A method and terminal for calculating carbon emission responsibility in the power industry

Abstract

The present invention discloses a method and terminal for calculating carbon emission responsibility in the power industry. The method calculates the self-produced and self-used electricity, transferred-out electricity and transferred-in electricity corresponding to the area to be calculated based on the inter-domain power transmission line loss rate, the intra-domain power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient and the coal supply emission coefficient based on the power industry full-cycle point-flow model and the power industry full-cycle carbon emission model. The carbon emission responsibility sharing factor of the power transfer part is calculated based on the benefit principle and the efficiency principle. Subsequently, the carbon emission responsibility of the power industry is calculated based on the carbon emission responsibility sharing factor. The implicit carbon emissions of the power industry are calculated based on the full-cycle perspective, which is helpful to correctly evaluate the carbon emissions of the power industry, subdivide the responsibility sharing standards, and help to fairly and reasonably define the responsibilities of the production side and the consumption side. At the same time, economic and technical standards are taken into consideration in the calculation of the carbon emission responsibility sharing factor, so as to more fairly and reasonably distribute the carbon emission responsibility of the power industry.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power carbon emissions, and in particular to a method and terminal for calculating carbon emission responsibility in the electric power industry. Background Art

[0002] Interprovincial power transmission has become a crucial solution for ensuring electricity supply in many regions. However, in this scenario, electricity carbon emissions and emission reduction costs remain entirely borne by the power generation side, with no transmission through the supply chain to the consumer side. This also ignores the implicit carbon emissions of the power supply chain and underestimates the actual emissions of the power sector. This has left some provinces at a disadvantage in terms of carbon emission spatial allocation and economic benefits. Furthermore, due to varying levels of emission reduction efforts and approaches across provinces, interprovincial "carbon inequality" is a prominent issue. Therefore, when promoting carbon reduction actions, both at the national and provincial levels, full consideration should be given to carbon emissions from the power supply chain and interprovincial transfers. Carbon reduction responsibilities across different provinces should be properly assessed, scientifically defined, and rationally allocated.

[0003] In fact, some research has already yielded some results on this issue. Regarding carbon emissions accounting in the power sector, some studies have proposed methods for estimating embodied carbon in the power sector from an industrial chain perspective. For example, a full-cycle analysis approach has been used to establish a carbon emissions measurement model for the coal-fired power energy chain, providing specific measurement methods and inventories for each link. Furthermore, a full life cycle assessment approach has been used to propose carbon emission factors for the power sector and analyze regional differences and their causes. However, most of these studies focus on the power generation side, overlooking the carbon emissions transfer caused by interprovincial power transmission. Some studies have addressed the issue of interprovincial power transmission and the fairness of carbon emission reductions among provinces. For example, carbon emission calculation methods that consider interprovincial power transmission are used to promote fairness and coordination in carbon emission reductions among provinces. A bottom-up model has been developed to measure carbon transfer in interprovincial power transmission in China, comparing emissions from the power consumption and power generation sides. However, these studies lack a full-cycle approach to carbon emissions, leading to underestimates of the scale of carbon emissions and carbon transfers among provinces.

[0004] There are three main approaches to sharing carbon emission rights and responsibilities: 1. Producer responsibility, whereby carbon emission responsibility falls on producers. This method is highly operational and easy to calculate, but it also presents the problem of "carbon leakage." 2. Consumer responsibility, whereby carbon emission responsibility should be borne by consumers. While this approach demonstrates fairness, it shifts the entire burden of carbon emissions from exporting regions to consumers, lacking the necessary constraints on production. 3. Shared responsibility. Under this shared responsibility approach, regional carbon emission responsibility is shared by producers and consumers, but the criteria for allocating responsibility between the two are difficult to determine. Existing research has identified three main methods for determining responsibility allocation coefficients: the first, which prioritizes equal responsibility, ignores the asymmetry of carbon transfer responsibilities between the production and consumption sides. The second, which bases responsibility allocation on technological level, argues that regions with high production efficiency should be rewarded, and their corresponding producer responsibility should be reduced. However, since economically developed regions often have higher power generation efficiency, this allocation approach tends to favor economically developed regions, hindering the development of less developed regions. The third approach, based on the benefit principle, links economic benefits with ecological and environmental responsibilities, allocating responsibilities between production and consumption based on the principle of "greater benefits, greater responsibilities." However, this approach weakens production-side responsibility and is detrimental to the low-carbon transformation of the power industry.

[0005] In summary, existing methods still have the following shortcomings: ① Most calculate carbon emissions from the power industry from the power generation side, ignoring carbon transfer caused by inter-provincial power transmission. ② Even when carbon transfer from the power industry is considered, most methods lack a comprehensive consideration of the entire supply chain cycle, resulting in an underestimate of the amount of carbon transfer. ③ Regarding the sharing of carbon transfer responsibilities, most methods are based on a single technical or economic standard, failing to balance regional fairness in carbon transfer responsibility sharing with the guidance of low-carbon development in the power industry. This is not conducive to the fair and reasonable allocation of carbon quotas and does not contribute to regional coordinated emission reductions. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a method and terminal for calculating carbon emission responsibility in the power industry, which can more fairly and reasonably distribute the carbon emission responsibility of the power industry.

[0007] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0008] A method for calculating carbon emission responsibility in the power industry, comprising the steps of:

[0009] Determine the inter-regional power transmission line loss rate, intra-regional power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated;

[0010] Calculate the self-generated and self-used electricity, transferred-out electricity, and transferred-in electricity corresponding to the area to be calculated based on the inter-regional power transmission line loss rate, the intra-regional power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry;

[0011] Calculating the carbon emission responsibility sharing factor of the power outflow corresponding to the area to be calculated based on the benefit principle and the efficiency principle, and determining the carbon emission responsibility sharing factor of the power inflow corresponding to the area to be calculated;

[0012] The carbon emission responsibility of the power industry corresponding to the area to be calculated is calculated based on the self-generated and self-used electricity, the transferred-out electricity, the transferred-in electricity, the carbon emission responsibility sharing factor of the transferred-out electricity and the carbon emission responsibility sharing factor of the transferred-in electricity.

