Clean low-hydrocarbon full-life-cycle carbon emission calculation method and system based on system dynamics

Abstract

The invention provides a clean low-hydrocarbon full life cycle carbon emission calculation method and system based on system dynamics, and the method comprises the steps: S1, obtaining the parameters of a current clean low-hydrocarbon preparation system, and dividing the parameters into different stages of a full life cycle; s2, establishing a clean low-hydrocarbon full life cycle carbon emission calculation model according to different stages of the divided full life cycle; s3, establishing a system dynamics model from the whole life cycle; s4, dynamic changes of the energy structure and the total hydrogen demand are obtained based on the system dynamics model, and the carbon emission of clean low-carbon hydrogen is calculated through a full-life-cycle carbon emission calculation model. According to the method, more accurate clean low-carbon-hydrogen carbon emission calculation can be realized.

Description

Technical Field

[0001] The present invention belongs to the field of carbon emission calculation of clean low-carbon hydrogen, and specifically relates to a method and system for calculating carbon emissions of clean low-carbon hydrogen over its entire life cycle based on system dynamics. Background Art

[0002] At present, the main sources of hydrogen are still coal, oil and natural gas, but from the perspective of the global energy structure development towards low-carbon and diversified development, hydrogen production by water electrolysis is environmentally friendly and flexible, and can be produced on a large scale using renewable energy. In recent years, my country has been gradually promoting the low-carbon transformation of its energy structure and is actively planning green industries based on low-carbon hydrogen energy. In the transformation of the energy supply system, more accurate hydrogen carbon emission standards and calculation methods are needed. Summary of the invention

[0003] In order to accurately evaluate the carbon emissions of clean and low-carbon hydrogen, the present invention provides a method and system for calculating the carbon emissions of clean and low-carbon hydrogen over its entire life cycle based on system dynamics, considers the indirect carbon emissions of power generation equipment and production equipment, conducts a carbon footprint analysis of the clean and low-carbon hydrogen energy industry over its entire life cycle, and achieves more accurate calculation of the carbon emissions of clean and low-carbon hydrogen.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics includes the following steps:

[0006] S1. Obtain the system parameters for producing clean low-carbon hydrogen and divide the whole life cycle into different stages;

[0007] S2. Establish a carbon emission calculation model for the entire life cycle of clean low-carbon hydrogen based on the different stages of the entire life cycle;

[0008] S3. Establish a system dynamics model based on the entire life cycle;

[0009] S4. Based on the system dynamics model, the dynamic changes of energy structure and total hydrogen demand are obtained, and the carbon emissions of clean and low-carbon hydrogen are calculated using the full life cycle carbon emission calculation model.

[0010] Furthermore, the S1 specifically includes:

[0011] Obtain carbon emission data for energy supply systems, hydrogen production systems, hydrogen storage and transportation systems and their corresponding structures. In order to calculate the carbon emission intensity of hydrogen products throughout their entire life cycle, from raw material acquisition to production and application, consider the indirect carbon emissions from the use of various fuels in the process from hydrogen production to hydrogen refueling stations, including the indirect carbon emissions from the manufacturing and maintenance of related equipment in the energy supply process. The entire life cycle of clean and low-carbon hydrogen is divided into four stages, namely: system construction stage, production and operation stage, hydrogen storage and transportation stage, and waste disposal stage.

[0012] Further, the S2 includes:

[0013] Currently, there are two technical routes for obtaining clean low-carbon hydrogen: hydrogen produced by electrolysis of water using renewable energy and hydrogen produced by fossil energy combined with CCS (carbon capture and storage technology). Normally, hydrogen obtained by electrolysis of water using renewable energy is clean hydrogen, while hydrogen produced by fossil energy (combined with CCS) is low-carbon hydrogen. Using the IPCC (Intergovernmental Panel on Climate Change) standard coefficient, a carbon emission calculation model for the entire life cycle of clean low-carbon hydrogen is established:

[0014] ;

[0015] ;

[0016] In the formula, is the carbon emissions during the system construction phase; Carbon emissions during the production, operation and maintenance phase of the hydrogen production process; Carbon emissions from hydrogen storage and transportation; is the carbon emissions during the waste disposal stage; 1~4 represent the various stages in the whole life cycle. The superscript 1 and superscript 2 represent the two hydrogen production systems of renewable energy water electrolysis and fossil energy hydrogen production respectively.

