A control method, device and equipment for PEM electrolysis hydrogen production and hydrogen storage and supply

Abstract

The present application relates to a control method, device, storage medium and equipment for PEM electrolysis hydrogen production and hydrogen storage and supply. The method compares and judges the second pressure data collected when the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state with a third pressure threshold. Only when the second pressure data is not greater than the third pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to load the electrolysis current to produce hydrogen, and hydrogen is provided to the hydrogen storage and supply equipment, so as to ensure that the PEM electrolysis hydrogen production equipment can load the electrolysis current faster, improve the hydrogen production efficiency of the PEM electrolysis hydrogen production equipment, and ensure that the PEM electrolysis hydrogen production equipment will not be oxidized due to the high current load caused by too low temperature, thereby improving the service life of the PEM electrolysis hydrogen production equipment; and solves the technical problems that the control methods of the existing hydrogen production, hydrogen storage and hydrogen supply control systems have low hydrogen production efficiency and large losses to the hydrogen production equipment, resulting in a short service life of the hydrogen production equipment.

Description

Technical Field

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

[0002] After the PEM electrolysis hydrogen production equipment produces hydrogen, it will supply hydrogen to the hydrogen-using equipment in the next step. If the produced hydrogen is directly supplied to the hydrogen-using equipment, the hydrogen supply pressure will be unstable. The existing method is to separate hydrogen production, hydrogen storage and hydrogen supply into multiple control systems. The operation of multiple system controls is not simple, and the existing control method of multiple control systems for hydrogen production, hydrogen storage and hydrogen supply has low hydrogen production efficiency and large losses to hydrogen production equipment, resulting in a short service life of hydrogen production equipment. Summary of the invention

[0003] The embodiments of the present application provide a control method, device, storage medium and equipment for PEM electrolysis hydrogen production and hydrogen storage and supply, which are used to solve the technical problems that the control methods of existing hydrogen production, hydrogen storage and hydrogen supply control systems have low hydrogen production efficiency and large losses to hydrogen production equipment, resulting in a short service life of hydrogen production equipment.

[0004] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0005] On the one hand, a control method for PEM electrolysis hydrogen production and hydrogen storage and supply is provided, which is applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system, wherein the PEM electrolysis hydrogen production and hydrogen storage and supply system comprises a PEM electrolysis hydrogen production device and a hydrogen storage and supply device, and the control method comprises the following steps:

[0006] Controlling the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment, and collecting first pressure data of the hydrogen storage and supply equipment in real time;

[0007] Control the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation status;

[0008] If the operating state of the equipment is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state, collecting the second pressure data of the hydrogen storage and supply equipment;

[0009] If the second pressure data is not greater than the third pressure threshold, the PEM electrolysis hydrogen production device is controlled to load the electrolysis current to produce hydrogen, and hydrogen is provided to the hydrogen storage and supply device.

[0010] Preferably, controlling the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation status includes:

[0011] If the first pressure data is not less than the first pressure threshold and not greater than the second pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to provide hydrogen to the hydrogen storage and supply equipment and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0012] If the first pressure data is greater than the second pressure threshold and not greater than the fourth pressure threshold, the electrolysis current of the PEM electrolysis hydrogen production equipment is controlled to automatically reduce to zero and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0013] If the first pressure data is less than the first pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to operate to provide hydrogen to the hydrogen storage and supply equipment and the hydrogen storage and supply equipment is controlled not to work, then the equipment operating state is that the PEM electrolysis hydrogen production equipment is in the hydrogen production working state and the hydrogen storage and supply equipment is in the standby state.

[0014] Preferably, the first pressure threshold is the minimum allowable hydrogen supply pressure, the second pressure threshold is the upper pressure limit of the hydrogen storage and supply device, and the fourth pressure threshold is the pressure limit of the hydrogen storage and supply device.

[0015] Preferably, the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment is controlled according to the first pressure data, and the equipment operation status is obtained, including: if the first pressure data is greater than the fourth pressure threshold, the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment are controlled to stop working, then the equipment operation status is that the PEM electrolysis hydrogen production equipment is in a fault state and the hydrogen storage and supply equipment is in a shutdown state.

[0016] Preferably, if the PEM electrolysis hydrogen production equipment includes an electrolyzer and a hydrogen purifier connected to the electrolyzer, the control method includes:

[0017] Collecting the outlet hydrogen pressure of the electrolyzer and the pressure data of the hydrogen purifier;

[0018] If the outlet hydrogen pressure is greater than the fifth pressure threshold and / or the pressure data is greater than the sixth pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to shut down, and the equipment operating state is that the PEM electrolysis hydrogen production equipment is in a fault state and the hydrogen storage and supply equipment is in a shutdown state.