[0013] In order to solve the above technical problems, another technical solution adopted by the present invention is:

[0014] A terminal for evaluating the efficiency and benefit of newly added investment assets includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented:

[0015] Determine the inter-regional power transmission line loss rate, intra-regional power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated;

[0016] Calculate the self-generated and self-used electricity, transferred-out electricity, and transferred-in electricity corresponding to the area to be calculated based on the inter-regional power transmission line loss rate, the intra-regional power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry;

[0017] Calculating the carbon emission responsibility sharing factor of the power outflow corresponding to the area to be calculated based on the benefit principle and the efficiency principle, and determining the carbon emission responsibility sharing factor of the power inflow corresponding to the area to be calculated;

[0018] The carbon emission responsibility of the power industry corresponding to the area to be calculated is calculated based on the self-generated and self-used electricity, the transferred-out electricity, the transferred-in electricity, the carbon emission responsibility sharing factor of the transferred-out electricity and the carbon emission responsibility sharing factor of the transferred-in electricity.

[0019] The beneficial effects of the present invention are as follows: according to the inter-regional power transmission line loss rate, the intra-regional power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient and the coal supply emission coefficient, based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry, the self-produced and self-used power, the transferred-out power and the transferred-in power corresponding to the to-be-calculated area are calculated; based on the benefit principle and the efficiency principle, the carbon emission responsibility sharing factor of the power transferred-out part corresponding to the said to-be-calculated area is calculated; subsequently, the carbon emission responsibility of the power industry is calculated based on the carbon emission responsibility sharing factor; the implicit carbon emissions of the power industry are calculated based on the full-cycle perspective, which helps to correctly evaluate the carbon emissions of the power industry; the net carbon transfer caused by inter-regional power transmission is subdivided into the transferred-in part on the consumption side and the transferred-out part on the production side; the subdivision of the responsibility sharing standard helps to fairly and reasonably define the responsibilities of the production side and the consumption side; at the same time, in the calculation of the carbon emission responsibility sharing factor, economic and technical standards are taken into account, and fairness between regions and the guidance of coordinated emission reduction are taken into account, so as to more fairly and reasonably distribute the carbon emission responsibility of the power industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a flowchart of a method for calculating carbon emission responsibility in the power industry according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic structural diagram of a carbon emission responsibility calculation terminal for the power industry according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of carbon emission classification for the power industry in a method for calculating carbon emission responsibility for the power industry according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0024] Please refer to Figure 1 , an embodiment of the present invention provides a method for calculating carbon emission responsibility in the power industry, comprising the steps of:

[0025] Determine the inter-regional power transmission line loss rate, intra-regional power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated;

[0026] Calculate the self-generated and self-used electricity, transferred-out electricity, and transferred-in electricity corresponding to the area to be calculated based on the inter-regional power transmission line loss rate, the intra-regional power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry;

[0027] Calculating the carbon emission responsibility sharing factor of the power outflow corresponding to the area to be calculated based on the benefit principle and the efficiency principle, and determining the carbon emission responsibility sharing factor of the power inflow corresponding to the area to be calculated;

[0028] The carbon emission responsibility of the power industry corresponding to the area to be calculated is calculated based on the self-generated and self-used electricity, the transferred-out electricity, the transferred-in electricity, the carbon emission responsibility sharing factor of the transferred-out electricity and the carbon emission responsibility sharing factor of the transferred-in electricity.

[0029] As can be seen from the above description, the beneficial effects of the present invention are as follows: based on the inter-regional power transmission line loss rate, the intra-regional power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient, the self-produced and self-used power, the transferred-out power, and the transferred-in power corresponding to the to-be-calculated region are calculated based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry; the carbon emission responsibility sharing factor of the power transferred-out portion corresponding to the to-be-calculated region is calculated based on the benefit principle and the efficiency principle; the carbon emission responsibility of the power industry is subsequently calculated based on the carbon emission responsibility sharing factor; the implicit carbon emissions of the power industry are calculated from a full-cycle perspective, which helps to correctly assess the carbon emissions of the power industry; the net carbon transfer caused by inter-regional power transmission is subdivided into the consumer-side transferred-in portion and the production-side transferred-out portion; the subdivided responsibility sharing standards help to fairly and reasonably define the responsibilities of the production and consumption sides; at the same time, the calculation of the carbon emission responsibility sharing factor takes into account economic and technical standards, takes into account fairness between regions and the guidance of coordinated emission reduction, thereby more fairly and reasonably distributing the carbon emission responsibility of the power industry.

[0030] Furthermore, before determining the inter-domain power transmission line loss rate, intra-domain power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated, the following steps are included:

[0031] Establishing a power generation and consumption balance relationship in a region based on the region's power generation, power input, power export, power consumption, and power supply losses within the region;

[0032] Establishing a regional coal supply and consumption balance based on the self-consumption portion of the region's power generation and the amount of power imported;

[0033] Constructing a full-cycle point-flow model for the power industry based on the power production and consumption balance relationship and the coal supply and consumption balance relationship;

[0034] A full-cycle carbon emission model for the power industry is constructed based on the electricity emissions and coal emissions in the region.

[0035] From the above description, we can see that embodied carbon emissions refer to the total amount of direct and indirect carbon dioxide emissions released in the entire production chain in order to produce a certain product. Before calculating the carbon emission responsibility of the power industry, it is necessary to clarify the embodied carbon emissions and flow directions of each link in the power industry. Therefore, based on the balance between electricity production and use and the balance between coal supply and consumption, a full-cycle point-flow model of the power industry is constructed to depict the power transmission between various regions (i.e. unit points) in my country and the activity flow between regions. Then, a full-cycle carbon emission model of the power industry is constructed based on the regional electricity emissions and coal emissions. These two models serve as the basis for the subsequent calculation of carbon emission responsibility, and more comprehensively consider the embodied carbon in the cross-regional flow of electricity and the emission reduction responsibilities of production and consumption areas.

[0036] Furthermore, establishing a power generation and consumption balance relationship in the region based on the region's power generation, power input, power output, power consumption, and power supply loss within the region includes:

[0037]

[0038]

[0039] ES r =(EP rs -EO r )×(1-λ r );

[0040] Where, EP rs Indicates the power generation of the area to be calculated, EI rs represents the input power from area s to area r to be calculated, EO r represents the power output of the region r to be calculated, EC r represents the power consumption of the area r to be calculated, EWr represents the power loss within the area r to be calculated, ES r represents the self-consumption portion of the power generation in the region to be calculated, λ r represents the power transmission line loss rate within the region r to be calculated;

[0041] The establishment of a regional coal supply and consumption balance relationship based on the self-consumption portion of the regional power generation and the imported power includes:

[0042]

[0043] Where CC r represents the coal consumption of the total electricity consumption in the region r to be calculated, ce r represents the coal consumption coefficient of the power plant in the area to be calculated, λ r ' s represents the inter-domain power transmission line loss rate between the regions r and s to be calculated, ce srepresents the coal consumption coefficient of power plants in region s, cs r Indicates the proportion of coal in the region r to be calculated in the total coal consumption for power generation, ci rn It represents the proportion of coal transferred from region n to region r to be calculated in the total coal consumption for power generation.

