CN117004973A - Island hydrogen production system, method and device based on cooperative operation of multiple types of electrolytic tanks - Google Patents

Island hydrogen production system, method and device based on cooperative operation of multiple types of electrolytic tanks Download PDF

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Publication number
CN117004973A
CN117004973A CN202310815432.7A CN202310815432A CN117004973A CN 117004973 A CN117004973 A CN 117004973A CN 202310815432 A CN202310815432 A CN 202310815432A CN 117004973 A CN117004973 A CN 117004973A
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China
Prior art keywords
power
objective function
electric power
exchange membrane
proton exchange
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CN202310815432.7A
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Inventor
田培根
于彬彬
孙凯
肖曦
西绕甲措
徐艳
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China Academy Of Ocean Engineering Qingdao
Tsinghua University
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China Academy Of Ocean Engineering Qingdao
Tsinghua University
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Priority to CN202310815432.7A priority Critical patent/CN117004973A/en
Publication of CN117004973A publication Critical patent/CN117004973A/en
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70—Assemblies comprising two or more cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/67—Heating or cooling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/19—Combinations of wind motors with apparatus storing energy storing chemical energy, e.g. using electrolysis
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H02S10/12—Hybrid wind-PV energy systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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Abstract

The application provides a sea island hydrogen production system, a method and a device based on the cooperative operation of multiple types of electrolytic tanks, wherein a proton exchange membrane electrolytic tank is arranged in the sea island hydrogen production system, the wide power input characteristic of the proton exchange membrane electrolytic tank is utilized, the system is easy to combine with the large fluctuation power dissipation of renewable energy source output, electric energy with larger power fluctuation range generated by renewable energy source power generation equipment can be used for hydrogen production, an energy storage battery is not required to be used on an unattended sea island for smoothing the power fluctuation, the defects of safety accidents of the energy storage battery in severe environments and huge impact on service life are avoided, and the stability of the sea island hydrogen production system is improved.

Description

Island hydrogen production system, method and device based on cooperative operation of multiple types of electrolytic tanks
Technical Field
The application relates to the technical field of hydrogen production, in particular to a sea island hydrogen production system, method and device based on cooperative operation of multiple types of electrolytic tanks.
Background
At present, the island hydrogen production system utilizes the arranged energy storage battery to process the electric energy generated by renewable energy (such as wind energy, wave energy and solar energy) power generation equipment arranged on the island hydrogen production system, and then sends the processed electric energy to an electrolytic tank for electrolysis to obtain hydrogen energy. Therefore, the energy storage battery is utilized to carry out smooth treatment on the electric energy with larger fluctuation, which is generated by the renewable energy power generation equipment, so that the damage of the electric energy generated by the renewable energy power generation equipment to the electrolytic tank is reduced, but the island hydrogen production system is often in an unattended state, the explosion of the energy storage battery is easily caused by the unstable internal property of the energy storage battery, and if the energy storage battery explodes, the island hydrogen production system cannot be used, so that the stability of the island hydrogen production system is seriously influenced.
Disclosure of Invention
In order to solve the problems, the embodiment of the application aims to provide a sea-island hydrogen production system, a sea-island hydrogen production method and a sea-island hydrogen production device based on cooperative operation of multiple types of electrolytic tanks.
In a first aspect, an embodiment of the present application provides an island in sea hydrogen production system based on cooperative operation of multiple types of electrolytic cells, including: renewable energy power generation equipment, an alkaline electrolytic tank, a proton exchange membrane electrolytic tank, a hydrogen storage device and a remote server;
the renewable energy power generation equipment is respectively connected with the alkaline electrolytic tank and the proton exchange membrane electrolytic tank, and the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are also respectively connected with the hydrogen storage device;
the renewable energy power generation equipment, the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are also respectively connected with the remote server;
the remote server is used for determining first electric power for inputting electric quantity to the alkaline electrolytic tank and second electric power for inputting electric quantity to the proton exchange membrane electrolytic tank, controlling the renewable energy power generation equipment to input electric quantity to the alkaline electrolytic tank according to the determined first electric power and controlling the renewable energy power generation equipment to input electric quantity to the proton exchange membrane electrolytic tank according to the determined second electric power;
The renewable energy power generation equipment is used for generating power by using renewable energy, inputting electric quantity to the alkaline electrolyzer according to the first electric power determined by the remote controller, and inputting electric quantity to the proton exchange membrane electrolyzer according to the second electric power determined by the remote controller;
the alkaline electrolyzer is used for electrolyzing water to prepare hydrogen by utilizing the electric quantity input by the renewable energy power generation equipment and conveying the prepared hydrogen to the hydrogen storage device for storage;
the proton exchange membrane electrolyzer is used for electrolyzing water to prepare hydrogen by utilizing the electric quantity input by the renewable energy power generation equipment and conveying the prepared hydrogen to the hydrogen storage device for storage.
