Metering method and system based on source network load multi-level electric carbon emission

Abstract

The invention relates to a method and a system for metering multi-level electric carbon emission based on source, network and load. The method comprises the following steps: acquiring operation data of a source layer, a load layer and a network layer of a generator of a power grid system; based on the operation data of the source layer and the network layer, calculating the corresponding electric carbon emissions of the generator in the source layer and the network layer; transmitting the electrical carbon emissions corresponding to the source layer and the network layer to the charge layer, and calculating the electrical carbon emissions of the charge layer; when the power grid is disturbed, the network layer updates the network layer power loss based on the charge layer electrical carbon emission and the network layer electrical carbon emission; calculating the topology switching cost based on the network layer power loss before and after updating, wherein the topology switching cost is used for representing the influence of the power grid topology structure change caused by the power grid disturbance on the electric carbon emission; and correcting the electrical carbon emission of the source layer, the network layer and the charge layer based on the topology switching cost to obtain the corrected electrical carbon emission of each layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon emission calculation, and mainly relates to a source-grid-load multi-level electric carbon emission calculation method and system. BACKGROUND

[0002] With the increasing seriousness of global climate change, carbon emission control has become an important issue. In this context, the power industry, as one of the main sources of carbon emissions, must take effective measures to monitor and optimize carbon emissions. Carbon emissions in the power system not only include carbon dioxide produced during power generation, but also include losses during power transmission and emissions during final power consumption. Therefore, accurately calculating and managing carbon emissions at each link in the power system is of great significance to the realization of carbon neutralization.

[0003] However, the prior art has at least the following technical problems: the prior art has poor adaptability to changes in the topology of the power grid, often treating the power system as a single whole, without being refined into the source, grid, and load three links, resulting in a lack of precision and real-time in carbon emission calculation, and unable to adjust carbon emission calculation in real time to respond to dynamic changes such as power grid load fluctuations and equipment failures, which can easily lead to lag or inaccuracy of carbon emission data; the bandwidth management of data transmission in the prior art is relatively static and cannot be dynamically adjusted according to real-time factors such as power system load and topology changes, which can cause data loss or delay and affect system efficiency. SUMMARY

[0004] In order to solve the above-mentioned problems existing in the prior art, the present application proposes a source-grid-load multi-level electric carbon emission calculation method and system.

[0005] The technical solution of the present application is as follows: On the one hand, the present application proposes a source-grid-load multi-level electric carbon emission calculation method, which comprises: obtaining the operation data of the source layer, the load layer and the grid layer of the power grid system generator; calculating the electric carbon emission of the generator corresponding to the source layer and the grid layer based on the operation data of the source layer and the grid layer; transmitting the electric carbon emission corresponding to the source layer and the grid layer to the load layer to calculate the electric carbon emission of the load layer; When the power grid is disturbed, the grid layer updates the grid layer power loss based on the electric carbon emission of the load layer and the electric carbon emission of the grid layer; calculates the topology switching cost based on the grid layer power loss before and after the update, which is used to represent the influence of the change of the power grid topology structure caused by the power grid disturbance on the electric carbon emission; correcting the electric carbon emission of the source layer, the grid layer and the load layer based on the topology switching cost to obtain the corrected electric carbon emission of each layer.

[0006] Preferably, the source layer's carbon emissions are calculated based on source layer operational data, and expressed by the formula: ; In the formula, express Carbon emissions from the source layer at any given time; Indicates the number of generator sets; Indicates the first Carbon emission factor per unit power of generator; express Time of the first Fuel consumption of each generator; express Time of the first The factor that reduces the power generation efficiency of a generator; express Time of the first The output power of each generator; The carbon emissions from the grid layer are calculated based on the grid layer operation data and expressed by the formula: ; In the formula, express Carbon emissions from the time-domain layer; Indicates the total number of power grid lines; Indicates the first The carbon emission factor corresponding to the unit power loss of a power grid line. express Time of the first Power loss of individual power grid lines; Indicates the first The transmission efficiency attenuation coefficient of each power grid line; The carbon emissions from the source and network layers are transferred to the charge layer, and the carbon emissions from the charge layer are calculated, expressed by the formula: ; In the formula, express Carbon emissions from the charge layer at any given time; Indicates the total load quantity; Indicates the first Carbon emission factors at each load point; express Time of the first Electricity demand at each load point. express Time of the first The load scheduling optimization coefficient for each load point.

