CN115829207A - Carbon emission responsibility calculation method and terminal for power industry - Google Patents
Carbon emission responsibility calculation method and terminal for power industry Download PDFInfo
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Abstract
The invention discloses a method and a terminal for calculating carbon emission responsibility in the power industry, which are used for calculating self-generated self-consumption power, call-out power and call-in power corresponding to a region to be calculated according to an inter-domain power transmission line loss rate, an intra-domain power transmission line loss rate, a power plant power supply coal consumption coefficient, a power plant power supply emission coefficient and a coal supply emission coefficient based on a power industry full-period point-flow model and a power industry full-period carbon emission model, calculating a carbon emission responsibility sharing factor of a power call-out part based on a benefit principle and an efficiency principle, subsequently calculating the carbon emission responsibility in the power industry based on the carbon emission responsibility sharing factor, and checking implicit carbon emission in the power industry based on a full-period visual angle, thereby being beneficial to correctly evaluating the carbon emission in the power industry, subdividing responsibility sharing standards, being beneficial to reasonably and fairly defining responsibility on a production side and a consumption side, and simultaneously considering economic and technical standards on the calculation of the carbon emission responsibility sharing factor, thereby more reasonably distributing the carbon emission responsibility in the power industry.
Description
Technical Field
The invention relates to the technical field of power carbon emission, in particular to a carbon emission responsibility calculation method and a carbon emission responsibility calculation terminal in the power industry.
Background
Trans-provincial power transmission is an important solution for ensuring power supply in many regions. In this case, the power carbon emission and emission reduction cost is still completely borne by the power generation side and is not conducted to the consumption side through the industry chain, the implicit carbon emission of the power industry chain is ignored, and the actual emission of the power industry is underestimated. Therefore, part of the provinces become carbon emission transfer areas, the carbon emission space distribution and the economic benefit are in disadvantages, the emission reduction intensity and the emission reduction mode of each province are different, and the problem of carbon unfairness among the provinces is prominent. Therefore, in both the national level and the provincial level, when the carbon emission reduction action is promoted, the carbon emission transferred between the power industry chain and the provincial level is fully considered, and the carbon emission reduction responsibility of different provinces is correctly evaluated, scientifically defined and reasonably distributed.
Actually, some achievements exist in the discussion of the problem, and in the aspect of carbon emission accounting in the power industry, some researches propose a method for measuring and calculating the implicit carbon in the power industry from the perspective of an industrial chain, for example, a carbon emission measurement model of a coal-electric energy chain is established by applying a full-period analysis method, and a specific measurement method and a list of each link are given; a full life cycle evaluation method is utilized to provide a carbon emission factor value in the power industry, and regional differences and reasons are analyzed. However, such studies have mostly been initiated from the power generation side angle, ignoring the carbon emission shift resulting from inter-provincial power transfer. Partial research focuses on the problem of fairness between inter-provincial power transmission and each provincial carbon emission reduction, and if a carbon emission calculation method under the condition of power inter-provincial transmission is considered, the fairness and the cooperation of each provincial carbon emission reduction are promoted. Carbon transfer in inter-provincial power transmission in China was measured by establishing a bottom-up model, and power side and power generation side emissions were compared. However, these studies lack the consideration of the full cycle of carbon emissions, resulting in underestimation of carbon emissions and carbon transfer scale in each province.
There are three main ways in which carbon emissions can be shared: (1) the producer responsibility, namely the carbon emission responsibility belongs to the producer, and the accounting operation under the method is strong in operability and easy to calculate, but the problem of carbon leakage exists. (2) The customer responsibility, i.e. the carbon emission responsibility, should be assumed by the customer. While fairness is manifested, the outlet area carbon emissions responsibility is fully passed to the customer, lacking the necessary constraints on the production side. (3) Sharing responsibility. Under shared responsibility, regional carbon emission responsibility is shared by the producer and the consumer, but responsibility distribution criteria between the two are difficult to determine. From the prior research, there are three main methods for determining the responsibility distribution coefficient: the first is responsibility balance, ignoring the asymmetry of production-side, customer-side carbon transfer responsibility. The second is based on the technical level as the basis for responsibility sharing, and it is considered that an area with high production efficiency should be awarded, and the responsibility of the producer should be reduced. However, because the power generation efficiency is higher in the economically developed areas, the formula is easy to bias the economically developed areas and is not beneficial to the development of the economically underdeveloped areas. And the third type is based on the benefit principle, couples economic benefits and ecological environment responsibility, and distributes the responsibility of the production side and the consumption side according to the distribution principle of 'great benefits and responsibility'. But the method weakens the production side responsibility and is not beneficial to low-carbon transformation in the power industry.
In summary, the existing methods have the following disadvantages: (1) most of the carbon emission in the power industry is calculated from the power generation side, and the carbon transfer caused by inter-provincial power transmission is ignored. (2) Even if the carbon transfer in the power industry is considered, most methods lack the consideration of the whole period of the industrial chain, and the estimated carbon transfer amount is underestimated. (3) In terms of carbon transfer responsibility sharing, the method is mostly based on a single technology or economic standard, and the regional fairness of the carbon transfer responsibility sharing and the low-carbon development guidance of the power industry cannot be considered at the same time, so that the method is not favorable for fair and reasonable distribution of carbon quota, and is not favorable for regional cooperative emission reduction.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a method and a terminal for calculating the carbon emission responsibility in the power industry, which can distribute the carbon emission responsibility in the power industry more fairly and reasonably.
In order to solve the technical problem, the invention adopts a technical scheme that:
a method for calculating carbon emission responsibility in the power industry comprises the following steps:
determining 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 region to be calculated;
calculating self-produced self-use power, called power and called power corresponding to the region to be calculated based on a power industry full-period point-current model and a power industry full-period carbon emission model 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;
calculating carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, and determining the carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated;
and calculating to obtain the carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-produced self-service power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a newly-added investment asset efficiency and benefit evaluation terminal comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the following steps:
determining 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 region to be calculated;
calculating self-produced self-use power, called power and called power corresponding to the region to be calculated based on a power industry full-period point-current model and a power industry full-period carbon emission model 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;
calculating carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, and determining the carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated;
and calculating to obtain the carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-generated self-used power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part.