[0017] Furthermore, the carbon emissions during the system construction phase It can be expressed as:

[0018] ;

[0019] in, Types of materials used to construct the manufacturing phase of the hydrogen production system; The nth hydrogen production system The quality of the material; , Respectively The production and transportation carbon emission coefficients of the materials; For the The distance that materials are transported.

[0020] Furthermore, the carbon emissions during the production operation phase are It can be expressed as:

[0021] ;

[0022] in, The water consumption for producing hydrogen by electrolysis of water; is the carbon emission coefficient of water used for electrolysis; , The first step to produce hydrogen from fossil energy Energy input and corresponding carbon emission coefficient; is the total number of fossil energy types; The proportional coefficient of carbon emissions from the operation and maintenance of water electrolysis hydrogen production equipment; The carbon emission coefficient for the operation and maintenance of hydrogen production from fossil energy.

[0023] Furthermore, the carbon emissions during the hydrogen storage and transportation phase are It is expressed as:

[0024] ;

[0025] in, For the The amount of hydrogen produced by each hydrogen production method; , Respectively represent The average carbon emissions per unit of transportation distance and the average transportation distance of the hydrogen production methods; , Respectively represent Carbon emissions per unit storage time and average storage time of the three hydrogen production methods.

[0026] Furthermore, the carbon emissions during the waste disposal phase are It is expressed as:

[0027] ;

[0028] In the formula, Indicates The average carbon emission ratio coefficient of the waste disposal of the hydrogen production system.

[0029] Furthermore, the S3 specifically includes:

[0030] Since the carbon emissions in the system construction stage and the waste disposal stage are all one-time carbon emissions, the system is divided into three subsystems: production and operation subsystem, storage and transportation subsystem, and construction / recycling subsystem; according to the relationship between the carbon emissions of input energy and output hydrogen in the whole life cycle of the hydrogen production system, appropriate system variables are selected, and a causal loop diagram of carbon emissions is established, and a system dynamics model is established based on the whole life cycle of clean and low-carbon hydrogen;

[0031] Further, choosing appropriate system variables includes:

[0032] For the production and operation subsystem, the options include government policies, energy efficiency, renewable energy consumption ratio, total energy consumption for hydrogen production, carbon emission reduction costs, and total hydrogen demand;

[0033] For the storage and transportation subsystem, the options include average transportation distance, carbon emission coefficients of different transportation modes, total hydrogen demand, total hydrogen transportation volume, carbon emission coefficients of different storage methods, average storage days, etc.;

[0034] For the construction / recycling subsystem, the options include energy industry investment, total output value of hydrogen energy industry, environmental quality, total hydrogen demand, government policy, etc.

[0035] Furthermore, a subsystem carbon emission causal relationship loop diagram is established, including the following three causal relationship loops:

[0036] Loop 1: Government policy → + Energy structure → - Carbon emission reduction cost → + Total hydrogen demand → + Environmental quality → + Government policy; where + represents positive feedback and - represents negative feedback, both of which are symbols of system dynamics.

[0037] Second loop: government policy → + carbon trading → + total hydrogen demand → + storage and transportation time → + carbon emissions → - government policy;

[0038] The third loop: government policy → + total output value of hydrogen energy industry → + total hydrogen demand → + construction industry investment → + carbon emissions → - government policy.

[0039] State variables: energy structure and total hydrogen demand;

[0040] Rate variables: renewable energy share and total hydrogen demand increase;

[0041] Constants: carbon emission coefficients of various materials, energy, etc.;

[0042] Auxiliary variables: storage and transportation time, carbon emissions, total value of hydrogen energy industry, etc.;

[0043] Establish a system dynamics flow chart to further reflect the operating mechanism between the internal elements of the system through rate variables, auxiliary variables and constants;

[0044] Furthermore, the S4 specifically includes:

[0045] Six carbon emission influencing factors, namely government policies, total output value of hydrogen energy industry, carbon trading, environmental quality, carbon emissions and renewable energy power generation, were selected as indicators for scenario setting. Based on the dynamic changes of energy structure and total hydrogen demand under different carbon emission scenarios in the system dynamics model, the dynamically changing energy structure and total hydrogen demand were included in the full life cycle carbon emission calculation model to calculate the carbon emissions of clean and low-carbon hydrogen over its life cycle.