[0019] Preferably, the fifth pressure threshold is the hydrogen outlet pressure limit value of the electrolyzer, and the sixth pressure threshold is the hydrogen purifier pressure limit value.

[0020] On the other hand, a control device for PEM electrolysis hydrogen production and hydrogen storage and supply is provided, which is applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system, wherein the PEM electrolysis hydrogen production and hydrogen storage and supply system comprises a PEM electrolysis hydrogen production device and a hydrogen storage and supply device, and the control device comprises a first data acquisition module, a state determination module, a second data acquisition module and a judgment control module;

[0021] The first data acquisition module is used to control the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment, and to collect the first pressure data of the hydrogen storage and supply equipment in real time;

[0022] The state determination module is used to control the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation state;

[0023] The second data acquisition module is used to collect the second pressure data of the hydrogen storage and supply equipment according to the operating state of the equipment, that is, the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0024] The judgment control module is used to control the PEM electrolysis hydrogen production equipment to load electrolysis current to produce hydrogen and provide hydrogen to the hydrogen storage and supply equipment according to the second pressure data being not greater than a third pressure threshold.

[0025] Preferably, the state determination module includes a first state determination submodule, a second state determination submodule and a third state determination submodule;

[0026] The first state determination submodule is used to control the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment and control the hydrogen storage and supply equipment to supply hydrogen to the hydrogen-using equipment according to the first pressure data being not less than the first pressure threshold and not greater than the second pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0027] The second state determination submodule is used to control the electrolysis current of the PEM electrolysis hydrogen production equipment to automatically reduce to zero and control the hydrogen storage and supply equipment to supply hydrogen to the hydrogen-using equipment according to the first pressure data being greater than the second pressure threshold and not greater than the fourth pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0028] The third state determination submodule is used to control the PEM electrolysis hydrogen production equipment to operate to provide hydrogen to the hydrogen storage and supply equipment and to control the hydrogen storage and supply equipment to stop working according to the first pressure data being less than the first pressure threshold. The equipment operating state is that the PEM electrolysis hydrogen production equipment is in the hydrogen production working state and the hydrogen storage and supply equipment is in the standby state.

[0029] On the other hand, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store computer instructions, and when the computer-readable storage medium is run on a computer, the computer executes the above-mentioned control method for PEM electrolysis hydrogen production and hydrogen storage and supply.

[0030] In another aspect, a terminal device is provided, comprising a processor and a memory;

[0031] The memory is used to store program codes and transmit the program codes to the processor;

[0032] The processor is used to execute the above-mentioned PEM electrolysis hydrogen production and hydrogen storage and supply control method according to the instructions in the program code.

[0033] The control method, device, storage medium and equipment of PEM electrolysis hydrogen production and hydrogen storage and supply are applied to PEM electrolysis hydrogen production and hydrogen storage and supply system. The PEM electrolysis hydrogen production and hydrogen storage and supply system includes PEM electrolysis hydrogen production equipment and hydrogen storage and supply equipment. The control method includes controlling the operation of PEM electrolysis hydrogen production equipment to provide hydrogen to hydrogen storage and supply equipment, and collecting first pressure data of hydrogen storage and supply equipment in real time; controlling the operation of PEM electrolysis hydrogen production equipment and hydrogen storage and supply equipment according to the first pressure data to obtain the operation status of the equipment; if the operation status of the equipment is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state, collecting second pressure data of the hydrogen storage and supply equipment; if the second pressure data is not greater than a third pressure threshold, controlling the PEM electrolysis hydrogen production equipment to load an electrolysis current to produce hydrogen, and providing hydrogen to the hydrogen storage and supply equipment. It can be seen from the above technical scheme that the embodiment of the present application has the following advantages: through the control method of PEM electrolysis hydrogen production and hydrogen storage and hydrogen supply, the second pressure data collected when the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and hydrogen supply equipment is in a hydrogen supply working state is compared with the third pressure threshold value. Only when the second pressure data is not greater than the third pressure threshold value, the PEM electrolysis hydrogen production equipment is controlled to load the electrolysis current to produce hydrogen, and hydrogen is provided to the hydrogen storage and hydrogen supply equipment, ensuring that the PEM electrolysis hydrogen production equipment can load the electrolysis current faster, thereby improving the hydrogen production efficiency of the PEM electrolysis hydrogen production equipment, and ensuring that the PEM electrolysis hydrogen production equipment will not be oxidized due to excessively low temperature and a higher current load, thereby improving the service life of the PEM electrolysis hydrogen production equipment; it solves the technical problem that the control methods of the existing hydrogen production, hydrogen storage and hydrogen supply control systems have low hydrogen production efficiency and large losses to the hydrogen production equipment, resulting in a short service life of the hydrogen production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 This is a flow chart of the steps of the control method for PEM electrolysis hydrogen production and hydrogen storage and supply described in the embodiment of the present application;

