Transaction decision-making method and device considering participation of electrolytic aluminum enterprise in electricity-carbon market
By constructing electrolytic aluminum enterprises to participate in the carbon market model and the green syndrome market model, combined with the single green certificate corresponding carbon reduction model, the transaction strategy of electrolytic aluminum companies participating in the electrical-carbon market has achieved more effective carbon emissions reduction And low -carbon transformation.
Patent Information
- Application Number
- CN202411463057.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-20
- Publication Date
- 2025-01-28
AI Technical Summary
The existing technology has failed to effectively consider the diversified trading strategies of electrolytic aluminum companies in the electricity-carbon market, and has not fully utilized environmental value attributes such as green electricity certification and carbon emission reduction, so it cannot effectively encourage electrolytic aluminum companies to reduce carbon emissions.
Construct an electrolytic aluminum enterprise to participate in the carbon market model, the green certificate market model and the single green certificate corresponding carbon reduction model. Through these models, the relationship between carbon emissions and transaction costs is reflected, which inspires enterprises to reduce carbon emissions and simulate enterprises in the enterprise in Diversified trading strategies in the carbon market.
It reflects the relationship between carbon emissions and transaction costs more accurately, effectively inspires electrolytic aluminum companies to reduce carbon emissions, promote low -carbon transformation, while ensuring economic performance, and achieve a win -win situation of environmental benefits and economic benefits.
Smart Images
Figure CN119379123A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of high-energy-consuming industrial electricity-carbon coupling, and specifically relates to a transaction decision-making method and device that considers the participation of electrolytic aluminum enterprises in the electricity-carbon market. Background Art
[0002] At present, under the background of increasingly severe global climate challenges, reducing carbon emissions has become an urgent problem to be solved in the high-energy-consuming industrial sector. As an important representative of this field, electrolytic aluminum enterprises account for a significant proportion of overall industrial emissions. Therefore, exploring effective ways to reduce carbon emissions from electrolytic aluminum enterprises has become an important issue to promote the green transformation of the industry and achieve sustainable development.
[0003] The electricity-carbon energy characteristics of electrolytic aluminum enterprises are closely coupled with their production process. The existing technology for carbon emission characteristics of electrolytic aluminum enterprises only considers the carbon emission characteristics of the entire process of electrolytic aluminum load production. However, since my country's electricity market and carbon market are still in the construction and exploration stage, the current electricity-carbon market mechanism is not sound, and traditional technology fails to fully consider the diversified trading strategies of electrolytic aluminum enterprises in participating in the electricity-carbon market. In addition, traditional technology does not consider environmental value attributes such as green electricity certification and carbon emission reduction, and cannot enhance the enthusiasm of electrolytic aluminum enterprises to actively participate in the interaction between electricity and carbon supply and demand. Summary of the invention
[0004] To this end, the present invention provides a trading decision-making method and device that takes into account the participation of electrolytic aluminum enterprises in the electricity-carbon market, which can more accurately reflect the relationship between carbon emissions and transaction costs, thereby more effectively encouraging electrolytic aluminum enterprises to reduce carbon emissions during the production process.
[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a transaction decision method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, comprising:
[0006] Construct a model for electrolytic aluminum enterprises to participate in the carbon market, the model comprising a carbon quota sub-model obtained by electrolytic aluminum load, an actual carbon emission sub-model of electrolytic aluminum load and a step-by-step carbon trading cost sub-model for electrolytic aluminum enterprises; allocate carbon quotas to electrolytic aluminum enterprises through the carbon quota sub-model obtained by electrolytic aluminum load; model the carbon emissions of electrolytic aluminum enterprises through the actual carbon emission sub-model of electrolytic aluminum load; plan and guide the total carbon emissions of electrolytic aluminum enterprises and their trading behaviors in the carbon market through the step-by-step carbon trading cost sub-model of electrolytic aluminum enterprises;
[0007] Construct a model for electrolytic aluminum enterprises to participate in the green certificate market. The model obtains the number of green certificates obtained by the electrolytic aluminum enterprises based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises, and takes the difference between the number of green certificates obtained by the electrolytic aluminum enterprises and the minimum number of green certificates certified as the number of green certificates actually participated in by the electrolytic aluminum enterprises in the green certificate trading market;
[0008] Compare the carbon emissions of fossil energy power generation and new energy power generation, and build a carbon emission reduction model corresponding to a single green certificate. The parameters of the carbon emission reduction model corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation, and the carbon emissions generated by new energy power generation;
[0009] Based on the model of electrolytic aluminum enterprises participating in the carbon market, the model of electrolytic aluminum enterprises participating in the green certificate market and the model of carbon emission reduction corresponding to a single green certificate, a cost model for electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market is obtained. The cost model for electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market is used to make trading decisions on the electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market.
[0010] As a preferred solution for the transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, the expression of the carbon quota sub-model obtained by the electrolytic aluminum load is:
[0011]
[0012] In the formula, E p is the total carbon quota value allocated to the electrolytic aluminum enterprise; T N is the total time scale; N ea is the total number of electrolytic cell series; l is the number of the electrolytic cell series; E p,lt is the carbon emission quota of the lth electrolytic cell series at time t; k is the electricity consumption per ton of aluminum of the electrolytic aluminum enterprise; is the carbon emission quota value obtained per unit of electricity for the first electrolyzer series; P lt is the power of the lth electrolytic cell series at time t; Δt is the time interval.