In a second aspect, an embodiment of the present application further provides a method for producing hydrogen by island based on cooperative operation of multiple types of electrolytic cells, for executing the functions implemented by the remote server in the first aspect, where the method includes:
establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
determining a first electric power for inputting electric quantity to the alkaline electrolyzer, a second electric power for inputting electric quantity to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, equipment parameters, fluctuation degree of electric energy generated by renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
In a third aspect, the embodiment of the application also provides a sea-island hydrogen production device based on the cooperative operation of multiple types of electrolytic tanks, which comprises:
the establishing module is used for establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
the processing module is used for determining the first electric power for inputting the electric quantity to the alkaline electrolytic cell, the second electric power for inputting the electric quantity to the proton exchange membrane electrolytic cell, the input thermal power and the output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, the equipment parameters, the fluctuation degree of the electric energy generated by the renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
In a fourth aspect, embodiments of the present application also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the second aspect described above.
In a fifth aspect, embodiments of the present application further provide an electronic device, where the electronic device includes a memory, a processor, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor to perform the steps of the method of the second aspect.
In the schemes provided in the first aspect to the fifth aspect of the embodiments of the present application, by arranging the proton exchange membrane electrolyzer in the island hydrogen production system, the wide power input characteristic of the proton exchange membrane electrolyzer is utilized, so that the proton exchange membrane electrolyzer is easy to combine with the large fluctuation power dissipation of renewable energy source output, and can use the electric energy with larger power fluctuation range generated by renewable energy source generating equipment to produce hydrogen, compared with the mode of processing the electric energy generated by renewable energy source generating equipment arranged on the island hydrogen production system by using the energy storage battery in the related art, the power fluctuation is smoothed without using the energy storage battery on the island without management, the defect that the energy storage battery has safety accidents in severe environment and the service life suffers huge impact is avoided, and the stability of the island hydrogen production system is improved; and the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are utilized to carry out combined hydrogen production, and the cost advantage of the alkaline electrolytic tank and the response capability advantage of the proton exchange membrane electrolytic tank are organically combined, so that the aim of high-efficiency and long-service-life hydrogen production of the island hydrogen production system under off-grid conditions can be achieved.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing the structure of an island in sea hydrogen production system based on the cooperative operation of multiple types of electrolytic cells according to embodiment 1 of the present application;
FIG. 2 is a flow chart showing a method for producing hydrogen from islands-in-sea based on the cooperative operation of multiple types of electrolytic cells provided in embodiment 2 of the present application;
FIG. 3 is a schematic diagram showing the structure of an island-in-sea hydrogen production device based on the cooperative operation of multiple types of electrolytic cells according to embodiment 3 of the present application;
fig. 4 shows a schematic structural diagram of an electronic device according to embodiment 4 of the present application.
Detailed Description
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The island resources in China are rich, the island wind energy resources are high in quality, the ocean wave energy can complement the advantages of wind energy, and the industrialization prospect is wide.
Island hydrogen production, namely hydrogen production under off-grid conditions. Under the condition, the lack of a large power grid leads to the outstanding fluctuation and intermittence characteristics of the electric quantity produced by the renewable energy power generation equipment, and the hydrogen production efficiency of the hydrogen production system and the service life of the hydrogen production equipment are seriously influenced. Therefore, the improvement of the structure of the island hydrogen production system makes the island hydrogen production system have important significance in high-efficiency and long-life operation under off-grid conditions.
Based on the scheme, the island hydrogen production system, the island hydrogen production method and the island hydrogen production device based on the cooperative operation of the multiple types of electrolytic tanks are provided, and in the hydrogen production system, an alkaline electrolytic tank is used as main hydrogen production equipment so as to fully exert the advantage of low cost of the alkaline electrolytic tank; however, the alkaline electrolytic cell has long starting time and poor response capability, and the cold starting time is 1-2 hours, so that the situation of renewable energy power generation with outstanding fluctuation and intermittent characteristics cannot be dealt with in time. Therefore, the proton exchange membrane water electrolyzer (proton exchange membrane water electrolyzer) is used as auxiliary hydrogen production equipment, and the advantage of the response capability of the proton exchange membrane water electrolyzer is fully exerted; the cold start time of the proton exchange membrane water electrolyzer is about 20 minutes, and the hot start time can reach the second level, but the proton exchange membrane water electrolyzer has high cost and is not suitable for large-scale deployment. Therefore, the island hydrogen production system based on the cooperative operation of the multiple types of electrolytic tanks organically combines the cost advantage of the alkaline electrolytic tank and the response capability advantage of the proton exchange membrane water electrolytic tank, utilizes the alkaline electrolytic tank to consume the electric quantity generated by most of stable renewable energy sources, and utilizes the proton exchange membrane water electrolytic tank to consume the electric quantity generated by renewable energy sources with larger fluctuation degree, thereby effectively preventing the fluctuation renewable energy sources from seriously damaging the service life of the alkaline electrolytic tank while improving the consumption rate of the renewable energy sources. In addition, the alkaline electrolyzer can generate a large amount of waste heat during normal operation, and the island hydrogen production system based on the cooperative operation of the multiple types of electrolyzers uses the heat storage device to recycle the part of waste heat generated by the alkaline electrolyzer and re-outputs the recycled waste heat to the alkaline electrolyzer when the next working cycle is started, so that the starting of the alkaline electrolyzer can be accelerated, the energy utilization rate is greatly improved, and the island hydrogen production system has the characteristics of environmental protection, energy conservation and environmental protection.
