Production link carbon footprint accounting method and device, product carbon footprint accounting method and system and production link carbon footprint optimization method and system

Abstract

The invention discloses a production link carbon footprint accounting method and device, a product carbon footprint accounting method and system and a production link carbon footprint optimization method and system, and relates to the technical field of energy. The production link carbon footprint accounting method comprises the steps of obtaining a target product yield of a target batch of products, N first consumption rates corresponding to N terminal energy consumption of the target batch of products in a unit time corresponding to a target production link in a one-to-one manner, and N first dynamic carbon emission factors corresponding to the N terminal energy consumption in a one-to-one manner, the total production duration of the target product in the target production link is determined; and determining a first carbon footprint corresponding to the target production link according to the target product yield, the N first consumption rates, the N first dynamic carbon emission factors and the total production duration of the target product. According to the embodiment of the invention, the method can improve the accuracy of the first carbon footprint corresponding to the target production link.

Description

Technical Field

[0001] The present application belongs to the field of energy technology, and specifically relates to a method and device for calculating carbon footprint in production, a method and system for calculating carbon footprint in products, and a method and system for optimizing carbon footprint in production. Background Art

[0002] For companies, low carbon footprint has become part of product competitiveness and a manifestation of brand value and reputation.

[0003] In recent years, product carbon footprint accounting has made significant progress. For example, Siemens launched the SIGREEN product carbon footprint trusted actuarial and traceability solution to accurately quantify the carbon footprint of products throughout the supply chain. However, it focuses on the product supply chain and is not highly integrated with the production process and energy structure of industrial enterprises, and cannot provide industrial enterprises with low-carbon operation suggestions in energy and production.

[0004] The existing technology calculates the carbon footprint of products based on the average carbon emission factor of the external large power grid. For industrial enterprises that build their own distributed energy systems, this ignores the diversified energy production and conversion structure within the enterprise, resulting in inaccurate and imprecise calculation results. Summary of the invention

[0005] The technical problem to be solved by the present application is to provide a production link carbon footprint accounting method and device, a product carbon footprint accounting method and system, and a production link carbon footprint optimization method and system in response to the above-mentioned deficiencies in the prior art. The use of this method can improve the accuracy of the first carbon footprint corresponding to the target production link, thereby providing the possibility of improving the accuracy of the product carbon footprint and making the product carbon footprint more refined.

[0006] In a first aspect, an embodiment of the present application provides a method for calculating carbon footprint in a production process, including:

[0007] Obtain the target product output of the target batch of products, N first consumption rates corresponding to N terminal energy consumptions per unit time of the target batch of products in the target production link, N first dynamic carbon emission factors corresponding to the N terminal energy consumptions, and the total production time of the target products in the target production link; determine the first carbon footprint corresponding to the target production link based on the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target products.

[0008] In some embodiments of the first aspect, N first consumption rates corresponding to N terminal energy consumptions per unit time of the target batch of products in the target production link are obtained, including: for any terminal energy consumption among the N terminal energy consumptions, obtaining the N first consumption rates corresponding to any time t between the start time and the end time of the target production link.

[0009] In some embodiments of the first aspect, obtaining N first dynamic carbon emission factors corresponding to N terminal energy consumptions one by one includes: for any terminal energy consumption among the N terminal energy consumptions, obtaining M second dynamic carbon emission factors, M first conversion efficiencies and M first ratios corresponding to the terminal energy consumption at any time t, so as to obtain N*M second dynamic carbon emission factors, N*M first conversion efficiencies and N*M first ratios; for any terminal energy consumption among the N terminal energy consumptions, substituting the M first conversion efficiencies, M first ratios and M second dynamic carbon emission factors corresponding to the terminal energy consumption at any time t into formula (1) for calculation, so as to obtain the first dynamic carbon emission factor corresponding to the terminal energy consumption, so as to obtain N first dynamic carbon emission factors at any time t;

[0010] Formula (1) includes:

[0011]

[0012] in, represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; α ijt represents the first proportion of terminal energy consumption j converted from available energy resource i at any time t, that is, the i-th first proportion of terminal energy consumption j corresponding to any time t; represents the dynamic carbon emission factor of available energy resource i at any time t, that is, the i-th second dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; η ijt It represents the first conversion efficiency of available energy resource i into terminal energy j at any time t, that is, the i-th first conversion efficiency corresponding to terminal energy j at any time t.

[0013] In some embodiments of the first aspect, M first conversion efficiencies corresponding to terminal energy consumption at any time t are obtained, including: obtaining M first conversion efficiencies corresponding to terminal energy consumption at any time t through a dynamic operation model, the dynamic operation model being used to characterize the energy efficiency change relationship caused by the load rate change during the operation of energy equipment under non-rated conditions for a certain period of time.

[0014] In some embodiments of the first aspect, according to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product, determining the first carbon footprint corresponding to the target production link includes: within the production time of the target link, substituting the N first consumption rates, N first dynamic carbon emission factors, the total production time of the target product, and the target product output corresponding to any time t into formula (2) for calculation to obtain the first carbon footprint corresponding to the target production link; formula (2) includes:

[0015]

[0016] Among them, CF P,k represents the first carbon footprint corresponding to the target production link k; Q j,t represents the first consumption rate of terminal energy j at any time t; T represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; k represents the total production time of the target product; P represents the output of the target product.

[0017] Based on the same inventive concept, in a second aspect, an embodiment of the present application further provides a product carbon footprint accounting method, including: for a target batch of products in any target production link among K production links, according to any method of the first aspect, determining the first carbon footprint corresponding to the target production link to obtain K first carbon footprints; determining a first total carbon footprint according to the K first carbon footprints; for any raw material among X raw materials of the target batch of products, obtaining the total raw material consumption and the second carbon footprint corresponding to the raw material to obtain X total raw material consumption and X second carbon footprints; determining the second total carbon footprint of the raw materials of the target batch of products according to the X total raw material consumption, the X second carbon footprints and the target product output; determining the target total carbon footprint of the target batch of products according to the first total carbon footprint and the second total carbon footprint.

[0018] In some embodiments of the second aspect, determining a first total carbon footprint based on the K first carbon footprints includes: substituting the K first carbon footprints into formula (3) for calculation to obtain a first total carbon footprint;

[0019] Formula (3) includes:

[0020]

[0021] Among them, CF P Represents the first total carbon footprint; CF P,k Represents the first carbon footprint corresponding to the target production link k.

[0022] In some embodiments of the second aspect, obtaining the total raw material consumption corresponding to the raw material includes: obtaining the raw material consumption of the raw material corresponding to any target production link among K production links to obtain K raw material consumptions; and determining the sum of the K raw material consumptions as the total raw material consumption corresponding to the raw material.

[0023] In some embodiments of the second aspect, determining the second total carbon footprint of the raw materials of the target batch product according to X total raw material consumption, X second carbon footprints and the target product output includes: substituting the X total raw material consumption, X second carbon footprints and the target product output into formula (4) for calculation to obtain the second total carbon footprint of the raw materials of the target batch product; formula (4) includes:

[0024]

[0025] Among them, CF M A second total carbon footprint representing the raw materials of the target batch of products; represents the total raw material consumption of raw material i; represents the second carbon footprint of raw material i; P represents the target product output.

[0026] In some embodiments of the second aspect, determining a target total carbon footprint of a target batch of products according to the first total carbon footprint and the second total carbon footprint includes:

[0027] Substitute the first total carbon footprint and the second total carbon footprint into formula (5) to calculate and obtain the target total carbon footprint of the target batch of products;

[0028] Formula (5) includes:

[0029] CF=CF M +CF P (5)

[0030] Where CF represents the target total carbon footprint of the target batch of products; CF P Represents the first total carbon footprint; CF M Represents the second total carbon footprint.

[0031] Based on the same inventive concept, in the third aspect, an embodiment of the present application provides a method for optimizing the carbon footprint of a production link, including: determining a first carbon footprint corresponding to a target production link according to the carbon footprint accounting method for the production link in any one of the first aspects; when the first carbon footprint is greater than the carbon footprint baseline of the target production link, optimizing the flexible load and energy system corresponding to the target production link to obtain a first optimization result, and the first optimization result is used to reduce the first carbon footprint of the next production link of the target production link.

[0032] In some embodiments of the third aspect, before optimizing the flexible load and energy system corresponding to the target production link, the method also includes: obtaining the carbon footprint baseline of the target production link, obtaining the carbon footprint baseline of the target production link, including: obtaining the production scheduling plan of the target production link; according to the production scheduling plan, predicting the new energy power generation power and terminal energy consumption in the entire cycle included therein, and obtaining the prediction result; optimizing the operation strategy of the energy system based on the prediction result to obtain a second optimization result; taking the production link corresponding to the second optimization result as the target production link, and determining the first carbon footprint of the production link corresponding to the second optimization result according to the carbon footprint accounting method of the production link such as any one of the items in the first aspect, and determining the first carbon footprint of the production link corresponding to the second optimization result as the carbon footprint baseline of the target production link.