The invention has the beneficial effects that: the method comprises the steps of calculating self-produced self-use power, called power and called power corresponding to an area to be calculated based on an electric power industry full-period point-flow model and an electric power industry full-period carbon emission model according to an inter-domain electric power transmission line loss rate, an intra-domain electric power transmission line loss rate, an electric power plant power supply coal consumption coefficient, an electric power plant power supply emission coefficient and a coal supply emission coefficient, calculating a carbon emission responsibility sharing factor of a power calling part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, subsequently calculating an electric power industry carbon emission responsibility based on the carbon emission responsibility sharing factor, calculating implicit carbon emission of the electric power industry based on a full-period visual angle, facilitating correct assessment of electric power industry carbon emission, subdividing net carbon transfer caused by inter-domain electric power transmission into a consumption side calling part and a production side calling part, subdividing responsibility sharing standards, facilitating reasonable definition of responsibility of production side and consumption side responsibility, considering economic and technical standards simultaneously, and considering fairness and emission reduction cooperative guidance of a region, thereby distributing carbon emission fairness of the electric power industry reasonably.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for calculating carbon emission responsibility in the power industry according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a carbon emission responsibility calculation terminal in the power industry according to an embodiment of the present invention;
fig. 3 is a schematic diagram of classification of carbon emissions in the power industry in a method for calculating carbon emission responsibility in the power industry according to an embodiment of the present invention.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, an embodiment of the present invention provides a method for calculating carbon emission responsibility in an electric power industry, including:
determining 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 region to be calculated;
calculating self-produced self-use power, called power and called power corresponding to the region to be calculated based on a power industry full-period point-current model and a power industry full-period carbon emission model 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;
calculating carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, and determining the carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated;
and calculating to obtain the carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-produced self-service power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part.
From the above description, the beneficial effects of the present invention are: the method comprises the steps of calculating self-produced self-use power, called power and called power corresponding to an area to be calculated based on an electric power industry full-period point-flow model and an electric power industry full-period carbon emission model according to an inter-domain electric power transmission line loss rate, an intra-domain electric power transmission line loss rate, an electric power plant power supply coal consumption coefficient, an electric power plant power supply emission coefficient and a coal supply emission coefficient, calculating a carbon emission responsibility sharing factor of a power calling part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, subsequently calculating an electric power industry carbon emission responsibility based on the carbon emission responsibility sharing factor, calculating implicit carbon emission of the electric power industry based on a full-period visual angle, facilitating correct assessment of electric power industry carbon emission, subdividing net carbon transfer caused by inter-domain electric power transmission into a consumption side calling part and a production side calling part, subdividing responsibility sharing standards, facilitating reasonable definition of responsibility of production side and consumption side responsibility, considering economic and technical standards simultaneously, and considering fairness and emission reduction cooperative guidance of a region, thereby distributing carbon emission fairness of the electric power industry reasonably.
Further, the determining of 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 corresponding to the region to be calculated includes:
establishing an electric power generation balance relation of the region according to the generated energy, the input electric quantity, the electric power adjustment quantity, the electric power consumption and the intra-region power supply loss of the region;
establishing a coal supply and consumption balance relation of the region according to the self-use part in the generated energy of the region and the input electric quantity;
constructing a power industry full-period point-flow model according to the power generation balance relation and the coal supply and consumption balance relation;
and constructing a power industry full-period carbon emission model according to the power partial emission and the coal partial emission of the region.
As can be seen from the above description, the implicit carbon emission refers to the total amount of direct and indirect carbon dioxide emissions released for producing a certain product in the whole production chain, before the carbon emission responsibility of the power industry is calculated, the implicit carbon emission and the flow direction of each link in the power industry need to be determined, so that a full-period point-flow model of the power industry is constructed according to the power generation balance relation and the coal supply and consumption balance relation, power transmission (i.e., active flow) between each region (i.e., unit point) and each region in China is carved out, then a full-period carbon emission model of the power industry is constructed according to the partial power emission and the partial coal emission of the regions, and the two models are used as the basis for subsequently calculating the carbon emission responsibility, and the emission reduction responsibility of the power trans-regional flowing implicit carbon and the production area and the consumption area is more comprehensively considered.
Further, the establishing of the power generation balance relationship of the region according to the power generation amount, the input power amount, the power transfer amount, the power consumption amount and the intra-region power supply loss amount of the region comprises:
ES r ＝(EP rs -EO r )×(1-λ r )；
in the formula, EP rs Indicating the amount of power generation, EI, of the region r to be calculated rs Indicates the input electric quantity, EO, of the s region to the region r to be calculated r Indicating the power transfer amount, EC, of the region r to be calculated r Representing the amount of power used in the region r to be calculated, EWr representing the amount of power loss in the domain of the region r to be calculated, ES r Representing the self-used part, λ, of the power generation in the region r to be calculated r Representing the intra-domain power transmission line loss rate of the region r to be calculated;
the establishment of the coal supply and consumption balance relationship of the region according to the self-use part and the input electric quantity in the electric energy generation of the region comprises the following steps:
in the formula, CC r Representing the coal consumption, ce, of the total electricity consumption of the area r to be calculated r Power plant coal consumption coefficient, λ, representing the region r to be calculated r ' s Representing the inter-domain power transmission line loss rate, ce, of the r and s regions to be calculated s Power plant power coal consumption coefficient, cs, representing the s region r Represents the ratio of coal in the region, ci, in the total amount of coal for electric power in the region r to be calculated rn The ratio of the coal transferred to the region r to be calculated in the n region to the total amount of the coal for electric power is represented.
From the above description, the power industry full-period point-flow model established in the above manner can embody power production of a certain region, part of the power production is self-used by the region, and part of the power production coal is called out to other regions, part of the power production coal of the certain region is from the region, part of the power production coal of the certain region is from other coal dispatching regions, and part of the power consumption of the certain region is from other power transmission regions, so that the power cross-region flowing hidden carbon and emission reduction responsibility of a production place and a consumption place are more comprehensively considered, and the power generation side and the power consumption side are promoted to cooperatively reduce emission.
Further, the constructing a power industry full-cycle carbon emission model according to the power partial emission and the coal partial emission of the region comprises:
CE r ＝CEE r +CEC r ；
in the formula, CE r Indicating the complete cycle carbon emissions, CEE, of the electric industry r Indicating partial discharge of power, CEC r Denotes the partial discharge of coal, ef r Power plant supply emission coefficient, ef, representing the region r to be calculated s Representing the plant power supply emission coefficient, cf, in the s region r Representing the coal supply emission coefficient, cf, of the region r to be calculated n Representing the coal supply emission coefficient, cf, in the n region s Representing the coal supply emission coefficient for the s-region.