[0013] As a preferred solution for the transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, the expression of the actual carbon emission sub-model of the electrolytic aluminum load is:
[0014] E=E m +E PFC +E e
[0015]
[0016]
[0017] Ee =EF e ·W ne
[0018] Where, E is the total carbon emission of electrolytic aluminum load; E m Carbon emissions caused by the use of energy as raw materials; E PFC is the carbon emissions in the industrial production process; E e E is the carbon emissions caused by the net electricity consumption purchased by the enterprise; m,lt is the carbon emission caused by carbon anode consumption in the lth electrolytic cell series at time t; EF c is the carbon dioxide emission factor consumed by carbon anode; NC c A is the net consumption of ton of aluminum carbon anode; c is the average ash content of carbon anode; S c is the average sulfur content of the carbon anode; CF is the anode effect 4 , C 2 F 6 Emission factor; EF e is the emission factor of electricity consumption; W ne is the electricity consumption.
[0019] As a preferred solution for the transaction decision method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, the expression of the step-by-step carbon transaction cost sub-model of the electrolytic aluminum enterprises is:
[0020]
[0021] In the formula, E CET Carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market; CET is the step-wise carbon trading cost at time t; α is the carbon trading benchmark price; λ is the growth rate of the carbon trading price; β is the interval length.
[0022] As a preferred solution for the transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, the electrolytic aluminum enterprise participation in the green certificate market model is based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprise, and the expression of the number of green certificates obtained by the electrolytic aluminum enterprise is:
[0023]
[0024]
[0025] Where N GC,ne The number of green certificates actually obtained by the system; N is the power generation of the nth renewable energy in period t; GC,ob The number of green certificates required by the system to meet the consumption responsibility weight; P sum(t) is the total power generation of the system; ψ is the proportion of renewable energy power generation that the system needs to meet;
[0026] The difference between the number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified is used as the expression of the number of green certificates actually participated in the green certificate trading market by the electrolytic aluminum enterprise:
[0027] f GCT =α GCT (N GC,ne -N GC,ob )
[0028] In the formula, f GCT The cost for electrolytic aluminum enterprises to participate in the green certificate trading market; α GCT This is the price for a single green certificate.
[0029] As a preferred solution for the transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, the expression of the carbon emission reduction model corresponding to a single green certificate is:
[0030]
[0031] In the formula, is the carbon reduction amount corresponding to the i-th type of green certificate; Carbon emissions from electricity generation for fossil fuels; Carbon emissions from renewable energy generation.
[0032] As a preferred solution for the transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, based on the electrolytic aluminum enterprise participation in the carbon market model, the electrolytic aluminum enterprise participation in the green certificate market model and the carbon emission reduction model corresponding to a single green certificate, the cost model of the electrolytic aluminum enterprise participating in the green certificate-carbon emission joint trading market is expressed as follows:
[0033]
[0034]
[0035] In the formula, E all The carbon emissions actually participating in the carbon trading market after deducting the green certificate offset effect; all To consider the carbon trading costs of electrolytic aluminum enterprises after considering the interaction between green certificates and carbon emissions.
[0036] The present invention also provides a transaction decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, comprising:
[0037] A module for constructing a model for electrolytic aluminum enterprises to participate in the carbon market is used to construct a model for electrolytic aluminum enterprises to participate in the carbon market. The model for electrolytic aluminum enterprises to participate in the carbon market includes a carbon quota sub-model obtained by electrolytic aluminum load, an actual carbon emission sub-model of electrolytic aluminum load, and a step-by-step carbon trading cost sub-model for electrolytic aluminum enterprises; carbon quotas are allocated to electrolytic aluminum enterprises through the carbon quota sub-model obtained by the electrolytic aluminum load; the carbon emissions of electrolytic aluminum enterprises are modeled through the actual carbon emission sub-model of the electrolytic aluminum load; and the total carbon emissions of electrolytic aluminum enterprises and their trading behaviors in the carbon market are planned and guided through the step-by-step carbon trading cost sub-model of the electrolytic aluminum enterprises;
[0038] A module for constructing a model for electrolytic aluminum enterprises to participate in the green certificate market is used to construct a model for electrolytic aluminum enterprises to participate in the green certificate market. The model for electrolytic aluminum enterprises to participate in the green certificate market obtains the number of green certificates obtained by the electrolytic aluminum enterprises based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises, and takes the difference between the number of green certificates obtained by the electrolytic aluminum enterprises and the minimum number of green certificates certified as the number of green certificates actually participated in by the electrolytic aluminum enterprises in the green certificate trading market;
[0039] A module for constructing a model of carbon emission reduction corresponding to a single green certificate, which is used to compare the carbon emissions of fossil energy power generation and new energy power generation, and to construct a model of carbon emission reduction corresponding to a single green certificate. The parameters of the model of carbon emission reduction corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation, and the carbon emissions generated by new energy power generation;
[0040] A cost model building module is used to obtain a cost model for the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market based on the electrolytic aluminum enterprise participation in the carbon market model, the electrolytic aluminum enterprise participation in the green certificate market model and the carbon emission reduction model corresponding to a single green certificate, and use the cost model for the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market to make trading decisions on the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market.
