Load distribution method, device and system for hydrogen production system

Abstract

The invention relates to a load distribution method, device and system for a hydrogen production system, and the method comprises the steps: obtaining a load power upper limit and a load power lower limit of hydrogen production equipment, and a function of hydrogen production power with respect to hydrogen production efficiency, and obtaining a hydrogen production efficiency lower limit corresponding to the hydrogen production efficiency upper limit and the load power lower limit based on the function; dividing all the hydrogen production equipment into a plurality of scheme libraries according to a mode of sequentially decreasing the number of the equipment, and sequentially increasing the minimum load power lower limits of the hydrogen production equipment in the plurality of scheme libraries; configuring the hydrogen production efficiency of different hydrogen production equipment between the hydrogen production efficiency upper limit and the hydrogen production efficiency lower limit to form a plurality of distribution schemes, and determining the total input power of each distribution scheme and a target scheme under the same total input power; and querying the scheme library according to the sequence of the number of the hydrogen production equipment from large to small until the total input power which is the same as the input power of the hydrogen production system is determined, and starting the hydrogen production equipment according to a target scheme corresponding to the determined total input power.

Description

Technical Field

[0001] The present application relates to the field of hydrogen production, and in particular to a method, device and system for load distribution of a hydrogen production system. Background Art

[0002] Hydrogen energy is a long-term and cross-seasonal energy storage. my country is vigorously developing hydrogen energy, and a large number of wind and solar power hydrogen production projects are emerging. Wind and solar power hydrogen production projects usually mix alkaline water electrolysis hydrogen production equipment and proton exchange membrane water electrolysis hydrogen production equipment. Due to the differences in power, output and other hydrogen production parameters and performance between alkaline water electrolysis hydrogen production equipment and proton exchange membrane water electrolysis hydrogen production equipment, hydrogen production stations need to deal with the problem of load matching between the wind and solar power generation side and the hydrogen manufacturing side.

[0003] To solve the problem of load matching between wind and solar power generation and hydrogen production, the commonly used method is to start a corresponding number of hydrogen production equipment according to the power generation data provided by wind power and photovoltaic power plants. However, changes in power generation data will lead to frequent start and stop of hydrogen production equipment, which will cause damage to hydrogen production equipment, and thus the hydrogen production system cannot operate efficiently. Summary of the invention

[0004] The embodiments of the present application provide a method, device, and system for load distribution of a hydrogen production system, so as to at least solve the problem in the related art that frequent start and stop of hydrogen production equipment may cause damage to the hydrogen production equipment, thereby preventing the hydrogen production system from operating efficiently.

[0005] In a first aspect, the embodiments of the present application provide a method, device, and system for load distribution of a hydrogen production system, including:

[0006] For any hydrogen production equipment, obtain the load power upper limit and load power lower limit of the hydrogen production equipment, and the function of hydrogen production power with respect to hydrogen production efficiency, and obtain the hydrogen production efficiency lower limit corresponding to the hydrogen production efficiency upper limit and the load power lower limit based on the function;

[0007] All hydrogen production equipment is divided into several solution libraries in a decreasing order of the number of equipment, and the minimum load power lower limits of the hydrogen production equipment in the several solution libraries are increased in sequence;

[0008] In any scheme library, between the upper limit and the lower limit of hydrogen production efficiency, the hydrogen production efficiency of different hydrogen production equipment is configured to form several allocation schemes, and the total input power of each allocation scheme and the target scheme under the same total input power are determined;

[0009] The solution library is queried in descending order of the number of hydrogen production equipment until a total input power that is the same as the input power of the hydrogen production system is determined, and the hydrogen production equipment is started according to a target solution corresponding to the determined total input power.

[0010] In one embodiment, between the upper limit of hydrogen production efficiency and the lower limit of hydrogen production efficiency, the hydrogen production efficiency of different hydrogen production equipment is configured to form several allocation schemes, including:

[0011] For the hydrogen production equipment in the solution library, the efficiency of the hydrogen production equipment is configured in order from the smallest to the largest upper limit of hydrogen production efficiency, and hydrogen production equipment with different efficiencies are combined to form several allocation plans.

[0012] In one embodiment, determining the total input power of each allocation scheme and the target scheme under the same total input power includes:

[0013] In any allocation scheme, the hydrogen production efficiency of each hydrogen production device in the allocation scheme is obtained, based on the hydrogen production efficiency, the input power of each hydrogen production device is determined, and the hydrogen production power of each hydrogen production device is obtained according to the function;

[0014] Determine the total input power and overall efficiency of the allocation scheme based on the input power and hydrogen production efficiency;

[0015] According to the total input power, several target schemes are determined. If there are allocation schemes with the same total input power among all allocation schemes, the allocation scheme with the best overall efficiency is taken as the target scheme, where the target scheme includes the mapping relationship between the overall efficiency, the total input power and the power of each hydrogen production equipment.