In order that the above-recited objects, features and advantages of the present application will become more apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Example 1
Referring to a schematic structural diagram of an island-in-sea hydrogen production system based on cooperative operation of multiple types of electrolytic cells shown in fig. 1, this embodiment proposes an island-in-sea hydrogen production system based on cooperative operation of multiple types of electrolytic cells, including: renewable energy power generation equipment, alkaline electrolyzer 100, proton exchange membrane electrolyzer 102, hydrogen storage device 104, and a remote server (not shown).
The renewable energy power generation equipment is respectively connected with the alkaline electrolytic tank 100 and the proton exchange membrane electrolytic tank 102, and the alkaline electrolytic tank 100 and the proton exchange membrane electrolytic tank 102 are also respectively connected with the hydrogen storage device 104. The renewable energy power generation equipment, the alkaline electrolytic tank and the proton exchange membrane electrolytic tank 102 are also respectively connected with the remote server.
As shown in fig. 1, a renewable energy power generation apparatus includes: photovoltaic power generation equipment 106, wind power generation equipment 108, and wave power generation equipment 110; the electric quantity generated by the photovoltaic power generation equipment 106 belongs to direct current, the electric quantity generated by the wind power generation equipment 108 and the wave power generation equipment 110 belongs to alternating current, and both types of electrolytic tanks use the direct current to electrolyze water to prepare hydrogen, so that an AC/DC converter and a DC/DC converter are needed as mediums for electric energy conversion, on one hand, the AC/DC converter converts the alternating current generated by the wind power generation equipment 108 and the wave power generation equipment 110 into direct current, and the direct current is respectively transmitted to the alkaline electrolytic tank 100 and the proton exchange membrane electrolytic tank 102 for use after passing through a direct current bus; on the other hand, the DC/DC converter converts the direct current generated by the photovoltaic power generation device 106, and then the direct current is transmitted to the alkaline electrolytic cell 100 and the proton exchange membrane electrolytic cell 102 through the direct current bus, respectively, so as to improve the power quality.
Further, in order to secure the quality of electric power supplied to the alkaline electrolytic cell 100 and the proton exchange membrane electrolytic cell 102, DC/DC converters are provided between the alkaline electrolytic cell 100 and the DC bus and between the proton exchange membrane electrolytic cell 102 and the DC bus, respectively.
The remote server is used for determining first electric power for inputting electric quantity to the alkaline electrolytic tank and second electric power for inputting electric quantity to the proton exchange membrane electrolytic tank, controlling the renewable energy power generation equipment to input electric quantity to the alkaline electrolytic tank according to the determined first electric power and controlling the renewable energy power generation equipment to input electric quantity to the proton exchange membrane electrolytic tank according to the determined second electric power.
The remote server may be any existing cloud server or cloud computing server, which is not described herein.
The renewable energy power generation equipment is used for generating power by using renewable energy, inputting electric quantity to the alkaline electrolyzer according to the first electric power determined by the remote controller, and inputting electric quantity to the proton exchange membrane electrolyzer according to the second electric power determined by the remote controller.
The alkaline electrolyzer 100 is used for electrolyzing water to produce hydrogen by utilizing the electric quantity input by the renewable energy power generation equipment, and delivering the produced hydrogen to the hydrogen storage device for storage.
The proton exchange membrane electrolyzer 102 is used for electrolyzing water to produce hydrogen by utilizing the electric quantity input by the renewable energy power generation equipment, and conveying the produced hydrogen to the hydrogen storage device for storage.
Since the alkaline electrolyzer 100 and the proton exchange membrane electrolyzer 102 produce hydrogen from fresh water, sea water in the islands needs to be desalinated into fresh water and then input into the alkaline electrolyzer 100 and the proton exchange membrane electrolyzer 102 for hydrogen production.
In order to recycle the heat Jin Xiong generated during the hydrogen production of the alkaline electrolytic cell, the island hydrogen production system based on the cooperative operation of the multiple types of electrolytic cells provided by the embodiment further comprises: a heat storage device 112 and a heat exchanger 114. The heat exchanger 114 is disposed between the heat storage device 112 and the alkaline electrolytic tank 100, and the heat storage device 112 is also connected to the remote server.
The remote server is further configured to determine an input thermal power and an output thermal power of the thermal storage device 112;
the heat storage device 112 is configured to recycle heat energy generated when the alkaline electrolyzer 100 produces hydrogen through the heat exchanger 114 according to the input thermal power under the control of the remote server, and to transfer the recycled heat energy to the alkaline electrolyzer 100 through the heat exchanger 114 according to the output thermal power when the alkaline electrolyzer 100 is started, so that the alkaline electrolyzer 100 can quickly reach a temperature required for producing hydrogen.
The island hydrogen production system based on the cooperative operation of multiple types of electrolytic tanks uses the heat storage device 112 to recycle the part of heat generated by the alkaline electrolytic tank 100 and re-outputs the recycled heat to the alkaline electrolytic tank when the next working cycle is started, so that the starting of the alkaline electrolytic tank 100 can be accelerated, the energy utilization rate is greatly improved, and the island hydrogen production system has the characteristics of environmental protection, energy conservation and environmental protection.