[0044] From the above description, it can be seen that the full-cycle point-flow model of the power industry established in the above way can reflect that part of the power production in a certain region is used by the region itself, and part is transferred to other regions. Part of the coal used for power production in this region comes from the region, part of the coal used for power production in this region comes from other coal transfer areas, and part of the electricity consumption in this region comes from other power transmission areas. It more comprehensively considers the embodied carbon in the cross-regional flow of electricity and the emission reduction responsibilities of the production and consumption areas, which is conducive to promoting coordinated emission reduction on the power generation and power consumption sides.

[0045] Furthermore, constructing a full-cycle carbon emission model for the power industry based on the power emissions and coal emissions in the region includes:

[0046] CE r =CEE r +CEC r ;

[0047]

[0048]

[0049] Where, CE r Indicates the carbon emissions of the power industry throughout its life cycle, CEE r Indicates electricity emissions, CEC r Indicates partial emissions from coal, ef r represents the power plant emission coefficient for the region r to be calculated, ef s represents the power supply emission factor of the power plant in area s, cf r represents the coal supply emission coefficient of the region r to be calculated, cf n represents the coal supply emission coefficient of region n, cf s represents the coal supply emission coefficient in region s.

[0050] From the above description, we can see that various energy activities in the power industry will generate carbon emissions. According to the above-constructed full-cycle point-flow model of the power industry, we can know that the full-cycle carbon emission model of the power industry should include electricity emissions and coal emissions, thereby more accurately depicting the full-cycle carbon emissions of the power industry.

[0051] Furthermore, the determination of the inter-domain power transmission line loss rate, intra-domain power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated includes:

[0052] Obtain the power transmission loss between regions across the country;

[0053] Determine the ratio of the national inter-regional power transmission loss to the power output as the inter-regional power transmission line loss rate corresponding to the area to be calculated;

[0054] Obtaining the power transmission and distribution loss within the area to be calculated and the amount of unadjusted power within the area, and determining the ratio of the power transmission and distribution loss within the area to the amount of unadjusted power within the area as the power transmission line loss rate within the area;

[0055] Obtaining the thermal power proportion, thermal power standard coal consumption, and standard coal conversion coefficient of the area to be calculated, and calculating the power plant power supply coal consumption coefficient based on the thermal power proportion, thermal power standard coal consumption, and standard coal conversion coefficient;

[0056] Obtaining a coal emission factor, and calculating a power plant power supply emission coefficient based on the power plant power supply coal consumption coefficient and the coal emission factor;

[0057] Obtain the methane emissions per unit of coal production, the coal spontaneous combustion emissions per unit of coal production, and the energy consumption emissions per unit of coal mining and dressing process, and calculate the coal supply emission coefficient based on the methane emissions per unit of coal production, the coal spontaneous combustion emissions per unit of coal production, and the energy consumption emissions per unit of coal mining and dressing process.

[0058] From the above description, it can be seen that through the above coefficient calculation, the coefficient can be subsequently brought into the model to calculate the self-produced and self-used electricity, outgoing electricity and incoming electricity corresponding to the calculated area, which serves as the basis for subsequent carbon emission responsibility sharing.

[0059] Furthermore, the calculation of the self-generated and self-used power, transferred-out power, and transferred-in power corresponding to the to-be-calculated area based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry according to the inter-domain power transmission line loss rate, the intra-domain power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient includes:

[0060] The self-generated electricity CES r for:

[0061]

[0062] Where, ES r represents the self-consumption portion of the power generation in the region to be calculated, λ r represents the power transmission line loss rate within the region r to be calculated, ef rrepresents the power supply emission coefficient of the power plant in the area to be calculated, ce r represents the coal consumption coefficient of the power plant in the area to be calculated, cs r represents the proportion of coal in the total coal consumption of power generation in the region r to be calculated, cf r represents the coal supply emission coefficient of the region r to be calculated, ci rn represents the proportion of coal transferred from region n to region r to be calculated in the total coal consumption for power generation, cf n represents the emission coefficient of coal supply in region n;

[0063] The CEO of the Power Transfer r for:

[0064]

[0065] Where, EO r represents the power output of the area r to be calculated, ef r represents the power supply emission coefficient of the power plant in the area to be calculated, ce r Indicates the coal consumption coefficient of the power plant in the area r to be calculated;

[0066] The imported electricity CEI rs for:

[0067] CEI rs =∑ s EI rs / (1-λ′ rs )×ef s +∑ s EI rs / (1-λ′ rs )×ce s ×cf s ;

[0068] Where, EI rs represents the input power from area s to area r to be calculated, λ r ' s represents the inter-domain power transmission line loss rate between the regions r and s to be calculated, ef s represents the power supply emission coefficient of the power plant in area s, ce s represents the coal consumption coefficient of power plants in region s, cf s represents the coal supply emission coefficient in region s.

[0069] From the above description, it can be seen that by calculating the self-produced and self-used electricity, imported electricity and exported electricity in the area to be calculated in the above way, the entire cycle of the industrial chain can be fully considered, thereby improving the accuracy and reliability of the carbon emission responsibility calculation.

[0070] Furthermore, the calculation of the carbon emission responsibility sharing factor of the power export portion corresponding to the to-be-calculated area based on the benefit principle and the efficiency principle includes:

[0071] Calculate the first base period responsibility sharing factor corresponding to the area to be calculated based on the benefit principle;

[0072] Calculate the second base period responsibility sharing factor corresponding to the area to be calculated based on the efficiency principle;

[0073] The carbon emission responsibility sharing factor of the power export part corresponding to the area to be calculated is calculated according to the first base period responsibility sharing factor and the second base period responsibility sharing factor.

[0074] From the above description, it can be seen that the corresponding base period responsibility sharing factors are calculated respectively according to the benefit principle and the efficiency principle, and then the carbon emission responsibility sharing factor of the power transfer part is calculated according to the first base period responsibility sharing factor and the second base period responsibility sharing factor. This can simultaneously consider economic and technical standards, take into account regional fairness and coordinated emission reduction guidance, thereby improving the fairness and rationality of carbon emission responsibility sharing.