[0041] As a preferred solution for a transaction decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, in the electrolytic aluminum enterprise participation in the carbon market model construction module, the carbon quota sub-model obtained by the electrolytic aluminum load is expressed as:
[0042]
[0043] In the formula, E p is the total carbon quota value allocated to the electrolytic aluminum enterprise; T N is the total time scale; N ea is the total number of electrolytic cell series; l is the number of the electrolytic cell series; E p,lt is the carbon emission quota of the lth electrolytic cell series at time t; k is the electricity consumption per ton of aluminum of the electrolytic aluminum enterprise; is the carbon emission quota value obtained per unit of electricity for the first electrolyzer series; P lt is the power of the lth electrolytic cell series at time t; Δt is the time interval;
[0044] In the electrolytic aluminum enterprise participation in the carbon market model construction module, the expression of the actual carbon emission sub-model of the electrolytic aluminum load is:
[0045] E=E m +E PFC +E e
[0046]
[0047] E e =EF e ·W ne
[0048] Where, E is the total carbon emission of electrolytic aluminum load; E m Carbon emissions caused by the use of energy as raw materials; E PFC is the carbon emissions in the industrial production process; E e E is the carbon emissions caused by the net electricity consumption purchased by the enterprise; m,lt is the carbon emission caused by carbon anode consumption in the lth electrolytic cell series at time t; EF c is the carbon dioxide emission factor consumed by carbon anode; NC c A is the net consumption of ton of aluminum carbon anode; c is the average ash content of carbon anode; S c is the average sulfur content of the carbon anode; CF is the anode effect 4 , C 2 F 6 Emission factor; EF e is the emission factor of electricity consumption; W ne is the electricity consumption;
[0049] In the electrolytic aluminum enterprise participation in the carbon market model construction module, the expression of the step-by-step carbon transaction cost sub-model of the electrolytic aluminum enterprise is:
[0050]
[0051] In the formula, E CET Carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market; CET is the step-wise carbon trading cost at time t; α is the carbon trading benchmark price; λ is the growth rate of the carbon trading price; β is the interval length.
[0052] As a preferred solution for the transaction decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, in the model construction module of the electrolytic aluminum enterprises participating in the green certificate market:
[0053] The model for electrolytic aluminum enterprises to participate in the green certificate market is based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises. The expression for the number of green certificates obtained by the electrolytic aluminum enterprises is:
[0054]
[0055] Where N GC,ne The number of green certificates actually obtained by the system; N is the power generation of the nth renewable energy in period t; GC,ob The number of green certificates required by the system to meet the consumption responsibility weight; P sum (t) is the total power generation of the system; ψ is the proportion of renewable energy power generation that the system needs to meet;
[0056] The difference between the number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified is used as the expression for the number of green certificates actually participated in the green certificate trading market by the electrolytic aluminum enterprise:
[0057] f GCT =α GCT (N GC,ne -N GC,ob )
[0058] In the formula, f GCT The cost for electrolytic aluminum enterprises to participate in the green certificate trading market; α GCT This is the price for a single green certificate.
[0059] As a preferred solution for the transaction decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, in the carbon emission reduction model construction module corresponding to a single green certificate, the expression of the carbon emission reduction model corresponding to a single green certificate is:
[0060]
[0061] In the formula, is the carbon reduction amount corresponding to the i-th type of green certificate; Carbon emissions from electricity generation for fossil fuels; Carbon emissions from renewable energy generation.
[0062] As a preferred solution for the transaction decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, in the cost model construction module, based on the electrolytic aluminum enterprise's participation in the carbon market model, the electrolytic aluminum enterprise's participation in the green certificate market model and the single green certificate corresponding to the carbon emission reduction model, the cost model of the electrolytic aluminum enterprise participating in the green certificate-carbon emission joint trading market is expressed as follows:
[0063]
[0064] In the formula, E all The carbon emissions actually participating in the carbon trading market after deducting the green certificate offset effect; all To consider the carbon trading costs of electrolytic aluminum enterprises after considering the interaction between green certificates and carbon emissions.
[0065] The present invention has the following advantages: it can more accurately reflect the relationship between carbon emissions and transaction costs, thereby more effectively motivating electrolytic aluminum enterprises to reduce carbon emissions in the production process; it can simulate the diversified trading strategies of enterprises in the carbon market, and provide more detailed guidance and reference for the operational decisions of enterprises under carbon constraints; compared with the existing model that only considers the participation of electrolytic aluminum enterprises in the carbon trading market, the present invention considers the green certificate-carbon emission joint transaction to give full play to the low-carbon attributes of clean energy, more effectively promote the low-carbon transformation of electrolytic aluminum enterprises, while ensuring the economic performance of the enterprises, and achieving a win-win situation of environmental and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0066] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0067] Figure 1 A schematic flow chart of a transaction decision-making method for considering the participation of an electrolytic aluminum enterprise in the electricity-carbon market provided in an embodiment of the present invention;
[0068] Figure 2 This is an architecture diagram of a trading decision-making device provided in an embodiment of the present invention that takes into account the participation of electrolytic aluminum enterprises in the electricity-carbon market. DETAILED DESCRIPTION
[0069] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0070] Example 1
[0071] See also Figure 1 The embodiment of the present invention provides a transaction decision method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, comprising the following steps:
[0072] S1. Construct a model for electrolytic aluminum enterprises to participate in the carbon market, which includes a carbon quota sub-model obtained from electrolytic aluminum load, an actual carbon emission sub-model of electrolytic aluminum load, and a step-by-step carbon trading cost sub-model for electrolytic aluminum enterprises; allocate carbon quotas to electrolytic aluminum enterprises through the carbon quota sub-model obtained from electrolytic aluminum load; model the carbon emissions of electrolytic aluminum enterprises through the actual carbon emission sub-model of electrolytic aluminum load; and plan and guide the total carbon emissions of electrolytic aluminum enterprises and their trading behaviors in the carbon market through the step-by-step carbon trading cost sub-model of electrolytic aluminum enterprises;
[0073] S2. Construct a model for electrolytic aluminum enterprises to participate in the green certificate market. The model for electrolytic aluminum enterprises to participate in the green certificate market obtains the number of green certificates obtained by the electrolytic aluminum enterprises according to the actual output of the photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises, and takes the difference between the number of green certificates obtained by the electrolytic aluminum enterprises and the minimum number of green certificates certified as the number of green certificates actually participated in by the electrolytic aluminum enterprises in the green certificate trading market;
[0074] S3. Compare the carbon emissions of fossil energy power generation and new energy power generation, and construct a carbon emission reduction model corresponding to a single green certificate. The parameters of the carbon emission reduction model corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation, and the carbon emissions generated by new energy power generation;
[0075] S4. Based on the model of electrolytic aluminum enterprises participating in the carbon market, the model of electrolytic aluminum enterprises participating in the green certificate market and the model of carbon emission reduction corresponding to a single green certificate, a cost model for electrolytic aluminum enterprises to participate in the green certificate-carbon emission joint trading market is obtained. The cost model for electrolytic aluminum enterprises to participate in the green certificate-carbon emission joint trading market is used to make trading decisions on the electrolytic aluminum enterprises' participation in the green certificate-carbon emission joint trading market.