[0007] Preferably, the network layer updates the network layer power loss based on the load layer electric carbon emission and the network layer electric carbon emission, and the specific steps are as follows: The load layer electric carbon emission is fed back to the network layer. The network layer updates the load layer electric carbon emission and the network layer electric carbon emission based on a preset adjustment coefficient to obtain the updated network layer power loss.

[0008] Preferably, the topology switching cost is calculated based on the network layer power loss before and after the update, and the specific steps are as follows: The difference between the network layer power loss at the current time and the network layer power loss at the previous time is calculated to obtain the power loss difference. The difference between the network layer power loss at the current time and the network layer power loss at the previous time is calculated to obtain the power loss difference of the current line.

[0009] Preferably, the source layer, the network layer and the load layer electric carbon emission are corrected based on the topology switching cost, and the specific steps are as follows: The sum of the electric carbon emission of the current layer and the topology switching cost is multiplied by the electric carbon correction coefficient corresponding to the current layer to obtain the corrected electric carbon emission of the current layer.

[0010] Preferably, the method further comprises adjusting the transmission bandwidth of the electric carbon emission transmission process based on the topology switching cost and the real-time transmission parameter, which is expressed by the formula as follows: ; In the formula, represents the adjusted transmission bandwidth; represents the basic data transmission bandwidth; represents the preset bandwidth adjustment factor; represents the delay of data transmission; represents the topology switching cost.

[0011] On the other hand, the present application also provides a metering system based on source network load multi-level electric carbon emission, which comprises: The data acquisition system is used to acquire the operation data of the source layer, the load layer and the network layer of the power grid system generator; The electric carbon emission calculation module is used to calculate the electric carbon emission of the generator corresponding to the source layer and the network layer based on the operation data of the source layer and the network layer; the electric carbon emission corresponding to the source layer and the network layer is transmitted to the load layer to calculate the load layer electric carbon emission; The correction module is used to update the network layer power loss based on the load layer electric carbon emission and the network layer electric carbon emission when the power grid is disturbed; the topology switching cost is calculated based on the network layer power loss before and after the update, which is used to represent the influence of the change of the power grid topology structure caused by the power grid disturbance on the electric carbon emission. The source layer, network layer and load layer electric carbon emission amounts are corrected based on a topology switching cost to obtain the corrected electric carbon emission amounts of each layer.

[0012] In another aspect, the present application also provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to the present application when executing the program.

[0013] In another aspect, the present application also provides a computer readable storage medium having a computer program stored thereon, wherein the program is executable on a processor to implement the method according to the present application.

[0014] The present application has the following advantages: 1. The present application provides a source network load multi-level electric carbon emission amount measurement method and system, which breaks down the electric carbon emission amount measurement into three independent and related levels according to the physical operation logic of the power system "power generation (source layer) - transmission (network layer) - consumption (load layer)", designs differentiated measurement methods for the core influencing factors of each level, solves the problem that the existing technology regards the power system as a "single whole", ignores the differences between the power generation - transmission - consumption links, and leads to fuzzy carbon emission measurement and inability to locate the responsibility of each link; improves the refinement degree of electric carbon emission amount measurement; and clarifies the emission proportion of each link of the source network load, thereby enhancing the traceability of carbon emission responsibility. 2. The present application provides a source network load multi-level electric carbon emission amount measurement method and system, which adjusts the carbon emission measurement and topology switching cost through the closed-loop logic of "load layer feedback - network layer update - cost calculation - full layer correction" when the power grid is disturbed due to load fluctuation, equipment failure, etc., to correct the carbon emission of the source network load in real time, solves the limitations of the existing technology that the adaptability to the change of the power grid topology structure is poor and the dynamic disturbance cannot be responded in real time, leading to lag or deviation of the carbon emission data; improves the response speed of the carbon emission measurement to the dynamic change of the power grid; and improves the real-time and accuracy of the electric carbon data in the disturbance scenario. 3. The present application provides a source network load multi-level electric carbon emission amount measurement method and system, which automatically increases the bandwidth to ensure data transmission when the topology switching cost is high (the disturbance is large) or the transmission delay is high; solves the problem of "static management" of data transmission bandwidth in the existing technology, which cannot match the dynamic load and topology change of the power grid, leading to data loss or delay; improves the stability and efficiency of electric carbon data transmission; improves the anti-interference ability in the data transmission process; and enhances the real-time and reliability of data synchronization between the source network load multi-level. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The specific flowchart of the embodiment of the present application is shown. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0017] It should be understood that the step numbers used herein are only for the convenience of description, and are not limited to the execution sequence of the steps.