Specifically, the remote server is configured to determine a first electric power for inputting electric power to the alkaline electrolyzer, a second electric power for inputting electric power to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device, and includes the following specific steps (1) to (2):
(1) Establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
(2) Determining a first electric power for inputting electric quantity to the alkaline electrolyzer, a second electric power for inputting electric quantity to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, equipment parameters, fluctuation degree of electric energy generated by renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
In the above step (1), the objective function is represented by the following equation 1:
wherein,the hydrogen yield of the alkaline electrolyzer at time t; />The hydrogen yield of the proton exchange membrane electrolyzer at the time t is shown; obj represents the fitness of the objective function.
In order to determine the first electric power to input electric power to the alkaline electrolytic tank 100, the second electric power to input electric power to the proton exchange membrane electrolytic tank 102, the input thermal power and the output thermal power of the heat storage device 114, the above-described step (2) may be performed by the following steps (21) to (25):
(21) Processing the generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of renewable energy generated electric energy by utilizing a genetic algorithm to obtain an initial population, and selecting individuals meeting constraint conditions in the initial population to form a candidate population;
(22) Inputting the candidate individuals in the obtained candidate population into the objective function respectively, and calculating to obtain the objective function fitness of the candidate individuals;
(23) Performing increment calculation on the times of calculating the objective function;
(24) When the number of times of calculating the objective function after the increment calculation does not reach the threshold value of the number of times of calculating the objective function, selecting, intersecting and mutating the candidate individuals in the candidate population by utilizing a genetic algorithm to obtain a new candidate population, and returning to the step of executing the candidate individuals in the obtained candidate population to be respectively input into the objective function, and calculating to obtain the objective function fitness of the candidate individuals;
(25) When the calculated objective function times after the increment calculation reach the objective function calculation times threshold, calculating to obtain first electric power, second electric power, input heat power and output heat power in an individual with the maximum objective function fitness in all candidate individuals as an output plan of system operation, so as to determine the first electric power for inputting electric power to the alkaline electrolytic tank, the second electric power for inputting electric power to the proton exchange membrane electrolytic tank, the input heat power and the output heat power of the heat storage device.
In the step (21), the generated power of the renewable energy power generation device is obtained by predicting the stored historical generated power of the renewable energy power generation device by the remote server, and a specific process of predicting the generated power of the renewable energy power generation device is a prior art and is not described herein.
Here, the generated power of the renewable energy power generation apparatus needs to be equal to or greater than the sum of the first electric power and the second electric power.
The equipment parameters of the alkaline electrolyzer 100, the proton exchange membrane electrolyzer 102 and the heat storage device 112 are each cached in a remote server.
The fluctuation degree of the electric energy generated by the renewable energy source is calculated by using the predicted generated power of the renewable energy source power generation equipment, and the specific process is the prior art and is not repeated here.
The specific process of using genetic algorithm to process the power generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of electric energy generated by renewable energy to obtain initial population is the prior art, and is not described here again.
Specifically, the constraint condition can be expressed by the following formulas 2 to 9:
establishing a scheduling model of each device controlled by a remote server
(1) Alkaline electrolytic cell
The hydrogen production amount of the alkaline electrolytic cell is related to the first electric power, hydrogen production efficiency and cell temperature, i.e., the hydrogen production amount of the alkaline electrolytic cell satisfies the following formula 2 with the first electric power, hydrogen production efficiency and cell temperature:
wherein eta ALK (t)、T ALK (t) shows hydrogen production efficiency, first electric power and internal temperature of the alkaline electrolyzer at time t, respectively.
The alkaline electrolyzer can operate in the range of 30% to 120% of rated power when producing hydrogen, so the first electric power input must satisfy the following equation 3:
wherein,indicating the rated power of the alkaline electrolyzer.
The calculation formula 4 of the internal temperature of the alkaline electrolytic cell is as follows:
wherein a is ALK 、b ALK 、c ALK 、d ALK Respectively representing the temperature maintaining coefficient, the electrothermal conversion coefficient, the heat exchange coefficient and the outdoor temperature coefficient in the alkaline electrolytic cell; q (Q) ALK And (t) represents the heat input to the alkaline electrolytic cell at time t through the heat storage device.
The internal temperature of the alkaline electrolyzer must also meet the constraints of equation 5 below when producing hydrogen:
wherein,and->The minimum allowable temperature and the maximum allowable temperature when the alkaline electrolytic cell is used for hydrogen production are respectively shown.
(2) Proton exchange membrane electrolytic tank
The proton exchange membrane electrolyzer has the advantages of quick starting time and strong response capability, so that the change of the internal temperature is not required to be considered when the scheduling plan of the system is calculated. The hydrogen production amount of the proton exchange membrane electrolyzer is related to the second electric power input and the hydrogen production efficiency, namely the hydrogen production amount of the proton exchange membrane electrolyzer and the second electric power input and the hydrogen production efficiency meet the following formula 6:
wherein eta PEM (t)、Respectively representing the hydrogen production efficiency of the proton exchange membrane electrolytic cell at the time t and the input second electric power.
