydrogen production of the water electrolysis hydrogen production system is obtained;

[0014] Adjust at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen;

[0015] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0016] Optionally, the step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen specifically includes:

[0017] Based on the target hydrogen production amount, the system operating power of the water electrolysis hydrogen production system is adjusted;

[0018] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0019] If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the flow regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold;

[0020] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0021] Optionally, based on the comparison result and / or the current proportion of hydrogen content in oxygen, the step of adjusting at least one operating parameter of the water electrolysis hydrogen production system specifically further includes:

[0022] When the current operating power is less than the second preset power threshold, obtaining a second preset flow threshold of the system flow;

[0023] Based on the second preset flow threshold, adjusting the flow regulating device of the water electrolysis hydrogen production system so that the system flow reaches the second preset flow threshold;

[0024] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0025] If the current hydrogen content ratio in oxygen is greater than or equal to a preset hydrogen content ratio threshold, adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen;

[0026] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0027] Optionally, the step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen specifically includes:

[0028] Based on the target hydrogen production amount, the system operating power of the water electrolysis hydrogen production system is adjusted;

[0029] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0030] If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the pressure regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold;

[0031] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0032] Optionally, the method further comprises:

[0033] Generate adjustment prompt information based on an adjustment action of adjusting at least one operating parameter of the water electrolysis hydrogen production system;

[0034] The adjustment prompt information is sent to the terminals of relevant personnel.

[0035] According to a second aspect of the present application, a control device for a water electrolysis hydrogen production system is provided, the device comprising:

[0036] An acquisition module is used to obtain the current operating power of the water electrolysis hydrogen production system and the current hydrogen content ratio in oxygen;

[0037] A comparison module, configured to compare the current operating power with a first preset power threshold and a second preset power threshold;

[0038] The control module is used to adjust at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current proportion of hydrogen content in oxygen, wherein the operating parameters include system flow, system operating power and system pressure.

[0039] According to a third aspect of the present application, an electronic device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any one of the methods described in the first aspect when executing the computer program.

[0040] According to a fourth aspect of the present application, a readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of any one of the methods in the first aspect are implemented.

[0041] By means of the above technical scheme, the present application provides a control method, device, electronic device and storage medium for a water electrolysis hydrogen production system. Specifically, during the operation of the water electrolysis hydrogen production system, based on the comparison result between the current operating power of the water electrolysis hydrogen production system and the preset maximum power value and minimum power value and the current hydrogen content ratio in oxygen, the electrolyte circulation flow, pressure and operating power of the water electrolysis hydrogen production system are adjusted, so that when the water electrolysis hydrogen production system is operated under a wide power, the hydrogen in oxygen is maintained within a safe range, so as to enable the water electrolysis hydrogen production system to adapt to the volatility of wind-solar coupled water electrolysis hydrogen production power. Compared with the method adopted in the related art that when the hydrogen content ratio in oxygen exceeds the set range, the water electrolysis hydrogen production system will automatically shut down for protection, the present application adjusts the operating parameters in real time to avoid safety accidents caused by excessive hydrogen content in oxygen, while allowing the hydrogen production system to operate effectively within a wider power range, maximizing the use efficiency of the equipment, reducing frequent shutdown events, and thus improving the system's operating time and production efficiency.

[0042] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0044] Figure 1 A schematic flow chart of a control method for a water electrolysis hydrogen production system provided in an embodiment of the present application is shown;

[0045] Figure 2 A schematic flow chart of another control method for a water electrolysis hydrogen production system provided in an embodiment of the present application is shown;

[0046] Figure 3A schematic diagram of the structure of a control device of a water electrolysis hydrogen production system provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0048] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0049] The following, in combination with the accompanying drawings, describes in detail the autonomous driving path planning method, device, autonomous driving vehicle and readable storage medium provided in the embodiments of the present application through specific embodiments and their application scenarios.