According to the description, carbon emission can be generated in various energy activities in the power industry, and the power industry full-period carbon emission model can be known to comprise partial power emission and partial coal emission according to the constructed power industry full-period point-flow model, so that the power industry full-period carbon emission can be accurately plotted.
Further, the determining of 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 corresponding to the region to be calculated includes:
acquiring power transmission loss between nationwide areas;
determining the ratio of the power transmission loss between the nationwide areas to the power calling out as the inter-domain power transmission line loss rate corresponding to the area to be calculated;
acquiring intra-domain power transmission and distribution loss of the region to be calculated and non-called electric quantity of the region, and determining the proportion of the intra-domain power transmission and distribution loss to the non-called electric quantity of the region as intra-domain power transmission line loss rate;
acquiring the thermal power ratio, the thermal power standard coal consumption and the standard coal conversion coefficient of the area to be calculated, and calculating the power supply coal consumption coefficient of the power plant according to the thermal power ratio, the thermal power standard coal consumption and the standard coal conversion coefficient;
acquiring a coal emission factor, and calculating a power supply emission coefficient of the power plant according to the power supply coal consumption coefficient of the power plant and the coal emission factor;
the method comprises the steps of obtaining methane emission of unit coal production, coal spontaneous combustion emission of unit coal production and energy consumption emission of unit coal mining and selecting process, and calculating coal supply emission coefficient according to the methane emission of unit coal production, the coal spontaneous combustion emission of unit coal production and the energy consumption emission of unit coal mining and selecting process.
As can be seen from the above description, through the above coefficient calculation, the coefficients can be subsequently substituted into the model to calculate the self-generated power, the called power, and the called power corresponding to the region to be calculated, which serve as the basis for the subsequent carbon emission responsibility sharing.
Further, the calculating self-generated self-used power, call-out power and call-in power corresponding to the area to be calculated 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 based on the power industry full-cycle point-flow model and the power industry full-cycle carbon emission model comprises:
the self-generated self-used power CES r Comprises the following steps:
in the formula, ES r Representing the self-use part, lambda, of the power generation of the region r to be calculated r Represents the intra-domain power transmission line loss rate, ef, of the region r to be calculated r Representing the power plant power supply emission coefficient, ce, of the region r to be calculated r Representing the power plant power coal consumption coefficient, cs, of the region r to be calculated r Represents the coal ratio, cf, of the region in the total amount of the coal for electric power of the region r to be calculated r Representing the coal supply discharge coefficient, ci, of the region r to be calculated rn The proportion of the coal transferred to the region r to be calculated in the n regions to the total amount of the coal used for electric power, cf n Representing the coal supply emission coefficient of the n region;
the calling-out power CEO r Comprises the following steps:
in the formula, EO r Indicating the amount of power extracted, ef, of the region r to be calculated r Represents the power plant power supply emission coefficient, ce, of the region r to be calculated r Representing the power plant power supply coal consumption coefficient of the region r to be calculated;
the modulated power CEI rs Comprises the following steps:
CEI rs ＝∑ s EI rs /(1-λ′ rs )×ef s +∑ s EI rs /(1-λ′ rs )×ce s ×cf s ；
in the formula, EI rs Denotes the input quantity of electricity, λ, from the s region to the region r to be calculated r ' s Representing the inter-domain power transmission line loss rate, ef, of the r and s regions to be calculated s Representing the power plant power supply emission coefficient, ce, in the s region s Representing the power plant power coal consumption coefficient, cf, in the s region s Representing the coal supply emission coefficient for the s region.
From the above description, the self-generated electricity, the call-in electricity and the call-out electricity of the area to be calculated are calculated in the above manner, and the whole period of the industrial chain can be fully considered, so that the accuracy and the reliability of the carbon emission responsibility calculation are improved.
Further, the calculating the carbon emission responsibility sharing factor of the power calling-out part corresponding to the area to be calculated based on the benefit principle and the efficiency principle includes:
calculating a first baseterm responsibility sharing factor corresponding to the area to be calculated based on a profit principle;
calculating a second baseterm responsibility sharing factor corresponding to the region to be calculated based on an efficiency principle;
and calculating the carbon emission responsibility sharing factor of the power calling part corresponding to the area to be calculated according to the first and second base period responsibility sharing factors.
According to the description, the corresponding base period responsibility sharing factors are respectively calculated according to the income principle and the efficiency principle, then the carbon emission responsibility sharing factors of the power dispatching part are calculated according to the first base period responsibility sharing factor and the second base period responsibility sharing factor, economic and technical standards can be considered at the same time, the fairness among regions and the cooperative emission reduction guidance are considered, and therefore the fairness and the rationality of the carbon emission responsibility sharing are improved.
Further, the calculating a first contribution factor of the deadline responsibility corresponding to the area to be calculated based on the profit rule includes:
A＝max{GDP i /C i ,i＝1,2,3...n}-min{GDP i /C i ,i＝1,2,3...n}；
in the formula (I), the compound is shown in the specification,
representing a first base period responsibility sharing factor, B representing the electrical efficiency of the base period of the region r to be calculatedDifference value between benefits and domestic average power utilization benefits, wherein A represents difference value between highest power utilization benefit and lowest power utilization benefit of domestic region in the base period, and GDP i Indicates the total term production value of the i region, C i Indicating the power consumption of i region at the base period, n indicating the number of all regions, GDP r Representing the total value of the basal production, C, of the region r to be calculated r Representing the base-period power consumption of the region r to be calculated;
the calculating of the second contribution factor of the basic period corresponding to the region to be calculated based on the efficiency principle comprises:
in the formula (I), the compound is shown in the specification,
representing a second baselife responsibility sharing factor, EEV r Representing the value, EV, of the power etc. of the area r to be calculated r Representing the power equivalent value, FC, of the region r to be calculated m Represents the consumption of fuel m, σ, in thermal power generation m The index coal coefficient is represented, and the FEV represents the total thermal power generation amount;
carbon emission responsibility sharing factor alpha of power calling part corresponding to the area to be calculated r Comprises the following steps:
as can be seen from the above description, the determination of the carbon emission responsibility sharing factor is a distribution method based on the benefit principle and the efficiency principle, so as to take account of the regional fairness of the carbon transfer responsibility sharing and the low-carbon development guidance of the power industry, and based on the benefit principle, the area with the larger GDP value generated by the unit power consumption reflects that the more the income generated by the unit power consumption is, the higher the responsibility proportion is, and based on the efficiency principle, the higher the thermal power generation efficiency is, the lower the producer responsibility proportion is, so that the calculated carbon emission responsibility sharing factor can better represent the responsibility sharing of the inter-domain carbon transfer.
