A method for evaluating the efficiency of hydrogen production from wind power

Abstract

The present application discloses a method for evaluating the efficiency of wind power hydrogen production. The hydrogen production equipment is designed, and the obtained series hydrogen production unit can realize the preparation of hydrogen on the one hand, and can realize the evaluation of hydrogen production efficiency during the hydrogen preparation process on the other hand, and then can adjust the hydrogen production process according to the power supply situation of the wind power generator set. While effectively converting electrical energy into the chemical energy of hydrogen, the idling of the series hydrogen production unit during the conversion process is avoided, and the ineffective consumption of electrical energy by the series hydrogen production unit is avoided.

Description

Technical Field

[0001] The present application relates to the field of process control or regulation technology, and in particular to an efficiency evaluation method for wind power hydrogen production. Background Art

[0002] As a clean energy, the development and promotion of wind power technology has attracted much attention. At the same time, wind power also has certain disadvantages. For example, the unstable wind resources make its power generation unstable. This problem is usually solved by equipping wind turbines with energy storage devices. Energy storage devices can convert wind-based electrical energy into chemical energy for storage. Energy storage devices are such as hydrogen production devices.

[0003] On the one hand, it can solve the problem of unstable wind resources. On the other hand, the energy storage device itself will consume wind power during the energy conversion process. The consumed wind power is not converted into chemical energy, which reduces the energy conversion efficiency. In addition, the process of energy conversion will also affect the energy conversion efficiency. Taking the hydrogen production process as an example, if the reaction rate continues to change, it means that the reaction has been in an unstable state. The content of hydrogen produced fluctuates, and the subsequent precipitation process will also have unstable factors, resulting in equipment idling or product precipitation supplementation, etc., which are all invalid resource consumption.

[0004] It can be seen that how to evaluate whether there is ineffective resource consumption and how to reduce this ineffective resource consumption have become issues that need to be urgently addressed. Summary of the invention

[0005] The embodiment of the present application provides a method for evaluating the efficiency of wind power hydrogen production to at least partially solve the above technical problems.

[0006] The present application embodiment adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides an efficiency evaluation method for wind power hydrogen production, the method being based on a series hydrogen production unit; the series hydrogen production unit being used for electrolytic hydrogen production based on wind power generated electricity; the series hydrogen production unit comprising a first hydrogen production device, a second hydrogen production device, a first oxygen content detection device, and a reaction control device; the discharge port of the first hydrogen production device is connected to the feed port of the second hydrogen production device; when the second hydrogen production device is performing a hydrogen production reaction, the material entering the second hydrogen production device from the feed port of the second hydrogen production device circulates in the second hydrogen production device for a specified number of times and then flows out from the discharge port of the second hydrogen production device; the first oxygen content detection device is arranged at the discharge port of the second hydrogen production device; the method is executed by the reaction control device, and the reaction control device is connected to the first oxygen content detection device; the method comprises:

[0008] supplying power to the first hydrogen production device so that the first hydrogen production device performs a hydrogen production reaction;

[0009] When it is detected that the hydrogen production reaction of the first hydrogen production device reaches a preset first reaction rate, if there is surplus electric energy, the surplus electric energy is used to power the second hydrogen production device so that the reaction current of the second hydrogen production device reaches a first current; the first current is the reaction current used by the second hydrogen production device when performing the hydrogen production reaction at the first reaction rate;

[0010] If the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is less than the first oxygen content, it is judged that the hydrogen production efficiency is low; the first oxygen content is the oxygen content of the material processed by the product precipitation device when the product separation equipment separates the product to achieve a preset rated separation efficiency;

[0011] increasing the power supply to the first hydrogen production device to increase the hydrogen production reaction of the first hydrogen production device to a preset second reaction rate;

[0012] If the hydrogen production reaction of the first hydrogen production device does not reach the second reaction rate within a specified time period, the hydrogen production efficiency is judged to be qualified; the specified time period is negatively correlated with the duration of the first hydrogen production device working at the first reaction rate, negatively correlated with the maximum power of the first hydrogen production device, and positively correlated with the difference between the actual reaction temperature of the second hydrogen production device and the rated reaction temperature when the second hydrogen production device reaches the first reaction rate when it is determined that the oxygen content of the material flowing out of its outlet is less than the first oxygen content.