[0033] Based on the same inventive concept, in the fourth aspect, an embodiment of the present application also provides a carbon footprint accounting device for a production link, including: a first acquisition module, used to obtain the target product output of a target batch of products, N first consumption rates corresponding to N terminal energy consumptions per unit time of the target batch of products in the target production link, N first dynamic carbon emission factors corresponding to N terminal energy consumptions, and the total production time of the target product in the target production link; a first determination module, connected to the first acquisition module, for determining the first carbon footprint corresponding to the target production link based on the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product.

[0034] Based on the same inventive concept, in a fifth aspect, an embodiment of the present application further provides a product carbon footprint accounting system, comprising: a production link carbon footprint accounting device as in the fourth aspect, for determining the first carbon footprint corresponding to the target production link in any target production link among K production links for a target batch of products, so as to obtain K first carbon footprints, and determine a first total carbon footprint based on the K first carbon footprints; a product carbon footprint accounting device, connected to the production link carbon footprint accounting device, comprising: a second acquisition module, connected to the production link carbon footprint accounting device, for obtaining the total raw material consumption and the second carbon footprint corresponding to any raw material among X raw materials of the target batch of products, so as to obtain X total raw material consumption and X second carbon footprints; a second determination module is connected to the second acquisition module, for determining the first total carbon footprint based on the K first carbon footprints; a third determination module is connected to the second determination module, for determining the second total carbon footprint of the raw materials of the target batch of products based on the X total raw material consumption, the X second carbon footprints and the target product output; a fourth determination module is connected to the third determination module, for determining the target total carbon footprint of the target batch of products based on the first total carbon footprint and the second total carbon footprint.

[0035] Based on the same inventive concept, in the sixth aspect, the embodiment of the present application also provides a production link carbon footprint optimization system, including: a production link carbon footprint accounting device as in the fourth aspect, used to determine a first carbon footprint corresponding to a target production link; a production link carbon footprint optimization device, connected to the production link carbon footprint accounting device, including: an optimization module, connected to the production link carbon footprint accounting device, used to optimize the flexible load and energy system corresponding to the target production link when the first carbon footprint is greater than the carbon footprint baseline of the target production link, to obtain a first optimization result, and the first optimization result is used to reduce the first carbon footprint of the next production link of the target production link.

[0036] In some embodiments of the sixth aspect, the system also includes a third acquisition module, which includes: an acquisition submodule, used to acquire a production scheduling plan for a target production link; a prediction submodule, connected to the acquisition submodule, used to predict the new energy power generation power and terminal energy consumption within the entire cycle contained in the production scheduling plan, and obtain a prediction result; an optimization submodule, connected to the prediction submodule, used to optimize the operation strategy of the energy system based on the prediction result, and obtain a second optimization result; a production link carbon footprint accounting device, connected to the optimization submodule, and also used to take the production link corresponding to the second optimization result as the target production link, determine the first carbon footprint of the production link corresponding to the second optimization result, and determine the first carbon footprint of the production link corresponding to the second optimization result as the carbon footprint baseline of the target production link.

[0037] According to the production link carbon footprint accounting method and device, product carbon footprint accounting method and system, and production link carbon footprint optimization method and system provided in the embodiments of the present application, by comprehensively considering the target product output, N first consumption rates, N first dynamic carbon emission factors and the total production time of the target product, it is possible to fully consider the diversified energy production structure within the enterprise, and thus improve the accuracy of the first carbon footprint corresponding to the target production link, thereby improving the accuracy of the product carbon footprint and making the product carbon footprint more refined. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram showing a process of calculating carbon footprint in production provided by an embodiment of the present application;

[0039] Figure 2 A schematic diagram showing a process flow of a product carbon footprint calculation method provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram showing a process of the method for optimizing carbon footprint in production provided by an embodiment of the present application;

[0041] Figure 4 A schematic diagram showing a process of dynamic calculation and optimization of product carbon footprint provided by an embodiment of the present application;

[0042] Figure 5 A schematic diagram showing a process of dynamically calculating the carbon footprint of a product provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram showing a process of establishing an energy system model provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram showing a process of multi-dimensional optimization of an energy system and a production system provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram showing a structure of a production link carbon footprint accounting device provided in an embodiment of the present application;

[0046] Fig. 9 A structural schematic diagram of a product carbon footprint accounting system provided by an embodiment of the present application is shown;

[0047] Fig.10 A structural schematic diagram of a production link carbon footprint optimization system provided in an embodiment of the present application is shown;

[0048] Fig.11 A structural schematic diagram of product carbon footprint accounting and optimization provided by an embodiment of the present application is shown. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0050] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0052] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] Before introducing the carbon footprint accounting method for the production process provided in the embodiment of the present application, the prior art that may be involved in the embodiment of the present application is first described.

[0054] 1. The existing method calculates the carbon footprint of products based on the average carbon emission factor of the external large power grid. For industrial enterprises that build their own distributed energy systems, it ignores the diversified energy production and conversion structure within the enterprise, resulting in inaccurate and imprecise calculation results, making it difficult to determine the key factors for product carbon reduction and propose effective enterprise operation and management measures.

[0055] 2. The operational optimization methods involved in the existing methods only consider one dimension, namely flexible load regulation, and the carbon reduction effect is limited.

[0056] Example 1

[0057] The production link carbon footprint accounting method provided in the embodiment of the present application can be executed by a production link carbon footprint accounting device, electronic equipment, and product carbon footprint accounting and optimization equipment. The following is an example of the production link carbon footprint accounting method being executed by an electronic device.

[0058] like Figure 1 As shown, the carbon footprint accounting method for the production process provided in the embodiment of the present application includes steps S110 to S120.

[0059] S110. Obtain the target product output of the target batch of products, N first consumption rates corresponding to N terminal energy consumptions per unit time of the target batch of products in the target production link, N first dynamic carbon emission factors corresponding to N terminal energy consumptions, and the total production time of the target products in the target production link.

[0060] S120. Determine a first carbon footprint corresponding to a target production link according to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product.

[0061] According to the carbon footprint accounting method for the production link provided in the embodiment of the present application, by comprehensively considering the target product output, N first consumption rates, N first dynamic carbon emission factors and the total production time of the target product, it is possible to fully consider the diversified energy production structure within the enterprise, thereby improving the accuracy of the first carbon footprint corresponding to the target production link, thereby improving the accuracy of the product carbon footprint and making the product carbon footprint more refined.

[0062] The specific implementation methods of the above steps are introduced below.

[0063] In step S110, the target batch product may be any batch product for which the carbon footprint of the production process needs to be calculated. The target product output may be the output of the product in the target batch product.

[0064] Exemplarily, the target product output of the target batch of products may be pre-stored in the electronic device for subsequent direct retrieval.

[0065] In some embodiments, obtaining N first consumption rates corresponding to N terminal energy consumptions per unit time corresponding to a target batch of products in a target production link includes:

[0066] For any terminal energy consumption among the N terminal energy consumptions, obtain the N first consumption rates corresponding to any time t between the start time and the end time of the target production link.

[0067] The target production link can be any production link of the target batch of products.

[0068] The first consumption rate may be the energy consumption rate of the terminal at any time t corresponding to the target production link.

[0069] The value of N can be set according to actual conditions and is not limited here. For example, the value of N can be 5, and the 5 terminal energy uses can include electricity, heat, cold, fuel, and compressed air. Of course, terminal energy uses can also include other terminal energy uses besides electricity, heat, cold, fuel, and compressed air, which are not limited here.

[0070] Exemplarily, for any terminal energy consumption among the N terminal energy consumptions, the electronic device acquires the first consumption rate at any time t through collection so as to directly call it later.

[0071] In some implementations, obtaining N first dynamic carbon emission factors corresponding to N terminal energy consumptions one by one includes:

[0072] For any terminal energy consumption among the N terminal energy consumptions, obtain M second dynamic carbon emission factors, M first conversion efficiencies, and M first ratios corresponding to the terminal energy consumption at any time t, so as to obtain N*M second dynamic carbon emission factors, N*M first conversion efficiencies, and N*M first ratios;

[0073] For any terminal energy consumption among the N terminal energy consumptions, the M first conversion efficiencies, the M first ratios and the M second dynamic carbon emission factors corresponding to the terminal energy consumption at any time t are substituted into formula (1) for calculation to obtain the first dynamic carbon emission factor corresponding to the terminal energy consumption, so as to obtain the N first dynamic carbon emission factors at any time t;

[0074] Formula (1) includes:

[0075]

[0076] in, represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; α ijt represents the first proportion of terminal energy consumption j converted from available energy resource i at any time t, that is, the i-th first proportion of terminal energy consumption j corresponding to any time t; represents the dynamic carbon emission factor of available energy resource i at any time t, that is, the i-th second dynamic carbon emission factor corresponding to terminal energy j at any time t; η ijt It represents the first conversion efficiency of available energy resource i into terminal energy j at any time t, that is, the i-th first conversion efficiency corresponding to terminal energy j at any time t.