[0018] It should be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0019] The terms "comprise" and "include" indicate the presence of described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0020] The term "and / or" means any combination of one or more of the associated listed terms and all possible combinations thereof, and includes these combinations.

[0021] Embodiment one: Referring to Figure 1 The present application provides a method for measuring multi-level electric carbon emissions based on source, load and grid, which comprises: S1, obtaining the operation data of the source layer, load layer and grid layer of the power grid system generator; In the power system, electric carbon emissions refer to the carbon dioxide emissions generated in each link of the entire power system (including generation, transmission and consumption processes); Electric carbon emissions include three levels of emissions: source layer (generation link), grid layer (power transmission link) and load layer (power consumption link); the carbon emissions of each level will affect the total carbon emissions of the entire power system, and the carbon emissions of each level are coupled with each other; The source layer electric carbon emissions refer to the carbon emissions generated in the generation process, which mainly depends on the operation data of the generator; the carbon emissions of the source layer are determined by the fuel consumption and power output of the generator, the transmission efficiency and loss of the grid layer are related to the grid, and in the process of power transmission through the transmission line, there will be a certain energy loss, which will be converted into additional carbon emissions; Carbon emissions from the load layer refer to carbon emissions during electricity consumption, which are mainly related to changes in load demand and its impact on carbon emissions; carbon emissions from the load layer are mainly related to changes in load demand and the carbon emission impacts of the grid layer and the source layer. Grid-layer carbon emissions refer to carbon emissions during the power transmission process, mainly from power losses during transmission. S2. Calculate the corresponding carbon emissions of the generator at the source layer and grid layer based on the operating data of the source layer and grid layer. S21. The carbon emission calculation of the source layer considers the carbon emissions of each generator under different load conditions, which mainly depend on fuel consumption and power output. The fuel consumption of the generator is linearly related to its power output, and the efficiency of each generator decreases with the change of load. In order to accurately calculate carbon emissions, it is necessary to combine the dynamic changes of fuel consumption and power output of each generator, and consider the impact of its efficiency decay on carbon emissions. The carbon emissions from source layer electricity are calculated based on source layer operational data and expressed by the formula: ; In the formula, express Carbon emissions from the source layer at any given time; Indicates the number of generator sets; Indicates the first Carbon emission factor per unit power of generator; express Time of the first Fuel consumption of each generator; express Time of the first The factor that reduces the power generation efficiency of a generator; express Time of the first The output power of the generator; S22. The main source of carbon emissions from the power grid is the loss that occurs during power transmission. The power transmission loss is usually proportional to the additional carbon emissions. In order to accurately calculate the carbon emissions of the power grid, the transmission loss of each line and the contribution of these losses to the overall carbon emissions must be considered. Specifically, the carbon emissions of each line in the power grid are related to the power loss of the current line. The amount of power loss changes with the change of the power grid operating load, and the power loss of each line will increase with the change of current. The carbon emissions from the grid layer are calculated based on the grid layer operation data and expressed by the formula: ; In the formula, express Carbon emissions from the time-domain layer; Indicates the total number of power grid lines; Indicates the first The carbon emission factor corresponding to the unit power loss of a power grid line. express Time of the first Power loss of individual power grid lines; Indicates the first The transmission efficiency attenuation coefficient of each power grid line; S23. Load layer carbon emissions are the result of the combined effects of load demand and grid losses. In the power system, changes in load demand not only directly affect the operating status of the grid, but also reflect in the carbon emissions of the system through grid losses. The power loss of the grid affects the dispatching of loads, and thus affects the changes in carbon emissions. Load layer carbon emissions not only depend on the power demand of each load node, but are also affected by grid layer carbon emissions and source layer carbon emissions. The carbon emissions from the source and network layers are transferred to the charge layer, and the carbon emissions from the charge layer are calculated, expressed by the formula: ; In the formula, express Carbon emissions from the charge layer at any given time; Indicates the total load