[0016] In one embodiment, the overall efficiency satisfies the following formula:

[0017]

[0018] Among them, η 整体s is the overall efficiency of s hydrogen production equipment, P i is the input power of the i-th hydrogen production equipment, η i is the hydrogen production efficiency of the i-th hydrogen production equipment.

[0019] In one embodiment, obtaining the load power upper limit and load power lower limit of the hydrogen production equipment, and a function of the hydrogen production power with respect to the hydrogen production efficiency includes:

[0020] According to the operation test of the hydrogen production equipment, the upper limit and lower limit of the load power of the hydrogen production equipment, the hydrogen production efficiency and the hydrogen production power are obtained, and the characteristic curve of the hydrogen production power with respect to the hydrogen production efficiency is obtained;

[0021] Based on the characteristic curve, the function of hydrogen production power on hydrogen production efficiency is fitted; the function satisfies the following configuration:

[0022] P i =f(η i ),

[0023] Among them, P iis the input power of hydrogen production equipment i, η i is the hydrogen production efficiency of hydrogen production equipment i, and f is the function mapping relationship.

[0024] In a second aspect, an embodiment of the present application provides a load distribution device for a hydrogen production system, characterized in that it includes:

[0025] An acquisition module is used to obtain, for any hydrogen production equipment, the upper and lower limits of the load power of the hydrogen production equipment and the function of the hydrogen production power with respect to the hydrogen production efficiency, and obtain the lower limit of the hydrogen production efficiency corresponding to the upper limit of the hydrogen production efficiency and the lower limit of the load power based on the function;

[0026] A division module is used to divide all hydrogen production equipment into a number of solution libraries in a manner that the number of equipment decreases in sequence, and the minimum load power lower limits of the hydrogen production equipment in the several solution libraries increase in sequence;

[0027] A determination module is used to configure the hydrogen production efficiency of different hydrogen production equipment between the upper limit and the lower limit of hydrogen production efficiency in any scheme library to form several allocation schemes, determine the total input power of each allocation scheme, and the target scheme under the same total input power;

[0028] The startup module is used to query the solution library in descending order of the number of hydrogen production equipment to determine the total input power that is the same as the input power of the hydrogen production system, and start the hydrogen production equipment according to the target solution corresponding to the determined total input power.

[0029] In a third aspect, an embodiment of the present application provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method for load distribution of a hydrogen production system as described in the first aspect above is implemented.

[0030] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for load distribution of a hydrogen production system as described in the first aspect above.

[0031] The embodiments of the present application provide a method, device, and system for load distribution in a hydrogen production system, which have at least the following technical effects.

[0032] For any hydrogen production equipment, obtain the upper and lower limits of the load power of the hydrogen production equipment, as well as the function of the hydrogen production power with respect to the hydrogen production efficiency, and obtain the lower limit of the hydrogen production efficiency corresponding to the upper and lower limits of the load power according to the function, and divide all hydrogen production equipment into several scheme libraries in a descending manner in terms of the number of equipment, and the minimum load power lower limits of the hydrogen production equipment in the several scheme libraries are increased in sequence. In any scheme library, and between the upper and lower limits of the hydrogen production efficiency of the hydrogen production equipment, configure the hydrogen production efficiency of different hydrogen production equipment to form several allocation schemes. And determine the total input power of each allocation scheme, as well as the target scheme under the same total input power. Query the scheme library in the order of the number of hydrogen production equipment from large to small until the total input power that is the same as the input power of the hydrogen production system is determined, and start the hydrogen production equipment according to the target scheme corresponding to the total input power.

[0033] In the above manner, the hydrogen production system queries the solution library in descending order based on the number of devices in the solution library, and determines the total input power that is the same as the input power of the hydrogen production system in the solution library, and starts the hydrogen production equipment based on the target solution corresponding to the total input power. In this process, the allocation scheme of a large number of hydrogen production equipment is prioritized, so that the entire hydrogen production system can maximize the use of hydrogen production equipment according to the actual application scenario requirements. Compared with the method of directly starting the hydrogen production equipment by relying on input power in the prior art, the frequent start and stop of the hydrogen production equipment is reduced, thereby improving the operating efficiency of the hydrogen production system.