In the case of hydrogen production, the proton exchange membrane electrolyzer can operate in the range of 5% to 120% of rated power, and therefore the following equation 7 must be satisfied:
Wherein,indicating the rated power of the proton exchange membrane electrolyzer.
(3) Heat storage device
The input and output of the heat storage device at time t (i.e. the input thermal power and the output thermal power described above) should satisfy the following equation 8:
|Q s (t)|≤Q s,rc (8)
wherein Q is s (t) represents the input/output thermal energy of the heat storage device at time t (the negative value represents thermal energy recovery and the positive value represents thermal energy output); q (Q) s,rc Indicating the maximum charge/discharge amount allowed by the heat storage device.
The internal residual heat of the heat storage device at time t is calculated by the following equation 9:
wherein Q is soc (t) represents the internal residual heat of the heat storage device at the time t, h soc And eta s Respectively representing the heat loss coefficient and the heat exchange efficiency of the heat storage device, Q soc,nom Indicating the rated capacity of the heat storage device, end indicating the last moment of the day.
In the step (22), the candidate individuals in the obtained candidate population are respectively input into the objective function, and a specific process of calculating the fitness of the objective function of the candidate individuals is a prior art and is not described herein.
In the step (23), the objective function number is calculated and cached in the remote server.
And performing incremental calculation on the calculated objective function times, namely performing 1-adding operation on the calculated objective function times, so as to obtain the calculated objective function times after incremental calculation.
In the step (24), the objective function calculates the threshold number of times, and the threshold number of times is cached in the remote server.
In one embodiment, the objective function calculation number threshold may be set to 96.
In summary, this embodiment generally proposes a sea island hydrogen production system based on the cooperative operation of multiple types of electrolytic tanks, by arranging a proton exchange membrane electrolytic tank in the sea island hydrogen production system, the wide power input characteristic of the proton exchange membrane electrolytic tank is utilized, the proton exchange membrane electrolytic tank is easy to combine with the large fluctuation power dissipation of renewable energy source output, and electric energy with a larger power fluctuation range generated by renewable energy source generating equipment can be used for producing hydrogen, compared with the mode of processing electric energy generated by renewable energy source generating equipment arranged on the sea island hydrogen production system by using an energy storage battery in the related art, the power fluctuation is smoothed without using the energy storage battery on an unattended sea island, the defect that the energy storage battery has a safety accident in a severe environment and the service life suffers from huge impact is avoided, and the stability of the sea island hydrogen production system is improved; and the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are utilized to carry out combined hydrogen production, and the cost advantage of the alkaline electrolytic tank and the response capability advantage of the proton exchange membrane electrolytic tank are organically combined, so that the aim of high-efficiency and long-service-life hydrogen production of the island hydrogen production system under off-grid conditions can be achieved.
Example 2
Referring to a flowchart of an island-in-sea hydrogen production method based on cooperative operation of multiple types of electrolytic cells shown in fig. 2, this embodiment proposes an island-in-sea hydrogen production method based on cooperative operation of multiple types of electrolytic cells for performing the functions implemented by the remote server described in the above embodiment 1, the method comprising the following specific steps:
step 200, establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic tank and the proton exchange membrane electrolytic tank.
Step 202, determining a first electric power for inputting electric power to the alkaline electrolyzer, a second electric power for inputting electric power to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, equipment parameters, fluctuation degree of electric energy generated by renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
Specifically, in order to determine the first electric power to input electric power to the alkaline electrolyzer, the second electric power to input electric power to the proton exchange membrane electrolyzer, the input thermal power and the output thermal power of the heat storage device based on the generated power of the renewable energy power generation apparatus, the apparatus parameters, the fluctuation degree of renewable energy generation electric energy, and the established objective function, step 202 may perform the following steps (1) to (5):
(1) Processing the generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of renewable energy generated electric energy by utilizing a genetic algorithm to obtain an initial population, and selecting individuals meeting constraint conditions in the initial population to form a candidate population;
(2) Inputting the candidate individuals in the obtained candidate population into the objective function respectively, and calculating to obtain the objective function fitness of the candidate individuals;
(3) Performing increment calculation on the times of calculating the objective function;
(4) When the calculated objective function times after the increment calculation do not reach the objective function calculation times threshold, selecting, crossing and mutating candidate individuals in the candidate population by utilizing a genetic algorithm to obtain a new candidate population, and returning to execute the step (2);
(5) When the calculated objective function times after the increment calculation reach the objective function calculation times threshold, calculating to obtain first electric power, second electric power, input heat power and output heat power in an individual with the maximum objective function fitness in all candidate individuals as an output plan of system operation, so as to determine the first electric power for inputting electric power to the alkaline electrolytic tank, the second electric power for inputting electric power to the proton exchange membrane electrolytic tank, the input heat power and the output heat power of the heat storage device.