[0076] Since my country's carbon emission trading market is still in its infancy, according to the "National Carbon Emission Trading Management Measures (Trial)", the main allocation method of carbon quotas is free allocation. Therefore, in step S1, the benchmark method is used to allocate carbon quotas to electrolytic aluminum enterprises. The carbon quota sub-model obtained by the electrolytic aluminum load is expressed as:
[0077]
[0078] In the formula, E p is the total carbon quota value allocated to the electrolytic aluminum enterprise; T N is the total time scale; N ea is the total number of electrolytic cell series; l is the number of the electrolytic cell series; E p,lt is the carbon emission quota of the lth electrolytic cell series at time t; k is the electricity consumption per ton of aluminum of the electrolytic aluminum enterprise; is the carbon emission quota value obtained per unit of electricity for the first electrolyzer series; Plt is the power of the lth electrolytic cell series at time t; Δt is the time interval.
[0079] In this embodiment, in step S1, the total carbon emission of the electrolytic aluminum load (2) mainly includes three parts, carbon emission generated by the carbon anode as a reducing agent (3), carbon emission generated by the anode effect (5) and carbon emission generated by the electricity used in the electrolysis process (6). The expression of the actual carbon emission sub-model of the electrolytic aluminum load is:
[0080] E=E m +E PFC +E e (2)
[0081]
[0082] E e =EF e ·W ne (6)
[0083] Where, E is the total carbon emission of electrolytic aluminum load; E m Carbon emissions caused by the use of energy as raw materials; E PFC is the carbon emissions in the industrial production process; E e E is the carbon emissions caused by the net electricity consumption purchased by the enterprise; m,lt is the carbon emission caused by carbon anode consumption in the lth electrolytic cell series at time t; EF c is the carbon dioxide emission factor consumed by carbon anode; NC c A is the net consumption of ton of aluminum carbon anode; c is the average ash content of carbon anode; S c is the average sulfur content of the carbon anode; CF is the anode effect 4 , C 2 F 6 Emission factor; EF e is the emission factor of electricity consumption; W ne is the electricity consumption.
[0084] Specifically, in step S1, the carbon trading volume actually participating in the carbon trading market in the stepped carbon trading cost sub-model of the electrolytic aluminum enterprise is as shown in formula (7).
[0085] E CET =E m +E PFC +E e -E p (7)
[0086] In the formula, E CET The carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market.
[0087] Among them, in order to promote energy conservation and carbon reduction in electrolytic aluminum enterprises, the present invention adopts a phased and incremental carbon trading mechanism, which sets carbon trading price ladders corresponding to different emission thresholds, and guides the total carbon emissions of electrolytic aluminum enterprises and their trading behavior in the carbon market by means of economic rewards and punishments. The expression of the step-by-step carbon trading cost sub-model of the electrolytic aluminum enterprise is:
[0088]
[0089] In the formula, E CET Carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market; CET is the step-wise carbon trading cost at time t; α is the carbon trading benchmark price; λ is the growth rate of the carbon trading price; β is the interval length.
[0090] In this embodiment, in step S2, the number of green certificates obtained by the aluminum electrolytic enterprise can be obtained according to the actual output of the photovoltaic and wind turbines equipped in the aluminum electrolytic enterprise, as shown in formula (9); subject to the constraints of the tradable green certificate system, the aluminum electrolytic enterprise must reach the minimum number of green certificate certifications, as shown in formula (10).
[0091]
[0092] Where N GC,ne The number of green certificates actually obtained by the system; N is the power generation of the nth renewable energy in period t; GC,ob The number of green certificates required by the system to meet the consumption responsibility weight; P sum (t)
[0093] Among them, the difference between the number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified is the number of green certificates actually participated in by the electrolytic aluminum enterprise in the green certificate trading market. The income of the electrolytic aluminum enterprise from participating in the green certificate market is shown in formula (11).
[0094] f GCT =α GCT (N GC,ne -N GC,ob ) (11)
[0095] In the formula, f GCT The cost for electrolytic aluminum enterprises to participate in the green certificate trading market; α GCT This is the price for a single green certificate.
[0096] In this embodiment, in step S3, the carbon emissions of fossil energy power generation and new energy power generation are compared, and the expression of the carbon emission reduction model corresponding to the single green certificate is constructed as follows:
[0097]
[0098] In the formula, is the carbon reduction amount corresponding to the i-th type of green certificate; Carbon emissions from electricity generation for fossil fuels; Carbon emissions from renewable energy generation.
[0099] In this embodiment, in step S4, based on the electrolytic aluminum enterprise's participation in the carbon market model, the electrolytic aluminum enterprise's participation in the green certificate market model and the single green certificate corresponding carbon emission reduction model:
[0100] Among them, after taking into account the green certificate emission reduction model, the carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market is shown in formula (13).
[0101]
[0102] In the formula, E all The carbon emissions that actually participate in the carbon trading market after deducting the green certificate offset effect.