[0036] Figure 2 This is a schematic diagram of the framework of the PEM electrolysis hydrogen production and hydrogen storage and supply system of the embodiment of the present application;

[0037] Figure 3 It is a schematic diagram of the framework of the control method for PEM electrolysis hydrogen production and hydrogen storage and supply described in the embodiment of the present application;

[0038] Figure 4This is a schematic diagram of the framework of the control device for PEM electrolysis hydrogen production and hydrogen storage and supply described in the embodiment of the present application;

[0039] Figure 5 A schematic diagram of a terminal device described in an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] The embodiments of the present application provide a control method, device, storage medium and equipment for PEM electrolysis hydrogen production and storage and supply, which solve the technical problems that the control methods of existing hydrogen production, storage and supply control systems have low hydrogen production efficiency and large losses to hydrogen production equipment, resulting in a short service life of hydrogen production equipment.

[0044] Embodiment 1:

[0045] Figure 1 This is a flow chart of the steps of the control method for PEM electrolysis hydrogen production and hydrogen storage and supply described in the embodiment of the present application. Figure 2 This is a schematic diagram of the framework of the PEM electrolysis hydrogen production and hydrogen storage and supply system of the embodiment of the present application. Figure 3 This is a schematic diagram of the framework of the control method for PEM electrolysis hydrogen production and hydrogen storage and supply described in the embodiment of the present application.

[0046] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a control method for PEM electrolysis hydrogen production and hydrogen storage and supply, which is applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system. The PEM electrolysis hydrogen production and hydrogen storage and supply system includes a PEM electrolysis hydrogen production equipment and a hydrogen storage and supply equipment connected to the PEM electrolysis hydrogen production equipment.

[0047] It should be noted that the PEM electrolysis hydrogen production equipment is used to produce hydrogen and provide hydrogen to the hydrogen storage and supply equipment. The hydrogen storage and supply equipment is used to store the hydrogen provided by the PEM electrolysis hydrogen production equipment and to provide hydrogen to the hydrogen-using equipment. In the present embodiment, the hydrogen-using equipment is used to consume hydrogen. In the present embodiment, the PEM electrolysis hydrogen production equipment includes an electrolyzer and a hydrogen purifier connected to the electrolyzer. The PEM electrolysis hydrogen production and hydrogen storage and supply system is achieved by adding a hydrogen storage and hydrogen supply equipment to the end of the PEM electrolysis hydrogen production equipment. The hydrogen storage and hydrogen supply equipment uses a hydrogen container to store hydrogen, and then supplies hydrogen to the hydrogen-using equipment through the pressure control of the hydrogen storage and hydrogen supply equipment, the control of the hydrogen supply solenoid valve, etc., thereby solving the problem of unstable hydrogen supply pressure. The PEM electrolysis hydrogen production and hydrogen storage and hydrogen supply system is a system that controls the automatic linkage between the hydrogen storage and hydrogen supply equipment and the PEM electrolysis hydrogen production equipment. The control method for PEM electrolysis hydrogen production and hydrogen storage and supply enables the hydrogen storage and supply equipment and the PEM electrolysis hydrogen production equipment to automatically operate in linkage, thereby realizing one-button start-up automatic control of hydrogen production, hydrogen storage and hydrogen supply.

[0048] like Figure 1 and Figure 3 As shown, the control method for PEM electrolysis hydrogen production and hydrogen storage and supply includes the following steps:

[0049] S1. Control the operation of the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment, and collect the first pressure data of the hydrogen storage and supply equipment in real time.

[0050] It should be noted that in step S1, the PEM electrolysis hydrogen production equipment is controlled to produce hydrogen and provide it to the hydrogen storage and supply equipment. After the hydrogen is provided to the hydrogen storage and supply equipment, the pressure in the hydrogen storage and supply equipment is collected as the first pressure data.

[0051] S2. Control the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation status.

[0052] It should be noted that in step S2, the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment is controlled according to the first pressure data collected in step S1 to determine the equipment operation status.

[0053] S3. If the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state, collect the second pressure data of the hydrogen storage and supply equipment.

[0054] It should be noted that in step S3, based on the equipment operating state that the PEM electrolysis hydrogen production equipment is in standby state and the hydrogen storage and supply equipment is in hydrogen supply working state, the pressure of the hydrogen storage and supply equipment in this case is collected as the second pressure data to provide judgment data for subsequent control of equipment operation.