Further, the calculating the carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-generated and self-used power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part comprises:
in the formula, CER r Representing the responsibility, CES, for the carbon emission of the area r to be calculated r Indicating said self-generated self-consumed power, CEO r Representing the call-out power, CEI rs Representing the modulated power, a r A carbon emission responsibility sharing factor, 1-alpha, representing the power calling part s A carbon emission responsibility distribution factor representing the power call-in portion.
As can be seen from the above description, the carbon emission responsibility of the regional power industry should be composed of three parts, that is, according to the beneficial subject of power transmission: the responsibility of producing and meeting the carbon emission of the electric power consumed locally is born locally; the local electric power calling meets the local consumption part, the local electric power selling benefits, and the electric power calling hidden carbon only bears the local benefit part; and the other areas call in the electric power to meet the local consumption part, consume the other areas call in the electric power to benefit, and need to bear the carbon emission responsibility of eliminating the power transmission benefit part of the power generation area, so the carbon emission responsibility of the electric power industry calculated according to the formula can subdivide the net carbon transfer caused by the inter-area power transmission into a consumption side call-in part and a production side call-out part, subdivide the responsibility sharing standard, and contribute to the fair and reasonable definition of the responsibility of the production side and the consumption side.
Referring to fig. 2, another embodiment of the present invention provides a power industry carbon emission responsibility calculation terminal, including a memory, a processor, and a computer program stored on the memory and operable on the processor, where the processor implements the steps of the power industry carbon emission responsibility calculation method when executing the computer program.
The method and the terminal for calculating the carbon emission responsibility in the power industry can be suitable for an inter-provincial carbon transfer scene, and are explained by the following specific implementation modes:
example one
In this embodiment, the description is made by taking the region as a province, the region may also be an administrative unit such as a city, a district, a county, etc., or may be a region divided artificially, and the province is used herein only as an example, and the definition of the region cannot be limited thereby.
Referring to fig. 1 and fig. 3, a method for calculating carbon emission responsibility in the power industry according to the embodiment includes the steps of:
s1, establishing a balance relation of provincial power generation according to the generated energy, input electric quantity, electric power adjusting quantity, power consumption and provincial power supply loss of the provincial, specifically:
ES r ＝(EP rs -EO r )×(1-λ r )；
in the formula, EP rs Indicating the amount of power generated, EI, of the province r to be calculated rs Indicating the input electric quantity, EO, of s province to r province of the region to be calculated r Indicating the amount of power transferred, EC, for the province r to be calculated r Representing the power consumption of the province r to be calculated, EWr representing the intra-provincial power loss of the province r to be calculated, ES r Representing the self-used part of the generated energy, λ, of the province rSec to be calculated r Representing the intra-provincial power transmission line loss rate of the province r province to be calculated;
for each province, there is a power balance relationship, i.e. the first formula above, the total usage of the provinces r to be calculatedThe electric quantity includes the self-generating electricity consumption and the provincial income amount, which can be expressed as the second formula, assuming that the provincial power transmission line loss rate of the province r is λ r If this partial loss is distributed to the power generation side, the amount of self-power consumption (i.e., ES) is saved r ) Can be expressed as the third formula above.
S2, establishing a provincial coal supply and consumption balance relation according to the self-use part in the generated energy of the province and the input electric quantity;
based on the full-period analysis (LCA) view of the power industry, the carbon emission of the power industry is accounted by considering not only the direct carbon emission generated by power plant power generation, but also the accompanying effect related to the power plant power generation, and the carbon emission generated by each energy activity in the power industry chain is tracked. At present, the electric power production forms in China mainly comprise thermal power generation (coal power), hydroelectric power generation, wind power generation, solar power generation, nuclear power generation and the like, and except coal, other resources cannot be allocated and transported and almost do not produce emission. Based on this, the power industry full-period point-flow model should also include partial discharge of coal related to power, and according to the power generation and utilization balance relationship, the power coal also has a balance relationship, that is, a coal supply and consumption balance relationship, specifically:
in the formula, CC r Representing the total power consumption, ce, of the province r to be calculated r Power plant power supply coal consumption coefficient, lambda, representing the province r to be calculated r ' s Representing inter-provincial power transmission line loss rate, ce, of provinces r and s s Represents the power plant power supply coal consumption coefficient of s province, cs r Represents the ratio of the coal in the total amount of the power coal to calculate the province r, ci rn The ratio of the coal in the n province, which is transferred to the r province to be calculated, to the total amount of the coal used for electric power is expressed.
S3, constructing a power industry full-period point-flow model according to the power generation balance relation and the coal supply and consumption balance relation;
the power industry full period point-flow model is a model for depicting each province (unit point) and power transmission (active flow) among the provinces in China, and in the model, the interrelation of each province (unit point) is connected by power transmission (active flow). The electric power industry full-cycle point-to-flow model may include four pieces of information: (1) the power production of the province r to be calculated is partially self-used by the province, and is partially called out to other provinces; (2) the coal for power production of the province r to be calculated comes from the province; (3) the coal for power production of the province r to be calculated is partially from other coal distribution provinces; (4) the power utilization part of the province r to be calculated comes from other power transmission provinces.
S4, constructing a power industry full-period carbon emission model according to the power partial emission and the coal partial emission of the provinces;
carbon emission can be generated in various energy activities in the power industry, and the power industry full-cycle carbon emission obtained according to the power industry full-cycle point-flow model comprises power partial emission and coal partial emission, specifically:
CE r ＝CEE r +CEC r ；
in the formula, CE r Indicating the complete cycle carbon emissions, CEE, of the electric industry r Indicating partial discharge of power, CEC r Denotes the partial discharge of coal, ef r Representing the power supply emission coefficient, ef, of the power plant of the province rprovince to be calculated s Represents the power plant power supply emission coefficient, cf, of province s r Represents the coal supply emission coefficient, cf, of the province r to be calculated n Represents the coal supply emission coefficient, cf, of n provinces s Representing the coal supply emission coefficient of province s.