[0103] At this point, the cost model of electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market is expressed as:
[0104]
[0105] In the formula, E all The carbon emissions actually participating in the carbon trading market after deducting the green certificate offset effect; all To consider the carbon trading costs of electrolytic aluminum enterprises after considering the interaction between green certificates and carbon emissions.
[0106] In order to verify the effectiveness of the transaction decision method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market proposed in the embodiment of the present invention, three different scenarios are set for comparison. Scenario 1 only considers the impact of the carbon trading market; Scenario 2 adds the impact of the green certificate trading market on the basis of Scenario 1, but does not consider the interaction between the carbon trading market and the green certificate trading market, and only considers the parallel state; Scenario 3 adopts the proposed green certificate-carbon emission joint transaction decision method. The scheduling results of each scenario are shown in Table 1:
[0107] Table 1 Day-ahead scheduling results for each scenario
[0108]
[0109] As shown in Table 1, the total revenue of electrolytic aluminum enterprises in scenario 3 is the highest, which is an increase of 151,300 yuan and 73,400 yuan respectively compared with scenarios 1 and 2. Compared with the parallel operation of carbon emission trading (CET) and green certificate trading (GCT) markets shown in scenario 2, the carbon trading cost in scenario 3 is greatly reduced. This cost reduction is mainly attributed to the low-carbon emissions of clean energy represented by green certificates, which greatly offset the carbon quotas that need to be purchased, thereby reducing the carbon trading costs of electrolytic aluminum enterprises, fully reflecting the economic benefits of the proposed CET and GCT interactive strategy.
[0110] In summary, the present invention constructs a model for electrolytic aluminum enterprises to participate in the carbon market, which includes a carbon quota sub-model obtained from the electrolytic aluminum load, an actual carbon emission sub-model of the electrolytic aluminum load and a step-by-step carbon trading cost sub-model for the electrolytic aluminum enterprises; carbon quotas are allocated to electrolytic aluminum enterprises through the carbon quota sub-model obtained from the electrolytic aluminum load; the carbon emissions of electrolytic aluminum enterprises are modeled through the actual carbon emission sub-model of the electrolytic aluminum load; the total carbon emissions of electrolytic aluminum enterprises and their trading behaviors in the carbon market are planned and guided through the step-by-step carbon trading cost sub-model of the electrolytic aluminum enterprises; a model for electrolytic aluminum enterprises to participate in the green certificate market is constructed, which obtains the green certificates obtained by the electrolytic aluminum enterprises according to the actual output of the photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises. The number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified are taken as the number of green certificates actually participated in the green certificate trading market by the electrolytic aluminum enterprise; the carbon emissions of fossil energy power generation and new energy power generation are compared, and a model of carbon emission reduction corresponding to a single green certificate is constructed. The parameters of the model of carbon emission reduction corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation and the carbon emissions generated by new energy power generation; based on the model of electrolytic aluminum enterprises participating in the carbon market, the model of electrolytic aluminum enterprises participating in the green certificate market and the model of carbon emission reduction corresponding to a single green certificate, a cost model for electrolytic aluminum enterprises to participate in the green certificate-carbon emission joint trading market is obtained, and the cost model for electrolytic aluminum enterprises to participate in the green certificate-carbon emission joint trading market is used to make trading decisions on the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market. The present invention can more accurately reflect the relationship between carbon emissions and transaction costs, thereby more effectively motivating electrolytic aluminum enterprises to reduce carbon emissions in the production process; it can simulate the diversified trading strategies of enterprises in the carbon market, and provide more detailed guidance and reference for the operational decisions of enterprises under carbon constraints; compared with the existing model that only considers the participation of electrolytic aluminum enterprises in the carbon trading market, the present invention considers the green certificate-carbon emission joint transaction to give full play to the low-carbon attributes of clean energy, more effectively promote the low-carbon transformation of electrolytic aluminum enterprises, while ensuring the economic performance of enterprises, and achieving a win-win situation of environmental and economic benefits.
[0111] Example 2
[0112] See also Figure 2 Embodiment 2 of the invention also provides a transaction decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market, including:
[0113] The electrolytic aluminum enterprise participation in the carbon market model construction module 100 is used to construct the electrolytic aluminum enterprise participation in the carbon market model, which includes a carbon quota sub-model obtained by the electrolytic aluminum load, an actual carbon emission sub-model of the electrolytic aluminum load and a step-by-step carbon trading cost sub-model of the electrolytic aluminum enterprise; the carbon quota sub-model obtained by the electrolytic aluminum load is used to allocate carbon quotas to the electrolytic aluminum enterprise; the carbon emissions of the electrolytic aluminum enterprise are modeled through the actual carbon emission sub-model of the electrolytic aluminum load; and the total carbon emissions of the electrolytic aluminum enterprise and the trading behavior in the carbon market are planned and guided through the step-by-step carbon trading cost sub-model of the electrolytic aluminum enterprise;
[0114] A model building module 200 for electrolytic aluminum enterprises to participate in the green certificate market is used to build a model for electrolytic aluminum enterprises to participate in the green certificate market. The model for electrolytic aluminum enterprises to participate in the green certificate market obtains the number of green certificates obtained by the electrolytic aluminum enterprises according to the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises, and takes the difference between the number of green certificates obtained by the electrolytic aluminum enterprises and the minimum number of green certificates certified as the number of green certificates actually participated in by the electrolytic aluminum enterprises in the green certificate trading market;
[0115] A module 300 for constructing a model of carbon emission reduction corresponding to a single green certificate is used to compare the carbon emissions of fossil energy power generation and new energy power generation, and to construct a model of carbon emission reduction corresponding to a single green certificate. The parameters of the model of carbon emission reduction corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation, and the carbon emissions generated by new energy power generation;
[0116] The cost model construction module 400 is used to obtain the cost model of the electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market based on the electrolytic aluminum enterprises' participation in the carbon market model, the electrolytic aluminum enterprises' participation in the green certificate market model and the carbon emission reduction model corresponding to a single green certificate, and use the cost model of the electrolytic aluminum enterprises' participation in the green certificate-carbon emission joint trading market to make trading decisions on the electrolytic aluminum enterprises' participation in the green certificate-carbon emission joint trading market.