In summary, this embodiment generally proposes a sea island hydrogen production method based on the cooperative operation of multiple types of electrolytic tanks, by setting a proton exchange membrane electrolytic tank in a sea island hydrogen production system, the wide power input characteristic of the proton exchange membrane electrolytic tank is utilized, the method is easy to combine with the large fluctuation power dissipation of renewable energy source output, and can use the electric energy with larger power fluctuation range generated by renewable energy source generating equipment to produce hydrogen, compared with the mode of processing the electric energy generated by renewable energy source generating equipment set on the sea island hydrogen production system by using an energy storage battery in the related art, the method does not need to use the energy storage battery on an unattended sea island to smooth the power fluctuation, avoids the defects of occurrence of safety accidents of the energy storage battery in a severe environment and huge impact on the service life, and improves the stability of the sea island hydrogen production system; and the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are utilized to carry out combined hydrogen production, and the cost advantage of the alkaline electrolytic tank and the response capability advantage of the proton exchange membrane electrolytic tank are organically combined, so that the aim of high-efficiency and long-service-life hydrogen production of the island hydrogen production system under off-grid conditions can be achieved.
Example 3
The island-in-sea hydrogen production device based on the cooperative operation of the multiple types of electrolytic cells provided by the embodiment is used for executing the island-in-sea hydrogen production method based on the cooperative operation of the multiple types of electrolytic cells in the embodiment 2.
Referring to a schematic structural diagram of an island-in-sea hydrogen production device based on cooperative operation of multiple types of electrolytic cells shown in fig. 3, this embodiment proposes an island-in-sea hydrogen production device based on cooperative operation of multiple types of electrolytic cells, including:
a building module 300 for maximally building an objective function according to hydrogen production amounts of the alkaline electrolyzer and the proton exchange membrane electrolyzer;
a processing module 302, configured to determine, based on the generated power of the renewable energy power generation device, the device parameter, the fluctuation degree of the electric energy generated by the renewable energy source, and the established objective function, a first electric power for inputting electric power to the alkaline electrolyzer, a second electric power for inputting electric power to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
Specifically, the processing module 302 is specifically configured to:
processing the generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of renewable energy generated electric energy by utilizing a genetic algorithm to obtain an initial population, and selecting individuals meeting constraint conditions in the initial population to form a candidate population;
inputting the candidate individuals in the obtained candidate population into the objective function respectively, and calculating to obtain the objective function fitness of the candidate individuals;
performing increment calculation on the times of calculating the objective function;
when the number of times of calculating the objective function after the increment calculation does not reach the threshold value of the number of times of calculating the objective function, selecting, intersecting and mutating the candidate individuals in the candidate population by utilizing a genetic algorithm to obtain a new candidate population, and returning to the step of executing the candidate individuals in the obtained candidate population to be respectively input into the objective function, and calculating to obtain the objective function fitness of the candidate individuals;
when the calculated objective function times after the increment calculation reach the objective function calculation times threshold, calculating to obtain first electric power, second electric power, input heat power and output heat power in an individual with the maximum objective function fitness in all candidate individuals as an output plan of system operation, so as to determine the first electric power for inputting electric power to the alkaline electrolytic tank, the second electric power for inputting electric power to the proton exchange membrane electrolytic tank, the input heat power and the output heat power of the heat storage device.
In summary, the island hydrogen production device based on the cooperative operation of multiple types of electrolytic tanks is provided in the system for island hydrogen production, the wide power input characteristic of the proton exchange membrane electrolytic tank is utilized to be combined with the large fluctuation power dissipation of renewable energy source output, and the electric energy with larger power fluctuation range generated by renewable energy source power generation equipment can be used for hydrogen production, so that compared with the mode of processing the electric energy generated by the renewable energy source power generation equipment arranged on the island hydrogen production system by using the energy storage battery in the related art, the power fluctuation is smoothed without using the energy storage battery on the island without unmanned management, thereby avoiding the defects of safety accidents of the energy storage battery in severe environments and huge impact on service life; and the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are utilized to carry out combined hydrogen production, and the cost advantage of the alkaline electrolytic tank and the response capability advantage of the proton exchange membrane electrolytic tank are organically combined, so that the aim of high-efficiency and long-service-life hydrogen production of the island hydrogen production system under off-grid conditions can be achieved.
This embodiment proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the island-in-sea hydrogen production method based on the cooperative operation of multiple types of electrolytic cells described in embodiment 2 above. The specific implementation can be referred to method embodiment 2, and will not be described herein.
In addition, referring to the schematic structural diagram of an electronic device shown in fig. 4, the present embodiment also proposes an electronic device including a bus 51, a processor 52, a transceiver 53, a bus interface 54, a memory 55, and a user interface 56. The electronic device includes a memory 55.
In this embodiment, the electronic device further includes: one or more programs stored on memory 55 and executable on processor 52, configured to be executed by the processor for performing steps (1) through (2) below:
(1) Establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
(2) Determining a first electric power for inputting electric quantity to the alkaline electrolyzer, a second electric power for inputting electric quantity to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, equipment parameters, fluctuation degree of electric energy generated by renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
A transceiver 53 for receiving and transmitting data under the control of the processor 52.
Where bus architecture (represented by bus 51), bus 51 may comprise any number of interconnected buses and bridges, with bus 51 linking together various circuits, including one or more processors, represented by processor 52, and memory, represented by memory 55. The bus 51 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art, and therefore, will not be described further in connection with this embodiment. Bus interface 54 provides an interface between bus 51 and transceiver 53. The transceiver 53 may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. For example: the transceiver 53 receives external data from other devices. The transceiver 53 is used to transmit the data processed by the processor 52 to other devices. Depending on the nature of the computing system, a user interface 56 may also be provided, such as a keypad, display, speaker, microphone, joystick.