[0013] In an optional embodiment of this specification, the method further includes:

[0014] If the hydrogen production reaction of the first hydrogen production device reaches the second reaction rate within the specified time period, the hydrogen production efficiency is judged to be unqualified;

[0015] The designated number of times is increased, and the increased designated number of times is used to continue evaluating the hydrogen production efficiency.

[0016] In an optional embodiment of the present specification, continuing to evaluate the hydrogen production efficiency includes:

[0017] If the hydrogen production efficiency is still determined to be low based on the increased designated number of times, the reaction efficiency of the hydrogen production reaction of the first hydrogen production device will continue to be improved.

[0018] In an optional embodiment of this specification, the method further includes:

[0019] If the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is not less than the first oxygen content, then a change curve of the actual reaction temperature of the second hydrogen production device is recorded;

[0020] If it is detected that the duration for which the slope of the change curve is in a negative state is greater than a preset duration threshold, the specified number of times is increased.

[0021] In an optional embodiment of this specification, the method further includes:

[0022] After the hydrogen production reaction of the first hydrogen production device is increased to the second reaction rate, if the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is not less than the first oxygen content, then a change curve of the actual reaction temperature of the second hydrogen production device is recorded;

[0023] If it is detected that the slope of the change curve is in a negative state for a time period greater than a preset time period threshold, the hydrogen production reaction of the first hydrogen production device is reduced to the first reaction rate, and the second hydrogen production device is shut down.

[0024] In an optional embodiment of this specification, the method further includes:

[0025] The first hydrogen production device and the second hydrogen production device are both proton exchange membrane electrolysis hydrogen production devices.

[0026] In an optional embodiment of this specification, the method further includes:

[0027] The capacity of the electrolyzer of the second hydrogen production device is greater than the capacity of the electrolyzer of the first hydrogen production device.

[0028] In an optional embodiment of the present specification, the series hydrogen production unit further comprises a second oxygen content detection device disposed at the discharge port of the first hydrogen production device; the first hydrogen production device comprises a plurality of hydrogen production units; the method further comprises:

[0029] The oxygen content of the material flowing out of the outlet of the second hydrogen production device detected by the first oxygen content detection device is used as a reference oxygen content;

[0030] If the reference oxygen content is less than the second oxygen content, and the difference between the oxygen content detected by the second oxygen content detection device and the reference oxygen content is not greater than a preset difference threshold, the second hydrogen production device is shut down, and the discharge port of the first hydrogen production device and the product precipitation equipment are connected; the second oxygen content is less than the first oxygen content; the difference threshold is negatively correlated with the number of the hydrogen production units and negatively correlated with the specified number of times.

[0031] In a second aspect, an embodiment of the present application further provides an efficiency evaluation device for wind power hydrogen production, which is used to implement the method steps described in the first aspect.

[0032] In a third aspect, an embodiment of the present application further provides an electronic device, including:

[0033] Processor; and

[0034] A memory arranged to store computer executable instructions which, when executed, cause the processor to perform the method steps described in the first aspect.

[0035] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores one or more programs. When the one or more programs are executed by an electronic device including multiple applications, the electronic device executes the method steps described in the first aspect.

[0036] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0037] The technical solution in this specification designs hydrogen production equipment, and the obtained series hydrogen production unit can realize the preparation of hydrogen on the one hand, and on the other hand, can realize the evaluation of hydrogen production efficiency during the preparation of hydrogen, and then can adjust the hydrogen production process according to the power supply situation of the wind turbine generator set. While effectively converting electrical energy into the chemical energy of hydrogen, it avoids the idling of the series hydrogen production unit during the conversion process and avoids the ineffective consumption of electrical energy by the series hydrogen production unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0039] Figure 1 A schematic diagram of a process of evaluating the efficiency of wind power hydrogen production provided in an embodiment of this specification;

[0040] Figure 2 It is a schematic diagram of the structure of an electronic device in an embodiment of this specification. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, and this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0042] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0043] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0044] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0045] like Figure 1 As shown, the efficiency evaluation method of wind power hydrogen production in this specification includes the following steps:

[0046] S100: supplying power to the first hydrogen production device.

[0047] The method in this specification is based on a series hydrogen production unit. The series hydrogen production unit is used to produce hydrogen by electrolysis based on the electricity generated by wind power. If all the electricity generated by the wind turbine is used for grid-connected power supply, that is, there is no surplus electricity, then there is no need to implement the technical solution in this specification.