[0117] In this embodiment, in the electrolytic aluminum enterprise participation in the carbon market model construction module 100, the carbon quota sub-model obtained by the electrolytic aluminum load is expressed as:
[0118]
[0119] In the formula, E p is the total carbon quota value allocated to the electrolytic aluminum enterprise; T N is the total time scale; N eais the total number of electrolytic cell series; l is the number of the electrolytic cell series; E p,lt is the carbon emission quota of the lth electrolytic cell series at time t; k is the electricity consumption per ton of aluminum of the electrolytic aluminum enterprise; is the carbon emission quota value obtained per unit of electricity for the first electrolyzer series; P lt is the power of the lth electrolytic cell series at time t; Δt is the time interval;
[0120] In the electrolytic aluminum enterprise participation in the carbon market model construction module 100, the expression of the actual carbon emission sub-model of the electrolytic aluminum load is:
[0121] E=E m +E PFC +E e
[0122]
[0123]
[0124] E e =EF e ·W ne
[0125] Where, E is the total carbon emission of electrolytic aluminum load; E m Carbon emissions caused by the use of energy as raw materials; E PFC is the carbon emissions in the industrial production process; E e E is the carbon emissions caused by the net electricity consumption purchased by the enterprise; m,lt is the carbon emission caused by carbon anode consumption in the lth electrolytic cell series at time t; EF c is the carbon dioxide emission factor consumed by carbon anode; NC c A is the net consumption of ton of aluminum carbon anode; c is the average ash content of carbon anode; S c is the average sulfur content of the carbon anode; CF is the anode effect 4 , C 2 F 6 Emission factor; EF e is the emission factor of electricity consumption; W ne is the electricity consumption;
[0126] In the electrolytic aluminum enterprise participation in the carbon market model construction module 100, the expression of the step-by-step carbon transaction cost sub-model of the electrolytic aluminum enterprise is:
[0127]
[0128] In the formula, E CETCarbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market; CET is the step-wise carbon trading cost at time t; α is the carbon trading benchmark price; λ is the growth rate of the carbon trading price; β is the interval length.
[0129] In this embodiment, in the electrolytic aluminum enterprise participating in the green certificate market model construction module 200:
[0130] The model for electrolytic aluminum enterprises to participate in the green certificate market is based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises. The expression for the number of green certificates obtained by the electrolytic aluminum enterprises is:
[0131]
[0132] Where N GC,ne The number of green certificates actually obtained by the system; N is the power generation of the nth renewable energy in period t; GC,ob The number of green certificates required by the system to meet the consumption responsibility weight; P sum (t) is the total power generation of the system; ψ is the proportion of renewable energy power generation that the system needs to meet;
[0133] The difference between the number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified is used as the expression of the number of green certificates actually participated in the green certificate trading market by the electrolytic aluminum enterprise:
[0134] f GCT =α GCT (N GC,ne -N GC,ob )
[0135] In the formula, f GCT The cost for electrolytic aluminum enterprises to participate in the green certificate trading market; α GCT This is the price for a single green certificate.
[0136] In this embodiment, in the single green certificate corresponding to carbon emission reduction model construction module 300, the expression of the single green certificate corresponding to carbon emission reduction model is:
[0137]
[0138] In the formula, is the carbon reduction amount corresponding to the i-th type of green certificate; Carbon emissions from electricity generation for fossil fuels; Carbon emissions from renewable energy generation.
[0139] In this embodiment, in the cost model construction module 400, based on the electrolytic aluminum enterprise's participation in the carbon market model, the electrolytic aluminum enterprise's participation in the green certificate market model and the single green certificate corresponding to the carbon emission reduction model, the cost model of the electrolytic aluminum enterprise participating in the green certificate-carbon emission joint trading market is expressed as follows:
[0140]
[0141]
[0142] In the formula, E all The carbon emissions actually participating in the carbon trading market after deducting the green certificate offset effect; all To consider the carbon trading costs of electrolytic aluminum enterprises after considering the interaction between green certificates and carbon emissions.
[0143] It should be noted that the information interaction, execution process and other contents between the modules of the above-mentioned device are based on the same concept as the method embodiment in Example 1 of the present application, and the technical effects they bring are the same as those of the method embodiment of the present application. For specific contents, please refer to the description in the method embodiment shown in the previous part of the present application, and will not be repeated here.
[0144] Example 3
[0145] Embodiment 3 of the present invention provides a non-transitory computer-readable storage medium, in which a program code for a trading decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market is stored, and the program code includes instructions for executing embodiment 1 or any possible implementation method thereof. The trading decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market.
[0146] The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).
[0147] Example 4
[0148] Embodiment 4 of the present invention provides an electronic device, including: a memory and a processor;
[0149] The processor and the memory communicate with each other via a bus; the memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the trading decision-making method of embodiment 1 or any possible implementation thereof that considers the participation of electrolytic aluminum enterprises in the electricity-carbon market.
[0150] Specifically, the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor implemented by reading software codes stored in a memory. The memory can be integrated in the processor or can be located outside the processor and exist independently.
[0151] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
[0152] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.
[0153] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.