[0034] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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:

[0036] Figure 1 is a flow chart of a method for distributing loads in a hydrogen production system according to an exemplary embodiment;

[0037] Figure 2 is a flow chart showing a method for obtaining a characteristic curve of hydrogen power with respect to hydrogen production efficiency according to an exemplary embodiment;

[0038] Figure 3 is a flow chart showing the formation of a mapping relationship between hydrogen production efficiency and hydrogen production power according to an exemplary embodiment;

[0039] Figure 4 is a flow chart showing searching for a corresponding allocation solution in a solution library according to another exemplary embodiment;

[0040] Figure 5 is a flow chart of a method for distributing loads in a hydrogen production system according to another exemplary embodiment;

[0041] Figure 6 is a block diagram of a load distribution device for a hydrogen production system according to an exemplary embodiment;

[0042] Figure 7 is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0044] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0045] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0046] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0047] The hydrogen production system is usually composed of a mixture of alkaline water electrolysis hydrogen production equipment and proton exchange membrane water electrolysis hydrogen production equipment or a single component. The electricity sources of the hydrogen production system include wind power generation, photovoltaic power generation and grid electricity.

[0048] In a first aspect, an embodiment of the present application provides a method for distributing loads in a hydrogen production system. Figure 1 is a flow chart of a method for distributing loads in a hydrogen production system according to an exemplary embodiment. Figure 1 As shown, the load distribution method of the hydrogen production system includes:

[0049] Step S101: for any hydrogen production equipment, obtain the load power upper limit and load power lower limit of the hydrogen production equipment, and a function of hydrogen production power with respect to hydrogen production efficiency, and obtain the hydrogen production efficiency lower limit corresponding to the hydrogen production efficiency upper limit and load power lower limit based on the function.

[0050] According to the load test of the hydrogen production equipment, the upper and lower limits of the load power of the hydrogen production equipment, the hydrogen production efficiency and the hydrogen production power are obtained, and the characteristic curve of the hydrogen production power with respect to the hydrogen production efficiency is obtained.

[0051] Conduct operation load tests on all hydrogen production equipment to obtain the upper and lower load power limits for safe operation of each hydrogen production equipment. Conduct variable operating condition operation tests on all hydrogen production equipment to obtain the hydrogen production efficiency and power of the hydrogen production equipment. Based on the obtained hydrogen production efficiency and power, obtain the characteristic curve of hydrogen production power with respect to hydrogen production efficiency.

[0052] In one embodiment, Figure 2 is a flow chart showing a method for obtaining a characteristic curve of hydrogen power with respect to hydrogen production efficiency according to an exemplary embodiment. Figure 2 As shown, according to the hydrogen production method and the specifications of the hydrogen production equipment, load upper limit and load lower limit tests are carried out to determine the upper and lower load limits for the safe operation of the hydrogen production equipment. Within the range of the upper and lower load limits, variable operating condition tests are carried out to obtain the characteristic curve of hydrogen production power with respect to hydrogen production efficiency.

[0053] In one embodiment, the hydrogen production system includes a plurality of alkaline water electrolysis hydrogen production equipment and a plurality of proton exchange membrane water electrolysis hydrogen production equipment, and the load power lower limit of the safe operation of each hydrogen production equipment is obtained through hydrogen load testing. Optionally, the load power lower limit of each hydrogen production equipment includes P ALK1 Lower limit, P ALK2 Lower limit, ..., P ALKM Lower limit, P PEM1 Lower limit, P PEM2 Lower limit, ..., P PEMN Lower limit.

[0054] Based on the characteristic curve, fit the function of hydrogen production power on hydrogen production efficiency. The function satisfies the following configuration:

[0055] P i =f(η i ),

[0056] Among them, P i is the input power of hydrogen production equipment i, η i is the hydrogen production efficiency of hydrogen production equipment i, and f is the function mapping relationship.

[0057] According to the function of hydrogen production power on hydrogen production efficiency, determine the upper limit of hydrogen production efficiency of hydrogen production equipment and the optimal hydrogen production power corresponding to the upper limit of hydrogen production efficiency, as well as the lower limit of hydrogen production efficiency corresponding to the lower limit of load power of hydrogen production equipment. According to the determined upper limit and lower limit of hydrogen production efficiency, based on the preset efficiency change step, determine the hydrogen production power at different hydrogen production efficiencies to form a mapping relationship between hydrogen production efficiency and hydrogen production power. For example, the preset efficiency change step is 5%, the upper limit of hydrogen production efficiency is η1, and the lower limit of hydrogen production efficiency is η2, then determine the hydrogen production power corresponding to each hydrogen production efficiency of 95% η1, 90% η1, ..., η2 to form a mapping relationship between hydrogen production efficiency and hydrogen production power.