[0055] S4. If the second pressure data is not greater than the third pressure threshold, control the PEM electrolysis hydrogen production equipment to load the electrolysis current to produce hydrogen, and provide hydrogen to the hydrogen storage and supply equipment.

[0056] It should be noted that in step S4, the second pressure data collected in step S3 when the PEM electrolysis hydrogen production equipment is in standby state and the hydrogen storage and supply equipment is in hydrogen supply working state is compared with the third pressure threshold. Only when the second pressure data is not greater than the third pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to load the electrolysis current to produce hydrogen, and hydrogen is provided to the hydrogen storage and supply equipment, thereby ensuring the hydrogen production efficiency of the PEM electrolysis hydrogen production and hydrogen storage and supply system, and also ensuring the service life of the equipment in the PEM electrolysis hydrogen production and hydrogen storage and supply system. Among them, the third pressure threshold is less than the second pressure threshold. In this embodiment, the third pressure threshold can be selected as 26bar.

[0057] In the embodiment of the present application, when the PEM electrolysis hydrogen production equipment is in the standby state and the hydrogen storage and supply equipment is in the hydrogen supply working state, it means that the hydrogen storage and supply equipment continuously supplies hydrogen to the hydrogen-using equipment for hydrogen consumption. During the hydrogen consumption process of the hydrogen-using equipment, the pressure of the hydrogen storage and supply equipment will decrease accordingly. When the pressure of the hydrogen storage and supply equipment continues to decrease, when the collected second pressure data is not greater than the third pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to load the electrolysis current to produce hydrogen to provide hydrogen to the hydrogen storage and supply equipment, that is, the PEM electrolysis hydrogen production equipment is restarted and starts to increase the electrolysis current to produce hydrogen. At this time, the hydrogen storage and supply equipment continuously supplies hydrogen, and the PEM electrolysis hydrogen production equipment continuously produces hydrogen.

[0058] It should be noted that during the period when the second pressure data is between the second pressure threshold and the third pressure threshold, the operating condition of the PEM electrolysis hydrogen production equipment does not change much (such as the electrolysis circulating water temperature), and the PEM electrolysis hydrogen production equipment can increase the load current faster. If the standby time is too long and the operating condition of the PEM electrolysis hydrogen production equipment changes greatly, the current will be increased again, and the time for the electrolysis hydrogen production equipment to reach the optimal operating conditions will be longer. For example, the electrolysis circulating water temperature needs to be higher than 30°C to increase the current to the set current; because when the electrolysis circulating water temperature is low (lower than 30°C), the electrolyzer will have a higher single-chamber voltage when the current load is pulled to a higher current load. The ultra-high single-chamber voltage is likely to cause oxidation in the diffusion layer of the electrolyzer, and the hydrogen production efficiency of the PEM electrolysis hydrogen production equipment will be reduced, which will seriously affect the life of the electrolyzer. Therefore, after the second pressure data is no greater than the third pressure threshold, the operating condition of the PEM electrolysis hydrogen production equipment does not change much. Re-increasing the current to produce hydrogen can improve the hydrogen production efficiency of the PEM electrolysis hydrogen production equipment, and deeply reduce the impact on the life of the electrolyzer of the PEM electrolysis hydrogen production equipment, thereby increasing the service life of the PEM electrolysis hydrogen production equipment.

[0059] In an embodiment of the present application, the operation of the PEM electrolysis hydrogen production and storage and supply system is controlled by the control method of the PEM electrolysis hydrogen production and storage and supply system, so that the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment can be automatically linked to each other, so that the PEM electrolysis hydrogen production and storage and supply system has the function of one-key start of hydrogen production, storage and supply.

[0060] The present application provides a control method for PEM electrolysis hydrogen production and hydrogen storage and supply, which is applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system. The PEM electrolysis hydrogen production and hydrogen storage and supply system includes a PEM electrolysis hydrogen production device and a hydrogen storage and supply device. The control method includes controlling the PEM electrolysis hydrogen production device to operate to provide hydrogen to the hydrogen storage and supply device, and collecting first pressure data of the hydrogen storage and supply device in real time; controlling the operation of the PEM electrolysis hydrogen production device and the hydrogen storage and supply device according to the first pressure data to obtain the operation status of the equipment; if the operation status of the equipment is that the PEM electrolysis hydrogen production device is in a standby state and the hydrogen storage and supply device is in a hydrogen supply working state, collecting second pressure data of the hydrogen storage and supply device; if the second pressure data is not greater than a third pressure threshold, controlling the PEM electrolysis hydrogen production device to load an electrolysis current to produce hydrogen, and providing hydrogen to the hydrogen storage and supply device. The control method for PEM hydrogen production by electrolysis and hydrogen storage and supply compares and judges the second pressure data collected when the PEM hydrogen production by electrolysis equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state with the third pressure threshold. Only when the second pressure data is not greater than the third pressure threshold, the PEM hydrogen production by electrolysis equipment is controlled to load the electrolysis current to produce hydrogen, and hydrogen is provided to the hydrogen storage and supply equipment, thereby ensuring that the PEM hydrogen production by electrolysis equipment can load the electrolysis current faster, improving the hydrogen production efficiency of the PEM hydrogen production by electrolysis equipment, and ensuring that the PEM hydrogen production by electrolysis equipment will not be oxidized due to excessively low temperature and high current load, thereby improving the service life of the PEM hydrogen production by electrolysis equipment. The method solves the technical problems that the control methods of the existing hydrogen production, hydrogen storage and hydrogen supply control systems have low hydrogen production efficiency and large losses to the hydrogen production equipment, resulting in a short service life of the hydrogen production equipment.