The processor 52 is responsible for managing the bus 51 and general processing, as described above, running the general-purpose operating system 551. And memory 55 may be used to store data used by processor 52 in performing operations.
Alternatively, processor 52 may be, but is not limited to: a central processing unit, a single chip microcomputer, a microprocessor or a programmable logic device.
It will be appreciated that the memory 55 in embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 55 of the system and method described in this embodiment is intended to comprise, without being limited to, these and any other suitable types of memory.
In some implementations, the memory 55 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: operating system 551 and application programs 552.
The operating system 551 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application programs 552 include various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for implementing various application services. A program for implementing the method of the embodiment of the present application may be included in the application program 552.
In summary, this embodiment generally proposes a computer readable storage medium and an electronic device, by setting a proton exchange membrane electrolyzer in an island hydrogen production system, and by using the wide power input characteristic of the proton exchange membrane electrolyzer, the method is easy to combine with the large fluctuation power dissipation of renewable energy source output, and can use the electric energy with a larger power fluctuation range generated by renewable energy source generating equipment to produce hydrogen. And the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are utilized to carry out combined hydrogen production, and the cost advantage of the alkaline electrolytic tank and the response capability advantage of the proton exchange membrane electrolytic tank are organically combined, so that the aim of high-efficiency and long-service-life hydrogen production of the island hydrogen production system under off-grid conditions can be achieved.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. Island hydrogen production system based on cooperation of multiple types of electrolytic cells, characterized by comprising: renewable energy power generation equipment, an alkaline electrolytic tank, a proton exchange membrane electrolytic tank, a hydrogen storage device and a remote server;
the renewable energy power generation equipment is respectively connected with the alkaline electrolytic tank and the proton exchange membrane electrolytic tank, and the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are also respectively connected with the hydrogen storage device;
the renewable energy power generation equipment, the alkaline electrolytic tank and the proton exchange membrane electrolytic tank are also respectively connected with the remote server;
the remote server is used for determining first electric power for inputting electric quantity to the alkaline electrolytic tank and second electric power for inputting electric quantity to the proton exchange membrane electrolytic tank, controlling the renewable energy power generation equipment to input electric quantity to the alkaline electrolytic tank according to the determined first electric power and controlling the renewable energy power generation equipment to input electric quantity to the proton exchange membrane electrolytic tank according to the determined second electric power;
The renewable energy power generation equipment is used for generating power by using renewable energy, inputting electric quantity to the alkaline electrolyzer according to the first electric power determined by the remote controller, and inputting electric quantity to the proton exchange membrane electrolyzer according to the second electric power determined by the remote controller;
the alkaline electrolyzer is used for electrolyzing water to prepare hydrogen by utilizing the electric quantity input by the renewable energy power generation equipment and conveying the prepared hydrogen to the hydrogen storage device for storage;
the proton exchange membrane electrolyzer is used for electrolyzing water to prepare hydrogen by utilizing the electric quantity input by the renewable energy power generation equipment and conveying the prepared hydrogen to the hydrogen storage device for storage.
2. The system of claim 1, further comprising: a heat storage device and a heat exchanger;
the heat exchanger is arranged between the heat storage device and the alkaline electrolytic tank, and the heat storage device is also connected with the remote server;
the remote server is further used for determining the input thermal power and the output thermal power of the heat storage device;
the heat storage device is used for recovering heat energy generated during hydrogen production of the alkaline electrolytic cell through the heat exchanger according to the input thermal power under the control of the remote server, and conveying the recovered heat energy to the alkaline electrolytic cell through the heat exchanger according to the output thermal power when the alkaline electrolytic cell is started, so that the alkaline electrolytic cell can quickly reach the temperature required by hydrogen production.
3. The system of claim 2, wherein the remote server for determining a first electrical power input to the alkaline electrolyzer, a second electrical power input to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the thermal storage device, comprises:
establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
determining a first electric power for inputting electric quantity to the alkaline electrolyzer, a second electric power for inputting electric quantity to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, equipment parameters, fluctuation degree of electric energy generated by renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
4. A system according to claim 3, wherein the remote server is configured to determine a first electric power for inputting electric power to the alkaline electrolyzer, a second electric power for inputting electric power to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation apparatus, the apparatus parameters, the degree of fluctuation of the renewable energy generated electric energy, and the established objective function, comprising:
Processing the generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of renewable energy generated electric energy by utilizing a genetic algorithm to obtain an initial population, and selecting individuals meeting constraint conditions in the initial population to form a candidate population;
inputting the candidate individuals in the obtained candidate population into the objective function respectively, and calculating to obtain the objective function fitness of the candidate individuals;
performing increment calculation on the times of calculating the objective function;
when the number of times of calculating the objective function after the increment calculation does not reach the threshold value of the number of times of calculating the objective function, selecting, intersecting and mutating the candidate individuals in the candidate population by utilizing a genetic algorithm to obtain a new candidate population, and returning to the step of executing the candidate individuals in the obtained candidate population to be respectively input into the objective function, and calculating to obtain the objective function fitness of the candidate individuals;
when the calculated objective function times after the increment calculation reach the objective function calculation times threshold, calculating to obtain first electric power, second electric power, input heat power and output heat power in an individual with the maximum objective function fitness in all candidate individuals as an output plan of system operation, so as to determine the first electric power for inputting electric power to the alkaline electrolytic tank, the second electric power for inputting electric power to the proton exchange membrane electrolytic tank, the input heat power and the output heat power of the heat storage device.