[0058] In one embodiment, Figure 3 is a flow chart showing the formation of a mapping relationship between hydrogen production efficiency and hydrogen production power according to an exemplary embodiment. Figure 3 As shown, based on the characteristic curve of hydrogen production power with respect to hydrogen production efficiency, and the function of hydrogen production power with respect to hydrogen production efficiency, the hydrogen production power corresponding to the highest hydrogen production efficiency and the hydrogen production efficiency corresponding to the lower limit of load power are determined according to the function, and on this basis, the hydrogen production power corresponding to different proportions of the highest hydrogen production efficiency and the corresponding range of hydrogen production power are determined.

[0059] Based on the test of the hydrogen production equipment, the lower limit of load power, hydrogen production efficiency and hydrogen production power are obtained, so as to obtain the characteristic curve of the hydrogen production equipment, which provides a foundation for the subsequent allocation based on the operating characteristics of the hydrogen production equipment.

[0060] Step S102: Divide all hydrogen production equipment into a number of solution libraries in a manner that the number of equipment decreases in sequence, and the minimum load power lower limits of the hydrogen production equipment in the several solution libraries increase in sequence.

[0061] All hydrogen production equipment are sorted from small to large according to the load power lower limit, and the hydrogen production equipment with the smallest load power lower limit is removed in turn, so that all hydrogen production equipment are divided into several solution libraries. The number of hydrogen production equipment in each solution library is different, and the minimum load power of the hydrogen production equipment in each solution library increases in turn.

[0062] In one embodiment, there are M alkaline water electrolysis hydrogen production equipment and N proton exchange membrane water electrolysis hydrogen production equipment in the hydrogen production system, and there are a total of M+N hydrogen production equipment. The M+N hydrogen production equipment form a first solution library. Remove the hydrogen production equipment with the smallest load power lower limit among the M+N hydrogen production equipment, and there are M+N-1 hydrogen production equipment remaining, and the M+N-1 hydrogen production equipment forms a second solution library. Remove the hydrogen production equipment with the smallest load power lower limit among the M+N-1 equipment, and there are M+N-2 hydrogen production equipment remaining, and the M+N-2 hydrogen production equipment forms a third solution library, and remove the hydrogen equipment with the smallest load power lower limit in turn until M+N solution libraries are formed.

[0063] According to the number of hydrogen production equipment included in the hydrogen production system, the hydrogen production equipment with the smallest load power lower limit is removed in turn, thereby ensuring that the hydrogen production equipment with large power is retained in the solution library. By making full use of the hydrogen production equipment with large power for hydrogen production, more hydrogen can be obtained in the same time compared with the hydrogen production equipment with small power, thereby improving the hydrogen production efficiency of the hydrogen production system.

[0064] Step S103: In any scheme library, between the upper limit and the lower limit of hydrogen production efficiency, configure the hydrogen production efficiency of different hydrogen production equipment to form several allocation schemes, determine the total input power of each allocation scheme, and the target scheme under the same total input power.

[0065] In any scheme library, all hydrogen production equipment in the scheme library are sorted from small to large according to the upper limit of hydrogen production efficiency, starting from the hydrogen production equipment with the smallest upper limit of hydrogen production efficiency, and the hydrogen production efficiency of the hydrogen production equipment is configured in sequence. The configured hydrogen production efficiency does not exceed the range of the upper limit and the lower limit of the hydrogen production efficiency, so that hydrogen production equipment with different hydrogen production efficiencies are combined until all hydrogen production equipment and hydrogen production efficiencies in the scheme library are combined to form a number of allocation schemes.

[0066] In one embodiment, there are three hydrogen production equipments in a scheme library, and the three hydrogen production equipments are sorted in order from small to large according to the upper limit of hydrogen production efficiency to obtain the first hydrogen production equipment, the second hydrogen production equipment and the third hydrogen production equipment. If the preset efficiency change step is 5%, the upper limit of hydrogen production efficiency is η1, and the lower limit of hydrogen production efficiency is η2, then the first hydrogen production equipment of 95%η1, the second hydrogen production equipment of η1, and the third hydrogen production equipment of η1 form the first allocation scheme, the first hydrogen production equipment of 90%η1, the second hydrogen production equipment of η1, and the third hydrogen production equipment of η1 form the second hydrogen production scheme, ..., the first hydrogen production equipment of η2, the second hydrogen production equipment of 95%η1, and the third hydrogen production equipment of η1 form the Nth allocation scheme, until three hydrogen production equipments with different hydrogen production efficiencies are combined to form several allocation schemes.