[0046] The carbon emissions of clean low-carbon hydrogen are:

[0047] ;

[0048] in, , The first annual carbon emissions and total demand for clean, low-carbon hydrogen; For clean low-carbon hydrogen Unit carbon emissions per year;

[0049] ;

[0050] in, Indicates Hydrogen production method 1st life cycle stage year's carbon footprint, and so on.

[0051] The present invention also provides a clean low-carbon hydrogen full life cycle carbon emission calculation method system based on system dynamics, including the following modules:

[0052] Data acquisition module, which obtains the system parameters for the current production of clean low-carbon hydrogen and divides the different stages of the entire life cycle of clean low-carbon hydrogen;

[0053] The full life cycle module establishes a carbon emission calculation model for the full life cycle of clean low-carbon hydrogen based on the different stages of the full life cycle;

[0054] System dynamics module, which builds a system dynamics model based on the entire life cycle;

[0055] The carbon emission calculation module obtains the dynamic changes of energy structure and total hydrogen demand based on the system dynamics model, and uses the full life cycle carbon emission calculation model to calculate the carbon emissions of clean and low-carbon hydrogen.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] The present invention proposes a carbon emission calculation model for clean, low-carbon hydrogen based on the entire life cycle, takes indirect carbon emissions into consideration, divides the entire life cycle of clean, low-carbon hydrogen into different stages, and then establishes a carbon emission calculation model for each stage of the entire life cycle of clean, low-carbon hydrogen. By predicting the dynamic changes of the energy structure and the total hydrogen demand under different carbon emission conditions through the system dynamics model, combined with the carbon emission calculation model of the entire life cycle, a more accurate carbon emission calculation method for the entire life cycle of clean, low-carbon hydrogen is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 A flow chart of a method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics in the implementation of the present invention;

[0059] Figure 2 A cause-and-effect loop diagram of a method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics implemented in the present invention;

[0060] Figure 3 This is a system dynamics flow chart of the method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics implemented in the present invention. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.

[0062] like Figure 1 As shown, the method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics implemented by the present invention comprises the following steps:

[0063] S1. Obtain the system parameters for producing clean low-carbon hydrogen and divide the whole life cycle into different stages;

[0064] S2. Establish a carbon emission calculation model for the entire life cycle of clean low-carbon hydrogen based on the different stages of the entire life cycle;

[0065] S3. Establish a system dynamics model based on the entire life cycle;

[0066] S4. Based on the system dynamics model, the dynamic changes of energy structure and total hydrogen demand are obtained, and the carbon emissions of clean and low-carbon hydrogen are calculated using the full life cycle carbon emission calculation model.

[0067] Furthermore, the S1 specifically includes:

[0068] Obtain carbon emission data for energy supply systems, hydrogen production systems, hydrogen storage and transportation systems and their corresponding structures. In order to calculate the carbon emission intensity of hydrogen products throughout their entire life cycle, from raw material acquisition to production and application, consider the indirect carbon emissions from the use of various fuels in the process from hydrogen production to hydrogen refueling stations, including the indirect carbon emissions from the manufacturing and maintenance of related equipment in the energy supply process. The entire life cycle of clean and low-carbon hydrogen is divided into four stages, namely: system construction stage, production and operation stage, hydrogen storage and transportation stage, and waste disposal stage.