[0061] It should be noted that after the PEM electrolysis hydrogen production equipment produces hydrogen, the hydrogen container of the hydrogen storage and supply equipment can be used for hydrogen storage. The control method of the PEM electrolysis hydrogen production and hydrogen storage and supply controls the hydrogen storage and supply equipment and the PEM electrolysis hydrogen production equipment to automatically operate in linkage, so that the hydrogen supply pressure of the PEM electrolysis hydrogen production and hydrogen storage and supply system is more stable and reliable; the hydrogen storage and supply equipment and the PEM electrolysis hydrogen production equipment can realize one-button start-up automatic control of hydrogen production, hydrogen storage and hydrogen supply; the hydrogen storage and supply equipment and the PEM electrolysis hydrogen production equipment are more integrated and easier to control and operate; at the same time, the stability and safety of the PEM electrolysis hydrogen production equipment are guaranteed.

[0062] In one embodiment of the present application, the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment is controlled according to the first pressure data, and the equipment operation status is obtained, including:

[0063] If the first pressure data is not less than the first pressure threshold and not greater than the second pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to supply hydrogen to the hydrogen storage and supply equipment, and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment. Then, the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state.

[0064] If the first pressure data is greater than the second pressure threshold and not greater than the fourth pressure threshold, the electrolysis current of the PEM electrolysis hydrogen production equipment is controlled to automatically reduce to zero and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0065] If the first pressure data is less than the first pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to provide hydrogen to the hydrogen storage and supply equipment and the hydrogen storage and supply equipment is controlled not to work, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in the hydrogen production working state and the hydrogen storage and supply equipment is in the standby state.

[0066] It should be noted that the first pressure threshold is the minimum allowable hydrogen supply pressure of the hydrogen storage and supply equipment, the second pressure threshold is the upper pressure limit of the hydrogen storage and supply equipment, and the fourth pressure threshold is the pressure limit of the hydrogen storage and supply equipment, wherein the fourth pressure threshold is greater than the second pressure threshold. In this embodiment, the first pressure threshold is preferably selected as 8 bar, the second pressure threshold is preferably selected as 30 bar, and the fourth pressure threshold is preferably selected as 31.5 bar. In other embodiments, the first pressure threshold, the second pressure threshold, the third pressure threshold and the fourth pressure threshold can be set as required.

[0067] In an embodiment of the present application, when the equipment operating state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state, the first pressure data is not less than the first pressure threshold and not greater than the second pressure threshold, indicating that the hydrogen in the hydrogen storage and supply equipment meets the conditions for supplying hydrogen to the hydrogen-using equipment, the hydrogen supply valve of the hydrogen storage and supply equipment is opened, and the hydrogen storage and supply equipment provides hydrogen to the hydrogen-using equipment.

[0068] In an embodiment of the present application, when the equipment operating state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state, the first pressure data is greater than the second pressure threshold and not greater than the fourth pressure threshold, indicating that the amount of hydrogen stored in the hydrogen storage and supply equipment has reached the maximum amount. In order to ensure the safety of the hydrogen storage and supply equipment, it is necessary to control the PEM electrolysis hydrogen production equipment to stop producing hydrogen. The electrolysis current of the PEM electrolysis hydrogen production equipment is controlled to automatically reduce to zero, indicating that the PEM electrolysis hydrogen production equipment has automatically suspended hydrogen production and is in a standby state.

[0069] It should be noted that the control method for PEM electrolysis hydrogen production and hydrogen storage and supply includes: during the continuous hydrogen production process of the PEM electrolysis hydrogen production equipment, when the pressure data collected from the hydrogen storage and supply equipment is greater than the second pressure threshold and not greater than the fourth pressure threshold, the electrolysis current of the PEM electrolysis hydrogen production equipment is controlled to automatically reduce to zero and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment. At this time, the hydrogen storage and supply equipment and the PEM electrolysis hydrogen production equipment are controlled to achieve automatic linkage operation.