[0048] Oxygen byproduct is also produced during the process of hydrogen production by electrolysis. The series hydrogen production unit includes a first hydrogen production device, a second hydrogen production device, a first oxygen content detection device, and a reaction control device. The discharge port of the first hydrogen production device is connected to the feed port of the second hydrogen production device. That is to say, the material (for example, water) first enters the first hydrogen production device, and after the reaction in the electrolyzer of the first hydrogen production device, the discharged material enters the second hydrogen production device. The flow of the material can be powered by a pump. When the second hydrogen production device is performing a hydrogen production reaction, the material entering the second hydrogen production device from the feed port of the second hydrogen production device circulates in the second hydrogen production device for a specified number of times and then flows out from the discharge port of the second hydrogen production device. The first oxygen content detection device is arranged at the discharge port of the second hydrogen production device; the method is performed by the reaction control device, and the reaction control device is connected to the first oxygen content detection device.

[0049] Since the solubility of oxygen in water is greater than the solubility of hydrogen in water, the method in this specification is based on the detection of oxygen content to reduce errors. There are many control quantities and process parameters involved in the process of hydrogen production. If they are examined one by one, it is more complicated, but in general, it can be concluded that the higher the degree of reaction, the more oxygen dissolved in the material. Exemplarily, if in a water electrolysis reaction, the current reaches the reaction conditions and the temperature reaches the reaction conditions, but the catalyst does not reach the reaction conditions, the reaction cannot be carried out efficiently.

[0050] The function of the first hydrogen production device is to perform a hydrogen production reaction to convert electrical energy into chemical energy.

[0051] In an optional embodiment of the present specification, the first hydrogen production device and the second hydrogen production device are both proton exchange membrane electrolysis hydrogen production devices. The capacity of the electrolyzer of the second hydrogen production device is greater than the capacity of the electrolyzer of the first hydrogen production device. The functions of the first hydrogen production device and the second hydrogen production device are not exactly the same, so the two are designed differently. A smaller electrolyzer capacity is conducive to the stability of reaction conditions, thereby improving energy conversion efficiency. A larger electrolyzer capacity is conducive to reducing the error of the evaluation results. In other words, the "hydrogen production efficiency" in this specification does not mean that the more hydrogen produced, the higher the efficiency; rather, it means improving energy conversion efficiency.

[0052] S102: When it is detected that the hydrogen production reaction of the first hydrogen production device reaches a preset first reaction rate, if there is surplus electric energy, the surplus electric energy is used to supply power to the second hydrogen production device.

[0053] The purpose of the series hydrogen production unit is to consume the excess electricity generated by the wind turbine. As for how much excess is, it is difficult to determine, after all, wind resources are unstable. If the excess is small, a hydrogen production device with a lower total power will be sufficient. If the excess is large, a hydrogen production device with a higher total power will be required. Otherwise, the excess electricity may not be completely consumed, or the excess electricity may not be enough to drive the operation of the hydrogen production device.

[0054] In this specification, the first hydrogen production device is mainly used for hydrogen production, and the second hydrogen production device is mainly used for efficiency evaluation. The efficiency evaluation is performed only on the basis that the hydrogen production demand can be met.

[0055] When performing efficiency evaluation, the reaction current of the second hydrogen production device is made to reach the first current. The first current is the reaction current used by the second hydrogen production device when performing the hydrogen production reaction at the first reaction rate. In the hydrogen production process, the parameters that need to be controlled include not only the current, but also the temperature, current, etc. In this step, the current mainly meets the requirements, and the control of other parameters depends on the amount of remaining electrical energy.

[0056] However, it cannot be directly determined that the hydrogen production efficiency of the second hydrogen production device is necessarily lower than that of the first hydrogen production device, because the materials used in the second hydrogen production device to produce hydrogen have been heated by the first hydrogen production device, and their oxygen content is also higher than that of the original materials. The actual situation is more complicated, and the method in this manual is result-oriented to avoid complicating the problem with too many parameters and factors.

[0057] The hydrogen production process in this specification involves multiple hydrogen production reaction rates. For example, the first reaction rate (smaller) and the second reaction rate (larger). Under the premise of energy saving, the reaction rate and energy consumption are positively correlated to a certain extent. The decrease in reaction rate after reaching the extreme value is not within the scope of this specification. These reaction rates are the reaction rates when the hydrogen production reaction can proceed stably. There are many factors that affect the reaction rate. Optionally, the reaction rates involved in this specification are all detection values ​​to match electrolyzers of different sizes.