[0077] The first dynamic carbon emission factor may be the dynamic carbon emission factor of the factory terminal energy j (including electricity, heat, cold, fuel, compressed air, etc.). The second dynamic carbon emission factor may be the dynamic carbon emission factor of the factory's available energy resources i (including renewable energy such as wind / light, fossil energy such as coal / oil, power grid, external heating network, external cooling network, etc.). The first conversion efficiency may be the conversion efficiency of the available energy resource i into the factory terminal energy j at any time t (the rated energy efficiency (COP) of equipment such as refrigeration units and heat pumps). The first ratio may be the ratio of the factory terminal energy j converted from the available energy resource i at any time t, with a value range of [0,1], and satisfies

[0078] As an example, the electronic device may pre-store M second dynamic carbon emission factors, M first conversion efficiencies and M first ratios corresponding to each terminal energy consumption, so as to facilitate subsequent direct call-up.

[0079] As another example, the first ratio may be obtained through actual measurement; and the second dynamic carbon emission factor may come from a manually reported database.

[0080] Exemplarily, M second dynamic carbon emission factors corresponding to the terminal energy consumption can be obtained from the target data, wherein the target data includes the available energy resources in the area where the park is located, the dynamic carbon emission data of the energy outside the park, the dynamic carbon emission data of the product raw materials, the energy data inside the park, the production data, etc. Among them, the available energy resources in the area where the park is located include but are not limited to the scale of renewable energy construction such as photovoltaics and wind turbines, and the available scope of fossil energy such as gas, coal, and oil; the dynamic carbon emission data of raw materials, that is, the carbon emission factor of raw materials, includes three parts of information: one is the type and model of raw materials, two is the manufacturer of such raw materials, and three is the production batch of such raw materials (for example, the raw material manufacturer builds distributed photovoltaics, and production mainly uses electricity. Batch A of raw materials is produced from 11:00 to 15:00, and batch B is produced from 20:00 to 24:00. Due to the characteristics of photovoltaic power generation, batch A of raw materials has a lower carbon footprint); the dynamic carbon emission data of external energy of the park includes the carbon emission factors of the external power grid and heating network; energy data within the park includes distributed energy structure, power generation, purchased electricity, real-time energy consumption in each production link, etc.; production data includes production plan, output, raw material quantity, etc.

[0081] The available energy resources in the area where the park is located can be pre-stored in electronic devices for subsequent direct retrieval, or can be entered manually; the dynamic carbon emission data of the park's external energy can come from the data declared by external energy suppliers or government disclosures, for example, the carbon source data of grid electricity can come from the carbon emission factors of domestic regional grids disclosed by the Ministry of Ecology and Environment; the dynamic carbon emission data of product raw materials come from the declaration of raw material suppliers. When the carbon footprint system of raw material suppliers is not sound, the industry statistical average can be used for calculation (the industry statistical average is manually entered); the park's internal energy data can come from various energy meters in the park, or from the park's energy system (provided that the park's energy management system has complete monitoring of various energy sources such as cooling, heating, and electricity in the park); production data can come from the park's production management system.

[0082] In some examples, obtaining M first conversion efficiencies corresponding to the terminal energy at any time t may include:

[0083] The dynamic operation model is used to obtain M first conversion efficiencies corresponding to the terminal energy consumption at any time t. The dynamic operation model is used to characterize the energy efficiency change relationship caused by the load rate change during the operation of the energy equipment under non-rated conditions.

[0084] In this example, the M first conversion efficiencies corresponding to the terminal energy consumption can be quickly and accurately obtained by dynamically running the model.

[0085] The dynamic operation model may be a dynamic operation model of an energy device, and the dynamic operation model may be used to characterize the dynamic mapping between production terminal energy consumption and energy system operation plans.

[0086] Exemplarily, a dynamic operation model may be pre-stored in the electronic device for subsequent direct call.

[0087] Exemplarily, M=3, at any time t, the M second dynamic carbon emission factors corresponding to the terminal energy consumption j include 100kg CO2e / kWh, 150kg CO2e / kWh and 200kg CO2e / kWh respectively, the M first conversion efficiencies corresponding to the terminal energy consumption j include 0.80, 0.85 and 0.80 respectively; the M first ratios corresponding to the terminal energy consumption j include 0.8, 0.1 and 0.1 respectively; then the first dynamic carbon emission factor corresponding to the terminal energy consumption j is The above numerical values ​​are only used for examples and are not used to limit this application. The value of M can be set according to actual conditions.

[0088] In step S120, after obtaining the target product output of the target batch of products, the N first consumption rates corresponding to the N terminal energy consumptions per unit time corresponding to the target production link of the target batch of products, the N first dynamic carbon emission factors corresponding to the N terminal energy consumptions, and the total production time of the target products in the target production link, the electronic device can also determine the first carbon footprint corresponding to the target production link based on the target product output, the N first consumption rates, the N first dynamic carbon emission factors, and the total production time of the target products.

[0089] The total production time of the target product can be pre-stored in the electronic device for direct subsequent use. The first carbon footprint can be the carbon footprint of the target production link.

[0090] In some embodiments, determining a first carbon footprint corresponding to a target production link according to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product includes:

[0091] During the production time of the target link, substitute the N first consumption rates, N first dynamic carbon emission factors, the total production time of the target product, and the target product output corresponding to any time t into formula (2) for calculation to obtain the first carbon footprint corresponding to the target production link;

[0092] Formula (2) includes:

[0093]

[0094] Among them, CF P,k represents the first carbon footprint corresponding to the target production link k; Q j,t represents the first consumption rate of terminal energy j at any time t; T represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; krepresents the total production time of the target product; P represents the output of the target product.

[0095] In this embodiment, according to the above formula (2), the first carbon footprint corresponding to the target production link can be determined quickly and accurately.

[0096] For example, the target product output P is 1000 tons, and the total production time T corresponding to the target product in the production link k is k The hourly average first consumption of electricity (i.e., terminal energy consumption j=1) includes 500kWh, 550kWh, 600kWh, 650kWh, 700kWh, 750kWh, 700kWh, 650kWh, 600kWh and 550kWh respectively, and the hourly average first dynamic carbon emission factors corresponding to electricity include: 0.60kg CO2e / kWh, 0.58kg CO2e / kWh, 0.57kg CO2e / kWh, 0.55kgCO2e / kWh, 0.54kg CO2e / kWh, 0.52kg CO2e / kWh, 0.53kg CO2e / kWh, 0.55kg CO2e / kWh, 0.56kgCO2e / kWh and 0.58kg CO2e / kWh; the first hourly consumption corresponding to natural gas (i.e., terminal energy consumption j=2) includes 100kWh, 110kWh, 120kWh, 130kWh, 140kWh, 150kWh, 140kWh, 130kWh, 120kWh and 110kWh respectively, and the first hourly dynamic carbon emission factors corresponding to natural gas include 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh, 2.1kg CO2e / kWh and 2.1kg CO2e / kWh respectively; then substitute the above data into formula (2) for calculation, and obtain the first carbon footprint CF P,k =6.095kg CO2e / ton.

[0097] Example 2

[0098] The product carbon footprint accounting method provided in the embodiment of the present application can be executed by a product carbon footprint accounting device, an electronic device, a product carbon footprint accounting and optimization device, etc. The following is an example of the product carbon footprint accounting method being executed by an electronic device.

[0099] like Figure 2 As shown, the product carbon footprint calculation method provided in the embodiment of the present application may include steps S210 to S250.

[0100] S210. For any target production link of the target batch of products in the K production links, determine the first carbon footprint corresponding to the target production link according to any method of Example 1 to obtain K first carbon footprints.

[0101] S220: Determine a first total carbon footprint according to the K first carbon footprints.

[0102] S230. For any raw material among the X raw materials of the target batch product, obtain the total raw material consumption and the second carbon footprint corresponding to the raw material to obtain X total raw material consumption and X second carbon footprints.

[0103] S240: Determine the second total carbon footprint of the raw materials of the target batch of products according to the X total raw material consumptions, the X second carbon footprints and the target product output.

[0104] S250. Determine a target total carbon footprint of a target batch of products according to the first total carbon footprint and the second total carbon footprint.

[0105] According to the product carbon footprint accounting method provided in the embodiment of the present application, by comprehensively considering the target product output, N first consumption rates, N first dynamic carbon emission factors and the total production time of the target product, the diversified energy production structure within the enterprise can be fully considered, thereby improving the accuracy of the first carbon footprint corresponding to the target production link; according to X total raw material consumption, X second carbon footprints and the target product output, the second total carbon footprint of the raw materials of the target batch product can be accurately determined; in summary, the first total carbon footprint is determined according to the K first carbon footprints, and the accuracy of the product carbon footprint can be improved according to the first total carbon footprint and the second total carbon footprint, and the product carbon footprint can be made more refined.

[0106] The specific implementation methods of the above steps are introduced below.

[0107] The specific implementation of step S210 can be found in Example 1 and will not be described in detail here.

[0108] In step S220, after obtaining the K first carbon footprints, the electronic device may further determine a first total carbon footprint according to the K first carbon footprints.

[0109] In some embodiments, determining a first total carbon footprint according to the K first carbon footprints includes:

[0110] Substitute the K first carbon footprints into formula (3) to calculate and obtain the first total carbon footprint;

[0111] Formula (3) includes:

[0112]

[0113] Among them, CF P Represents the first total carbon footprint; CF P,k Represents the first carbon footprint corresponding to the target production link k.