S5, determining 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 provinces to be calculated, and specifically comprising the following steps:
s51, acquiring power transmission loss among nationwide provinces;
specifically, the difference between the power call-out and call-in data in the annual book of Chinese energy statistics is determined as the power transmission loss between the nationwide provinces.
S52, determining the proportion of the power transmission loss among the nationwide provinces to the power calling out as the inter-provincial power transmission line loss rate corresponding to the province to be calculated;
s53, acquiring the intra-provincial power transmission and distribution loss amount of the province to be calculated and the un-dispatched power of the province, and determining the proportion of the intra-provincial power transmission and distribution loss amount to the un-dispatched power of the province as an intra-provincial power transmission line loss rate;
s54, acquiring the thermal power proportion, the thermal power standard coal consumption and the standard coal conversion coefficient of the province to be calculated, and calculating the power plant power supply coal consumption coefficient according to the thermal power proportion, the thermal power standard coal consumption and the standard coal conversion coefficient; the power plant power supply coal consumption coefficient refers to the coal consumption of average unit power supply of all types of power plants in a certain province, and the coal consumption is only reflected in thermal power, so that the power plant power supply coal consumption only considers the thermal power part;
specifically, the proportion of thermal power of the province to be calculated is obtained from the Chinese energy statistics yearbook, the thermal power standard coal consumption of the province to be calculated is obtained from the Chinese power yearbook, and the standard coal conversion coefficient is obtained from the IPCC national greenhouse gas list guide;
wherein the power plant power supply coal consumption coefficient ce r Comprises the following steps:
ce r ＝fr r ×fc r /μ；
in the formula fr r Representing the thermal power ratio, fc r And expressing the thermal power standard coal consumption, and mu expresses a standard coal conversion coefficient.
If the power supply coal consumption coefficient ce of the power plant of the province s needs to be calculated s And if the calculation method is consistent with the calculation method, calculating according to the thermal power ratio of the province s, the thermal power standard coal consumption and the standard coal conversion coefficient.
S55, obtaining a coal emission factor, and calculating a power supply emission coefficient of the power plant according to the power supply coal consumption coefficient of the power plant and the coal emission factor; the power supply emission coefficient of a power plant refers to the emission generated by average unit power supply of all types of power plants in a certain province, and as carbon emission is hardly generated in the production processes of hydropower, wind power, nuclear power and the like, the power supply emission of the power plant only considers the thermal power part;
specifically, obtaining a coal emission factor from the IPCC national greenhouse gas list guide;
wherein the power supply emission coefficient ef of the power plant r Comprises the following steps:
ef r ＝ce r ×φ；
in the formula, phi represents a coal emission factor.
If the power supply emission coefficients of other provinces of power plants are calculated, and so on.
And S56, obtaining methane emission of unit coal production, coal spontaneous combustion emission of unit coal production and energy consumption emission of unit coal mining and selecting process, and calculating coal supply emission coefficient according to the methane emission of unit coal production, the coal spontaneous combustion emission of unit coal production and the energy consumption emission of unit coal mining and selecting process.
The coal supply emission comprises two parts of coal production and transportation, and the process is mainly production emission. Given the availability of data, this is moderately simplified to represent the production emission factor. The coal production process has three links of coal mine methane emission, coal spontaneous combustion emission and mining and dressing energy consumption emission.
The coal supply emission coefficient cf is:
cf＝cfmc+cfcc+cfec；
wherein cfmc represents the methane emission produced by the unit of coal, cfcc represents the coal spontaneous combustion emission produced by the unit of coal, and cfec represents the energy consumption emission in the coal mining and separation process;
in an alternative embodiment, the methane emission of the unit coal production, the spontaneous combustion emission of the unit coal production and the energy consumption emission of the unit coal mining and selecting process are respectively 4kg/t, 20.1kg/t and 25.32kg/t according to the existing research.
S6, calculating self-produced self-used power, called power and called power corresponding to the province to be calculated based on a power industry full-period point-current model and a power industry full-period carbon emission model according to the inter-province power transmission line loss rate, the intra-province 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, and specifically:
the self-generated self-used power CES r Comprises the following steps:
in the formula, ES r Representing the self-used part of the generated energy, λ, of the province rSec to be calculated r Represents the provincial power transmission line loss rate, ef, of the province r to be calculated r Representing the power plant power supply emission coefficient, ce, of the province r to be calculated r Representing the coefficient of power supply coal consumption of the power plant, cs, of the province r to be calculated r Represents the proportion, cf, of the coal in the total amount of the coal used for electric power for calculating the province r r Represents the coal supply discharge coefficient, ci, of the province r province to be calculated rn The ratio of the coal in n province to r province to be calculated to the total coal amount in the electric power, cf n Representing the coal supply emission coefficient of n provinces;
the calling-out power CEO r Comprises the following steps:
in the formula, EO r Indicating the amount of power transferred, ef, of the province to be calculated r Representing the power plant power supply emission coefficient, ce, of the province r to be calculated r Representing the power plant power supply coal consumption coefficient of the province r to be calculated;
the modulated power CEI rs Comprises the following steps:
CEI rs ＝∑ s EI rs /(1-λ′ rs )×ef s +∑ s EI rs /(1-λ′ rs )×ce s ×cf s ；
in the formula, EI rs Denotes the input quantity of electricity from the s province to the r province to be calculated, lambda r ' s Indicates waiting to be countedInter-provincial power transmission line loss rate, ef, calculated from provinces r and s s Expressing the power plant power supply emission coefficient, ce, of province s s Representing the power plant power coal consumption coefficient, cf, of the province s s Representing the coal supply emission coefficient of province s.
As shown in FIG. 3, let us say that the carbon emissions caused by the r-power saving industrial production process to meet local and foreign requirements are CES r And CEO r The carbon emission caused by local production and foreign calling of the power consumption is CES r And CEI rs . The emission requirement in the power production side is equal to the emission value in the province of the consumption side, and the part of power production and consumption occur in the same geographical space without carbon transfer. The power is transferred into and out, carbon emission cross-regional flow exists, and the outsourced province is transferred into CEI rs Adjust CEO with Ben province r The difference between the two forms represents the provincial net carbon transfer level of the power industry, so the net carbon transfer measurement of the r power-saving industry can be represented as:
CET r ＝CEO r -CEI rs ；
in the formula, CET r Representing the net carbon transfer of the electrical power of the province r to be calculated.