Claims
1. Considering the trading decision-making method of electrolytic aluminum enterprises participating in the electricity-carbon market, it is characterized by: include: Constructing a model for electrolytic aluminum enterprises to participate in the carbon market, wherein the model includes a sub-model for carbon quotas obtained by electrolytic aluminum loads, a sub-model for actual carbon emissions of electrolytic aluminum loads, and a sub-model for tiered carbon transaction costs of electrolytic aluminum enterprises; Allocate carbon quotas to electrolytic aluminum enterprises through the carbon quota sub-model obtained through the electrolytic aluminum load; Modeling the carbon emissions of the electrolytic aluminum enterprises through the actual carbon emission sub-model of the electrolytic aluminum load; The total carbon emissions of electrolytic aluminum enterprises and their trading behaviors in the carbon market are planned and guided through the tiered carbon trading cost sub-model of electrolytic aluminum enterprises; Construct a model for electrolytic aluminum enterprises to participate in the green certificate market. The model obtains the number of green certificates obtained by the electrolytic aluminum enterprises based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises, and takes the difference between the number of green certificates obtained by the electrolytic aluminum enterprises and the minimum number of green certificates certified as the number of green certificates actually participated in by the electrolytic aluminum enterprises in the green certificate trading market; Compare the carbon emissions of fossil energy power generation and new energy power generation, and build a carbon emission reduction model corresponding to a single green certificate. The parameters of the carbon emission reduction model corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation, and the carbon emissions generated by new energy power generation; Based on the model of electrolytic aluminum enterprises participating in the carbon market, the model of electrolytic aluminum enterprises participating in the green certificate market and the model of carbon emission reduction corresponding to a single green certificate, a cost model for electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market is obtained. The cost model for electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market is used to make trading decisions on the electrolytic aluminum enterprises participating in the green certificate-carbon emission joint trading market.
2. The transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 1 is characterized in that: The expression of the carbon quota sub-model obtained by the electrolytic aluminum load is: In the formula, E p is the total carbon quota value allocated to the electrolytic aluminum enterprise; T N is the total time scale; N ea is the total number of electrolytic cell series; l is the number of the electrolytic cell series; E p,lt is the carbon emission quota of the lth electrolytic cell series at time t; k is the electricity consumption per ton of aluminum of the electrolytic aluminum enterprise; is the carbon emission quota value obtained per unit of electricity for the first electrolyzer series; P lt is the power of the lth electrolytic cell series at time t; Δt is the time interval.
3. The transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 2 is characterized in that: The expression of the actual carbon emission sub-model of the electrolytic aluminum load is: E=E m +E PFC +E e E e =EF e ·W ne Where, E is the total carbon emission of electrolytic aluminum load; E m Carbon emissions caused by the use of energy as raw materials; E PFC is the carbon emissions in the industrial production process; E e E is the carbon emissions caused by the net electricity consumption purchased by the enterprise; m,lt is the carbon emission caused by carbon anode consumption in the lth electrolytic cell series at time t; EF c is the carbon dioxide emission factor consumed by carbon anode; NC c A is the net consumption of ton of aluminum carbon anode; c is the average ash content of carbon anode; S c is the average sulfur content of the carbon anode; EF is the emission factor of CF4 and C2F6 due to the anode effect; e is the emission factor of electricity consumption; W ne is the electricity consumption.
4. The transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 3 is characterized in that: The expression of the step-by-step carbon transaction cost sub-model of the electrolytic aluminum enterprise is: In the formula, E CET Carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market; CET is the step-wise carbon trading cost at time t; α is the carbon trading benchmark price; λ is the growth rate of the carbon trading price; β is the interval length.
5. The transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 4 is characterized in that: The model for electrolytic aluminum enterprises to participate in the green certificate market is based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises. The expression for the number of green certificates obtained by the electrolytic aluminum enterprises is: Where N GC,ne The number of green certificates actually obtained by the system; N is the power generation of the nth renewable energy in period t; GC,ob The number of green certificates required by the system to meet the consumption responsibility weight; P sum (t) is the total power generation of the system; ψ is the proportion of renewable energy power generation that the system needs to meet; The difference between the number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified is used as the expression of the number of green certificates actually participated in the green certificate trading market by the electrolytic aluminum enterprise: f GCT =a GCT (N GC,ne -N GC,ob ) In the formula, f GCT The cost for electrolytic aluminum enterprises to participate in the green certificate trading market; α GCT This is the price for a single green certificate.
6. The transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 5 is characterized in that: The expression of the carbon emission reduction model corresponding to a single green certificate is: In the formula, is the carbon reduction amount corresponding to the i-th type of green certificate; Carbon emissions from electricity generation for fossil fuels; Carbon emissions from renewable energy generation.
7. The transaction decision-making method considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 6 is characterized in that: Based on the electrolytic aluminum enterprise participation in the carbon market model, the electrolytic aluminum enterprise participation in the green certificate market model and the single green certificate corresponding carbon emission reduction model, the cost model of the electrolytic aluminum enterprise participating in the green certificate-carbon emission joint trading market is expressed as follows: In the formula, E all The carbon emissions actually participating in the carbon trading market after deducting the green certificate offset effect; all To consider the carbon trading costs of electrolytic aluminum enterprises after considering the interaction between green certificates and carbon emissions.