[0114] In this embodiment, the first total carbon footprint can be determined quickly and accurately through the above formula (3).

[0115] The first total carbon footprint may be the total carbon footprint of the product during the production process.

[0116] That is, the sum of the K first carbon footprints is determined as the first total carbon footprint.

[0117] K is the total number of production links corresponding to the product. The value of K can be set according to actual conditions and is not limited here. For example, K can be 5, 10, 21, etc.

[0118] For example, K=3, CF 1000,1 =6.095kg CO2e / ton; CF 1000,2 =8.205kg CO2e / ton; CF 1000,3 =7.922kg CO2e / ton; then, the first total carbon footprint CF P =22.222kg CO2e / ton.

[0119] In step S230, after determining the first total carbon footprint, the electronic device may also obtain the total raw material consumption and the second carbon footprint corresponding to any raw material among the X raw materials of the target batch product to obtain X total raw material consumption and X second carbon footprints.

[0120] Exemplarily, the second carbon footprint corresponding to the raw material is pre-stored in the electronic device for subsequent direct retrieval.

[0121] In some embodiments, obtaining the total raw material consumption corresponding to the raw material may include:

[0122] Obtain the raw material consumption of the raw materials corresponding to any target production link in the K production links to obtain K raw material consumptions;

[0123] The sum of the K raw material consumptions is determined as the total raw material consumption corresponding to the raw material.

[0124] Exemplarily, the electronic device may pre-store the raw material consumption of the raw materials corresponding to any target production link among the K production links for subsequent direct call.

[0125] In other embodiments, the total raw material consumption corresponding to the raw materials may be pre-stored in the electronic device for subsequent direct retrieval.

[0126] In step S240, after obtaining the X total raw material consumptions and the X second carbon footprints, the electronic device may also determine the second total carbon footprint of the raw materials of the target batch product according to the X total raw material consumptions, the X second carbon footprints and the target product output.

[0127] The second total carbon footprint may be the total carbon footprint of the product in raw materials.

[0128] In some embodiments, determining the second total carbon footprint of raw materials of the target batch product according to X total raw material consumption, X second carbon footprints and target product output includes:

[0129] Substitute X total raw material consumption, X second carbon footprints and target product output into formula (4) to calculate and obtain the second total carbon footprint of the raw materials of the target batch of products;

[0130] Formula (4) includes:

[0131]

[0132] Among them, CF M A second total carbon footprint representing the raw materials of the target batch of products; represents the total raw material consumption of raw material i; represents the second carbon footprint of raw material i; P represents the target product output.

[0133] In this embodiment, the second total carbon footprint of the raw materials of the target batch of products can be determined quickly and accurately through the above formula (4).

[0134] For example, X is 3, the total raw material consumption includes 200 tons, 150 tons and 100 tons respectively, and the second carbon footprint includes 50 kg CO2e / ton, 80 kg CO2e / ton and 100 kg CO2e / ton respectively; the target product output is 1000 tons, then substitute the above data into formula (4) for calculation, and the second total carbon footprint CF is obtained: M =32kg CO2e / ton. The above values ​​are only used for examples and are not used to limit the present application. The value of X can be set according to actual conditions and is not limited here.

[0135] In step S250, after determining the second total carbon footprint of the raw materials of the target batch of products, the electronic device may further determine a target total carbon footprint of the target batch of products according to the first total carbon footprint and the second total carbon footprint.

[0136] In some embodiments, determining a target total carbon footprint of a target batch of products according to the first total carbon footprint and the second total carbon footprint includes:

[0137] Substitute the first total carbon footprint and the second total carbon footprint into formula (5) to calculate and obtain the target total carbon footprint of the target batch of products;

[0138] Formula (5) includes:

[0139] CF=CF M +CF P (5)

[0140] Where CF represents the target total carbon footprint of the target batch of products; CF P Represents the first total carbon footprint; CF M Represents the second total carbon footprint.

[0141] In this embodiment, the target total carbon footprint of the target batch of products can be determined quickly and accurately through the above formula (5).

[0142] For example, the first total carbon footprint CF P = 22.222kg CO2e / ton, the second total carbon footprint CF M =32kg CO2e / ton, then the target total carbon footprint CF = 54.222kg CO2e / ton.

[0143] Example 3

[0144] The production link carbon footprint optimization method provided in the embodiment of the present application can be executed by a production link carbon footprint optimization device, electronic equipment, and product carbon footprint accounting and optimization equipment. The following is an example of the production link carbon footprint optimization method being executed by an electronic device.

[0145] like Figure 3 As shown, the production process carbon footprint optimization method provided in the embodiment of the present application may include steps S310 to S320.

[0146] S310. Determine a first carbon footprint corresponding to a target production link according to the production link carbon footprint calculation method of any one of the first embodiments.

[0147] S320. When the first carbon footprint is greater than the carbon footprint baseline of the target production link, the flexible load and energy system corresponding to the target production link are optimized to obtain a first optimization result. The first optimization result is used to reduce the first carbon footprint of the next production link of the target production link.

[0148] According to the carbon footprint optimization method for production links provided in an embodiment of the present application, when the first carbon footprint is greater than the carbon footprint baseline of the target production link, the flexible load and energy system corresponding to the target production link are optimized to obtain a first optimization result, which can reduce the first carbon footprint of the next production link of the target production link.

[0149] The specific implementation methods of the above steps are introduced below.

[0150] For the specific implementation of step S310, please refer to Example 1 and will not be described in detail here.

[0151] In step S320, the flexible load indicates the production flexible load, which refers to the load in the production link that can be time-shifted, adjusted, temporarily interrupted, and does not affect production safety, product quality, etc. For example, a product is divided into three links, A, B, and C, which are discrete production. After the A link is completed, it enters the waiting area (the waiting area can store 1,000 products). After the A link of 10 or more products is completed, it will enter the B link as a group of 10 products. After the B link is completed, it must immediately enter the C link. If the opening time of the B link is adjustable within a certain range, the energy load of the B+C link is considered to be a shiftable load, that is, it is allowed to be advanced or delayed in time.

[0152] For example, when the first carbon footprint is greater than the carbon footprint baseline of the target production link, the flexible load and energy system corresponding to the target production link are optimized in the short term to obtain the first optimization result. Among them, short-term optimization refers to the investigation of production flexible loads on the premise that the previous production link has been completed, and the use time of this part of the energy load can be adjusted again. At the same time, the actual control commands of each energy device can be updated again based on real-time data to meet the minimum carbon footprint target.

[0153] For example, the first carbon footprint is 6.095 kg CO2e / ton, and the carbon footprint baseline of the target production link is 6.000 kg CO2e / ton. Then, the flexible load and energy system corresponding to the target production link can be optimized in the short term to obtain the first optimization result.

[0154] In some embodiments, before optimizing the flexible load and energy system corresponding to the target production link, the method further includes: obtaining a carbon footprint baseline of the target production link,

[0155] Obtain a carbon footprint baseline for the target production process, including:

[0156] Obtain the production schedule of the target production link;

[0157] According to the production scheduling plan, the renewable energy power generation and terminal energy consumption within the entire cycle are predicted to obtain the prediction results;

[0158] Based on the prediction results, the operation strategy of the energy system and the start and end time of each production link are optimized to obtain a second optimization result;

[0159] The production link corresponding to the second optimization result is taken as the target production link, and the first carbon footprint of the production link corresponding to the second optimization result is determined according to the production link carbon footprint accounting method of any one of Example 1, and the first carbon footprint of the production link corresponding to the second optimization result is determined as the carbon footprint baseline of the target production link.

[0160] Exemplarily, the start and end time of each production link may be pre-stored in the electronic device.

[0161] Exemplarily, the production schedule can be imported from the production management platform, and each record of the production schedule may include: product batch, output, and the planned production time period for the production of the batch of products (XX / XX / XX--XX / XX / XX / XX).

[0162] Exemplarily, after obtaining the production scheduling plan, that is, obtaining the planned production time period of the batch of products (XX year XX month XX day XX hour - XX year XX month XX day XX hour), the new energy power generation can be predicted based on the weather conditions of the time period (for example, predicting a point every 15 minutes), and the predicted new energy power generation can be obtained. Then, the production terminal energy load can be predicted based on the output and weather (one point every 15 minutes). For example, the production of a product includes 4 production links, and the production cycle of each link is 1h, 3h, 5h and 20h. The production schedule is August 7-August 9, then it is necessary to predict the energy load from August 7 to August 9 to obtain the predicted energy load.

[0163] It should be noted that the prediction methods for renewable energy power generation and production terminal energy consumption include but are not limited to random forests, neural networks, etc. These methods are already existing and relatively mature, and the specific prediction methods are not described here.

[0164] Exemplarily, based on the optimization model and the prediction results, the operation strategy of the energy system is optimized to obtain a second optimization result. The second optimization result may include the optimal start time of each production link, the optimal actual control command set of each energy device within the batch production plan time period, the first proportion of the production link corresponding to the second optimization result, the second dynamic carbon emission factor of the production link corresponding to the second optimization result, and the first conversion efficiency of the production link corresponding to the second optimization result. The optimal actual control command set may include the opening command, closing command, operating load rate, etc. of each energy device every 15min / 1h.