If CET r If the carbon content is positive, the outflow hidden carbon of the product in the area is larger than the inflow hidden carbon, and the net carbon is transferred into the area; otherwise, the area is a clean carbon transfer-out area; if CET r If the carbon is zero, the carbon is transferred into and out of equilibrium. Since the power transmission imbalance across provinces is normal, the carbon transfer between provinces is usually in a state of net carbon transfer-in and transfer-out. The inter-provincial electric power net carbon transfer is commonly carried out by a power generation side and a power utilization side, the net carbon transfer to a ground (the power generation side) is subject to the reduction of carbon emission responsibility, the net carbon transfer-out ground (the power utilization side) is subject to the increase of carbon emission responsibility, and the sum of the reduction and the increase of the carbon emission responsibility of the net carbon transfer-in ground and the carbon emission responsibility of the net carbon transfer-out ground is CET.
S7, calculating the carbon emission responsibility sharing factor of the power dispatching part corresponding to the province to be calculated based on the benefit principle and the efficiency principle, and determining the carbon emission responsibility sharing factor of the power dispatching part corresponding to the province to be calculated, wherein the method specifically comprises the following steps:
s71, calculating a first base period responsibility sharing factor corresponding to the province to be calculated based on a profit principle;
based on the benefit principle, the larger the GDP value generated by unit power consumption is, the more the benefit generated by the unit power consumption is, the higher the proportion of responsibility is, therefore, the highest value of the power utilization benefit of the base-period provincial region is selected as the reference for calculation, specifically:
A＝max{GDP i /C i ,i＝1,2,3...n}-min{GDP i /C i ,i＝1,2,3...n}；
in the formula (I), the compound is shown in the specification,
the method comprises the steps of representing a first base period responsibility sharing factor, B representing the difference between the base period electricity utilization benefit of the province r to be calculated and the domestic average electricity utilization benefit, A representing the difference between the highest electricity utilization benefit and the lowest electricity utilization benefit of the province territory in the base period, and GDP i Indicates the total value of the basal production of i province, C i Representing the base power consumption of i province, n representing the number of all provinces, GDP r Represents the base time production total value, C, of the province r to be calculated r Representing the base period electricity consumption of province r province to be calculated;
normalizing the ratio of B to A to obtain a first base period responsibility sharing factor
By doing so, the extreme value 1 under the principle can be avoided, namely, all responsibility is assumed, and the responsibility of inter-provincial carbon transfer is better reflected.
S72, calculating a second base period responsibility sharing factor corresponding to the province to be calculated based on an efficiency principle;
based on the efficiency principle, the higher the thermal power generation efficiency is, the lower the proportion of the producer responsibility is, so that the electric equivalent value and the equivalent value are selected for calculation, specifically:
in the formula (I), the compound is shown in the specification,
representing a second baselife responsibility sharing factor, EEV r Representing the value of the province to be calculated, province, power, etc., EV r Representing the power equivalent value, FC, of the province, rprovince, to be calculated m Represents the consumption of fuel m, σ, in thermal power generation m The index coal coefficient is represented, and the FEV represents the total thermal power generation amount;
s73, calculating a carbon emission responsibility sharing factor of the power calling part corresponding to the province to be calculated according to the first and second base term responsibility sharing factors;
wherein, the carbon emission responsibility sharing factor alpha of the power calling part corresponding to the province to be calculated r Comprises the following steps:
s8, calculating to obtain the carbon emission responsibility of the power industry corresponding to the province to be calculated based on the self-produced self-use power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part;
according to the beneficial subject constitution of power transmission, the carbon emission responsibility of provincial and regional power industries is composed of three parts: (1) power carbon emission responsibility for producing and satisfying local consumption is held locally (CES) r ) (ii) a (2) The present power saving is called out to satisfy the local consumption part (CEO) r ). The electricity calling out hidden carbon only bears the local benefit part due to the local benefit of the sold electricity;(3) outsourcing to power local consumption segment (CEI) rs ). The external province of consumption calls into electric power and benefits, should undertake the carbon emission responsibility of rejecting the power generation and saving transmission benefit part, specific:
in the formula, CER r Representing the responsibility of carbon emission, CES, of the power industry for the province r of the province to be calculated r Indicating said self-generated self-consumed power, CEO r Representing the call-out power, CEI rs Representing the modulated power, a r A carbon emission responsibility sharing factor, 1-alpha, representing the power calling part s A carbon emission responsibility distribution factor, alpha, representing the power-calling part s A carbon emission responsibility distribution factor representing the power callout portion of the province s.
The carbon emission responsibility calculation method for the power industry is applied to the carbon emission responsibility calculation scene of the power industry in Fujian province as follows:
the case is based on the relevant data of the 'Chinese energy statistics yearbook', the 'Chinese power statistics yearbook' and the 'Fujian province statistics yearbook' in 2021. The data of the model application case is replaced to other years and areas, and the carbon emission responsibility sharing conditions of the power industry in other provinces, cities and areas can be analyzed.
Acquiring relevant data of electricity production, consumption and calling in and out in 2020 year of China and Fujian electricity-saving industry from the statistical yearbook, and calculating inter-provincial electricity transmission line loss rate, intra-provincial electricity transmission line loss rate, power plant power supply coal consumption coefficient, power plant power supply emission coefficient and coal supply emission coefficient, wherein the data are shown in table 1;
TABLE 1 Fujian electric power industry full period Point-flow model and electric power industry full period carbon emission model coefficients
Calculating the scale of carbon emissions corresponding to the self-produced power, the call-out power and the call-in power of the Fujian power-saving industry based on the coefficients of Table 1, as shown in Table 2;
TABLE 2 Fujian province electric power industry carbon emissions
Based on the carbon transfer responsibility sharing standard provided by the method, respectively calculating carbon emission responsibility sharing factors of the Fujian province power industry based on the benefit and efficiency principles, wherein the carbon emission responsibility sharing factors are shown in a table 3;
TABLE 3 Fujian province electric power industry carbon emission responsibility sharing factor calculation results
The carbon emission responsibility sharing factor alpha of the province of the Fujian province is called out by the electric power according to the calculation method s 0.352, the carbon emission responsibility sharing factor 1-alpha of the Fujian power saving calling part s 0.648;
based on the above data according to
The carbon emission responsibility of the power industry of the Fujian province in 2020 can be calculated to be 90357129.662 tons.