[0058] If the power supply is insufficient, it will be difficult for the first hydrogen production device to achieve efficient hydrogen production, and there is no need to supply power to the second hydrogen production device. At this time, only hydrogen is produced without evaluating the efficiency.

[0059] S104: If the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is less than the first oxygen content, it is determined that the hydrogen production efficiency is low.

[0060] If the hydrogen production efficiency is low, indicating that the reaction is incomplete, and after a specified number of cycles, the process parameters need to be adjusted to improve the hydrogen production efficiency.

[0061] The first oxygen content in this specification refers to the oxygen content of the material processed by the product precipitation equipment when the product separation reaches the preset rated separation efficiency. Different product precipitation equipment has different treatment effects, so the first oxygen content is also different, and the first oxygen content can be a measured value. The rated separation efficiency is the separation efficiency under ideal conditions, which is a higher classification efficiency and can be measured experimentally. Since the product precipitation equipment is also powered by a wind turbine, the working efficiency of the product precipitation equipment should also be optimized to effectively realize the rational use of electrical energy.

[0062] In an optional embodiment of the present specification, if the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is not less than the first oxygen content, then the change curve of the actual reaction temperature of the second hydrogen production device is recorded (temperature is a sensitive parameter that changes with the residual electric energy and can be used to a certain extent to characterize the residual electric energy situation); if it is detected that the slope of the change curve is in a negative state for a time period greater than a preset time threshold (indicating that the residual electric energy is reduced, and the time threshold can be an empirical value related to the power of the wind turbine), then the specified number of times is increased to ensure the degree of reaction, and thereby ensure the working efficiency of the product precipitation equipment.

[0063] S106: Increase the power supply to the first hydrogen production device.

[0064] The increased power supply of the first hydrogen production device, that is, improving its power, can be used to adjust its process parameters, such as reaction current, reaction temperature, etc., according to actual conditions, so as to increase the hydrogen production reaction of the first hydrogen production device to a preset second reaction rate, thereby making the electrolysis reaction more complete and more efficient.

[0065] S108: If the hydrogen production reaction of the first hydrogen production device does not reach the second reaction rate within the specified time period, it is determined that the hydrogen production efficiency is qualified.

[0066] The qualified hydrogen production efficiency indicates that the surplus electricity of the wind turbines that cannot be connected to the power grid is fully and efficiently utilized, which is an ideal treatment state for the surplus electricity.

[0067] The adjustment of the reaction rate means that the old steady-state reaction is broken and the new steady-state reaction is established. This process is not achieved overnight and takes time. Failure to reach the second reaction rate indicates that under the current conditions, the power conversion efficiency of the first hydrogen production device has reached its limit.

[0068] The specified time period in this specification is negatively correlated with the length of time the first hydrogen production device operates at the first reaction rate (indicating that the previous steady-state process has been relatively stable, and breaking this steady-state can be achieved by adjusting a single parameter, which takes a short time), negatively correlated with the maximum power of the first hydrogen production device (the higher the efficiency of parameter adjustment, the shorter the time), and positively correlated with the difference between the actual reaction temperature of the second hydrogen production device when it is determined that the oxygen content of the material flowing out of its discharge port is less than the first oxygen content and the rated reaction temperature when it reaches the first reaction rate (the larger the difference, the greater the possibility that the second hydrogen production device has an insufficient reaction, and the relationship with the first hydrogen production device may be smaller, and the specified time period should be extended to give the first hydrogen production device more adjustment time).

[0069] In an optional embodiment of the present specification, if the hydrogen production reaction of the first hydrogen production device reaches the second reaction rate within the specified time period, it indicates that there is still room for improvement in efficiency, and the hydrogen production efficiency is judged to be unqualified. Afterwards, the specified number is increased, and the increased specified number is used to continue to evaluate the hydrogen production efficiency to see whether it is necessary to continue to improve the efficiency of the first electrolyzer. If the hydrogen production efficiency is still judged to be low based on the increased specified number (so that the oxygen content of the material in the electrolyzer of the second hydrogen production device approaches the maximum value under the stable state), the reaction efficiency of the hydrogen production reaction of the first hydrogen production device will continue to be improved.