[0070] In one embodiment of the present application, the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment is controlled according to the first pressure data, and the equipment operation status is obtained, including: if the first pressure data is greater than the fourth pressure threshold, the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment are controlled to stop working, then the equipment operation status is that the PEM electrolysis hydrogen production equipment is in a fault state and the hydrogen storage and supply equipment is in a shutdown state.

[0071] In one embodiment of the present application, if the PEM electrolysis hydrogen production equipment includes an electrolyzer and a hydrogen purifier connected to the electrolyzer, the control method includes:

[0072] Collect the outlet hydrogen pressure of the electrolyzer and the pressure data of the hydrogen purifier;

[0073] If the outlet hydrogen pressure is greater than the fifth pressure threshold and / or the pressure data is greater than the sixth pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to shut down, and the equipment operating status is that the PEM electrolysis hydrogen production equipment is in a fault state and the hydrogen storage and supply equipment is in a shutdown state.

[0074] It should be noted that the fifth pressure threshold is the hydrogen outlet pressure limit value of the electrolyzer, and the sixth pressure threshold is the pressure limit value of the hydrogen purifier. In this embodiment, the fifth pressure threshold can be selected as 32.5 bar, and the sixth pressure threshold can be selected as 32 bar. In other embodiments, the fifth pressure threshold and the sixth pressure threshold can be set as required. The control method of PEM electrolysis hydrogen production and hydrogen storage and supply performs pressure protection on the PEM electrolysis hydrogen production equipment and hydrogen storage and supply equipment by ensuring that the front-end pressure of the PEM electrolysis hydrogen production and hydrogen storage and supply system is greater than the terminal pressure. Among them, the front-end pressure is the outlet hydrogen pressure of the electrolyzer, and the terminal pressure is the pressure of the hydrogen storage and supply equipment. The outlet hydrogen pressure is greater than the pressure data of the hydrogen purifier, which is greater than the pressure of the hydrogen storage and supply equipment, and is set in a decreasing manner. When the outlet hydrogen pressure of the electrolyzer exceeds the limit value of the hydrogen outlet pressure of the electrolyzer (in this example, the outlet hydrogen pressure of the electrolyzer is greater than 32.5 bar), the pressure of the hydrogen purifier exceeds the limit value of the hydrogen purifier (in this embodiment, the pressure of the hydrogen purifier is greater than 32 bar), and the pressure of the hydrogen storage and supply equipment exceeds the limit value of the hydrogen storage and supply pressure (in this embodiment, the hydrogen storage and supply pressure is greater than 31.5 bar), the control method of the PEM electrolysis hydrogen production and hydrogen storage and supply automatically determines that the pressure of the PEM electrolysis hydrogen production and hydrogen storage and supply system is too high, and the current operation state of the PEM electrolysis hydrogen production and hydrogen storage and supply system cannot be sustained, and the PEM electrolysis hydrogen production equipment and hydrogen storage and supply equipment of the PEM electrolysis hydrogen production and hydrogen storage and supply system are controlled to automatically reduce load and shut down, and the PEM electrolysis hydrogen production equipment enters the fault shutdown process, and displays an alarm message on the upper computer interface. In this way, the PEM electrolysis hydrogen production equipment and hydrogen storage and supply equipment are protected.

[0075] Embodiment 2:

[0076] Figure 4 This is a schematic diagram of the framework of the control device for PEM electrolysis hydrogen production and hydrogen storage and supply described in an embodiment of the present application.

[0077] like Figure 4 As shown, the embodiment of the present application provides a control device for PEM electrolysis hydrogen production and hydrogen storage and supply, which is applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system. The PEM electrolysis hydrogen production and hydrogen storage and supply system includes a PEM electrolysis hydrogen production device and a hydrogen storage and supply device. The control device includes a first data acquisition module 10, a state determination module 20, a second data acquisition module 30, and a judgment control module 40;

[0078] The first data acquisition module 10 is used to control the operation of the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment, and to collect the first pressure data of the hydrogen storage and supply equipment in real time;

[0079] A state determination module 20 is used to control the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation state;

[0080] The second data acquisition module 30 is used to collect the second pressure data of the hydrogen storage and supply equipment according to the equipment operation state that the PEM electrolysis hydrogen production equipment is in the standby state and the hydrogen storage and supply equipment is in the hydrogen supply working state;

[0081] The judgment control module 40 is used to control the PEM electrolysis hydrogen production equipment to load the electrolysis current to produce hydrogen and provide hydrogen to the hydrogen storage and supply equipment according to the second pressure data being not greater than the third pressure threshold.