[0050] The present application embodiment provides a control method for a water electrolysis hydrogen production system, such as Figure 1 As shown, the method includes:

[0051] S101. Obtain the current operating power of the water electrolysis hydrogen production system and the current ratio of hydrogen content in oxygen.

[0052] In this step, during the hydrogen production process of the water electrolysis hydrogen production system, the current operating power of the water electrolysis hydrogen production system is obtained through a power sensor. The proportion of hydrogen in oxygen is measured through a hydrogen purity analyzer in oxygen.

[0053] Optionally, the water electrolysis hydrogen production system can be at least one of the following: an alkaline electrolysis hydrogen production system, an acidic electrolysis hydrogen production system and a solid oxide water electrolysis hydrogen production system. In this application, based on the relationship between gas purity and equipment operating power, circulating water flow rate and operating pressure, the system operating parameters are adjusted to ensure the purity of the system gas and the safe operation of the hydrogen production system under wide power fluctuations.

[0054] S102: Compare the current operating power with a first preset power threshold and a second preset power threshold.

[0055] In this step, the first preset power threshold is a preset maximum power value, and the second preset power threshold is a preset minimum power value. The current power is compared with the preset threshold, the operating state of the system is analyzed, and it is determined whether the operating parameters of the system need to be adjusted.

[0056] Optionally, the first preset power threshold is set to 100%; the second preset power threshold is set to 30%. By setting the first preset power threshold and the second preset power threshold, the operating parameters of the water electrolysis hydrogen production system are adjusted in intervals to achieve precise control of the hydrogen production system, which can ensure the safe operation of the electrolyzer while increasing the efficiency of the electrolyzer water electrolysis hydrogen production.

[0057] S103, adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current ratio of hydrogen content in oxygen;

[0058] Among them, the operating parameters include system flow, system operating power and system pressure.

[0059] In this step, based on the comparison result between the current power and the preset threshold value, combined with the change in the ratio of hydrogen content in oxygen, it is determined whether one or more operating parameters of the system need to be adjusted so that the ratio of hydrogen content in oxygen in the system meets the safety requirements, ensuring the safety of the hydrogen production process and ensuring the efficiency of hydrogen production.

[0060] In one embodiment of the present application, based on the comparison result and / or the current ratio of hydrogen content in oxygen, adjusting at least one operating parameter of the water electrolysis hydrogen production system includes:

[0061] When the current operating power is greater than the first preset power threshold, the flow regulating device of the water electrolysis hydrogen production system is adjusted based on the first preset flow threshold so that the system flow reaches the first preset flow threshold.

[0062] In this embodiment, if the current operating power of the system is greater than the set maximum power value (i.e., the first preset power threshold), it is determined whether the current circulation flow rate of the electrolyte (i.e., the system flow rate) has reached the preset maximum flow rate (i.e., the first preset flow rate threshold). If the circulation flow rate of the electrolyte has not reached the maximum flow rate, the flow value that needs to be increased is calculated based on the current flow rate and the first preset flow rate threshold, and then based on the flow value that needs to be increased, the setting of the flow regulating device is adjusted to increase the system flow so that the system flow reaches the first preset flow rate threshold.

[0063] Optionally, the flow regulating device can be a combination of one or more of a diaphragm pump, a gear pump, and a centrifugal pump. During the adjustment of the flow regulating device, the speed of the pump is automatically adjusted based on the flow value that needs to be increased, and the adjustment effect of the flow regulating device is monitored in real time to ensure that the electrolyte circulation flow reaches a preset maximum flow rate.

[0064] Through the above method, when the current power exceeds the maximum flow rate, increasing the system flow rate can more effectively remove the heat generated during the electrolysis process and reduce the temperature of the electrolytic cell, thereby avoiding possible equipment damage or efficiency reduction due to system overheating, while ensuring uniform distribution of the electrolyte and good electrolyte contact, thereby improving electrolysis efficiency.