[0165] The process of establishing the optimization model may include: setting the optimization goal of minimizing the carbon footprint of the product, optimization variables and constraints. The optimization variables include the start time of each production link and the actual control command set of each energy equipment within the batch production plan time period. The constraints include the batch production plan, the upper and lower limits of the input and output of each energy equipment, and the static operation model and dynamic operation model of each energy equipment. Based on the optimization goal, optimization variables and constraints, mixed integer linear programming, heuristic algorithms, etc. are used to solve and obtain the optimization results.

[0166] It should be noted that existing algorithms such as mixed integer linear programming and heuristic algorithms are relatively mature and will not be described in detail here. The static operation model of energy equipment refers to the fixed input and output energy relationship and rated energy efficiency of the equipment. Taking the refrigeration unit as an example, the fixed input energy type is electrical energy, the fixed output energy type is cooling energy, and the rated energy efficiency (COP) is 4.

[0167] It is understandable that the carbon footprint baseline of each link is calculated based on the first optimization result of the previous step. It can also be considered that if the first optimization result of the previous step is strictly followed, the carbon footprint of the product will be the smallest. However, due to force majeure factors such as weather, as well as management problems such as operational errors, the carbon footprint of the product in a certain target production link may be greater than the carbon footprint baseline. In order to maintain the carbon footprint of the final product at a low level, it is necessary to optimize the subsequent production links.

[0168] It should be noted that the production link corresponding to the second optimization result is used as the target production link, and steps S110 to S120 in Example 1 are executed.

[0169] For example, when all production links of a product are completed, the experience gained in this production is absorbed to optimize the production scheduling plan for the next production cycle. For example, the production links of a product are: link A 1h, link B 15h, link C 2h, link D 5h, and there must be a 2h rest between link B and link C. The entire production cycle is 23h. A factory mainly sells this product, and the production plan is set to start the entire production process at 6:30 every day. Based on the long-term data accumulation and optimization results, recommendations can be made on the optimization plan in reverse.

[0170] In order to better understand the production link carbon footprint accounting method, product carbon footprint accounting method and production link carbon footprint optimization method provided in the embodiments of the present application, in a more specific implementation manner, Figure 4 As shown, a product carbon footprint calculation and optimization method provided in an embodiment of the present application includes:

[0171] (1) Import product production processes and energy requirements.

[0172] Among them, the product production process includes the product process links, and the energy demand includes the terminal energy type (such as cold, heat, electricity, gas, compressed air, etc.).

[0173] Although the digital level of enterprises is constantly improving, the production management platform and energy management platform used for production usually start from different perspectives and are not strongly related. Therefore, the product production process and energy demand are more of a manual configuration process, in which the product process can be imported from the production management platform, and the terminal energy type of each product process needs to be manually configured.

[0174] (2) Obtaining data: available energy resources in the area where the park is located, carbon emission data of external energy in the park, carbon emission data of product raw materials, internal energy data of the park, production data, etc.

[0175] Among them, the available energy resources (i.e., available energy resources) in the area where the park is located include but are not limited to the constructible scale of renewable energy such as photovoltaics and wind turbines, and the available scope of fossil energy such as gas, coal, and oil; the dynamic carbon emission data of the park's external energy includes the carbon emission factors of the external power grid and heating network; the dynamic carbon emission data of product raw materials, i.e., the carbon emission factors of raw materials, include three parts of information: one is the type and model of raw materials, two is the manufacturer of such raw materials, and three is the production batch of such raw materials (for example, the raw material manufacturer builds distributed photovoltaics, and production mainly uses electricity. Batch A of raw materials is produced from 11:00 to 15:00, and batch B is produced from 20:00 to 24:00. Due to the characteristics of photovoltaic power generation, batch A of raw materials has a lower carbon footprint); energy data within the park includes distributed energy structure, power generation, purchased electricity, real-time energy consumption in each production link, etc.; production data includes production plan, output, raw material quantity, etc.

[0176] The available energy resources in the area where the park is located can be entered manually; the dynamic carbon emission data of the park's external energy can come from the data declared by external energy suppliers or government disclosures. For example, the carbon source data of grid electricity can come from the carbon emission factors of domestic regional grids disclosed by the Ministry of Ecology and Environment; the dynamic carbon emission data of product raw materials come from the declaration of raw material suppliers. When the carbon footprint system of raw material suppliers is not sound, the industry statistical average can be used for calculation (the industry statistical average is manually entered); the park's internal energy data can come from various energy meters in the park, or from the park's energy system (provided that the park's energy management system has complete monitoring of various energy sources such as cooling, heating, electricity, etc. in the park); production data can come from the park's production management system.

[0177] (3) Dynamically calculate product carbon footprint.

[0178] like Figure 5 As shown in the figure, the dynamic calculation of product carbon footprint is divided into three parts: establishing an energy system model, establishing an energy-production coupling model, and calculating product carbon footprint based on real-time data.

[0179] ①Establish energy system model

[0180] like Figure 6 As shown, establishing an energy system model may include sorting out the energy equipment included in the park energy system; establishing a topological network of the park energy system; establishing models of each energy equipment (including static models and dynamic models, that is, static operation models and dynamic operation models); mapping between production terminal energy consumption and energy system operation plans; and energy system model verification.

[0181] First, we sort out the energy equipment included in the park energy system, and then establish the static operation model and dynamic operation model of the park energy system topology network and each energy equipment, forming a dynamic mapping between production terminal energy consumption and energy system operation plan, and calculating the dynamic carbon emission factor of production terminal energy (cold, heat, electricity, gas, compressed air, etc.) according to the output of each energy source, as shown in the following formula:

[0182]

[0183] in, It represents the dynamic carbon emission factor (i.e. the second dynamic carbon emission factor of the i-th) of the available energy resource i of the factory (including renewable energy such as wind / solar, fossil energy such as coal / oil, power grid, external heating network, external cooling network, etc.) at any time t; represents the dynamic carbon emission factor (i.e., the first dynamic carbon emission factor) of the factory terminal energy j (including electricity, heat, cold, fuel, compressed air, etc.) at any time t; M represents the total amount of available energy resources; η ijt represents the conversion efficiency of available energy resource i into factory terminal energy j at any time t (cop of refrigeration unit, heat pump and other equipment) (i.e. the i-th first conversion efficiency); α ijt represents the proportion of the terminal energy j of the plant converted from the available energy resource i at any time t (i.e., the i-th first proportion), with a value range of [0,1] and satisfying

[0184] Energy equipment refers to energy production and conversion equipment such as gas boilers (which convert the chemical energy of gas into thermal energy (steam)), refrigeration units (which input electrical energy and output cold energy), and photovoltaics (which convert solar energy into electrical energy).

[0185] After sorting out the energy equipment included in the park's energy system, the sorting result is to list the types of energy equipment in the park, the number of each type of energy equipment, and the models. For example, a park includes two 1MW compression refrigeration units, a 2MW photovoltaic installation, and a 2MW gas boiler.

[0186] The park energy system topology network includes the park's input energy type, terminal energy type, and the relationship between energy devices.

[0187] The static operation model of energy equipment refers to the fixed input and output energy relationship and rated energy efficiency of the equipment. Taking the refrigeration unit as an example, the fixed input energy type is electrical energy, the fixed output energy type is cooling energy, and the rated energy efficiency (COP) is 4.

[0188] The dynamic operation model of the equipment refers to the relationship between the energy efficiency changes caused by the load rate changes when the energy equipment operates under non-rated conditions for a certain period of time during operation.

[0189] ② Establish an energy-production coupling model. First, divide the production process links, and collect statistics on the dynamic data of raw material quantity, output, and various terminal energy consumption rates in each production link of batch products with an hourly cycle (the cycle interval is not limited to 1 hour and is configurable), and then obtain the raw material consumption of batch products and the dynamic consumption rate of terminal energy (cold, heat, electricity, gas, compressed air, etc.) in each production link. That is, fit the dynamic relationship between raw materials-output and various terminal energy consumption rates-output in each production link to construct a dynamic mapping of production output, raw material consumption, and terminal energy consumption, and calibrate and roll the model.

[0190] The production process may be time-parallel or time-serial, and different production processes may use the same raw material. For the entire batch of products, the amount of the same raw material in each process needs to be added up to get the raw material consumption of the batch of products. Here, for each production process, from the start time of the process to the end time of the process, the terminal energy consumption rate is counted in hours (the cycle interval is not limited to 1 hour and is configurable) to get the dynamic consumption rate of terminal energy (cold, heat, electricity, gas, compressed air, etc.).

[0191] ③ Calculation of product carbon footprint based on real-time data. First, based on the two models mentioned above, the consumption of raw materials in each production link and the dynamic consumption rate and dynamic carbon emission factor of terminal energy (cold, heat, electricity, gas, compressed air, etc.) are calculated, and then the carbon footprint of the product is dynamically and accurately calculated:

[0192] CF=CF M +CF P

[0193] Among them, CF M CF P They represent the carbon footprint of the product in raw materials (i.e. the second total carbon footprint) and production links (i.e. the first total carbon footprint) respectively.

[0194]

[0195] Where P represents the output of a batch of products; Represents the amount of raw material i in a batch; represents the carbon footprint of raw material i.