quantity; Indicates the first Carbon emission factors at each load point; express Time of the first Electricity demand at each load point. Indicates the first Load scheduling optimization coefficients for each load point; S3. When the power grid is disturbed, the grid layer updates the grid layer power loss based on the load layer's carbon emissions and the grid layer's carbon emissions. After the load layer carbon emissions calculation is completed and fed back to the grid layer, the grid layer's power loss must be adjusted according to the load layer's carbon emissions to ensure that the carbon emissions lost during grid transmission are correctly reflected. The grid layer's power loss is closely related to the grid's load demand and carbon emission data. Therefore, an increase in load layer carbon emissions will directly affect the grid layer's loss level. Each change in load demand may cause fluctuations in the grid load, thereby changing the power loss of the grid lines. The grid layer's power loss needs to be updated according to the load layer's carbon emissions and the grid layer's carbon emissions at each time step. The carbon emissions from the charge layer are fed back to the grid layer; The grid layer updates and iterates the load cell carbon emissions and the grid layer carbon emissions in each time step based on a preset adjustment coefficient to obtain the updated grid layer power loss, expressed by the formula: ; In the formula, express The layer power loss at any given time, i.e., the updated layer power loss; express The power loss of the network layer at any given time, i.e., the power loss of the network layer before the update; This represents the load impact coefficient, reflecting the impact of load layer carbon emissions on power grid losses; This represents the loss adjustment coefficient, used to indicate the interaction between grid layer losses and source layer power generation; S4. The topology of a power system changes dynamically due to factors such as load variations and equipment failures, directly affecting power transmission and losses in the grid, and thus further impacting carbon emission calculations. Therefore, the impact of grid topology switching on carbon emissions must be considered in real-time simulations of electricity emissions. When a topology switch occurs, it is necessary to calculate the loss changes of each line in order to assess the cost of the topology switch; after the topology switch, the power loss of the power grid changes, which in turn affects the carbon emissions of the power system. The topology switching cost is calculated based on the power loss of the grid layer before and after the update, which is used to represent the impact of grid disturbances on the change of grid topology on carbon emissions. Calculate the difference between the current layer power loss and the previous layer power loss to obtain the power loss difference. Calculate the difference between the current network layer power loss and the previous network layer power loss to obtain the current line power loss difference, expressed by the formula: ; In the formula, Indicates the cost of topology switching; Indicates the first Topology switching cost coefficient for each power grid line; S5. Correct the carbon emissions of the source layer, network layer, and charge layer based on the topology switching cost; Multiply the sum of the current layer's carbon emissions and topology switching costs by the carbon emissions correction coefficient corresponding to the current layer to obtain the corrected carbon emissions of the current layer. The source-layer corrected carbon emissions from electricity are expressed by the formula: ; In the formula, express Time-source layer corrected carbon emissions from electricity; Indicates the source layer correction factor; The carbon emissions from electricity, after network correction, are expressed by the formula: ; In the formula, express the power carbon emission amount of the moment after the load layer is corrected, which is expressed by a formula as follows: the power carbon emission amount of the moment after the load layer is corrected, which is expressed by a formula as follows: the power carbon emission amount of the moment after the load layer is corrected, which is expressed by a formula as follows: the power carbon emission amount of the moment after the load layer is corrected, which is expressed by a formula as follows: the power carbon emission amount of the moment after the load layer is corrected, which is expressed by a formula as follows: S6, in order to ensure that the power carbon data between each level can be transmitted and synchronized in real time and accurately, the bandwidth is adjusted in real time based on the load demand and the data transmission delay, so as to ensure that the power carbon data can be efficiently transmitted between different levels and regions; the transmission of the power carbon data needs to ensure that the data of each level can be updated synchronously after real-time calculation, and the carbon emission data flow between each level in the power grid is dynamically changed, which depends on the power grid load, the change of the topology structure, the equipment failure and other factors; The method further includes adjusting the transmission bandwidth of the power carbon emission amount transmission process based on the topology switching cost and the real-time transmission parameter, which is expressed by a formula as follows:

[0022] Embodiment two: The embodiment provides a power carbon emission amount metering system based on a source network load multi-level, which comprises: The data acquisition system is used for acquiring the operation data of the source layer, the load layer and the network layer of the power grid system generator; The power carbon emission amount calculation module is used for calculating the power carbon emission amount of the generator corresponding to the source layer and the network layer based on the operation data of the source layer and the network layer; and transmitting the power carbon emission amount corresponding to the source layer and the network layer to the load layer to calculate the load layer power carbon emission amount; The correction module is used for updating the network layer power loss based on the load layer power carbon emission amount and the network layer power carbon emission amount when the power grid is disturbed; and calculating the topology switching cost based on the network layer power loss before and after the update, which is used for representing the influence of the change of the power grid topology structure caused by the power grid disturbance on the power carbon emission amount; The source layer, the network layer and the load layer power carbon emission amount are corrected based on the topology switching cost, and the power carbon emission amount of each layer after the correction is obtained.

[0023] Embodiment three: ​​​​​​​​​​​The embodiment provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements a multi-level electric carbon emission measurement method based on source network load when executing the program.

[0024] Embodiment four: The embodiment provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement a multi-level electric carbon emission measurement method based on source network load.

[0025] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the cases of A alone, A and B together, and B alone. Wherein A and B can be singular or plural. The character " / " generally represents that the associated objects before and after it are in an "or" relationship. "At least one of the following" and the like means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c can be single or multiple.

[0026] Those skilled in the art can realize that the units and algorithm steps described in the embodiments disclosed in the present application can be realized by electronic hardware, computer software and combination of electronic hardware and computer software. Whether the functions are realized by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0027] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-mentioned system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0028] In several embodiments provided in the present application, any function, if realized in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the parts of the technical solutions that essentially contribute to the prior art or the parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0029] The above description is only some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A method for measuring multi-level electric carbon emissions based on source network load, characterized in that, The method comprises: acquiring operation data of a source layer, a load layer and a network layer of a power grid system generator; calculating the corresponding electric carbon emissions of the source layer and the network layer based on the operation data of the source layer and the network layer, and transmitting the corresponding electric carbon emissions of the source layer and the network layer to the load layer to calculate the electric carbon emissions of the load layer; when a disturbance occurs in the power grid, the network layer updates the power loss of the network layer based on the electric carbon emissions of the load layer and the electric carbon emissions of the network layer, and calculates a topology switching cost based on the power loss of the network layer before and after the update, which represents the influence of the change of the topology structure of the power grid caused by the disturbance on the electric carbon emissions; based on the topology switching cost, the electric carbon emissions of the source layer, the network layer and the load layer are corrected to obtain the corrected electric carbon emissions of each layer.