[0065] In one embodiment of the present application, adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current hydrogen content ratio in oxygen further includes:

[0066] When the current operating power is less than or equal to a first preset power threshold, and greater than or equal to a second preset power threshold; compare the current hydrogen content ratio in oxygen with the preset hydrogen content ratio threshold; if the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, obtain a target hydrogen production amount of the water electrolysis hydrogen production system; based on the target hydrogen production amount and the current hydrogen content ratio in oxygen, adjust at least one operating parameter of the water electrolysis hydrogen production system; if the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0067] In this embodiment, the power fluctuation of the water electrolysis hydrogen production system will affect the purity of the product gas. As the power of the hydrogen production system decreases, the hydrogen content in the product oxygen will continue to rise and may reach the explosion limit. Therefore, in order to ensure the safety of the hydrogen production system during operation, when the current operating power is between the preset maximum flow rate (i.e., the first preset power threshold) and the minimum flow rate (i.e., the second preset power threshold), the current hydrogen content ratio in oxygen is compared with the preset hydrogen content ratio threshold to monitor the gas purity in the system. If the current hydrogen content ratio in oxygen is higher than the preset hydrogen content ratio threshold, if the system power continues to decrease at this time, there is a possibility that the hydrogen content ratio in oxygen continues to rise and causes an explosion. Therefore, when it is detected that the hydrogen content ratio in oxygen is higher than the threshold, based on the target hydrogen production amount of the hydrogen production system and the current hydrogen content ratio in oxygen, at least one operating parameter of the water electrolysis hydrogen production system is adjusted to accelerate the separation of hydrogen and oxygen and reduce the hydrogen content in oxygen.

[0068] Furthermore, if the current hydrogen content ratio in Yangzhong is lower than the preset hydrogen content ratio threshold, the water electrolysis hydrogen production system can maintain the current state without adjusting the operating parameters.

[0069] Optionally, the preset hydrogen content ratio threshold is set to 1.5%. The explosion limit of hydrogen in oxygen is 4% to 95%. In view of safety considerations, a hydrogen purity analyzer in oxygen and an oxygen purity analyzer in hydrogen are set in the water electrolysis hydrogen production system, and the monitoring range is set to 0% to 2%. Based on the characteristics of the water electrolysis hydrogen production system itself and the strong permeability of hydrogen, the purity of oxygen in hydrogen is lower than that of hydrogen in oxygen. Therefore, the purity of hydrogen in oxygen is used as the most important indicator for measuring system safety, and the preset hydrogen content ratio threshold is set based on the monitoring range.

[0070] In one embodiment of the present application, based on the target hydrogen production amount and the current hydrogen content ratio in oxygen, adjusting at least one operating parameter of the water electrolysis hydrogen production system includes:

[0071] Based on the target hydrogen production, adjust the system operating power of the water electrolysis hydrogen production system; compare the current hydrogen content ratio in oxygen with the preset hydrogen content ratio threshold; if the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the flow regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold; if the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0072] In this embodiment, the target hydrogen production refers to the total amount of hydrogen that the water electrolysis hydrogen production system is expected to produce within a period of time. By adjusting the system operating power, the production capacity of the electrolyzer in the hydrogen production system matches the target hydrogen production. After adjusting the system operating power, the current hydrogen content ratio in oxygen is compared with the preset hydrogen content ratio threshold. If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, the flow regulating device is adjusted to increase the system circulation flow to increase the contact area between the electrolyte and the gas, accelerate the separation of hydrogen and oxygen, and reduce the hydrogen content in oxygen until the hydrogen content ratio in oxygen is lower than the preset hydrogen content ratio threshold; if the current hydrogen content ratio in oxygen is lower than the preset hydrogen content ratio threshold, it means that the hydrogen content ratio in oxygen is within a safe range at this time, and there is no need to adjust the operating parameters of the hydrogen production system, so that the hydrogen production system can maintain the current operating state.

[0073] Furthermore, after adjusting the system operating power, the current hydrogen content in oxygen is compared with the preset hydrogen content ratio threshold. If the current hydrogen content in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system, and the current state can be maintained.