[0075] Furthermore, the calculation of the first base period responsibility sharing factor corresponding to the to-be-calculated area based on the benefit principle includes:

[0076]

[0077] A=max{GDP i / C i ,i=1,2,3...n}-min{GDP i / C i ,i=1,2,3...n};

[0078]

[0079] Where, represents the first base period responsibility sharing factor, B represents the difference between the base period electricity efficiency of the region r to be calculated and the domestic average electricity efficiency, A represents the difference between the highest and lowest electricity efficiency of the domestic region in the base period, GDP i represents the base period GDP of region i, C i represents the base period electricity consumption of region i, n represents the number of all regions, GDP r represents the base period GDP of the region r to be calculated, C r represents the base period electricity consumption of the region r to be calculated;

[0080] The calculation of the second base period responsibility sharing factor corresponding to the area to be calculated based on the efficiency principle includes:

[0081]

[0082]

[0083] Where, Represents the second base period responsibility sharing factor, EEV r Indicates the electricity value of the area r to be calculated, EV r Indicates the power equivalent value of the area to be calculated, FC m represents the consumption of fuel m in thermal power generation, σ m represents the standard coal equivalent coefficient, and FEV represents the total amount of thermal power generation;

[0084] The carbon emission responsibility sharing factor α of the power output corresponding to the area to be calculated r for:

[0085]

[0086] From the above description, it can be seen that the determination of the carbon emission responsibility sharing factor is an allocation method based on the benefit principle and the efficiency principle, which takes into account the regional fairness of carbon transfer responsibility sharing and the low-carbon development guidance of the power industry. Based on the benefit principle, the region with a larger GDP value per unit of electricity consumption reflects that it generates more income from electricity consumption, and its proportion of responsibility should be higher. Based on the efficiency principle, the region with higher thermal power generation efficiency should have a lower proportion of producer responsibility. Only in this way can the calculated carbon emission responsibility sharing factor better reflect the shared responsibility of inter-regional carbon transfer.

[0087] Furthermore, the carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-produced and self-used electricity, the exported electricity, the imported electricity, the carbon emission responsibility sharing factor of the exported electricity, and the carbon emission responsibility sharing factor of the imported electricity includes:

[0088]

[0089] Where, CER r represents the carbon emission responsibility of the power industry in the region r to be calculated, CES r Indicating the self-generated electricity, CEO r Indicates the transferred power, CEI rs represents the transferred power, α r Represents the carbon emission responsibility sharing factor of the power export part, 1-α s It represents the carbon emission responsibility sharing factor of the electricity import part.

[0090] From the above description, it can be seen that according to the composition of the beneficiaries of power transmission, the carbon emission responsibility of the regional power industry should consist of three parts, namely: the carbon emission responsibility of electricity produced and meeting local consumption shall be borne by the local area; the part of electricity transferred out of the region to meet external consumption, the local area benefits from selling electricity to other places, and the implicit carbon embodied in power transfer should only bear the local benefit part; and the part of electricity transferred into other regions to meet local consumption, which benefits from consuming the electricity transferred from other regions and should bear the carbon emission responsibility excluding the benefit part of power transmission in the power generation area. Therefore, the carbon emission responsibility of the power industry calculated according to the above formula can subdivide the net carbon transfer caused by inter-regional power transmission into the consumption side transfer part and the production side transfer part, and subdivide the responsibility sharing standards, which will help to fairly and reasonably define the responsibilities of the production and consumption sides.

[0091] Please refer to Figure 2 Another embodiment of the present invention provides a terminal for calculating carbon emission responsibility in the electric power industry, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, each step in the above-mentioned method for calculating carbon emission responsibility in the electric power industry is implemented.

[0092] The above-mentioned method and terminal for calculating carbon emission responsibility in the power industry of the present invention can be applied to inter-provincial carbon transfer scenarios, and are described below through specific implementation methods:

[0093] Example 1

[0094] In this embodiment, the description is based on the province as the region. The region can also be an administrative unit such as a city, district, or county, or an artificially divided area. The province is used here only as an example and cannot be used to limit the definition of the region.

[0095] Please refer to Figure 1 and Figure 3 , a method for calculating carbon emission responsibility in the power industry of this embodiment includes the following steps:

[0096] S1. Establish a balance between electricity production and consumption in a province based on its power generation, power input, power export, power consumption, and power loss within the province. Specifically:

[0097]

[0098]

[0099] ES r =(EP rs -EO r )×(1-λ r );

[0100] Where, EP rs Indicates the power generation of province r to be calculated, EIrs represents the input power from province s to province r in the area to be calculated, EO r Indicates the power output of province r to be calculated, EC r represents the electricity consumption of province r to be calculated, EWr represents the power loss within province r to be calculated, ES r represents the self-consumption portion of the power generation in province r to be calculated, λ r represents the intra-provincial power transmission line loss rate of province r to be calculated;

[0101] For each province, there is a power balance relationship, which is the first formula above. The total power consumption of province r to be calculated includes self-generated power consumption and power transferred from other provinces, which can be expressed as the second formula above. Assuming that the power transmission line loss rate within province r is λ r , this part of the loss is allocated to the power generation side, then the self-generated electricity consumption in the province (ie ES r ) can be expressed as the third formula above.

[0102] S2. Establishing a coal supply and consumption balance relationship for the province based on the self-consumption portion of the province's power generation and the imported power;

[0103] Based on the perspective of the full cycle analysis (LCA) of the power industry, the accounting of carbon emissions in the power industry should not only consider the direct carbon emissions generated by power plant power generation, but also the accompanying effects related to power plant power generation, and track the carbon emissions generated by various energy activities in the power industry chain. At present, my country's power production forms mainly include thermal power generation (i.e. coal-fired power), hydropower generation, wind power generation, solar power generation, nuclear power generation, etc. Except for coal, other resources cannot be transported and almost no emissions are generated. Based on this, the full cycle point-flow model of the power industry should also include some coal emissions related to electricity. According to the balance relationship between electricity production and use, there is also a balance relationship between electricity and coal use, that is, the balance relationship between coal supply and consumption. Specifically:

[0104]

[0105] Where CC r Indicates the coal consumption of the total electricity consumption of province r to be calculated, ce r represents the coal consumption coefficient of power plants in province r to be calculated, λ r ' s represents the inter-provincial power transmission line loss rate between provinces r and s to be calculated, ce s represents the coal consumption coefficient of power plants in province s, cs r Indicates the proportion of coal consumed by the province r in the total coal consumption for power generation, ci rn It represents the proportion of coal transferred from province n to province r to be calculated in the total coal consumption for power generation.

[0106] S3. Constructing a full-cycle point-flow model for the power industry based on the power production and consumption balance relationship and the coal supply and consumption balance relationship;

[0107] The full-cycle point-flow model for the power industry depicts power transmission (activity flows) between provinces (unit points) in China. In this model, the relationships between each province (unit point) are connected by power transmission (activity flows). The full-cycle point-flow model for the power industry can include four components: ① The power production of province r, part of which is used by the province itself and part of which is transferred to other provinces; ② The coal used for power production in province r is partially sourced from the province itself; ③ The coal used for power production in province r is partially sourced from other coal-transporting provinces; and ④ The electricity consumption in province r is partially sourced from other power-transporting provinces.