[0067] In any allocation scheme, the hydrogen production efficiency of each hydrogen production equipment in the allocation scheme is obtained, based on the hydrogen production efficiency, the input power of each hydrogen production equipment is determined, and the hydrogen production power of each hydrogen production equipment is obtained according to the function.

[0068] In any allocation scheme, based on the hydrogen production efficiency of each hydrogen equipment, the input power of the hydrogen production equipment at each hydrogen production efficiency is determined, and the hydrogen production power at each hydrogen production efficiency in the allocation scheme is determined according to the function of the hydrogen production efficiency with respect to the hydrogen production power.

[0069] According to the input power and hydrogen production efficiency, the total input power and overall efficiency of the allocation scheme are determined. Among them, the overall efficiency satisfies the following formula:

[0070]

[0071] Among them, η 整体s is the overall efficiency of s hydrogen production equipment, P i is the input power of the i-th hydrogen production equipment, η i is the hydrogen production efficiency of the i-th hydrogen production equipment.

[0072] Based on the total input power, the target scheme corresponding to each total input power is determined. If there are allocation schemes with the same total input power among all allocation schemes, then among these allocation schemes with the same total power, the allocation scheme with the best overall efficiency is used as the target scheme, wherein the target scheme includes the mapping relationship between the overall efficiency, the total input power and the power of each hydrogen production equipment.

[0073] Each solution library includes allocation plans for combinations of hydrogen production equipment with different efficiencies, covering all possible power conditions of the hydrogen production equipment during its operation, thereby ensuring that there will be corresponding allocation plans based on the input power of the hydrogen production system in the future, and ensuring that the hydrogen production equipment can operate according to the application scenario.

[0074] Step S104, query the solution library in descending order of the number of hydrogen production equipment until a total input power that is the same as the input power of the hydrogen production system is determined, and start the hydrogen production equipment according to the target solution corresponding to the determined total input power.

[0075] The input power of the hydrogen production system is obtained, and the solution library is queried in the order of the number of hydrogen production equipment from large to small. Among them, the input power of the hydrogen production system comes from the output power of wind power generation, photovoltaic power generation, and power plants in the grid. Since the solution library is formed on the basis of the solution library formed by all hydrogen production equipment, the hydrogen production equipment with the smallest load power lower limit is continuously reduced. The hydrogen production system starts to query from the solution library including all hydrogen production equipment, and in the order of the number of hydrogen production equipment from large to small, the total input power that is the same as the input power of the hydrogen production system is preferentially determined in the solution library with a large number of hydrogen production equipment. If the total input power that is the same as the input power of the hydrogen production system is determined in the solution library with all hydrogen production equipment, then according to the mapping relationship between the overall efficiency, total input power and power of each hydrogen production equipment in the target solution corresponding to the total input power, the corresponding hydrogen production equipment is started, and each hydrogen production equipment is adjusted to the corresponding power. Among them, the started hydrogen production equipment corresponds to different hydrogen production efficiencies.

[0076] In one embodiment, there are M alkaline water electrolysis hydrogen production equipment and N proton exchange membrane water electrolysis hydrogen production equipment in the hydrogen production system, and there are a total of M+N hydrogen production equipment. In the first solution library, there are M+N hydrogen production equipment and several first allocation schemes formed by the combination of M+N hydrogen production equipment, in the second solution library, there are M+N-1 hydrogen production equipment and several second allocation schemes formed by the combination of M+N-1 hydrogen production equipment, ..., in the M+N solution library, there is 1 hydrogen production equipment and several M+N allocation schemes formed by the combination of 1 hydrogen production equipment. After obtaining the input power of the hydrogen production system, it is preferred to search in the first solution library to obtain the total input power that is the same as the input power of the hydrogen production system, and determine the corresponding first allocation scheme according to the total input power. If the total input power that is the same as the input power of the hydrogen production system is not found in the first solution library, it is searched in the second solution library. If the total input power that is the same as the input power of the hydrogen production system is found, the corresponding second allocation scheme is determined according to the total input power, and the search is performed until the total input power that is the same as the input power of the hydrogen production system is found.

[0077] It should be noted that since the allocation plans in the entire plan library cover all possibilities during the operation of the hydrogen production equipment, if no total input power that is the same as the input power of the hydrogen production system is found in the entire plan library, it means that there is an equipment failure in the entire hydrogen production system and the equipment needs to be repaired so that the hydrogen production system can continue to operate.