[0074] In actual application scenarios, based on the target hydrogen production and the electrolysis efficiency of the hydrogen production system, the formula P = E × Q / η is used to calculate the power required to achieve the target hydrogen production, where P is the target power; E is the voltage during the electrolysis process; Q is the target hydrogen production; and η is the electrolysis efficiency of the system. Based on the calculation results, the power settings of the system are adjusted to ensure that the voltage and current of the electrolyzer meet the target power requirements so that it can provide the required power.

[0075] Through the above method, when the current operating power of the water electrolysis hydrogen production system is lower than the maximum power and higher than the minimum power, the hydrogen content in the oxygen of the water electrolysis hydrogen production system is maintained within a safe range by adjusting the electrolyte circulation flow rate of the water electrolysis hydrogen production system as the operating power changes.

[0076] In one embodiment of the present application, adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current hydrogen content ratio in oxygen further includes:

[0077] When the current operating power is less than the second preset power threshold, obtain the second preset flow threshold of the system flow; based on the second preset flow threshold, adjust the flow regulating device of the water electrolysis hydrogen production system to make the system flow reach the second preset flow threshold; compare the current hydrogen content in oxygen ratio with the preset hydrogen content ratio threshold; if the current hydrogen content in oxygen ratio is greater than or equal to the preset hydrogen content ratio threshold, adjust at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content in oxygen ratio; if the current hydrogen content in oxygen ratio is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0078] In this embodiment, during the operation of the water electrolysis hydrogen production system, if the current operating power of the water electrolysis hydrogen production system is less than the preset minimum operating power (i.e., the second preset power threshold), the second preset flow threshold of the system hydrolyzate circulation flow is obtained, and the second preset flow threshold is the set minimum flow value. At this time, based on the second preset flow threshold and the current system flow, the flow value that needs to be reduced is determined, the speed of the flow regulating device is calculated according to the flow value that needs to be reduced, and the flow regulating device is adjusted according to the calculated speed to control the system flow at the minimum flow value. Thereafter, the current hydrogen content ratio in oxygen is compared with the preset hydrogen content ratio threshold. If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, it is necessary to adjust at least one operating parameter of the water electrolysis hydrogen production system so that the hydrogen content ratio in oxygen is maintained within a safe range; if the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, the hydrogen in oxygen is within a safe range at this time, and the specification indicates that the hydrogen in oxygen is within a safe range, then there is no need to adjust the operating parameters of the hydrogen production system, so that the hydrogen production system maintains the current operating state.

[0079] In one embodiment of the present application, based on the target hydrogen production amount and the current hydrogen content ratio in oxygen, adjusting at least one operating parameter of the water electrolysis hydrogen production system includes:

[0080] Based on the target hydrogen production, adjust the system operating power of the water electrolysis hydrogen production system; compare the current hydrogen content in oxygen ratio with the preset hydrogen content ratio threshold; if the current hydrogen content in oxygen ratio is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the pressure regulating device of the water electrolysis hydrogen production system so that the current hydrogen content in oxygen ratio is less than the preset hydrogen content ratio threshold; if the current hydrogen content in oxygen ratio is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0081] In this embodiment, the production capacity of the electrolyzer in the hydrogen production system is matched with the target hydrogen production by adjusting the operating power of the system. After adjusting the operating power of the system, the current hydrogen content ratio in oxygen is compared with the preset hydrogen content ratio threshold value. If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold value, the pressure regulating device is adjusted to increase the system pressure, accelerate the separation of hydrogen and oxygen, and reduce the hydrogen content in oxygen until the hydrogen content ratio in oxygen is lower than the preset hydrogen content ratio threshold value; if the current hydrogen content ratio in oxygen is lower than the preset hydrogen content ratio threshold value, it means that the hydrogen content ratio in oxygen is within a safe range at this time, and there is no need to adjust the operating parameters of the hydrogen production system, so that the hydrogen production system can maintain the current operating state.