[0069] Furthermore, the S2 specifically includes:

[0070] Currently, there are two technical routes for obtaining clean low-carbon hydrogen: hydrogen produced by electrolysis of water using renewable energy and hydrogen produced by fossil energy combined with CCS (carbon capture and storage technology). Usually, hydrogen obtained by electrolysis of water using renewable energy is clean hydrogen, while hydrogen produced by fossil energy (combined with CCS) is low-carbon hydrogen. Using the IPCC standard coefficient, a carbon emission calculation model for the entire life cycle of clean low-carbon hydrogen is established:

[0071] ;

[0072] ;

[0073] In the formula, is the carbon emissions during the system construction phase; Carbon emissions during the production, operation and maintenance phase of the hydrogen production process; Carbon emissions from hydrogen storage and transportation; is the carbon emissions during the waste disposal stage; 1~4 represent the various stages in the whole life cycle. The superscript 1 and superscript 2 represent the two hydrogen production systems of renewable energy water electrolysis and fossil energy hydrogen production respectively.

[0074] Furthermore, the carbon emissions during the system construction phase It can be expressed as:

[0075] ;

[0076] in, Types of materials used to construct the manufacturing phase of the hydrogen production system; The nth hydrogen production system The quality of the material; , Respectively The production and transportation carbon emission coefficients of the materials; For the The distance that materials are transported.

[0077] Furthermore, the carbon emissions during the production operation phase are It can be expressed as:

[0078] ;

[0079] in, The water consumption for producing hydrogen by electrolysis of water; is the carbon emission coefficient of water used for electrolysis; , The first step to produce hydrogen from fossil energy Energy input and corresponding carbon emission coefficient; is the total number of fossil energy types; The proportional coefficient of carbon emissions from the operation and maintenance of water electrolysis hydrogen production equipment; The carbon emission coefficient for the operation and maintenance of hydrogen production from fossil energy.

[0080] Furthermore, the carbon emissions during the hydrogen storage and transportation phase are It is expressed as:

[0081] ;

[0082] in, For the The amount of hydrogen produced by each hydrogen production method; , Respectively represent The average carbon emissions per unit of transportation distance and the average transportation distance of the hydrogen production methods; , Respectively represent Carbon emissions per unit storage time and average storage time of the three hydrogen production methods.

[0083] Furthermore, the carbon emissions during the waste disposal phase are It is expressed as:

[0084] ;

[0085] In the formula, Indicates The average carbon emission ratio coefficient of the waste disposal of the hydrogen production system.

[0086] Furthermore, the S3 specifically includes:

[0087] Since the carbon emissions in the system construction stage and the waste disposal stage are all one-time carbon emissions, the system is divided into three subsystems: production and operation subsystem, storage and transportation subsystem, and construction / recycling subsystem; according to the relationship between the carbon emissions of input energy and output hydrogen in the whole life cycle of the hydrogen production system, appropriate system variables are selected, and a causal loop diagram of carbon emissions is established, and a system dynamics model is established based on the whole life cycle of clean and low-carbon hydrogen;

[0088] Further, select the appropriate system variables:

[0089] For the production and operation subsystem, the options include government policies, energy efficiency, renewable energy consumption ratio, total energy consumption for hydrogen production, carbon emission reduction costs, and total hydrogen demand;

[0090] For the storage and transportation subsystem, the options include average transportation distance, carbon emission coefficients of different transportation modes, total hydrogen demand, total hydrogen transportation volume, carbon emission coefficients of different storage methods, average storage days, etc.;

[0091] For the construction / recycling subsystem, the options include energy industry investment, total output value of hydrogen energy industry, environmental quality, total hydrogen demand, government policy, etc.

[0092] Reference Figure 2 , establish a subsystem carbon emission causal relationship loop diagram, including the following three loops:

[0093] Loop 1: Government policy → + energy structure → - carbon reduction cost → + total hydrogen demand → + environmental quality → + government policy;

[0094] Second loop: government policy → + carbon trading → + total hydrogen demand → + storage and transportation time → + carbon emissions → - government policy;

[0095] The third loop: government policy → + total output value of hydrogen energy industry → + total hydrogen demand → + construction industry investment → + carbon emissions → - government policy.