2. The method of claim 1, wherein the method is based on a multi-level source network load carbon emission. The source layer electric carbon emissions are calculated based on the operation data of the source layer, which is expressed by the following formula: ； In the formula, represents the carbon emission amount of the power generation unit at the time t; represents the number of the power generator units; represents the carbon emission factor of the unit power of the power generator unit; represents the carbon emission factor of the unit power of the power generator unit; represents the fuel consumption amount of the power generator unit at the time t; represents the fuel consumption amount of the power generator unit at the time t; represents the fuel consumption amount of the power generator unit at the time t; represents the power generation efficiency attenuation factor of the power generator unit at the time t; represents the power generation efficiency attenuation factor of the power generator unit at the time t; represents the power generation efficiency attenuation factor of the power generator unit at the time t; represents the output power of the power generator unit at the time t; represents the output power of the power generator unit at the time t; represents the output power of the power generator unit at the time t; The network layer electric carbon emissions are calculated based on the operation data of the network layer, which is expressed by the following formula: ； In the formula, represents the carbon emission of the power grid at the moment; represents the total number of power grid lines; represents the carbon emission factor corresponding to the unit power loss of the th power grid line; represents the power loss of the th power grid line at the moment; represents the transmission efficiency decay coefficient of the th power grid line; The corresponding electric carbon emissions of the source layer and the network layer are transmitted to the load layer to calculate the electric carbon emissions of the load layer, which is expressed by the following formula: ； In the formula, represents the carbon emission amount of the load at the moment; represents the total number of loads; represents the carbon emission factor of the load point; represents the power demand of the load point at the moment; represents the load scheduling optimization coefficient of the load point at the moment; the load scheduling optimization coefficient of the load point at the moment;​ 3. The method of claim 1, wherein the method is based on a multi-level source network load carbon emission. The network layer updates the power loss of the network layer based on the electric carbon emissions of the load layer and the electric carbon emissions of the network layer, and the specific steps are as follows: The electric carbon emissions of the load layer are fed back to the network layer; The network layer updates the electric carbon emissions of the load layer and the electric carbon emissions of the network layer in each time step based on a preset adjustment coefficient to obtain the updated power loss of the network layer.

4. The method of claim 1, wherein the method is based on a multi-level source network load carbon emission. The topology switching cost is calculated based on the power loss of the network layer before and after the update, and the specific steps are as follows: The difference between the power loss of the network layer at the current time and the power loss of the network layer at the previous time is calculated to obtain the power loss difference; The difference between the power loss of the network layer at the current time and the power loss of the network layer at the previous time is calculated to obtain the power loss difference of the current line.

5. The method of claim 1, wherein the method is based on a multi-level source network load carbon emission. Based on the topology switching cost, the electric carbon emissions of the source layer, the network layer and the load layer are corrected, and the specific steps are as follows: The electric carbon emissions of the current layer are added to the sum of the topology switching cost, and the sum is multiplied by the electric carbon correction coefficient corresponding to the current layer to obtain the corrected electric carbon emissions of the current layer.

6. The method of claim 1, wherein the method is based on a multi-level source network load carbon emission. The method further comprises adjusting the transmission bandwidth of the electric carbon emissions transmission process based on the topology switching cost and real-time transmission parameters, which is expressed by the following formula: ； In the formula, represents the adjusted transmission bandwidth; represents the basic data transmission bandwidth; represents the preset bandwidth adjustment factor; represents the delay of data transmission; represents the topology switching cost.

7. A metering system based on source-netload multi-level electric carbon emissions, characterized in that, The system comprises: The data acquisition system is used to acquire the operation data of the source layer, the load layer and the network layer of the power grid system generator; The electric carbon emissions calculation module is used to calculate the corresponding electric carbon emissions of the source layer and the network layer based on the operation data of the source layer and the network layer, and to transmit the corresponding electric carbon emissions of the source layer and the network layer to the load layer to calculate the electric carbon emissions of the load layer; The correction module is used to update the power loss of the network layer based on the electric carbon emissions of the load layer and the electric carbon emissions of the network layer when a disturbance occurs in the power grid, and to calculate a topology switching cost based on the power loss of the network layer before and after the update, which represents the influence of the change of the topology structure of the power grid caused by the disturbance on the electric carbon emissions; Based on the topology switching cost, the electric carbon emissions of the source layer, the network layer and the load layer are corrected to obtain the corrected electric carbon emissions of each layer.

8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the program to implement the method of any one of claims 1 to 6.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the method of any one of claims 1 to 6.

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