8. Considering the trading decision-making device for the participation of electrolytic aluminum enterprises in the electricity-carbon market, it is characterized by: include: A module for constructing a model for electrolytic aluminum enterprises to participate in the carbon market, which is used to construct a model for electrolytic aluminum enterprises to participate in the carbon market. The model for electrolytic aluminum enterprises to participate in the carbon market includes a sub-model for carbon quotas obtained by electrolytic aluminum loads, a sub-model for actual carbon emissions of electrolytic aluminum loads, and a sub-model for stepped carbon transaction costs of electrolytic aluminum enterprises. Allocate carbon quotas to electrolytic aluminum enterprises through the carbon quota sub-model obtained through the electrolytic aluminum load; Modeling the carbon emissions of the electrolytic aluminum enterprises through the actual carbon emission sub-model of the electrolytic aluminum load; The total carbon emissions of electrolytic aluminum enterprises and their trading behaviors in the carbon market are planned and guided through the tiered carbon trading cost sub-model of electrolytic aluminum enterprises; A module for constructing a model for electrolytic aluminum enterprises to participate in the green certificate market is used to construct a model for electrolytic aluminum enterprises to participate in the green certificate market. The model for electrolytic aluminum enterprises to participate in the green certificate market obtains the number of green certificates obtained by the electrolytic aluminum enterprises based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises, and takes the difference between the number of green certificates obtained by the electrolytic aluminum enterprises and the minimum number of green certificates certified as the number of green certificates actually participated in by the electrolytic aluminum enterprises in the green certificate trading market; A module for constructing a model of carbon emission reduction corresponding to a single green certificate, which is used to compare the carbon emissions of fossil energy power generation and new energy power generation, and to construct a model of carbon emission reduction corresponding to a single green certificate. The parameters of the model of carbon emission reduction corresponding to a single green certificate include the carbon reduction corresponding to the specified green certificate category, the carbon emissions generated by fossil energy power generation, and the carbon emissions generated by new energy power generation; A cost model building module is used to obtain a cost model for the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market based on the electrolytic aluminum enterprise participation in the carbon market model, the electrolytic aluminum enterprise participation in the green certificate market model and the carbon emission reduction model corresponding to a single green certificate, and use the cost model for the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market to make trading decisions on the participation of electrolytic aluminum enterprises in the green certificate-carbon emission joint trading market.
9. The trading decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 8 is characterized in that: In the electrolytic aluminum enterprise participation in the carbon market model construction module, the carbon quota sub-model obtained by the electrolytic aluminum load is expressed as: In the formula, E p is the total carbon quota value allocated to the electrolytic aluminum enterprise; T N is the total time scale; N ea is the total number of electrolytic cell series; l is the number of the electrolytic cell series; E p,lt is the carbon emission quota of the lth electrolytic cell series at time t; k is the electricity consumption per ton of aluminum of the electrolytic aluminum enterprise; is the carbon emission quota value obtained per unit of electricity for the first electrolyzer series; P lt is the power of the lth electrolytic cell series at time t; Δt is the time interval; In the electrolytic aluminum enterprise participation in the carbon market model construction module, the expression of the actual carbon emission sub-model of the electrolytic aluminum load is: E=E m +E PFC +E e E e =EF e ·W ne Where, E is the total carbon emission of electrolytic aluminum load; E m Carbon emissions caused by the use of energy as raw materials; E PFC is the carbon emissions in the industrial production process; E e E is the carbon emissions caused by the net electricity consumption purchased by the enterprise; m,lt is the carbon emission caused by carbon anode consumption in the lth electrolytic cell series at time t; EF c is the carbon dioxide emission factor consumed by carbon anode; NC c A is the net consumption of ton of aluminum carbon anode; c is the average ash content of carbon anode; S c is the average sulfur content of the carbon anode; EF is the emission factor of CF4 and C2F6 due to the anode effect; e is the emission factor of electricity consumption; W ne is the electricity consumption; In the electrolytic aluminum enterprise participation in the carbon market model construction module, the expression of the step-by-step carbon transaction cost sub-model of the electrolytic aluminum enterprise is: In the formula, E CET Carbon trading volume of electrolytic aluminum enterprises participating in the carbon trading market; CET is the step-wise carbon trading cost at time t; α is the carbon trading benchmark price; λ is the growth rate of the carbon trading price; β is the interval length.
10. The trading decision-making device considering the participation of electrolytic aluminum enterprises in the electricity-carbon market according to claim 9 is characterized in that: In the module for constructing the green certificate market model for electrolytic aluminum enterprises: The model for electrolytic aluminum enterprises to participate in the green certificate market is based on the actual output of photovoltaic and wind turbines equipped in the electrolytic aluminum enterprises. The expression for the number of green certificates obtained by the electrolytic aluminum enterprises is: Where N GC,ne The number of green certificates actually obtained by the system; N is the power generation of the nth renewable energy in period t; GC,ob The number of green certificates required by the system to meet the consumption responsibility weight; P sum (t) is the total power generation of the system; ψ is the proportion of renewable energy power generation that the system needs to meet; The difference between the number of green certificates obtained by the electrolytic aluminum enterprise and the minimum number of green certificates certified is used as the expression of the number of green certificates actually participated in the green certificate trading market by the electrolytic aluminum enterprise: f GCT =a GCT (N GC,ne -N GC,ob ) In the formula, f GCT The cost for electrolytic aluminum enterprises to participate in the green certificate trading market; α GCT The price of a single green certificate; In the carbon emission reduction model construction module corresponding to a single green certificate, the expression of the carbon emission reduction model corresponding to a single green certificate is: In the formula, is the carbon reduction amount corresponding to the i-th type of green certificate; Carbon emissions from electricity generation for fossil fuels; Carbon emissions from electricity generation for renewable energy; In the cost model construction module, based on the electrolytic aluminum enterprise participation in the carbon market model, the electrolytic aluminum enterprise participation in the green certificate market model and the carbon emission reduction model corresponding to a single green certificate, the cost model of the electrolytic aluminum enterprise participating in the green certificate-carbon emission joint trading market is expressed as follows: In the formula, E all The carbon emissions actually participating in the carbon trading market after deducting the green certificate offset effect; all To consider the carbon trading costs of electrolytic aluminum enterprises after considering the interaction between green certificates and carbon emissions.