[0070] The technical solution in this specification designs hydrogen production equipment, and the obtained series hydrogen production unit can realize the preparation of hydrogen on the one hand, and on the other hand, can realize the evaluation of hydrogen production efficiency during the preparation of hydrogen, and then can adjust the hydrogen production process according to the power supply situation of the wind turbine generator set. While effectively converting electrical energy into the chemical energy of hydrogen, it avoids the idling of the series hydrogen production unit during the conversion process and avoids the ineffective consumption of electrical energy by the series hydrogen production unit.

[0071] In an optional embodiment of the present specification, after the hydrogen production reaction of the first hydrogen production device is increased to the second reaction rate, if the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is not less than the first oxygen content, then the change curve of the actual reaction temperature of the second hydrogen production device is recorded.

[0072] If it is detected that the slope of the change curve is in a negative state for a time period greater than a preset time period threshold, the hydrogen production reaction of the first hydrogen production device is reduced to the first reaction rate, and the second hydrogen production device is shut down.

[0073] In a further optional embodiment of the present specification, the series hydrogen production unit further comprises a second oxygen content detection device arranged at the discharge port of the first hydrogen production device; the first hydrogen production device comprises a plurality of hydrogen production units (a hydrogen production unit is the smallest unit capable of realizing a hydrogen production reaction, and different hydrogen production units may be connected in parallel); the method further comprises: using the oxygen content of the material flowing out of the discharge port of the second hydrogen production device detected by the first oxygen content detection device as a reference oxygen content; if the reference oxygen content is less than the second oxygen content, and the oxygen content detected by the second oxygen content detection device is consistent with the reference oxygen content; If the difference in the reference oxygen content is not greater than a preset difference threshold (indicating that the second hydrogen production device is idling for energy conversion and consumes a lot of energy), the second hydrogen production device is shut down, and the discharge port of the first hydrogen production device and the product precipitation equipment are connected; the second oxygen content is less than the first oxygen content; the difference threshold is negatively correlated with the number of hydrogen production units (the more hydrogen production units there are, the higher the hydrogen production efficiency should be, the more obvious the change in oxygen content is, and the easier it is to detect), and is negatively correlated with the specified number of times (when the specified number of times is large, this phenomenon exists, indicating that the second hydrogen production device is obviously idling).

[0074] Figure 2 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present application. Figure 2 At the hardware level, the electronic device includes a processor, and optionally also includes an internal bus, a network interface, and a memory. The memory may include a memory, such as a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. Of course, the electronic device may also include hardware required for other services.

[0075] The processor, network interface and memory can be interconnected through an internal bus, which can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 2 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0076] The memory is used to store the program. Specifically, the program may include a program code, and the program code includes a computer operation instruction. The memory may include a memory and a non-volatile memory, and provides instructions and data to the processor.

[0077] The processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it, forming an efficiency evaluation device for wind power hydrogen production at the logical level. The processor executes the program stored in the memory and is specifically used to execute any of the above-mentioned wind power hydrogen production efficiency evaluation methods.

[0078] The above application Figure 1 The efficiency evaluation method of wind power hydrogen production disclosed in the illustrated embodiment can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The above processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in a decoding processor. The software module can be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0079] The electronic device may also perform Figure 1 An efficiency evaluation method for wind power hydrogen production is proposed and implemented Figure 1 The functions of the illustrated embodiment will not be described in detail in the embodiments of the present application.

[0080] An embodiment of the present application also proposes a computer-readable storage medium, which stores one or more programs, and the one or more programs include instructions. When the instructions are executed by an electronic device including multiple application programs, any of the aforementioned wind power hydrogen production efficiency evaluation methods is executed.