[0108] S4. Constructing a full-cycle carbon emission model for the power industry based on the power emissions and coal emissions of the province;

[0109] All energy activities in the power industry will generate carbon emissions. According to the above-mentioned full-cycle point-flow model of the power industry, the full-cycle carbon emissions of the power industry should include emissions from electricity and emissions from coal. Specifically:

[0110] CE r =CEE r +CEC r ;

[0111]

[0112]

[0113] Where, CE r Indicates the carbon emissions of the power industry throughout its life cycle, CEE r Indicates electricity emissions, CEC r Indicates partial emissions from coal, ef r Indicates the power supply emission coefficient of the power plant in province r to be calculated, ef s represents the power supply emission coefficient of the power plant in province s, cf r represents the coal supply emission coefficient of province r to be calculated, cf n represents the coal supply emission coefficient of province n, cf s represents the coal supply emission coefficient of province s.

[0114] S5. Determine the inter-provincial power transmission line loss rate, intra-provincial power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the province to be calculated, including:

[0115] S51. Obtain national inter-provincial power transmission losses;

[0116] Specifically, the difference between the power outflow and inflow data in the China Energy Statistical Yearbook is determined as the national inter-provincial power transmission loss.

[0117] S52. Determine the ratio of the national inter-provincial power transmission loss to the power transfer out as the inter-provincial power transmission line loss rate corresponding to the province to be calculated;

[0118] S53, obtaining the intra-provincial power transmission and distribution loss and the amount of power not transferred out of the province for the province to be calculated, and determining the ratio of the intra-provincial power transmission and distribution loss to the amount of power not transferred out of the province as the intra-provincial power transmission line loss rate;

[0119] S54. Obtain the proportion of thermal power, standard coal consumption of thermal power, and standard coal conversion coefficient of the province to be calculated, and calculate the power plant power supply coal consumption coefficient based on the proportion of thermal power, standard coal consumption of thermal power, and standard coal conversion coefficient. The power plant power supply coal consumption coefficient refers to the average unit coal consumption of all types of power plants in a province. Since coal consumption is only reflected in thermal power, the power plant power supply coal consumption only considers the thermal power portion.

[0120] Specifically, the proportion of thermal power in the province to be calculated is obtained from the China Energy Statistical Yearbook, the standard coal consumption of thermal power in the province to be calculated is obtained from the China Electric Power Yearbook, and the standard coal conversion factor is obtained from the IPCC National Greenhouse Gas Inventory Guidelines;

[0121] Among them, the power plant power supply coal consumption coefficient ce r for:

[0122] ce r =fr r ×fc r / μ;

[0123] Where, fr r Indicates the proportion of thermal power, fc r represents the standard coal consumption of thermal power generation, and μ represents the standard coal conversion coefficient.

[0124] To calculate the coal consumption coefficient ce of power plants in province s s , the calculation method is consistent with the above method, and it can be calculated based on the proportion of thermal power in Province S, the standard coal consumption of thermal power and the standard coal conversion coefficient.

[0125] S55. Obtain a coal emission factor, and calculate a power plant power supply emission coefficient based on the power plant power supply coal consumption coefficient and the coal emission factor. The power plant power supply emission coefficient refers to the average unit power supply emissions of all types of power plants in a province. Since hydropower, wind power, nuclear power, etc. almost do not generate carbon emissions during their production processes, power plant power supply emissions only consider the thermal power portion.

[0126] Specifically, coal emission factors were obtained from the IPCC Guidelines for National Greenhouse Gas Inventories;

[0127] Among them, the power plant power supply emission coefficient ef r for:

[0128] ef r =ce r ×φ;

[0129] Where φ represents the coal emission factor.

[0130] If the emission coefficients of power supply from power plants in other provinces are calculated, the same logic applies.

[0131] S56. Obtain methane emissions per unit of coal production, coal spontaneous combustion emissions per unit of coal production, and energy consumption emissions per unit of coal mining and dressing process, and calculate the coal supply emission coefficient based on the methane emissions per unit of coal production, coal spontaneous combustion emissions per unit of coal production, and energy consumption emissions per unit of coal mining and dressing process.

[0132] Coal supply emissions encompass both coal production and transportation, with production emissions representing the primary component. Due to data availability, this is simplified and represented using a production emission coefficient. Coal production involves three key components: coal mine methane emissions, coal spontaneous combustion emissions, and mining and dressing energy consumption emissions.

[0133] The coal supply emission factor cf is:

[0134] cf=cfmc+cfcc+cfec;

[0135] Wherein, cfmc represents the methane emission per unit of coal production, cfcc represents the coal spontaneous combustion emission per unit of coal production, and cfec represents the energy consumption emission per unit of coal mining and dressing process;

[0136] In an optional embodiment, according to existing research, the methane emissions per unit of coal production, the coal spontaneous combustion emissions per unit of coal production, and the energy consumption emissions per unit of coal mining and dressing process are respectively 4kg / t, 20.1kg / t, and 25.32kg / t.

[0137] S6. Calculate the self-generated and self-used electricity, transferred-out electricity, and transferred-in electricity corresponding to the province to be calculated based on the inter-provincial power transmission line loss rate, the intra-provincial power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry. Specifically:

[0138] The self-generated electricity CES r for:

[0139]

[0140] Where, ESr represents the self-consumption portion of the power generation in province r to be calculated, λ r Indicates the power transmission line loss rate within the province r to be calculated, ef r represents the power supply emission coefficient of the power plant in province r to be calculated, ce r represents the coal consumption coefficient of the power plant in province r to be calculated, cs r represents the proportion of coal consumed by the province r in the total coal consumption for power generation, cf r represents the coal supply emission coefficient of province r to be calculated, ci rn represents the proportion of coal transferred from province n to province r to be calculated in the total coal consumption for power generation, cf n represents the coal supply emission coefficient of province n;

[0141] The CEO of the Power Transfer r for:

[0142]

[0143] Where, EO r Indicates the power output of province r to be calculated, ef r represents the power supply emission coefficient of the power plant in province r to be calculated, ce r Indicates the coal consumption coefficient of power plants in province r to be calculated;

[0144] The CEI of the imported electricity rs for:

[0145] CEI rs =∑ s EI rs / (1-λ′ rs )×ef s +∑ s EI rs / (1-λ′ rs )×ce s ×cf s ;

[0146] Where, EI rs represents the amount of electricity input from province s to province r to be calculated, λ r ' s represents the inter-provincial power transmission line loss rate between provinces r and s to be calculated, ef s represents the power supply emission coefficient of the power plant in province s, ce s represents the coal consumption coefficient of power plants in province s, cf s represents the coal supply emission coefficient of province s.