[0078] In another embodiment, Figure 4 is a flowchart of searching for a corresponding allocation solution in a solution library according to another exemplary embodiment. Figure 4 As shown, if the input power is greater than or equal to the sum of the lower limits of the load powers of all hydrogen production equipment, in solution library 1, that is, in the solution library with all hydrogen production equipment, query the load allocation plan with the highest overall hydrogen production efficiency in solution library 1 under the input power. If the input power is less than or equal to the sum of the lower limits of the load powers of all hydrogen production equipment, priority is given to solution library 2, that is, when there is one less hydrogen production equipment compared to the hydrogen production equipment in solution library 1, query the load allocation plan with the highest overall hydrogen production efficiency in solution library 2 under the input power. Search in different solution libraries in turn until the corresponding matching allocation plan is found.

[0079] In one embodiment, Figure 5 is a flow chart of a method for distributing loads in a hydrogen production system according to another exemplary embodiment. Figure 5 As shown, the hydrogen production equipment determines the corresponding power allocation method according to the respective operating characteristics, determines the power allocation scheme according to the input power of the hydrogen production system, and adjusts the power of each hydrogen production equipment according to the power allocation scheme.

[0080] In summary, the load distribution method of the hydrogen production system provided by the embodiment of the present application determines the solution library according to the number of hydrogen production equipment, determines the possible operating conditions of the hydrogen production equipment in the solution, and obtains the corresponding allocation scheme in the solution library of all hydrogen production equipment according to the input power of hydrogen, and searches for the corresponding allocation scheme in turn according to the number of hydrogen production equipment, and starts the corresponding hydrogen production equipment according to the allocation scheme found, so as to ensure that the hydrogen production equipment in the entire hydrogen production system keeps all hydrogen production equipment in operation first, reduces the frequent start and stop of the hydrogen production equipment, thereby reducing the damage to the hydrogen production equipment, and ensures the reliable operation of the hydrogen production equipment. On the other hand, the solution library includes different numbers of hydrogen production equipment, and each solution library reduces the hydrogen production equipment with the minimum load lower limit in turn, so as to ensure that the hydrogen production power of the hydrogen production equipment in the solution library is large and can produce more hydrogen. The allocation scheme in the solution library is determined based on the operating characteristics of different hydrogen production methods and specifications of the hydrogen production equipment. After the allocation scheme is determined according to the input power, the corresponding hydrogen equipment can be started to operate on the basis of each operating characteristic, thereby improving the operating efficiency of the hydrogen production system.

[0081] In a second aspect, an embodiment of the present application provides a load distribution device for a hydrogen production system. Figure 6 FIG. 1 is a block diagram of a load distribution device for a hydrogen production system according to an exemplary embodiment. Figure 6 As shown, the load distribution device of the hydrogen production system includes: an acquisition module, which is used to obtain the load power upper limit and load power lower limit of the hydrogen production equipment and the function of the hydrogen production power with respect to the hydrogen production efficiency for any one of the hydrogen production equipment, and obtain the hydrogen production efficiency lower limit corresponding to the hydrogen production efficiency upper limit and the load power lower limit based on the function;

[0082] A division module, used to divide all hydrogen production equipment into a number of solution libraries in a manner that the number of equipment decreases in sequence, and the minimum load power lower limits of the hydrogen production equipment in the several solution libraries increase in sequence;

[0083] A determination module, used to configure the hydrogen production efficiency of different hydrogen production equipments to form a plurality of allocation schemes between the upper limit of hydrogen production efficiency and the lower limit of hydrogen production efficiency in any one of the scheme libraries, determine the total input power of each allocation scheme, and the target scheme under the same total input power;

[0084] The startup module is used to query the solution library in order of the number of hydrogen production equipment from large to small, until the total input power that is the same as the input power of the hydrogen production system is determined, and the hydrogen production equipment is started according to the target solution corresponding to the determined total input power.