[0196]

[0197] Among them, Q j,t represents the consumption rate (i.e., the first consumption rate) of terminal energy j (electricity, heat, cold, fuel, compressed air, etc.) at any time t, T k represents the total production time of the product in the kth production link (i.e. the total production time of the target product), It represents the dynamic carbon emission factor (i.e. the first dynamic carbon emission factor) of the terminal energy j (including electricity, heat, cold, fuel, compressed air, etc.) required by the factory at any time t.

[0198] (3) Multi-dimensional optimization of energy and production, that is, multi-dimensional optimization of energy systems and production systems. This step is divided into three levels: day-ahead optimization, long-term production plan optimization, and short-term flexible load aggregation and energy system operation parameter optimization.

[0199] like Figure 7 As shown, firstly, the production schedule is imported, and the new energy power generation and production terminal energy consumption within the entire cycle included in the production schedule are predicted; then, the operation strategy of the energy system is optimized based on the prediction results; then, the carbon footprint baseline of each production link is calculated: after the formal start of production, the aforementioned dynamic accounting method (i.e., the production link carbon footprint accounting method) is used to record the actual value of the carbon footprint of each production link (i.e., the first carbon footprint). If the value is greater than the baseline value (i.e., the carbon footprint baseline), the flexible load and energy system in production are optimized in the short term, and efforts are made to reduce the carbon footprint of the next production link to ensure the low carbon nature of the final product; when all production links are completed, the experience of this production is absorbed to optimize the production schedule for the next production cycle.

[0200] The production scheduling plan is imported from the production management platform to provide input information for this method. Each record of the production scheduling plan contains: product batch, output, and the planned production time period for the production of the batch of products (XX year XX month XX day XX hour - XX year XX month XX day XX hour).

[0201] After obtaining the production schedule, the planned production time period of the batch of products (XX year XX month XX day XX hour - XX year XX month XX day XX hour) is obtained. The new energy power generation can be predicted based on the weather conditions of the time period (one point is predicted every 15 minutes), and then the production terminal energy load can be predicted based on the output and weather (one point is predicted every 15 minutes). For example: the production of a product includes 4 production links, and the production cycle of each link is 1h, 3h, 5h and 20h. The production schedule is from August 7 to August 9, then the energy load from August 7 to 9 needs to be predicted.

[0202] Methods for predicting renewable energy power generation and production terminal energy consumption include but are not limited to random forests, neural networks, etc. These methods are relatively mature, and this part is not the focus of the embodiments of this application. The specific prediction methods are not described here.

[0203] The process of building an optimization model includes:

[0204] Optimization goal: Minimize product carbon footprint;

[0205] Optimization variables: start time of each production link, actual control command set of each energy equipment within the batch production plan time period (load rate of each equipment every 15 minutes / 1 hour)

[0206] Constraints: batch production plan, upper and lower limits of input and output of each energy device, static operation model and dynamic operation model of each energy device.

[0207] For the above optimization problem, mixed integer linear programming, heuristic algorithms, etc. can be used to solve it. These algorithms are available and relatively mature, so they will not be described in detail here.

[0208] The optimization results include: the optimal start time of each production link and the best actual control command set of each energy equipment within the batch production planning time period.

[0209] The carbon footprint baseline of each link is calculated based on the optimization results of the previous step. It can also be considered that if the optimization results of the previous step are strictly followed, the carbon footprint of the product will be the smallest. However, due to force majeure factors such as weather, as well as management problems such as operational errors, the carbon footprint of a certain link may be greater than the baseline. In order to maintain the carbon footprint of the final product at a low level, it is necessary to optimize the subsequent production links.

[0210] The flexible load here refers to the production flexible load, which refers to the load in the production link that can be shifted in time, adjusted, temporarily interrupted, and does not affect production safety, product quality, etc. For example, a product is divided into three links, A, B, and C, for discrete production. After the end of link A, it enters the waiting area (the waiting area can store 1,000 products). After the production of 10 or more products in link A is completed, 10 products will enter link B as a group. After link B is completed, it must immediately enter link C. Then, when the opening time of link B is adjustable within a certain range, the energy load of link B+C is considered to be a shiftable load, and the time is allowed to be advanced and then postponed.

[0211] Short-term optimization refers to checking the flexible production load on the premise that the previous production links have been completed, and the use time of this part of the energy load can be adjusted again. At the same time, the actual control commands of each energy device can be updated again based on real-time data to meet the minimum carbon footprint target.

[0212] The production process of a product: A process takes 1 hour, B process takes 15 hours, C process takes 2 hours, and D process takes 5 hours. The B process and C process must be left idle for 2 hours. The entire production cycle is 23 hours. A factory mainly produces this product, and the production plan is to start the entire production process at 6:30 every day. Based on our long-term data accumulation and optimization results, we can make recommendations on the optimization plan in reverse.

[0213] The embodiment of the present application is applicable to a dynamic calculation method for the carbon footprint of products of industrial enterprises that have built their own distributed energy systems. It can make full use of the multi-energy coupling characteristics of distributed energy systems, mobilize the coordination of energy and production, and release the carbon reduction potential of industrial enterprise products from multiple dimensions such as energy and production.

[0214] The embodiment of the present application provides a method for dynamic calculation and optimization of product carbon footprint. The method includes the introduction of production process and energy demand, park data acquisition, dynamic carbon footprint calculation, and multi-dimensional optimization process of energy system and production system. It is intended to calculate the consumption of raw materials in each link of production and the consumption rate and dynamic carbon emission factor of terminal energy (cold, heat, electricity, gas, compressed air, etc.) through the park energy system and energy-production model, so as to realize the dynamic calculation of product carbon footprint, improve the calculation accuracy, and provide convenience for the analysis of key influencing factors of product carbon footprint, which is helpful for the proposal of targeted improvement measures. In addition, by optimizing and making full use of the multi-energy coupling characteristics of distributed energy systems and mobilizing the coordination of energy and production, the carbon reduction potential of industrial enterprise products is released from multiple dimensions of energy and production through three-layer optimization of date, short-term and long-term.

[0215] Example 4

[0216] like Figure 8As shown, the production link carbon footprint accounting device 800 provided in the embodiment of the present application may include:

[0217] The first acquisition module 810 is used to obtain the target product output of the target batch of products, N first consumption rates corresponding to N terminal energy consumptions per unit time of the target batch of products corresponding to the target production link, N first dynamic carbon emission factors corresponding to N terminal energy consumptions, and the total production time of the target product in the target production link;

[0218] The first determination module 820 is connected to the first acquisition module 810, and is used to determine the first carbon footprint corresponding to the target production link according to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product.

[0219] In some implementations, the first acquisition module 810 is specifically configured to:

[0220] For any terminal energy consumption among the N terminal energy consumptions, obtain the N first consumption rates corresponding to any time t between the start time and the end time of the target production link.

[0221] In some implementations, the first acquisition module 810 is specifically configured to:

[0222] For any terminal energy consumption among the N terminal energy consumptions, obtain M second dynamic carbon emission factors, M first conversion efficiencies, and M first ratios corresponding to the terminal energy consumption at any time t, so as to obtain N*M second dynamic carbon emission factors, N*M first conversion efficiencies, and N*M first ratios;

[0223] For any terminal energy consumption among the N terminal energy consumptions, the M first conversion efficiencies, the M first ratios and the M second dynamic carbon emission factors corresponding to the terminal energy consumption at any time t are substituted into formula (1) for calculation to obtain the first dynamic carbon emission factor corresponding to the terminal energy consumption, so as to obtain the N first dynamic carbon emission factors at any time t;

[0224] Formula (1) includes:

[0225]

[0226] in, represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; α ijt represents the first proportion of terminal energy consumption j converted from available energy resource i at any time t, that is, the i-th first proportion of terminal energy consumption j corresponding to any time t; represents the dynamic carbon emission factor of available energy resource i at any time t, that is, the i-th second dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; η ijtIt represents the first conversion efficiency of available energy resource i into terminal energy j at any time t, that is, the i-th first conversion efficiency corresponding to terminal energy j at any time t.

[0227] In some implementations, the first determining module 820 is specifically configured to:

[0228] During the production time of the target link, substitute the N first consumption rates, N first dynamic carbon emission factors, the total production time of the target product, and the target product output corresponding to any time t into formula (2) for calculation to obtain the first carbon footprint corresponding to the target production link;

[0229] Formula (2) includes:

[0230]

[0231] Among them, CF P,k represents the first carbon footprint corresponding to the target production link k; Q j,t represents the first consumption rate of terminal energy j at any time t; T represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; k represents the total production time of the target product; P represents the output of the target product.

[0232] The production link carbon footprint accounting device provided in the embodiment of the present application can be used to execute the production link carbon footprint accounting method, that is, it has the beneficial effects and implementation methods of the production link carbon footprint accounting method provided in Example 1 of the present application. For details, please refer to the specific description of the production link carbon footprint accounting method in the above Example 1, and this embodiment will not be repeated here.