[0147] like Figure 3As shown in the figure, it is assumed that the carbon emissions caused by the production process of the power industry in province r to meet local and external demand are CES r and CEO r The carbon emissions from electricity consumption from local production and external imports are CES r and CEI rs The domestic demand emissions on the electricity production side are equal to the provincial emissions on the consumption side, and the electricity production and consumption occur in the same geographical space, so there is no carbon transfer. There is a cross-regional flow of carbon emissions when electricity is transferred in and out, and CEI is transferred in from other provinces. rs Transfer CEO from this province r There is a possibility of non-equilibrium, and the difference between the two represents the level of inter-provincial net carbon transfer in the power industry. Therefore, the net carbon transfer calculation of the power industry in province r can be expressed as:

[0148] CET r =CEO r -CEI rs ;

[0149] Where CET r represents the net carbon transfer of electricity in province r to be calculated.

[0150] If CET r If the value is positive, it means that the embodied carbon in the outflow of products in the region is greater than the embodied carbon inflow, and it is a net carbon inflow region; otherwise, it is a net carbon outflow region. If CET r If the carbon transfer rate is zero, then the carbon inflow and outflow are balanced. Since uneven interprovincial power transmission is the norm, interprovincial carbon transfer is usually a net carbon inflow and outflow. Net interprovincial carbon transfer is shared by both the power generation side and the power consumption side. The net carbon transfer-in location (power generation side) should reduce its carbon emission responsibility, while the net carbon transfer-out location (power consumption side) should increase its carbon emission responsibility. The sum of the reduction and increase in carbon emission responsibility of the net carbon transfer-in and transfer-out locations is the CET.

[0151] S7. Calculate the carbon emission responsibility sharing factor of the electricity export portion corresponding to the province to be calculated based on the benefit principle and the efficiency principle, and determine the carbon emission responsibility sharing factor of the electricity import portion corresponding to the province to be calculated, specifically including:

[0152] S71. Calculate the first base period responsibility sharing factor corresponding to the province to be calculated based on the benefit principle;

[0153] Based on the benefit principle, provinces with larger GDP values ​​generated per unit of electricity consumption reflect that they generate more benefits from electricity consumption and their proportion of responsibility should be higher. Therefore, the highest provincial electricity efficiency value in the base period is selected as the basis for calculation. Specifically:

[0154]

[0155] A=max{GDPi / C i ,i=1,2,3...n}-min{GDP i / C i ,i=1,2,3...n};

[0156]

[0157] Where, represents the first base period responsibility sharing factor, B represents the difference between the base period electricity efficiency of province r and the domestic average electricity efficiency, A represents the difference between the highest and lowest electricity efficiency of provinces in the base period, GDP i represents the base period GDP of province i, C i represents the base period electricity consumption of province i, n represents the number of provinces, GDP r C represents the base period GDP of province r to be calculated, r represents the base period electricity consumption of province r to be calculated;

[0158] Normalize the ratio of B to A to get the first base period responsibility sharing factor Doing so can avoid the extreme value 1 under this principle, that is, taking full responsibility, and better reflect the shared responsibility of inter-provincial carbon transfer.

[0159] S72. Calculate the second base period responsibility sharing factor corresponding to the province to be calculated based on the efficiency principle;

[0160] Based on the efficiency principle, the province with higher thermal power generation efficiency should have a lower proportion of producer responsibility. Therefore, the electricity equivalent value and equivalent value representation are selected for calculation. Specifically:

[0161]

[0162]

[0163] Where, Represents the second base period responsibility sharing factor, EEV r Indicates the electricity value of province r to be calculated, EV r Indicates the electricity equivalent value of province r to be calculated, FC m represents the consumption of fuel m in thermal power generation, σ m represents the standard coal equivalent coefficient, and FEV represents the total amount of thermal power generation;

[0164] S73. Calculate the carbon emission responsibility sharing factor of the power export portion corresponding to the to-be-calculated province according to the first base period responsibility sharing factor and the second base period responsibility sharing factor;

[0165] Among them, the carbon emission responsibility sharing factor α of the power output corresponding to the province to be calculated is r for:

[0166]

[0167] S8. Calculate the carbon emission responsibility of the power industry corresponding to the province to be calculated based on the self-produced and self-used electricity, the exported electricity, the imported electricity, the carbon emission responsibility sharing factor of the exported electricity, and the carbon emission responsibility sharing factor of the imported electricity;

[0168] According to the composition of the beneficiaries of power transmission, the carbon emission responsibility of the provincial power industry should be composed of three parts: ① The carbon emission responsibility of electricity produced and meeting local consumption shall be borne by the local government (CES r ) ;② The electricity transferred from the province to meet the consumption of other places (CEO r ). The local benefits from selling electricity to other provinces, and the embodied carbon of electricity transfer should only bear the local benefits; ③ The part of electricity transferred from other provinces to meet local consumption (CEI rs ) If a province benefits from consuming electricity transferred from other provinces, it shall bear the carbon emission responsibility after excluding the benefits of electricity transmission from the power generation province. Specifically:

[0169]

[0170] Where, CER r Indicates the carbon emission responsibility of the power industry in province r to be calculated, CES r Indicating the self-generated electricity, CEO r Indicates the transferred power, CEI rs represents the transferred power, α r Represents the carbon emission responsibility sharing factor of the power export part, 1-α s represents the carbon emission responsibility sharing factor of the power import part, α s It represents the carbon emission responsibility sharing factor of the electricity export part of province s.

[0171] The following is an application of the electric power industry carbon emission responsibility calculation method of the present invention to the electric power industry carbon emission responsibility calculation scenario in Fujian Province:

[0172] This case study is based on data from the 2021 China Energy Statistical Yearbook, the China Electricity Statistical Yearbook, and the Fujian Province Statistical Yearbook. By applying this model to other years and regions, we can also analyze the carbon emission responsibility sharing of the power sector in other provinces, municipalities, and regions.

[0173] Data on electricity production, consumption, and power inflows and outflows for the power industry in China and Fujian Province in 2020 were obtained from the Statistical Yearbook. Inter-provincial power transmission line loss rate, intra-provincial power transmission line loss rate, power plant coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient were calculated, as shown in Table 1.