[0085] In summary, the load distribution device of the hydrogen production system provided in the present application obtains the upper limit and lower limit of the load power of the hydrogen production equipment, as well as the function of the hydrogen production power with respect to the hydrogen production efficiency for any hydrogen production equipment, and obtains the lower limit of the hydrogen production efficiency corresponding to the upper limit of the hydrogen production efficiency and the lower limit of the load power according to the function, and divides all hydrogen production equipment into several scheme libraries in a manner of decreasing the number of equipment, and the minimum load power lower limit of the hydrogen production equipment in the several scheme libraries increases in sequence. In any scheme library, and between the upper limit and lower limit of the hydrogen production efficiency of the hydrogen production equipment, the hydrogen production efficiency of different hydrogen production equipment is configured to form several allocation schemes. And determine the total input power of each allocation scheme, as well as the target scheme under the same total input power. Query the scheme library in the order of the number of hydrogen production equipment from large to small until the total input power that is the same as the input power of the hydrogen production system is determined, and start the hydrogen production equipment according to the target scheme corresponding to the total input power.

[0086] It should be noted that the load distribution device for the hydrogen production system provided in this embodiment is used to implement the above-mentioned implementation mode, and the descriptions that have been made will not be repeated. As used above, the terms "module", "unit", "subunit", etc. can implement a combination of software and / or hardware for a predetermined function. Although the device described in the above embodiment is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0087] In a third aspect, an embodiment of the present application provides an electronic device, Figure 7 FIG. 1 is a block diagram of an electronic device according to an exemplary embodiment. Figure 7 As shown, the electronic device may include a processor 81 and a memory 82 storing computer program instructions.

[0088] Specifically, the processor 81 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0089] Among them, the memory 82 may include a large-capacity memory for data or instructions. By way of example and not limitation, the memory 82 may include a hard disk drive (HDD), a floppy disk drive, a solid-state drive (SSD), a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 82 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 82 may be inside or outside the data processing device. In a specific embodiment, the memory 82 is a non-volatile memory. In a specific embodiment, the memory 82 includes a read-only memory (ROM) and a random access memory (RAM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (Programmable Read-Only Memory, PROM for short), an erasable PROM (Erasable ProgrammableRead-Only Memory, EPROM for short), an electrically erasable PROM (Electrically Erasable ProgrammableRead-Only Memory, EEPROM for short), an electrically alterable ROM (Electrically Alterable Read-Only Memory, EAROM for short) or a flash memory (FLASH) or a combination of two or more of these. Under appropriate circumstances, the RAM can be a static random access memory (SRAM) or a dynamic random access memory (DRAM), wherein the DRAM can be a fast page mode dynamic random access memory (FPMDRAM), an extended data output dynamic random access memory (EDODRAM), a synchronous dynamic random access memory (SDRAM), etc.

[0090] The memory 82 may be used to store or cache various data files required for processing and / or communication, as well as possible computer program instructions executed by the processor 81 .

[0091] The processor 81 implements any one of the hydrogen production system load distribution methods in the above embodiments by reading and executing computer program instructions stored in the memory 82 .

[0092] In one embodiment, the hydrogen production system load distribution device may further include a communication interface 83 and a bus 80. Figure 7 As shown, the processor 81, the memory 82, and the communication interface 83 are connected via a bus 80 and communicate with each other.

[0093] The communication interface 83 is used to implement communication between the modules, devices, units and / or equipment in the embodiment of the present application. The communication port 83 can also implement data communication with other components such as: external devices, image / data acquisition equipment, databases, external storage, and image / data processing workstations.

[0094] The bus 80 includes hardware, software or both, and couples the components of the hydrogen production system load distribution equipment to each other. The bus 80 includes but is not limited to at least one of the following: a data bus, an address bus, a control bus, an expansion bus, and a local bus. By way of example and not limitation, bus 80 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus, or other suitable buses or a combination of two or more of these. Where appropriate, bus 80 may include one or more buses. Although embodiments of the present application describe and illustrate a particular bus, the present application contemplates any suitable bus or interconnect.

[0095] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a program stored thereon, and when the program is executed by a processor, the method for load distribution of a hydrogen production system provided in the first aspect is implemented.

[0096] The readable storage medium may include but is not limited to: a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device or any suitable combination of the above.

[0097] In a possible implementation, the present invention can also be implemented in the form of a program product, which includes a program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps of the hydrogen production system load distribution method provided in the first aspect.

[0098] The program code for executing the present invention may be written in any combination of one or more programming languages, and may be executed entirely on a user device, partially on a user device, as an independent software package, partially on a user device and partially on a remote device, or entirely on a remote device.