[0082] In actual application scenarios, during the water electrolysis process, the solubility of the gas is related to the pressure. The increase in pressure helps to reduce the solubility of the gas, thereby improving the gas separation effect. Based on the gas separation theory, the pressure range that needs to be adjusted is calculated according to the preset hydrogen content ratio threshold and the current hydrogen content ratio in oxygen. According to the calculation results, the pressure in the system is adjusted through the pressure regulating device, so that the system pressure is increased to help reduce the hydrogen content in oxygen.

[0083] Through the above method, when the current operating power of the water electrolysis hydrogen production system is lower than the minimum power value, the system pressure of the water electrolysis hydrogen production system is adjusted according to the change of the operating power, so that the hydrogen content in the oxygen of the water electrolysis hydrogen production system is maintained within a safe range.

[0084] In one embodiment of the present application, in order to ensure the safety of the water electrolysis hydrogen production system, the method further includes:

[0085] Based on an adjustment action of adjusting at least one operating parameter of the water electrolysis hydrogen production system, adjustment prompt information is generated; and the adjustment prompt information is sent to a terminal of a relevant professional.

[0086] In this embodiment, after the water electrolysis hydrogen production system adjusts at least one operating parameter, adjustment prompt information is generated based on the adjustment action, and the adjustment prompt information is sent to the terminal of relevant personnel, which helps relevant professionals to timely understand the current operating status of the hydrogen production system to work together, facilitate subsequent identification and resolution of potential problems, and avoid safety hazards.

[0087] The control method of the water electrolysis hydrogen production system proposed in the present application, during the operation of the water electrolysis hydrogen production system, adjusts the electrolyte circulation flow, pressure and operating power of the water electrolysis hydrogen production system based on the comparison results of the current operating power of the water electrolysis hydrogen production system and the preset maximum power and minimum power values ​​and the current hydrogen content ratio in oxygen, so that when the water electrolysis hydrogen production system operates under a wide power, the hydrogen in oxygen is maintained in a safe range, so as to enable the water electrolysis hydrogen production system to adapt to the volatility of wind-solar coupled water electrolysis hydrogen production power. Compared with the method used in the related art that when the hydrogen content ratio in oxygen exceeds the set range, the water electrolysis hydrogen production system will automatically shut down for protection, the present application adjusts the operating parameters in real time to avoid safety accidents caused by excessive hydrogen content in oxygen, while allowing the hydrogen production system to operate effectively within a wider power range, maximizing the use efficiency of the equipment, reducing frequent shutdown events, and thus improving the system's operating time and production efficiency.

[0088] The present application further provides another control method for a water electrolysis hydrogen production system as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of the present embodiment, such as Figure 2 As shown, the method includes:

[0089] Set the rated maximum power of the water electrolysis hydrogen production system to 100%; the rated minimum power to 30%; and the ratio of hydrogen content in oxygen to less than 1.5%. Monitor the current operating power of the water electrolysis hydrogen production system and the current ratio of hydrogen content in oxygen. When the current operating power of the water electrolysis hydrogen production system is greater than 100%, adjust the system flow in the water electrolysis hydrogen production system to the maximum flow rate;

[0090] When the current operating power of the water electrolysis hydrogen production system is less than 30%, the system flow of the water electrolysis hydrogen production system is adjusted to the minimum flow, and the pressure of the water electrolysis hydrogen production system is adjusted to change with the power, so that the proportion of hydrogen content in oxygen of the water electrolysis hydrogen production system is less than 1.5%;

[0091] When the operating power of the water electrolysis hydrogen production system is lower than 100% and higher than 30%, the system flow of the water electrolysis hydrogen production system is adjusted according to the change of the operating power, so that the proportion of hydrogen content in oxygen of the water electrolysis hydrogen production system is lower than 1.5%.