[0096] State variables: energy structure and total hydrogen demand;

[0097] Rate variables: renewable energy share and total hydrogen demand increase;

[0098] Constants: carbon emission coefficients of various materials, energy, etc.;

[0099] Auxiliary variables: storage and transportation time, carbon emissions, total value of hydrogen energy industry, etc.;

[0100] Establish as Figure 3 The system dynamics flow diagram shown further reflects the operating mechanism between the internal elements of the system through rate variables, auxiliary variables and constants;

[0101] Furthermore, the S4 specifically includes:

[0102] Six carbon emission influencing factors, namely government policies, total output value of hydrogen energy industry, carbon trading, environmental quality, carbon emissions and renewable energy power generation, were selected as indicators for scenario setting. Based on the system dynamics model, the dynamic changes of energy structure and total hydrogen demand under different carbon emission scenarios were predicted, and the dynamically changing energy structure and total hydrogen demand were included in the full life cycle carbon emission calculation model to calculate the carbon emissions of clean and low-carbon hydrogen over its life cycle.

[0103] The carbon emissions of clean low-carbon hydrogen are:

[0104] ;

[0105] in, , The first annual carbon emissions and total demand for clean, low-carbon hydrogen; For clean low-carbon hydrogen Unit carbon emissions per year;

[0106] ;

[0107] in, Indicates Hydrogen production method 1st life cycle stage year's carbon footprint, and so on.

[0108] The present invention also provides a full life cycle clean low carbon hydrogen carbon emission calculation system based on system dynamics, including the following modules:

[0109] Data acquisition module, which obtains the system parameters for the current production of clean low-carbon hydrogen and divides the different stages of the entire life cycle of clean low-carbon hydrogen;

[0110] The full life cycle module establishes a carbon emission calculation model for the full life cycle of clean low-carbon hydrogen based on the different stages of the full life cycle;

[0111] System dynamics module, which builds a system dynamics model based on the entire life cycle;

[0112] The carbon emission calculation module obtains the dynamic changes of energy structure and total hydrogen demand based on the system dynamics model, and uses the full life cycle carbon emission calculation model to calculate the carbon emissions of clean and low-carbon hydrogen.

[0113] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, for executing the computer program to implement the steps of the above-mentioned method for calculating the carbon emissions of clean and low-carbon hydrogen throughout its life cycle based on system dynamics.

[0114] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for calculating the carbon emissions of clean, low-carbon hydrogen throughout its life cycle based on system dynamics.

[0115] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The schemes in the embodiments of the present application may be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0116] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0117] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0118] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0119] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0120] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for calculating carbon emissions from the entire life cycle of clean low-carbon hydrogen based on system dynamics, characterized in that: The steps include: S1. Obtain the system parameters for the current production of clean low-carbon hydrogen and divide the different stages of the entire life cycle of clean low-carbon hydrogen; S2. Establish a carbon emission calculation model for the entire life cycle of clean low-carbon hydrogen based on the different stages of the entire life cycle; S3. Establish a system dynamics model based on the entire life cycle; S4. Based on the system dynamics model, the dynamic changes of energy structure and total hydrogen demand are obtained, and the carbon emissions of clean and low-carbon hydrogen are calculated using the full life cycle carbon emission calculation model.

2. The method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics according to claim 1 is characterized in that: The S1 includes: Obtain carbon emission data for energy supply systems, hydrogen production systems, hydrogen storage and transportation systems and their corresponding structures, consider indirect carbon emissions from the use of various fuels from hydrogen production to hydrogen refueling stations, including indirect carbon emissions from the manufacturing and maintenance of related equipment in the energy supply process, and divide the entire life cycle of clean and low-carbon hydrogen into four stages: system construction stage, production and operation stage, hydrogen storage and transportation stage, and waste disposal stage.