[0099] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for distributing load of a hydrogen production system, characterized in that: The hydrogen production system comprises at least one hydrogen production device, including: For any one of the hydrogen production equipment, obtain the load power upper limit and load power lower limit of the hydrogen production equipment, and a function of hydrogen production power with respect to hydrogen production efficiency, and obtain the hydrogen production efficiency lower limit corresponding to the hydrogen production efficiency upper limit and the load power lower limit based on the function; All hydrogen production equipment are divided into a number of solution libraries in a manner that the number of equipment decreases in sequence, and the minimum load power lower limits of the hydrogen production equipment in the several solution libraries increase in sequence; In any of the scheme libraries, between the upper limit of hydrogen production efficiency and the lower limit of hydrogen production efficiency, the hydrogen production efficiencies of different hydrogen production equipment are configured to form a plurality of allocation schemes, and the total input power of each allocation scheme and the target scheme under the same total input power are determined; The solution library is queried in descending order of the number of hydrogen production equipment to determine the total input power that is the same as the input power of the hydrogen production system, and the hydrogen production equipment is started according to the target solution corresponding to the determined total input power.

2. The method for distributing load of a hydrogen production system according to claim 1, characterized in that: The hydrogen production efficiency of different hydrogen production equipments is configured between the upper limit of hydrogen production efficiency and the lower limit of hydrogen production efficiency to form several allocation schemes, including: For the hydrogen production equipment in the solution library, the efficiency of the hydrogen production equipment is configured in order from the smallest to the largest upper limit of hydrogen production efficiency, and hydrogen production equipment with different efficiencies are combined to form several allocation solutions.

3. The method for distributing load of a hydrogen production system according to claim 1, characterized in that: The determining of the total input power of each allocation scheme and the target scheme under the same total input power includes: In any allocation scheme, the hydrogen production efficiency of each hydrogen production device in the allocation scheme is obtained, based on the hydrogen production efficiency, the input power of each hydrogen production device is determined, and the hydrogen production power of each hydrogen production device is obtained according to the function; Determining the total input power and overall efficiency of the allocation scheme according to the input power and the hydrogen production efficiency; According to the total input power, several target schemes are determined. If among all the allocation schemes, there is an allocation scheme with the same total input power, the allocation scheme with the best overall efficiency is used as the target scheme, wherein the target scheme includes a mapping relationship between the overall efficiency, the total input power and the power of each hydrogen production equipment.

4. The method for distributing load of a hydrogen production system according to claim 3, characterized in that: The overall efficiency satisfies the following formula: Among them, η 整体s is the overall efficiency of s hydrogen production equipment, P i is the input power of the i-th hydrogen production equipment, η i is the hydrogen production efficiency of the i-th hydrogen production equipment.

5. The method for distributing load of a hydrogen production system according to claim 1, characterized in that: The obtaining of the load power upper limit and load power lower limit of the hydrogen production equipment, and a function of the hydrogen production power with respect to the hydrogen production efficiency, comprises: According to the operation test of the hydrogen production equipment, the upper limit and the lower limit of the load power, the hydrogen production efficiency and the hydrogen production power of the hydrogen production equipment are obtained, and the characteristic curve of the hydrogen production power and the hydrogen production efficiency is obtained; Based on the characteristic curve, a function of hydrogen production power with respect to hydrogen production efficiency is fitted; the function satisfies the following configuration: P i =f(η i ), Among them, P i is the input power of hydrogen production equipment i, η i is the hydrogen production efficiency of hydrogen production equipment i, and f is the function mapping relationship.

6. A load distribution device for a hydrogen production system, characterized in that: include: An acquisition module is used to obtain, for any one of the hydrogen production equipment, an upper limit and a lower limit of the load power of the hydrogen production equipment, and a function of the hydrogen production power with respect to the hydrogen production efficiency, and obtain, based on the function, a lower limit of the hydrogen production efficiency corresponding to the upper limit of the hydrogen production efficiency and the lower limit of the load power; A division module, used to divide all hydrogen production equipment into a number of solution libraries in a manner that the number of equipment decreases in sequence, and the minimum load power lower limits of the hydrogen production equipment in the several solution libraries increase in sequence; A determination module, used to configure the hydrogen production efficiency of different hydrogen production equipments to form a plurality of allocation schemes between the upper limit of hydrogen production efficiency and the lower limit of hydrogen production efficiency in any one of the scheme libraries, determine the total input power of each allocation scheme, and the target scheme under the same total input power; The startup module is used to query the solution library in order of the number of hydrogen production equipment from large to small, until the total input power that is the same as the input power of the hydrogen production system is determined, and the hydrogen production equipment is started according to the target solution corresponding to the determined total input power.

7. An electronic device, characterized in that: The invention comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the load distribution method for a hydrogen production system as claimed in any one of claims 1 to 5 when executing the computer program.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the load distribution method for a hydrogen production system according to any one of claims 1 to 5 is implemented.

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