[0233] Example 5

[0234] like Fig. 9 As shown, the embodiment of the present application also provides a product carbon footprint accounting system 10, including:

[0235] For example, the production link carbon footprint accounting device 800 of Example 4 is used to determine the first carbon footprint corresponding to the target production link in any target production link among the K production links for the target batch of products, so as to obtain K first carbon footprints, and determine the first total carbon footprint based on the K first carbon footprints;

[0236] The product carbon footprint calculation device 900 is connected to the production process carbon footprint calculation device 800, and includes:

[0237] The second acquisition module 910 is connected to the production link carbon footprint accounting device 800, and is used to obtain the total raw material consumption and the second carbon footprint corresponding to any raw material among the X raw materials of the target batch product, so as to obtain X total raw material consumption and X second carbon footprints;

[0238] A second determination module 920, connected to the second acquisition module 910, is used to determine a first total carbon footprint according to the K first carbon footprints;

[0239] A third determination module 930, connected to the second determination module 920, is used to determine the second total carbon footprint of the raw materials of the target batch product according to the X total raw material consumption, the X second carbon footprints and the target product output;

[0240] The fourth determination module 940 is connected to the third determination module 930 and is used to determine a target total carbon footprint of a target batch of products according to the first total carbon footprint and the second total carbon footprint.

[0241] In some implementations, the second determining module 920 is specifically configured to:

[0242] According to the K first carbon footprints, the first total carbon footprint is determined, including:

[0243] Substitute the K first carbon footprints into formula (3) to calculate and obtain the first total carbon footprint;

[0244] Formula (3) includes:

[0245]

[0246] Among them, CF P Represents the first total carbon footprint; CF P,k Represents the first carbon footprint corresponding to the target production link k.

[0247] In some implementations, the second acquisition module 910 is specifically configured to:

[0248] Obtain the raw material consumption of the raw materials corresponding to any target production link in the K production links to obtain K raw material consumptions;

[0249] The sum of the K raw material consumptions is determined as the total raw material consumption corresponding to the raw material.

[0250] In some implementations of the fifth aspect, the third determination module 930 is specifically configured to:

[0251] Substitute X total raw material consumption, X second carbon footprints and target product output into formula (4) to calculate and obtain the second total carbon footprint of the raw materials of the target batch of products;

[0252] Formula (4) includes:

[0253]

[0254] Among them, CF M A second total carbon footprint representing the raw materials of the target batch of products; represents the total raw material consumption of raw material i; represents the second carbon footprint of raw material i; P represents the target product output.

[0255] The product carbon footprint accounting system provided in the embodiment of the present application can be used to execute the product carbon footprint accounting method, that is, it has the beneficial effects and implementation methods of the product carbon footprint accounting method provided in Example 2 of the present application. For details, please refer to the specific description of the product carbon footprint accounting method in the above Example 2, which will not be repeated in this embodiment.

[0256] Example 6

[0257] like Fig.10 As shown, the embodiment of the present application also provides a production process carbon footprint optimization system 20, including:

[0258] The production link carbon footprint calculation device 800 of Example 4 is used to determine the first carbon footprint corresponding to the target production link;

[0259] The production link carbon footprint optimization device 1000 is connected to the production link carbon footprint accounting device 800, and includes:

[0260] The optimization module 1010 is connected to the production link carbon footprint accounting device 800, and is used to optimize the flexible load and energy system corresponding to the target production link when the first carbon footprint is greater than the carbon footprint baseline of the target production link, and obtain a first optimization result. The first optimization result is used to reduce the first carbon footprint of the next production link of the target production link.

[0261] In some embodiments, the system further includes a third acquisition module, the third acquisition module including:

[0262] The acquisition submodule is used to obtain the production scheduling plan of the target production link;

[0263] The prediction submodule is connected to the acquisition submodule and is used to predict the renewable energy power generation and terminal energy consumption within the entire cycle included in the production scheduling plan and obtain the prediction result;

[0264] The optimization submodule is connected to the prediction submodule and is used to optimize the operation strategy of the energy system and the start and end time of each production link based on the prediction result to obtain a second optimization result;

[0265] The production link carbon footprint accounting device 800 is connected to the optimization submodule, and is also used to take the production link corresponding to the second optimization result as the target production link, determine the first carbon footprint of the production link corresponding to the second optimization result, and determine the first carbon footprint of the production link corresponding to the second optimization result as the carbon footprint baseline of the target production link.

[0266] The production link carbon footprint optimization system provided in the embodiment of the present application can be used to execute the production link carbon footprint optimization method, that is, it has the beneficial effects and implementation methods of the production link carbon footprint optimization method provided in Example 3 of the present application. For details, please refer to the specific description of the production link carbon footprint optimization method in the above Example 3, and this embodiment will not be repeated here.

[0267] The present application also provides a product carbon footprint calculation and optimization device, which includes:

[0268] The cabinet includes a cabinet body, a switch and a cabinet power supply, and the cabinet body is connected to the switch and the cabinet power supply respectively;

[0269] A data and application system, used to collect target data, and also used to collect and output the first optimization result;

[0270] A control device is connected to the cabinet and the data and application system, and is used to implement the production link carbon footprint accounting method as described in any one of Example 1, or the product carbon footprint accounting method as described in any one of Example 2, or the production link carbon footprint optimization method as described in any one of Example 3 according to the target data.

[0271] For example, a product carbon footprint dynamic accounting and optimization device adopts a hardware and software integrated architecture, such as Fig.11 As shown in the figure, the equipment for product carbon footprint accounting and optimization includes: cabinet hardware (i.e. cabinet), optimization control device (i.e. control device), and data server (i.e. data and application system). The cabinet hardware includes cabinets, switches, power supplies, uninterruptible power supplies (UPS) and other cabinet common equipment, which provide general services for the cabinets; the optimization control device adopts a hardware and software integrated design, and has multi-dimensional optimization control algorithms for energy systems and production systems; the data and application system is a data server with data interaction and analysis functions, including data collection, preprocessing of energy, production, and carbon emission related data, as well as the collection and output of optimization control results. Preprocessing includes data clarity, that is, removing abnormal or redundant data points and other operations.

[0272] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present application, but the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of the present application, and these modifications and improvements are also considered to be within the scope of protection of the present application.

Claims

1. A method for calculating carbon footprint in production, characterized in that: include: Obtain the target product output of the target batch of products, the N first consumption rates corresponding to the N terminal energy consumptions per unit time of the target batch of products in the target production link, the N first dynamic carbon emission factors corresponding to the N terminal energy consumptions, and the total production time of the target product in the target production link; The first carbon footprint corresponding to the target production link is determined according to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product.

2. The method according to claim 1, characterized in that Obtaining N first consumption rates corresponding to N terminal energy consumption per unit time corresponding to the target batch product in the target production link, including: For any terminal energy consumption among the N terminal energy consumptions, obtain the N first consumption rates corresponding to any time t between the start time and the end time of the target production link.

3. The method according to claim 1, characterized in that Obtaining N first dynamic carbon emission factors corresponding to N terminal energy consumptions, including: For any terminal energy consumption among the N terminal energy consumptions, obtain M second dynamic carbon emission factors, M first conversion efficiencies, and M first ratios corresponding to the terminal energy consumption at any time t, so as to obtain N*M second dynamic carbon emission factors, N*M first conversion efficiencies, and N*M first ratios; For any terminal energy consumption among the N terminal energy consumptions, the M first conversion efficiencies, the M first ratios and the M second dynamic carbon emission factors corresponding to the terminal energy consumption at any time t are substituted into formula (1) for calculation to obtain the first dynamic carbon emission factor corresponding to the terminal energy consumption, so as to obtain the N first dynamic carbon emission factors at any time t; The formula (1) includes: in, represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; α ijt represents the first proportion of terminal energy consumption j converted from available energy resource i at any time t, that is, the i-th first proportion of terminal energy consumption j corresponding to any time t; represents the dynamic carbon emission factor of available energy resource i at any time t, that is, the i-th second dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; η ijt It represents the first conversion efficiency of available energy resource i into terminal energy j at any time t, that is, the i-th first conversion efficiency corresponding to terminal energy j at any time t.

4. The method according to claim 3, characterized in that Obtaining M first conversion efficiencies corresponding to the terminal energy at any time t, including: The dynamic operation model is used to obtain M first conversion efficiencies corresponding to the terminal energy consumption at any time t. The dynamic operation model is used to characterize the energy efficiency change relationship caused by the load rate change during the operation of the energy equipment under non-rated conditions.

5. The method according to claim 1, characterized in that According to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product, a first carbon footprint corresponding to the target production link is determined, including: During the production time of the target link, substitute the N first consumption rates, N first dynamic carbon emission factors, the total production time of the target product, and the target product output corresponding to any time t into formula (2) for calculation to obtain the first carbon footprint corresponding to the target production link; The formula (2) includes: Among them, CF P,k represents the first carbon footprint corresponding to the target production link k; Q j,t represents the first consumption rate of terminal energy j at any time t; T represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; k represents the total production time of the target product; P represents the output of the target product.