[0081] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0082] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0083] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0084] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0085] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0086] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0087] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0088] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0089] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0090] The above is only the embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A method for evaluating the efficiency of wind power hydrogen production, characterized in that: The method is based on a series hydrogen production unit; the series hydrogen production unit is used to produce hydrogen by electrolysis based on electric energy generated by wind power; the series hydrogen production unit comprises a first hydrogen production device, a second hydrogen production device, a first oxygen content detection device, and a reaction control device; the discharge port of the first hydrogen production device is connected to the feed port of the second hydrogen production device; when the second hydrogen production device is performing a hydrogen production reaction, the material entering the second hydrogen production device through the feed port of the second hydrogen production device circulates in the second hydrogen production device for a specified number of times and then flows out through the discharge port of the second hydrogen production device; the first oxygen content detection device is arranged at the discharge port of the second hydrogen production device; The method is performed by the reaction control device, which is connected to the first oxygen content detection device; the method comprises: supplying power to the first hydrogen production device so that the first hydrogen production device performs a hydrogen production reaction; When it is detected that the hydrogen production reaction of the first hydrogen production device reaches a preset first reaction rate, if there is surplus electric energy, the surplus electric energy is used to power the second hydrogen production device so that the reaction current of the second hydrogen production device reaches a first current; the first current is the reaction current used by the second hydrogen production device when performing the hydrogen production reaction at the first reaction rate; If the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is less than the first oxygen content, it is judged that the hydrogen production efficiency is low; the first oxygen content is the oxygen content of the material processed by the product precipitation device when the product separation equipment separates the product to achieve a preset rated separation efficiency; increasing the power supply to the first hydrogen production device to increase the hydrogen production reaction of the first hydrogen production device to a preset second reaction rate; If the hydrogen production reaction of the first hydrogen production device does not reach the second reaction rate within a specified time period, the hydrogen production efficiency is judged to be qualified; the specified time period is negatively correlated with the duration of the first hydrogen production device working at the first reaction rate, negatively correlated with the maximum power of the first hydrogen production device, and positively correlated with the difference between the actual reaction temperature of the second hydrogen production device and the rated reaction temperature when the second hydrogen production device reaches the first reaction rate when it is determined that the oxygen content of the material flowing out of its outlet is less than the first oxygen content.

2. The method according to claim 1, characterized in that: The method further comprises: If the hydrogen production reaction of the first hydrogen production device reaches the second reaction rate within the specified time period, the hydrogen production efficiency is judged to be unqualified; The designated number of times is increased, and the increased designated number of times is used to continue evaluating the hydrogen production efficiency.

3. The method according to claim 2, characterized in that: Continue to evaluate hydrogen production efficiency, including: If the hydrogen production efficiency is still determined to be low based on the increased designated number of times, the reaction efficiency of the hydrogen production reaction of the first hydrogen production device will continue to be improved.

4. The method according to claim 1, characterized in that: The method further comprises: If the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is not less than the first oxygen content, then a change curve of the actual reaction temperature of the second hydrogen production device is recorded; If it is detected that the duration for which the slope of the change curve is in a negative state is greater than a preset duration threshold, the specified number of times is increased.

5. The method according to claim 2, characterized in that: The method further comprises: After the hydrogen production reaction of the first hydrogen production device is increased to the second reaction rate, if the first oxygen content detection device detects that the oxygen content of the material flowing out of the discharge port of the second hydrogen production device is not less than the first oxygen content, then a change curve of the actual reaction temperature of the second hydrogen production device is recorded; If it is detected that the slope of the change curve is in a negative state for a time period greater than a preset time period threshold, the hydrogen production reaction of the first hydrogen production device is reduced to the first reaction rate, and the second hydrogen production device is shut down.

6. The method according to claim 1, characterized in that: The method further comprises: The first hydrogen production device and the second hydrogen production device are both proton exchange membrane electrolysis hydrogen production devices.

7. The method according to claim 1, characterized in that: The method further comprises: The capacity of the electrolyzer of the second hydrogen production device is greater than the capacity of the electrolyzer of the first hydrogen production device.

8. The method according to claim 1, characterized in that: The series hydrogen production unit further comprises a second oxygen content detection device disposed at the discharge port of the first hydrogen production device; the first hydrogen production device comprises a plurality of hydrogen production units; the method further comprises: The oxygen content of the material flowing out of the outlet of the second hydrogen production device detected by the first oxygen content detection device is used as a reference oxygen content; If the reference oxygen content is less than the second oxygen content, and the difference between the oxygen content detected by the second oxygen content detection device and the reference oxygen content is not greater than a preset difference threshold, the second hydrogen production device is shut down, and the discharge port of the first hydrogen production device and the product precipitation equipment are connected; the second oxygen content is less than the first oxygen content; the difference threshold is negatively correlated with the number of the hydrogen production units and negatively correlated with the specified number of times.

9. An electronic device, comprising: processor; as well as A memory arranged to store computer executable instructions, which when executed cause the processor to perform the method of any one of claims 1 to 8.

10. A computer-readable storage medium storing one or more programs, which, when executed by an electronic device including a plurality of application programs, causes the electronic device to execute any one of the methods of claims 1 to 8.

Images