[0082] In the embodiment of the present application, the state determination module 20 includes a first state determination submodule, a second state determination submodule and a third state determination submodule;

[0083] The first state determination submodule is used to control the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment and control the hydrogen storage and supply equipment to supply hydrogen to the hydrogen-using equipment according to the first pressure data being not less than the first pressure threshold and not greater than the second pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state;

[0084] The second state determination submodule is used to control the electrolysis current of the PEM electrolysis hydrogen production equipment to automatically reduce to zero and control the hydrogen storage and hydrogen supply equipment to supply hydrogen to the hydrogen-using equipment according to the first pressure data being greater than the second pressure threshold and not greater than the fourth pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and hydrogen supply equipment is in a hydrogen supply working state;

[0085] The third state determination submodule is used to control the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment and to control the hydrogen storage and supply equipment to stop working according to the first pressure data being less than the first pressure threshold. The equipment operating state is that the PEM electrolysis hydrogen production equipment is in the hydrogen production working state and the hydrogen storage and supply equipment is in the standby state.

[0086] It should be noted that the content of the module in the device of Example 2 corresponds to the step content of the method in Example 1. The content of the control method of PEM electrolysis hydrogen production and hydrogen storage and supply has been described in Example 1, and the module content of the control device of PEM electrolysis hydrogen production and hydrogen storage and supply will not be described in detail in this embodiment.

[0087] Embodiment three:

[0088] An embodiment of the present application provides a computer-readable storage medium, which is used to store computer instructions. When the computer-readable storage medium is run on a computer, it enables the computer to execute the above-mentioned PEM electrolysis hydrogen production and hydrogen storage and supply control method.

[0089] Embodiment 4:

[0090] Figure 5 A schematic diagram of a terminal device described in an embodiment of the present application.

[0091] like Figure 5 As shown, an embodiment of the present application provides a terminal device, including a processor and a memory;

[0092] A memory, used for storing program codes and transmitting the program codes to a processor;

[0093] The processor is used to execute the above-mentioned PEM electrolysis hydrogen production and hydrogen storage and supply control method according to the instructions in the program code.

[0094] It should be noted that the processor is used to execute the steps in the above-mentioned PEM electrolysis hydrogen production and hydrogen storage and supply control method embodiment according to the instructions in the program code. Alternatively, the processor implements the functions of each module / unit in the above-mentioned system / device embodiment when executing the computer program.

[0095] Exemplarily, the computer program may be divided into one or more modules / units, one or more modules / units are stored in a memory and executed by a processor to complete the present application. One or more modules / units may be a series of computer program instruction segments capable of completing a specific function, and the instruction segments are used to describe the execution process of the computer program in a terminal device.

[0096] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device may include, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that this does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device may also include input and output devices, network access devices, buses, etc.

[0097] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (dSIC), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0098] The memory may be an internal storage unit of the terminal device, such as a hard disk or memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk equipped on the terminal device, a smart memory card (SmdrtMedid Cdrd, SMC), a secure digital (Secure Digitdl, SD) card, a flash memory card (Fldsh Cdrd), etc. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device. The memory is used to store computer programs and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.

[0099] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0100] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0101] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0102] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0103] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Redd-Only Memory), random access memory (RdM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0104] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method for PEM electrolysis hydrogen production and hydrogen storage and supply, applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system, wherein the PEM electrolysis hydrogen production and hydrogen storage and supply system comprises a PEM electrolysis hydrogen production device and a hydrogen storage and supply device, characterized in that: The control method comprises the following steps: Controlling the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment, and collecting first pressure data of the hydrogen storage and supply equipment in real time; Control the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation status; If the operating state of the equipment is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state, collecting the second pressure data of the hydrogen storage and supply equipment; If the second pressure data is not greater than a third pressure threshold, controlling the PEM electrolysis hydrogen production device to load an electrolysis current to produce hydrogen, and providing hydrogen to the hydrogen storage and supply device; Controlling the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation status includes: If the first pressure data is not less than the first pressure threshold and not greater than the second pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to provide hydrogen to the hydrogen storage and supply equipment and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state; If the first pressure data is greater than the second pressure threshold and not greater than the fourth pressure threshold, the electrolysis current of the PEM electrolysis hydrogen production equipment is controlled to automatically reduce to zero and the hydrogen storage and supply equipment is controlled to supply hydrogen to the hydrogen-using equipment, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state; If the first pressure data is less than the first pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to operate to provide hydrogen to the hydrogen storage and supply equipment and the hydrogen storage and supply equipment is controlled not to operate, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a standby state; The first pressure threshold is the minimum allowable hydrogen supply pressure, the second pressure threshold is the upper pressure limit of the hydrogen storage and supply device, and the fourth pressure threshold is the pressure limit of the hydrogen storage and supply device.