6. A method for calculating product carbon footprint, characterized in that: include: For any target production link of the target batch of products in the K production links, determining the first carbon footprint corresponding to the target production link according to the method according to any one of claims 1 to 5, so as to obtain K first carbon footprints; Determine a first total carbon footprint according to the K first carbon footprints; For any raw material among the X raw materials of the target batch product, obtain the total raw material consumption and the second carbon footprint corresponding to the raw material to obtain X total raw material consumption and X second carbon footprints; Determine the second total carbon footprint of the raw materials of the target batch of products based on the X total raw material consumption, the X second carbon footprints and the target product output; A target total carbon footprint of a target batch of products is determined according to the first total carbon footprint and the second total carbon footprint.

7. The method according to claim 6, characterized in that According to the K first carbon footprints, the first total carbon footprint is determined, including: Substitute the K first carbon footprints into formula (3) to calculate and obtain the first total carbon footprint; The formula (3) includes: Among them, CF P Represents the first total carbon footprint; CF P,k Represents the first carbon footprint corresponding to the target production link k.

8. The method according to claim 6, characterized in that Get the total raw material consumption corresponding to the raw materials, including: Obtain the raw material consumption of the raw materials corresponding to any target production link in the K production links to obtain K raw material consumptions; The sum of the K raw material consumptions is determined as the total raw material consumption corresponding to the raw material.

9. The method according to any one of claims 6 to 8, characterized in that Based on X total raw material consumption, X second carbon footprints and target product output, determine the second total carbon footprint of raw materials of the target batch of products, including: Substitute X total raw material consumption, X second carbon footprints and target product output into formula (4) to calculate and obtain the second total carbon footprint of the raw materials of the target batch of products; The formula (4) includes: Among them, CF M A second total carbon footprint representing the raw materials of the target batch of products; represents the total raw material consumption of raw material i; represents the second carbon footprint of raw material i; P represents the target product output.

10. The method according to any one of claims 6 to 8, characterized in that According to the first total carbon footprint and the second total carbon footprint, the target total carbon footprint of the target batch of products is determined, including: Substitute the first total carbon footprint and the second total carbon footprint into formula (5) to calculate and obtain the target total carbon footprint of the target batch of products; The formula (5) includes: CF=CF M +CF P (5) Where CF represents the target total carbon footprint of the target batch of products; CF P Represents the first total carbon footprint; CF M Represents the second total carbon footprint.

11. A method for optimizing carbon footprint in production process, characterized in that: include: Determine a first carbon footprint corresponding to a target production link according to the production link carbon footprint calculation method according to any one of claims 1 to 5; When the first carbon footprint is greater than the carbon footprint baseline of the target production link, the flexible load and energy system corresponding to the target production link are optimized to obtain a first optimization result, and the first optimization result is used to reduce the first carbon footprint of the next production link of the target production link.

12. The method according to claim 11, characterized in that Before optimizing the flexible load and energy system corresponding to the target production link, the method further includes: obtaining a carbon footprint baseline of the target production link, The step of obtaining the carbon footprint baseline of the target production link includes: Obtain the production schedule of the target production link; According to the production scheduling plan, predict the renewable energy power generation and terminal energy consumption within the entire cycle included therein to obtain a prediction result; Based on the prediction result, the operation strategy of the energy system and the start and end time of each production link are optimized to obtain a second optimization result; The production link corresponding to the second optimization result is taken as the target production link, and the first carbon footprint of the production link corresponding to the second optimization result is determined according to the carbon footprint accounting method for the production link as described in any one of claims 1 to 5, and the first carbon footprint of the production link corresponding to the second optimization result is determined as the carbon footprint baseline of the target production link.

13. A carbon footprint accounting device for production links, characterized in that: include: The first acquisition module is used to obtain the target product output of the target batch of products, N first consumption rates corresponding to N terminal energy consumptions per unit time of the target batch of products in the target production link, N first dynamic carbon emission factors corresponding to N terminal energy consumptions, and the total production time of the target product in the target production link; The first determination module is connected to the first acquisition module, and is used to determine the first carbon footprint corresponding to the target production link according to the target product output, N first consumption rates, N first dynamic carbon emission factors, and the total production time of the target product.

14. The device according to claim 13, characterized in that The first acquisition module is specifically used for: For any terminal energy consumption among the N terminal energy consumptions, obtain the N first consumption rates corresponding to any time t between the start time and the end time of the target production link; And / or, a first acquisition module, specifically configured to: For any terminal energy consumption among the N terminal energy consumptions, obtain M second dynamic carbon emission factors, M first conversion efficiencies, and M first ratios corresponding to the terminal energy consumption at any time t, so as to obtain N*M second dynamic carbon emission factors, N*M first conversion efficiencies, and N*M first ratios; For any terminal energy consumption among the N terminal energy consumptions, the M first conversion efficiencies, the M first ratios and the M second dynamic carbon emission factors corresponding to the terminal energy consumption at any time t are substituted into formula (1) for calculation to obtain the first dynamic carbon emission factor corresponding to the terminal energy consumption, so as to obtain the N first dynamic carbon emission factors at any time t; The formula (1) includes: in, represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; α ijt represents the first proportion of terminal energy consumption j converted from available energy resource i at any time t, that is, the i-th first proportion of terminal energy consumption j corresponding to any time t; represents the dynamic carbon emission factor of available energy resource i at any time t, that is, the i-th second dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; η ijt represents the first conversion efficiency of available energy resource i into terminal energy j at any time t, that is, the i-th first conversion efficiency corresponding to terminal energy j at any time t; And / or, a first determining module is specifically configured to: During the production time of the target link, substitute the N first consumption rates, N first dynamic carbon emission factors, the total production time of the target product, and the target product output corresponding to any time t into formula (2) for calculation to obtain the first carbon footprint corresponding to the target production link; The formula (2) includes: Among them, CF P,k represents the first carbon footprint corresponding to the target production link k; Q j,t represents the first consumption rate of terminal energy j at any time t; T represents the first dynamic carbon emission factor corresponding to terminal energy consumption j at any time t; k represents the total production time of the target product; P represents the output of the target product.

15. A product carbon footprint accounting system, characterized in that: include: The production link carbon footprint accounting device as claimed in claim 13 or 14, is used to determine the first carbon footprint corresponding to any target production link in K production links for a target batch of products, so as to obtain K first carbon footprints, and determine the first total carbon footprint based on the K first carbon footprints; The product carbon footprint accounting device is connected to the production link carbon footprint accounting device, including: The second acquisition module is connected to the carbon footprint accounting device of the production link, and is used to obtain the total raw material consumption and the second carbon footprint corresponding to any raw material among the X raw materials of the target batch product, so as to obtain X total raw material consumption and X second carbon footprints; A second determination module, connected to the second acquisition module, for determining a first total carbon footprint according to the K first carbon footprints; A third determination module, connected to the second determination module, is used to determine the second total carbon footprint of the raw materials of the target batch product according to the X total raw material consumption, the X second carbon footprints and the target product output; The fourth determination module is used to determine a target total carbon footprint of a target batch of products according to the first total carbon footprint and the second total carbon footprint.

16. The system according to claim 15, characterized in that The second determining module is specifically used to: Substitute the K first carbon footprints into formula (3) to calculate and obtain the first total carbon footprint; The formula (3) includes: Among them, CF P Represents the first total carbon footprint; CF P,k represents the first carbon footprint corresponding to the target production link k; And / or, a second acquisition module, specifically configured to: Obtain the raw material consumption of the raw materials corresponding to any target production link in the K production links to obtain K raw material consumptions; The sum of the K raw material consumptions is determined as the total raw material consumption corresponding to the raw material. And / or, a third determination module, specifically configured to: Substitute X total raw material consumption, X second carbon footprints and target product output into formula (4) to calculate and obtain the second total carbon footprint of the raw materials of the target batch of products; The formula (4) includes: Among them, CF M A second total carbon footprint representing the raw materials of the target batch of products; represents the total raw material consumption of raw material i; represents the second carbon footprint of raw material i; P represents the target product output.

17. A production process carbon footprint optimization system, characterized in that: include: The production link carbon footprint accounting device as claimed in claim 13 or 14, used to determine the first carbon footprint corresponding to the target production link; The production link carbon footprint optimization device is connected to the production link carbon footprint accounting device, including: The optimization module is connected to the carbon footprint accounting device of the production link, and is used to optimize the flexible load and energy system corresponding to the target production link when the first carbon footprint is greater than the carbon footprint baseline of the target production link, and obtain a first optimization result. The first optimization result is used to reduce the first carbon footprint of the next production link of the target production link.

18. The system according to claim 17, characterized in that The system further includes a third acquisition module, wherein the third acquisition module includes: The acquisition submodule is used to obtain the production scheduling plan of the target production link; A prediction submodule, connected to the acquisition submodule, is used to predict the renewable energy power generation and terminal energy consumption within the entire cycle included in the production scheduling plan according to the production scheduling plan, and obtain a prediction result; An optimization submodule, connected to the prediction submodule, for optimizing the operation strategy of the energy system and the start and end time of each production link based on the prediction result to obtain a second optimization result; The production link carbon footprint accounting device is connected to the optimization submodule, and is also used to take the production link corresponding to the second optimization result as the target production link, determine the first carbon footprint of the production link corresponding to the second optimization result, and determine the first carbon footprint of the production link corresponding to the second optimization result as the carbon footprint baseline of the target production link.

Images