3. The method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics according to claim 1 is characterized in that: The S2 includes: Using IPCC standard coefficients, a carbon emission calculation model for the entire life cycle of clean low-carbon hydrogen is established: ； ； in, To reduce carbon emissions over the life cycle of clean, low-carbon hydrogen; is the carbon emissions during the system construction phase; It is the carbon emission during the production and operation stage of hydrogen production; Carbon emissions from hydrogen storage and transportation; is the carbon emissions during the waste disposal stage; 1 to 4 represent the various stages in the whole life cycle, and the superscript 1 and superscript 2 represent the two hydrogen production systems of renewable energy water electrolysis and fossil energy hydrogen production, respectively; Carbon emissions during the system construction phase It is expressed as: ； in, Types of materials used to construct the manufacturing phase of the hydrogen production system; The nth hydrogen production system The quality of the material; , Respectively The production and transportation carbon emission coefficients of the materials; For the The distances to transport the materials; Carbon emissions during the production and operation phase It is expressed as: ； in, The water consumption for producing hydrogen by electrolysis of water; is the carbon emission coefficient of water used for electrolysis; , The first step to produce hydrogen from fossil energy Energy input and corresponding carbon emission coefficient; is the total number of fossil energy types; The proportional coefficient of carbon emissions from the operation and maintenance of water electrolysis hydrogen production equipment; Carbon emission coefficient for the operation and maintenance of hydrogen production from fossil energy; Carbon emissions from the hydrogen storage and transportation phase It is expressed as: ； in, For the The amount of hydrogen produced by each hydrogen production method; , Respectively represent The average carbon emissions per unit of transportation distance and the average transportation distance of the hydrogen production methods; , Respectively represent Carbon emissions per unit storage time and average storage time of the hydrogen production methods; Carbon emissions from the waste disposal phase It is expressed as: ； In the formula, Indicates The average carbon emission ratio coefficient of the waste disposal of the hydrogen production system.

4. The method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics according to claim 1 is characterized in that: The S3 includes: The system is divided into production and operation subsystem, storage and transportation subsystem, and construction / recycling subsystem. According to the relationship between the carbon emissions of input energy and output hydrogen in the whole life cycle of the hydrogen production system, appropriate system variables are selected to establish a causal loop diagram of carbon emissions, and a system dynamics model is established based on the whole life cycle of clean and low-carbon hydrogen. The selection of appropriate system variables includes: For the production and operation subsystem, the options include government policies, energy efficiency, renewable energy consumption ratio, total energy consumption for hydrogen production, carbon emission reduction costs, and total hydrogen demand; For the storage and transportation subsystem, the options include average transportation distance, carbon emission coefficients of different transportation modes, total hydrogen demand, total hydrogen transportation, carbon emission coefficients of different storage modes, and average storage days; For the construction / recycling subsystem, the options include energy industry investment, total output value of hydrogen energy industry, environmental quality, total hydrogen demand, and government policy.

5. The method for calculating carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics according to claim 1 is characterized in that: The S4 includes: Six carbon emission influencing factors, namely government policies, total output value of hydrogen energy industry, carbon trading, environmental quality, carbon emissions and renewable energy power generation, were selected as indicators for scenario setting. Based on the dynamic changes of energy structure and total hydrogen demand under different carbon emission scenarios in the system dynamics model, the dynamically changing energy structure and total hydrogen demand were included in the full life cycle carbon emission calculation model to calculate the carbon emissions of clean low-carbon hydrogen over its full life cycle. The carbon emissions of clean low-carbon hydrogen are: ； in, , The first annual carbon emissions and total demand for clean, low-carbon hydrogen; For clean low-carbon hydrogen Unit carbon emissions per year; ； in, Indicates Hydrogen production method 1st life cycle stage year's carbon footprint, and so on.

6. A full life cycle clean low carbon hydrogen carbon emission calculation system based on system dynamics, characterized in that: Includes the following modules: Data acquisition module, which obtains the system parameters for the current production of clean low-carbon hydrogen and divides the different stages of the entire life cycle of clean low-carbon hydrogen; The full life cycle module establishes a carbon emission calculation model for the full life cycle of clean low-carbon hydrogen based on the different stages of the full life cycle; System dynamics module, which builds a system dynamics model based on the entire life cycle; The carbon emission calculation module obtains the dynamic changes of energy structure and total hydrogen demand based on the system dynamics model, and uses the full life cycle carbon emission calculation model to calculate the carbon emissions of clean and low-carbon hydrogen.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: The computer program is used to execute the steps of implementing the method for calculating the carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics as described in one of claims 1-5.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for calculating the carbon emissions of clean low-carbon hydrogen throughout its life cycle based on system dynamics as described in any one of claims 1 to 5 are implemented.

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