[0174] Table 1 Coefficients of the full-cycle point-flow model and the full-cycle carbon emission model of the power industry in Fujian Province

[0175]

[0176] Based on the coefficients in Table 1, the carbon emissions corresponding to self-generated and self-used electricity, exported electricity, and imported electricity in Fujian Province are calculated, as shown in Table 2.

[0177] Table 2 Carbon emissions from the power industry in Fujian Province

[0178]

[0179]

[0180] Based on the carbon transfer responsibility sharing standards proposed in this method, the carbon emission responsibility sharing factors of the power industry in Fujian Province based on the benefit and efficiency principles are calculated respectively, as shown in Table 3;

[0181] Table 3 Calculation results of carbon emission responsibility sharing factors for the power industry in Fujian Province

[0182]

[0183] The same calculation method as above, the carbon emission responsibility sharing factor α of the provinces that export electricity to Fujian Province is s is 0.352, then the carbon emission responsibility sharing factor of the power transfer part of Fujian Province is 1-α s is 0.648;

[0184] Based on the above data It can be calculated that the carbon emission responsibility of the power industry in Fujian Province in 2020 is 90,357,129.662 tons.

[0185] Fujian Province's power structure is primarily composed of thermal, hydroelectric, and nuclear power. While electricity production meets the province's needs, it also exports 2%-4% of its electricity annually. According to the current power industry's production-based calculation method, the carbon emissions from this exported electricity are entirely borne by Fujian Province, which is detrimental to the province's power development and easily causes "carbon leakage," and its emission reduction responsibilities should be reduced. According to the present invention's production-side and consumption-side responsibility-sharing calculation method based on the principles of benefit and efficiency, Fujian Province will bear 355.783 tons less carbon emissions. This method, through shared responsibility, guides coordinated emission reductions on the production and consumption sides; through the principles of benefit and efficiency sharing, it encourages beneficiaries to assume more responsibility for emission reductions, accelerates the elimination of inefficient and high-energy-consuming power generation units, and promotes the development of clean electricity.

[0186] The above-mentioned method of the present invention more comprehensively considers the embodied carbon in cross-regional electricity flows and the emission reduction responsibilities of production and consumption sites, which is conducive to promoting coordinated emission reduction on the power generation and consumption sides. The main differences from existing model methods can be reflected in the following points: ① Calculating the embodied carbon emissions of the power industry from a full-cycle perspective helps to correctly assess the carbon emissions of the power industry; ② Subdividing the net carbon transfer caused by inter-provincial power transmission into the consumption side and the production side, and subdividing the responsibility sharing standards, helps to fairly and reasonably define the responsibilities of the production and consumption sides; ③ In the design of carbon emission responsibility sharing factors, economic and technical standards are considered simultaneously, taking into account fairness between regions and the guidance of coordinated emission reduction.

[0187] Under the premise of taking into account the inter-provincial transfer of embodied carbon in electricity throughout the entire cycle, a fair and reasonable method for determining regional electricity carbon emission responsibilities is constructed, which can be used for provincial carbon emission responsibility accounting in my country's power industry and provide basic support for the allocation of carbon emission quotas in the provincial power industry.

[0188] Example 2

[0189] Please refer to Figure 2 , a terminal for calculating carbon emission responsibility for the electric power industry in this embodiment includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, each step in the method for calculating carbon emission responsibility for the electric power industry in Example 1 is implemented.

[0190] In summary, the present invention provides a method and terminal for calculating carbon emission responsibility in the power industry, which determines the inter-domain power transmission line loss rate, intra-domain power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient and coal supply emission coefficient corresponding to the area to be calculated; calculates the self-produced and self-used power, transferred-out power and transferred-in power corresponding to the area to be calculated based on the inter-domain power transmission line loss rate, intra-domain power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient and coal supply emission coefficient based on the power industry full-cycle point-flow model and the power industry full-cycle carbon emission model; calculates the carbon emission responsibility sharing factor of the power transferred-out part corresponding to the area to be calculated based on the benefit principle and the efficiency principle, and determines the carbon emission responsibility sharing factor of the power transferred-in part corresponding to the area to be calculated. The carbon emission responsibility sharing factor is calculated based on the self-produced and self-used electricity, the transferred-out electricity, the transferred-in electricity, the carbon emission responsibility sharing factor of the electricity transferred-out part and the carbon emission responsibility sharing factor of the electricity transferred-in part, and the implicit carbon emissions of the power industry are calculated based on a full-cycle perspective, which helps to correctly evaluate the carbon emissions of the power industry, and subdivides the net carbon transfer caused by inter-domain power transmission into the consumption-side transferred-in part and the production-side transferred-out part. The subdivision of the responsibility sharing standards helps to fairly and reasonably define the responsibilities of the production and consumption sides. At the same time, economic and technical standards are taken into account in the calculation of the carbon emission responsibility sharing factor, and fairness between regions and coordinated emission reduction guidance are taken into account, so as to more fairly and reasonably distribute the carbon emission responsibility of the power industry.

[0191] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for calculating carbon emission responsibility in the power industry, characterized in that: Including steps: The power generation and consumption balance relationship of the region is established based on the region's power generation, power input, power output, power consumption, and power supply loss within the region, including: ； ； ； Where, EP rs Indicates the power generation of the area to be calculated, EI rs represents the input power from area s to area r to be calculated, EO r represents the power output of the region r to be calculated, EC r represents the power consumption of the area r to be calculated, EWr represents the power loss within the area r to be calculated, ES r represents the self-consumption portion of the power generation in the region to be calculated, represents the power transmission line loss rate within the region r to be calculated; Establish a regional coal supply and consumption balance based on the self-consumption portion of the region's power generation and the amount of imported electricity, including: ； Where CC r represents the coal consumption of the total electricity consumption in the region r to be calculated, ce r represents the coal consumption coefficient of the power plant in the area r to be calculated, represents the inter-domain power transmission line loss rate between the regions r and s to be calculated, ce s represents the coal consumption coefficient of power plants in region s, cs r Indicates the proportion of coal in the region r to be calculated in the total coal consumption for power generation, ci rn It represents the proportion of coal transferred from region n to region r to be calculated in the total coal consumption for power generation; Constructing a full-cycle point-flow model for the power industry based on the power production and consumption balance relationship and the coal supply and consumption balance relationship; A full-cycle carbon emissions model for the power industry is constructed based on the electricity and coal emissions in the region, including: ； ； ； Where, CE r Indicates the carbon emissions of the power industry throughout its life cycle, CEE r Indicates electricity emissions, CEC r Indicates partial emissions from coal, ef r represents the power plant emission coefficient for the region r to be calculated, ef s represents the power supply emission factor of the power plant in area s, cf r represents the coal supply emission coefficient of the region r to be calculated, cf n represents the coal supply emission coefficient of region n, cf s represents the coal supply emission coefficient in region s; Determine the inter-regional power transmission line loss rate, intra-regional power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated; Calculate the self-generated and self-used electricity, transferred-out electricity, and transferred-in electricity corresponding to the area to be calculated based on the inter-regional power transmission line loss rate, the intra-regional power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry; Calculating the carbon emission responsibility sharing factor of the power outflow corresponding to the area to be calculated based on the benefit principle and the efficiency principle, and determining the carbon emission responsibility sharing factor of the power inflow corresponding to the area to be calculated; The carbon emission responsibility of the power industry corresponding to the area to be calculated is calculated based on the self-generated and self-used electricity, the transferred-out electricity, the transferred-in electricity, the carbon emission responsibility sharing factor of the transferred-out electricity and the carbon emission responsibility sharing factor of the transferred-in electricity.