2. The method for controlling hydrogen production and hydrogen storage and supply by PEM electrolysis according to claim 1, characterized in that: The operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment is controlled according to the first pressure data, and the equipment operation status is obtained, including: if the first pressure data is greater than the fourth pressure threshold, the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment are controlled to stop working, then the equipment operation status is that the PEM electrolysis hydrogen production equipment is in a fault state and the hydrogen storage and supply equipment is in a shutdown state.

3. The method for controlling hydrogen production and hydrogen storage and supply by PEM electrolysis according to claim 1, characterized in that: If the PEM electrolysis hydrogen production equipment includes an electrolyzer and a hydrogen purifier connected to the electrolyzer, the control method includes: Collecting the outlet hydrogen pressure of the electrolyzer and the pressure data of the hydrogen purifier; If the outlet hydrogen pressure is greater than the fifth pressure threshold and / or the pressure data is greater than the sixth pressure threshold, the PEM electrolysis hydrogen production equipment is controlled to shut down, and the equipment operating state is that the PEM electrolysis hydrogen production equipment is in a fault state and the hydrogen storage and supply equipment is in a shutdown state.

4. The method for controlling hydrogen production and hydrogen storage and supply by PEM electrolysis according to claim 3, characterized in that: The fifth pressure threshold is the hydrogen outlet pressure limit value of the electrolyzer, and the sixth pressure threshold is the hydrogen purifier pressure limit value.

5. A control device for PEM electrolysis hydrogen production and hydrogen storage and supply, applied to a PEM electrolysis hydrogen production and hydrogen storage and supply system, wherein the PEM electrolysis hydrogen production and hydrogen storage and supply system comprises a PEM electrolysis hydrogen production device and a hydrogen storage and supply device, characterized in that: The control device includes a first data acquisition module, a state determination module, a second data acquisition module and a judgment control module; The first data acquisition module is used to control the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment, and to collect the first pressure data of the hydrogen storage and supply equipment in real time; The state determination module is used to control the operation of the PEM electrolysis hydrogen production equipment and the hydrogen storage and supply equipment according to the first pressure data to obtain the equipment operation state; The second data acquisition module is used to collect the second pressure data of the hydrogen storage and supply equipment according to the operating state of the equipment, that is, the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state; The judgment control module is used to control the PEM electrolysis hydrogen production equipment to load electrolysis current to produce hydrogen and provide hydrogen to the hydrogen storage and supply equipment according to the second pressure data being not greater than a third pressure threshold; The state determination module includes a first state determination submodule, a second state determination submodule and a third state determination submodule; The first state determination submodule is used to control the PEM electrolysis hydrogen production equipment to provide hydrogen to the hydrogen storage and supply equipment and control the hydrogen storage and supply equipment to supply hydrogen to the hydrogen-using equipment according to the first pressure data being not less than the first pressure threshold and not greater than the second pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a hydrogen supply working state; The second state determination submodule is used to control the electrolysis current of the PEM electrolysis hydrogen production equipment to automatically reduce to zero and control the hydrogen storage and supply equipment to supply hydrogen to the hydrogen-using equipment according to the first pressure data being greater than the second pressure threshold and not greater than the fourth pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a standby state and the hydrogen storage and supply equipment is in a hydrogen supply working state; The third state determination submodule is used to control the PEM electrolysis hydrogen production equipment to operate to provide hydrogen to the hydrogen storage and supply equipment and control the hydrogen storage and supply equipment not to operate according to the first pressure data being less than the first pressure threshold, then the equipment operation state is that the PEM electrolysis hydrogen production equipment is in a hydrogen production working state and the hydrogen storage and supply equipment is in a standby state; The first pressure threshold is the minimum allowable hydrogen supply pressure, the second pressure threshold is the upper pressure limit of the hydrogen storage and supply device, and the fourth pressure threshold is the pressure limit of the hydrogen storage and supply device.

6. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store computer instructions, and when it is run on a computer, it enables the computer to execute the control method for PEM electrolysis hydrogen production and hydrogen storage and supply as described in any one of claims 1-4.

7. A terminal device, characterized in that: including a processor and a memory; The memory is used to store program codes and transmit the program codes to the processor; The processor is used to execute the control method for PEM electrolysis hydrogen production and hydrogen storage and supply as described in any one of claims 1-4 according to the instructions in the program code.

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