[0092] Further, as Figure 1In a specific implementation of the method, the present application provides a control device 300 for a water electrolysis hydrogen production system, such as Figure 3 As shown, the device includes: an acquisition module 301, a comparison module 302 and a control module 303.

[0093] An acquisition module 301 is used to acquire the current operating power of the water electrolysis hydrogen production system and the current hydrogen content ratio in oxygen;

[0094] A comparison module 302, configured to compare the current operating power with a first preset power threshold and a second preset power threshold;

[0095] The control module 303 is used to adjust at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current proportion of hydrogen content in oxygen, wherein the operating parameters include system flow, system operating power and system pressure.

[0096] In a specific application scenario, the control module 303 is specifically used to:

[0097] When the current operating power is greater than the first preset power threshold, the flow regulating device of the water electrolysis hydrogen production system is adjusted based on the first preset flow threshold so that the system flow reaches the first preset flow threshold.

[0098] In a specific application scenario, the control module 303 is further used to:

[0099] When the current operating power is less than or equal to the first preset power threshold and greater than or equal to the second preset power threshold;

[0100] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0101] If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, the target hydrogen production of the water electrolysis hydrogen production system is obtained;

[0102] Adjust at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen;

[0103] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0104] In a specific application scenario, the control module 303 is further used to:

[0105] Based on the target hydrogen production amount, the system operating power of the water electrolysis hydrogen production system is adjusted;

[0106] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0107] If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the flow regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold;

[0108] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0109] In a specific application scenario, the control module 303 is further used to:

[0110] When the current operating power is less than the second preset power threshold, obtaining a second preset flow threshold of the system flow;

[0111] Based on the second preset flow threshold, adjusting the flow regulating device of the water electrolysis hydrogen production system so that the system flow reaches the second preset flow threshold;

[0112] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0113] If the current hydrogen content ratio in oxygen is greater than or equal to a preset hydrogen content ratio threshold, adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen;

[0114] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0115] In a specific application scenario, the control module 303 is also specifically used for:

[0116] Based on the target hydrogen production amount, the system operating power of the water electrolysis hydrogen production system is adjusted;

[0117] Compare the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold;

[0118] If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the pressure regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold;

[0119] If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

[0120] In a specific application scenario, the device also includes:

[0121] A generating module, configured to generate adjustment prompt information based on an adjustment action of adjusting at least one operating parameter of the water electrolysis hydrogen production system;

[0122] The sending module is used to send the adjustment prompt information to the terminal of the relevant personnel.

[0123] The control device 300 of the water electrolysis hydrogen production system provided in the embodiment of the present application adjusts the electrolyte circulation flow, pressure and operating power of the water electrolysis hydrogen production system based on the comparison result of the current operating power of the water electrolysis hydrogen production system and the preset maximum power and minimum power values ​​and the current hydrogen content ratio in oxygen during the operation of the water electrolysis hydrogen production system, so that when the water electrolysis hydrogen production system operates under a wide power, the hydrogen in oxygen is maintained in a safe range, so as to enable the water electrolysis hydrogen production system to adapt to the volatility of wind-solar coupled water electrolysis hydrogen production power. Compared with the method used in the related art that when the hydrogen content ratio in oxygen exceeds the set range, the water electrolysis hydrogen production system will automatically shut down for protection, the present application adjusts the operating parameters in real time to avoid safety accidents caused by excessive hydrogen content in oxygen, while allowing the hydrogen production system to operate effectively within a wider power range, maximize the use efficiency of the equipment, reduce frequent shutdown events, and thus improve the system's operating time and production efficiency.

[0124] In an exemplary embodiment, the present application further provides an electronic device, including a memory and a processor. The memory stores a computer program, and the processor is used to execute the program stored in the memory and execute the control method of the water electrolysis hydrogen production system in the above embodiment.

[0125] In an exemplary embodiment, the present application also provides a readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the control method of the water electrolysis hydrogen production system are implemented.

[0126] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by hardware, or by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile readable storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for enabling an electronic device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present application.