2. A method for calculating carbon emission responsibility in the power industry according to claim 1, characterized in that: Determining the inter-domain power transmission line loss rate, intra-domain power transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient, and coal supply emission coefficient corresponding to the area to be calculated includes: Obtain national inter-regional power transmission losses; Determine the ratio of the national inter-regional power transmission loss to the power output as the inter-regional power transmission line loss rate corresponding to the area to be calculated; Obtaining the power transmission and distribution loss within the area to be calculated and the amount of unadjusted power within the area, and determining the ratio of the power transmission and distribution loss within the area to the amount of unadjusted power within the area as the power transmission line loss rate within the area; Obtaining the thermal power proportion, thermal power standard coal consumption, and standard coal conversion coefficient of the area to be calculated, and calculating the power plant power supply coal consumption coefficient based on the thermal power proportion, thermal power standard coal consumption, and standard coal conversion coefficient; Obtaining a coal emission factor, and calculating a power plant power supply emission coefficient based on the power plant power supply coal consumption coefficient and the coal emission factor; Obtain the methane emissions per unit of coal production, the coal spontaneous combustion emissions per unit of coal production, and the energy consumption emissions per unit of coal mining and dressing process, and calculate the coal supply emission coefficient based on the methane emissions per unit of coal production, the coal spontaneous combustion emissions per unit of coal production, and the energy consumption emissions per unit of coal mining and dressing process.

3. The method for calculating carbon emission responsibility in the power industry according to claim 1, characterized in that: The calculating of the self-generated and self-used power, the transferred-out power, and the transferred-in power corresponding to the to-be-calculated area based on the full-cycle point-flow model of the power industry and the full-cycle carbon emission model of the power industry according to the inter-domain power transmission line loss rate, the intra-domain power transmission line loss rate, the power plant power supply coal consumption coefficient, the power plant power supply emission coefficient, and the coal supply emission coefficient includes: The self-generated electricity CES r for: ； Where, ES r represents the self-consumption portion of the power generation in the region to be calculated, represents the power transmission line loss rate within the region r to be calculated, ef r represents the power supply emission coefficient of the power plant in the area to be calculated, ce r represents the coal consumption coefficient of the power plant in the area to be calculated, cs r represents the proportion of coal in the total coal consumption of power generation in the region r to be calculated, cf r represents the coal supply emission coefficient of the region r to be calculated, ci rn represents the proportion of coal transferred from region n to region r to be calculated in the total coal consumption for power generation, cf n represents the emission coefficient of coal supply in region n; The CEO of the Power Transfer r for: ； Where, EO r represents the power output of the area r to be calculated, ef r represents the power supply emission coefficient of the power plant in the area to be calculated, ce r Indicates the coal consumption coefficient of the power plant in the area r to be calculated; The CEI of the imported electricity rs for: ； Where, EI rs represents the input power from area s to area r to be calculated, represents the inter-domain power transmission line loss rate between the regions r and s to be calculated, ef s represents the power supply emission coefficient of the power plant in area s, ce s represents the coal consumption coefficient of power plants in region s, cf s represents the coal supply emission coefficient in region s.

4. A method for calculating carbon emission responsibility in the power industry according to claim 1, characterized in that: The calculation of the carbon emission responsibility sharing factor of the power export portion corresponding to the area to be calculated based on the benefit principle and the efficiency principle includes: Calculate the first base period responsibility sharing factor corresponding to the area to be calculated based on the benefit principle; Calculate the second base period responsibility sharing factor corresponding to the area to be calculated based on the efficiency principle; The carbon emission responsibility sharing factor of the power export part corresponding to the area to be calculated is calculated according to the first base period responsibility sharing factor and the second base period responsibility sharing factor.

5. A method for calculating carbon emission responsibility in the power industry according to claim 4, characterized in that: The calculation of the first base period responsibility sharing factor corresponding to the to-be-calculated area based on the benefit principle includes: ； ； ； Where, represents the first base period responsibility sharing factor, B represents the difference between the base period electricity efficiency of the region r to be calculated and the domestic average electricity efficiency, A represents the difference between the highest and lowest electricity efficiency of the domestic region in the base period, GDP i represents the base period GDP of region i, C i represents the base period electricity consumption of region i, n represents the number of all regions, GDP r represents the base period GDP of the region r to be calculated, C r represents the base period electricity consumption of the region r to be calculated; The calculation of the second base period responsibility sharing factor corresponding to the area to be calculated based on the efficiency principle includes: ； ； Where, Represents the second base period responsibility sharing factor, EEV r Indicates the electricity value of the area r to be calculated, EV r Indicates the power equivalent value of the area to be calculated, FC m represents the consumption of fuel m in thermal power generation, represents the standard coal equivalent coefficient, and FEV represents the total amount of thermal power generation; The carbon emission responsibility sharing factor α of the power output corresponding to the area to be calculated r for: 。 6. A method for calculating carbon emission responsibility in the power industry according to claim 1, characterized in that: The carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-generated and self-used electricity, the transferred-out electricity, the transferred-in electricity, the carbon emission responsibility sharing factor of the transferred-out electricity, and the carbon emission responsibility sharing factor of the transferred-in electricity includes: ； Where, CER r represents the carbon emission responsibility of the power industry in the region r to be calculated, CES r Indicating the self-generated electricity, CEO r Indicates the transferred power, CEI rs represents the transferred power, α r Represents the carbon emission responsibility sharing factor of the power export part, 1-α s It represents the carbon emission responsibility sharing factor of the electricity import part.

7. A terminal for calculating carbon emission responsibility in the power industry, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, each step of the method for calculating carbon emission responsibility in the power industry according to any one of claims 1 to 6 is implemented.

Images