The electric power structure of the Fujian province mainly comprises thermal power generation, hydroelectric power generation and nuclear power generation, and when the electric power production meets the requirements of the Fujian province, 2% -4% of the generated energy is called out every year. According to the current calculation method based on the production side in the power industry, the carbon emission of the power calling part is required to be borne by the Fujian province, the development of the Fujian power saving is not facilitated, carbon leakage is easy to cause, and the emission reduction responsibility is reduced. According to the method for calculating the responsibility sharing of the production side and the consumption side based on the benefit and efficiency principle, 355.783 tons of carbon emission are less born by Fujian province, and the method guides the production side and the consumption side to cooperatively reduce emission through the responsibility sharing; by the benefit and efficiency sharing principle, more beneficiaries are encouraged to bear emission reduction responsibility, elimination of low-efficiency high-energy-consumption generator sets is accelerated, and development of clean power is promoted.
The method of the invention more comprehensively considers the hidden carbon content of the electric power trans-regional flow and the emission reduction responsibility of the production place and the consumption place, and is beneficial to promoting the cooperative emission reduction of the power generation side and the power utilization side. The main difference from the existing model method can be embodied in the following points: (1) the implicit carbon emission of the power industry is calculated based on the full-period visual angle, so that the accurate evaluation of the carbon emission of the power industry is facilitated; (2) the net carbon transfer caused by inter-provincial power transmission is divided into a consumption side calling part and a production side calling part, responsibility sharing standards are divided, and fair and reasonable definition of responsibility of a production side and a consumption side is facilitated; (3) on the design of the carbon emission responsibility sharing factor, economic and technical standards are considered at the same time, and fairness and cooperative emission reduction guidance between regions are considered.
On the premise of considering the carbon inter-provincial transfer hidden in the full-period power, a fair and reasonable regional power carbon emission responsibility confirmation method is constructed, can be used for provincial carbon emission responsibility accounting in the power industry of China, and provides basic support for carbon emission right quota allocation in the provincial power industry.
Example two
Referring to fig. 2, the electric power industry carbon emission responsibility calculation terminal of the embodiment includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, each step of the electric power industry carbon emission responsibility calculation method in the first embodiment is implemented.
In summary, according to the carbon emission responsibility calculation method and the terminal in the power industry provided by the invention, 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 corresponding to the region to be calculated are determined; calculating self-produced self-use power, called power and called power corresponding to the region to be calculated based on a power industry full-period point-current model and a power industry full-period carbon emission model 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; calculating carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, and determining the carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated; the method comprises the steps of calculating and obtaining the carbon emission responsibility of the power industry corresponding to a region to be calculated based on the self-produced self-used power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part, calculating and calculating the implicit carbon emission of the power industry based on a full-period visual angle, and contributing to accurate evaluation of the carbon emission of the power industry.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for calculating carbon emission responsibility in the power industry is characterized by comprising the following steps:
determining 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 region to be calculated;
calculating self-produced self-use power, called power and called power corresponding to the region to be calculated based on a power industry full-period point-current model and a power industry full-period carbon emission model according to 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;
calculating carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated based on a benefit principle and an efficiency principle, and determining the carbon emission responsibility sharing factors of the power dispatching part corresponding to the area to be calculated;
and calculating to obtain the carbon emission responsibility of the power industry corresponding to the area to be calculated based on the self-produced self-service power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part.
2. The method of claim 1, wherein the determining 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 corresponding to the region to be calculated comprises:
establishing an electric power generation balance relation of the region according to the generated energy, the input electric quantity, the electric power adjustment quantity, the electric power consumption and the intra-region power supply loss of the region;
establishing a coal supply and consumption balance relation of the region according to the self-use part in the generated energy of the region and the input electric quantity;
constructing a power industry full-period point-flow model according to the power generation balance relation and the coal supply and consumption balance relation;
and constructing a power industry full-period carbon emission model according to the power partial emission and the coal partial emission of the region.
3. The method of claim 2, wherein the establishing of the power generation balance relationship of the region according to the power generation amount, the input power amount, the power transfer amount, the power consumption amount and the intra-region power supply loss amount of the region comprises:
ES r ＝(EP rs -EO r )×(1-λ r )；
in the formula, EP rs Indicating the amount of power generation, EI, of the region r to be calculated rs Indicates the input electric quantity, EO, of the s region to the region r to be calculated r Indicating the power transfer amount, EC, of the region r to be calculated r Representing the amount of power used in the region r to be calculated, EWr representing the amount of power loss in the domain of the region r to be calculated, ES r Representing the self-use part, lambda, of the power generation of the region r to be calculated r Representing the intra-domain power transmission line loss rate of the region r to be calculated;
the establishment of the coal supply and consumption balance relationship of the region according to the self-use part and the input electric quantity in the electric energy generation of the region comprises the following steps:
in the formula, CC r Representing the coal consumption, ce, of the total electricity consumption of the area r to be calculated r Power plant coal consumption coefficient, λ, representing the region r to be calculated r ' s Representing the inter-domain power transmission line loss rate, ce, of the r and s regions to be calculated s Power plant power coal consumption coefficient, cs, representing the s region r Represents the ratio of coal in the region, ci, in the total amount of coal for electric power in the region r to be calculated rn The ratio of the coal transferred to the region r to be calculated in the n region to the total amount of the coal for electric power is represented.
4. The electric power industry carbon emission responsibility calculation method according to claim 2, wherein the constructing the electric power industry full-period carbon emission model according to the electric power partial emission and the coal partial emission of the region comprises:
CE r ＝CEE r +CEC r ；
in the formula, CE r Indicating the complete cycle carbon emissions, CEE, of the electric industry r Indicating partial discharge of power, CEC r Denotes the partial discharge of coal, ef r Power plant supply emission coefficient, ef, representing the region r to be calculated s Representing the plant power supply emission coefficient, cf, in the s region r Representing the coal supply emission coefficient, cf, of the region r to be calculated n Representing the coal supply emission coefficient, cf, for n regions s Representing the coal supply emission coefficient for the s region.