[0127] Those skilled in the art will appreciate that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present application.

[0128] Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple units.

[0129] The above application serial numbers are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0130] The above disclosure only discloses several specific implementation scenarios of the present application. However, the present application is not limited thereto, and any changes that can be conceived by technicians in this field should fall within the scope of protection of the present application.

Claims

1. A control method for a water electrolysis hydrogen production system, characterized in that: The method comprises: Obtain the current operating power of the water electrolysis hydrogen production system and the current hydrogen content ratio in oxygen; Comparing the current operating power with a first preset power threshold and a second preset power threshold; Based on the comparison result and / or the current ratio of hydrogen content in oxygen, at least one operating parameter of the water electrolysis hydrogen production system is adjusted, wherein the operating parameters include system flow, system operating power and system pressure.

2. The method according to claim 1, characterized in that The step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current proportion of hydrogen content in oxygen specifically includes: When the current operating power is greater than the first preset power threshold, the flow regulating device of the water electrolysis hydrogen production system is adjusted based on the first preset flow threshold so that the system flow reaches the first preset flow threshold.

3. The method according to claim 1, characterized in that The step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current proportion of hydrogen content in oxygen specifically includes: When the current operating power is less than or equal to the first preset power threshold and greater than or equal to the second preset power threshold; Comparing the current hydrogen content ratio in oxygen with a preset hydrogen content ratio threshold; If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, obtaining a target hydrogen production amount of the water electrolysis hydrogen production system; Based on the target hydrogen production amount and the current ratio of hydrogen content in oxygen, adjusting at least one operating parameter of the water electrolysis hydrogen production system; If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

4. The method according to claim 3, characterized in that The step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen specifically includes: Based on the target hydrogen production amount, adjusting the system operating power of the water electrolysis hydrogen production system; Comparing the current hydrogen content ratio in oxygen with the preset hydrogen content ratio threshold; If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the flow regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold; If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

5. The method according to claim 1, characterized in that: The step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current proportion of hydrogen content in oxygen specifically includes: When the current operating power is less than the second preset power threshold, obtaining a second preset flow threshold of the system flow; Based on the second preset flow threshold, adjusting the flow regulating device of the water electrolysis hydrogen production system so that the system flow reaches the second preset flow threshold; Comparing the current hydrogen content ratio in oxygen with the preset hydrogen content ratio threshold; If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen; If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

6. The method according to claim 5, characterized in that The step of adjusting at least one operating parameter of the water electrolysis hydrogen production system based on the target hydrogen production amount and the current hydrogen content ratio in oxygen specifically includes: Based on the target hydrogen production amount, adjusting the system operating power of the water electrolysis hydrogen production system; Comparing the current hydrogen content ratio in oxygen with the preset hydrogen content ratio threshold; If the current hydrogen content ratio in oxygen is greater than or equal to the preset hydrogen content ratio threshold, based on the preset hydrogen content ratio threshold, adjust the pressure regulating device of the water electrolysis hydrogen production system so that the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold; If the current hydrogen content ratio in oxygen is less than the preset hydrogen content ratio threshold, there is no need to adjust the operating parameters of the water electrolysis hydrogen production system.

7. The method according to any one of claims 1 to 6, characterized in that Also includes: Generate adjustment prompt information based on an adjustment action of adjusting at least one operating parameter of the water electrolysis hydrogen production system; The adjustment prompt information is sent to the terminal of the relevant personnel.

8. A control device for a water electrolysis hydrogen production system, characterized in that: The device comprises: An acquisition module is used to obtain the current operating power of the water electrolysis hydrogen production system and the current hydrogen content ratio in oxygen; A comparison module, configured to compare the current operating power with a first preset power threshold and a second preset power threshold; A control module is used to adjust at least one operating parameter of the water electrolysis hydrogen production system based on the comparison result and / or the current proportion of hydrogen content in oxygen, wherein the operating parameters include system flow, system operating power and system pressure.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When a processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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