5. A method for producing hydrogen from islands-in-the-sea based on the co-operation of multiple types of electrolyzer, for performing the functions carried out by the remote server according to any of the preceding claims 3 or 4, characterized in that it comprises:
establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
determining a first electric power for inputting electric quantity to the alkaline electrolyzer, a second electric power for inputting electric quantity to the proton exchange membrane electrolyzer, an input thermal power and an output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, equipment parameters, fluctuation degree of electric energy generated by renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
6. The method according to claim 5, wherein the determining of the first electric power of the electric power input to the alkaline electrolyzer, the second electric power of the electric power input to the proton exchange membrane electrolyzer, the input thermal power and the output thermal power of the heat storage device based on the generated power of the renewable energy generation apparatus, the apparatus parameters, the fluctuation degree of the renewable energy generation electric power, and the established objective function includes:
Processing the generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of renewable energy generated electric energy by utilizing a genetic algorithm to obtain an initial population, and selecting individuals meeting constraint conditions in the initial population to form a candidate population;
inputting the candidate individuals in the obtained candidate population into the objective function respectively, and calculating to obtain the objective function fitness of the candidate individuals;
performing increment calculation on the times of calculating the objective function;
when the number of times of calculating the objective function after the increment calculation does not reach the threshold value of the number of times of calculating the objective function, selecting, intersecting and mutating the candidate individuals in the candidate population by utilizing a genetic algorithm to obtain a new candidate population, and returning to the step of executing the candidate individuals in the obtained candidate population to be respectively input into the objective function, and calculating to obtain the objective function fitness of the candidate individuals;
when the calculated objective function times after the increment calculation reach the objective function calculation times threshold, calculating to obtain first electric power, second electric power, input heat power and output heat power in an individual with the maximum objective function fitness in all candidate individuals as an output plan of system operation, so as to determine the first electric power for inputting electric power to the alkaline electrolytic tank, the second electric power for inputting electric power to the proton exchange membrane electrolytic tank, the input heat power and the output heat power of the heat storage device.
7. Island hydrogen plant based on cooperation of multiple types of electrolysis trough, characterized by, include:
the establishing module is used for establishing an objective function according to the maximum hydrogen production amount of the alkaline electrolytic cell and the proton exchange membrane electrolytic cell;
the processing module is used for determining the first electric power for inputting the electric quantity to the alkaline electrolytic cell, the second electric power for inputting the electric quantity to the proton exchange membrane electrolytic cell, the input thermal power and the output thermal power of the heat storage device based on the generated power of the renewable energy power generation equipment, the equipment parameters, the fluctuation degree of the electric energy generated by the renewable energy and the established objective function; wherein the device parameters include: the equipment parameters of the alkaline electrolyzer, the equipment parameters of the proton exchange membrane electrolyzer and the equipment parameters of the heat storage device; the candidate individuals in the candidate population respectively include first electric power, second electric power, input thermal power and output thermal power which are not identical.
8. The apparatus according to claim 7, wherein the processing module is specifically configured to:
processing the generation power of renewable energy power generation equipment, equipment parameters and fluctuation degree of renewable energy generated electric energy by utilizing a genetic algorithm to obtain an initial population, and selecting individuals meeting constraint conditions in the initial population to form a candidate population;
Inputting the candidate individuals in the obtained candidate population into the objective function respectively, and calculating to obtain the objective function fitness of the candidate individuals;
performing increment calculation on the times of calculating the objective function;
when the number of times of calculating the objective function after the increment calculation does not reach the threshold value of the number of times of calculating the objective function, selecting, intersecting and mutating the candidate individuals in the candidate population by utilizing a genetic algorithm to obtain a new candidate population, and returning to the step of executing the candidate individuals in the obtained candidate population to be respectively input into the objective function, and calculating to obtain the objective function fitness of the candidate individuals;
when the calculated objective function times after the increment calculation reach the objective function calculation times threshold, calculating to obtain first electric power, second electric power, input heat power and output heat power in an individual with the maximum objective function fitness in all candidate individuals as an output plan of system operation, so as to determine the first electric power for inputting electric power to the alkaline electrolytic tank, the second electric power for inputting electric power to the proton exchange membrane electrolytic tank, the input heat power and the output heat power of the heat storage device.
9. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the method of the preceding claim 5 or 6.
10. An electronic device comprising a memory, a processor and one or more programs, wherein the one or more programs are stored in the memory and configured to perform the steps of the method of claim 5 or 6 by the processor.
CN202310815432.7A 2023-07-05 2023-07-05 Island hydrogen production system, method and device based on cooperative operation of multiple types of electrolytic tanks Pending CN117004973A (en)

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