5. The method of claim 1, wherein the determining of 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 corresponding to the area to be calculated comprises:
acquiring power transmission loss among nationwide domains;
determining the proportion of the inter-national electric power transmission loss to the electric power calling out as the inter-regional electric power transmission line loss rate corresponding to the region to be calculated;
acquiring intra-domain power transmission and distribution loss of the region to be calculated and non-called electric quantity of the region, and determining the proportion of the intra-domain power transmission and distribution loss to the non-called electric quantity of the region as intra-domain power transmission line loss rate;
acquiring the thermal power ratio, the thermal power standard coal consumption and the standard coal conversion coefficient of the area to be calculated, and calculating the power supply coal consumption coefficient of the power plant according to the thermal power ratio, the thermal power standard coal consumption and the standard coal conversion coefficient;
acquiring a coal emission factor, and calculating a power supply emission coefficient of the power plant according to the power supply coal consumption coefficient of the power plant and the coal emission factor;
the method comprises the steps of obtaining methane emission of unit coal production, coal spontaneous combustion emission of unit coal production and energy consumption emission of unit coal mining and selecting process, and calculating coal supply emission coefficient according to the methane emission of unit coal production, the coal spontaneous combustion emission of unit coal production and the energy consumption emission of unit coal mining and selecting process.
6. The electric power industry carbon emission responsibility calculation method according to claim 1, wherein the calculating the self-generated power, the call-out power and the call-in power corresponding to the area to be calculated according to the inter-domain power transmission line loss rate, the intra-domain power transmission line loss rate, the power plant power coal consumption coefficient, the power plant power emission coefficient and the coal supply emission coefficient based on the electric power industry full-period point-flow model and the electric power industry full-period carbon emission model comprises:
the self-generated self-used power CES r Comprises the following steps:
in the formula, ES r Representing the self-use part, lambda, of the power generation of the region r to be calculated r Represents the intra-domain power transmission line loss rate, ef, of the region r to be calculated r Representing the power plant power supply emission coefficient, ce, of the region r to be calculated r Representing the power plant power coal consumption coefficient, cs, of the region r to be calculated r Represents the coal ratio, cf, of the region in the total amount of the coal for electric power of the region r to be calculated r Representing the coal supply emission coefficient, ci, of the region r to be calculated rn Represents the proportion of the coal transferred to the region r to be calculated in the n regions to the total amount of the coal used for electric power, cf n Representing the coal supply emission coefficient of the n region;
the calling-out power CEO r Comprises the following steps:
in the formula, EO r Indicating the amount of power extracted, ef, of the region r to be calculated r Representing the power plant power supply emission coefficient, ce, of the region r to be calculated r Representing the power plant power supply coal consumption coefficient of the region r to be calculated;
the modulated power CEI rs Comprises the following steps:
CEI rs ＝∑ s EI rs /(1-λ′ rs )×ef s +∑ s EI rs /(1-λ′ rs )×ce s ×cf s ；
in the formula, EI rs Denotes the input electric quantity, lambda ', of the s region input to the region r to be calculated' rs Represents the inter-domain power transmission line loss rate, ef, of the r and s regions to be calculated s Representing the power plant power supply emission coefficient, ce, in the s region s Representing the power plant power coal consumption coefficient, cf, in the s region s Representing the coal supply emission coefficient for the s region.
7. The method for calculating the carbon emission responsibility of the electric power industry according to claim 1, wherein the step of calculating the carbon emission responsibility sharing factor of the electric power callout part corresponding to the area to be calculated based on the benefit principle and the efficiency principle comprises the following steps:
calculating a first base term responsibility sharing factor corresponding to the area to be calculated based on a profit principle;
calculating a second baseterm responsibility sharing factor corresponding to the region to be calculated based on an efficiency principle;
and calculating the carbon emission responsibility sharing factor of the power calling part corresponding to the area to be calculated according to the first and second base period responsibility sharing factors.
8. The electric power industry carbon emission responsibility calculation method according to claim 7, wherein the calculating the first baseterm responsibility sharing factor corresponding to the area to be calculated based on the profit rule comprises:
A＝max{GDP i /C i ,i＝1,2,3...n}-min{GDP i /C i ,i＝1,2,3...n}；
in the formula (I), the compound is shown in the specification,
representing a first base period responsibility sharing factor, B representing the difference value between the base period electricity utilization benefit of the region r to be calculated and the domestic average electricity utilization benefit, A representing the difference value between the highest electricity utilization benefit and the lowest electricity utilization benefit of the region in the base period, and GDP i Indicates the total term production value of the i region, C i Indicating the power consumption of i region at the base period, n indicating the number of all regions, GDP r Representing the total value of the basal production, C, of the region r to be calculated r Representing the base-period power consumption of the region r to be calculated;
the calculating of the second contribution factor of the basic period corresponding to the region to be calculated based on the efficiency principle comprises:
in the formula (I), the compound is shown in the specification,
representing a second basetime responsibility sharing factor, EEV r Representing the value, EV, of the power etc. of the area r to be calculated r Representing the value of the power equivalent, FC, of the region r to be calculated m Hair showing firepowerConsumption of fuel m, σ, in electricity m The index coal coefficient is represented, and the FEV represents the total thermal power generation amount;
carbon emission responsibility sharing factor alpha of power calling part corresponding to the area to be calculated r Comprises the following steps:
9. the electric power industry carbon emission responsibility calculation method according to claim 1, wherein the calculating the electric power industry carbon emission responsibility corresponding to the area to be calculated based on the self-generated self-used power, the called power, the carbon emission responsibility sharing factor of the power calling part and the carbon emission responsibility sharing factor of the power calling part comprises:
in the formula, CER r Representing the responsibility, CES, of the carbon emission of the power industry of the region r to be calculated r Indicating said self-generated self-consumed power, CEO r Representing the call-out power, CEI rs Representing the modulated power, a r A carbon emission responsibility sharing factor, 1-alpha, representing the power calling part s A carbon emission responsibility distribution factor representing the power call-in portion.
10. An electric power industry carbon emission liability calculation terminal comprising a memory, a processor and a computer program stored on the memory and operable on the processor, characterized in that the processor implements the steps of a method of electric power industry carbon emission liability calculation as claimed in any one of claims 1 to 9 when executing the computer program.
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