Method and device for tracing the source of electricity equivalent carbon emissions

Abstract

The present application discloses a method, device, electronic device and storage medium for tracing the flow of equivalent carbon emissions from electricity consumption, wherein the method includes: obtaining real-time flow data of the power grid, establishing a power grid flow matrix, and calculating the flow process of equivalent carbon emissions of the power system in the power grid based on the node average distribution rule, and finally establishing a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix. These matrices can directly characterize which power plants in the power grid the indirect carbon emissions of the user's electricity consumption come from and the proportion of each power plant. By using this method to measure the carbon emissions of user electricity consumption, the relationship between the user's carbon emissions and the carbon emissions of a specific power plant can be traced in real time, thereby improving the carbon measurement efficiency of the power grid, providing decision-making reference and support for power grid operators, and providing a reference basis for users to reduce carbon emissions. In this way, problems such as accurate measurement of equivalent carbon emissions of the power system are solved.

Description

Technical Field

[0001] The present application relates to the technical field of power system operation, and in particular to a method, device, electronic device and storage medium for tracing the source of electricity equivalent carbon emissions. Background Art

[0002] With the continuous depletion of fossil energy and the growing global focus on environmental pollution and climate change, the proportion of new, low-carbon, clean renewable energy sources (such as wind power and photovoltaics) in the power grid is increasing. This has led to a diversification of the power generation structure within the power grid, from a power structure dominated by thermal power to one that integrates thermal power, photovoltaics, wind power, hydropower, and other sources. Furthermore, the output of renewable energy in the power system exhibits intraday fluctuations, which significantly alters the power system's operation. Consumer electricity consumption and daily usage patterns significantly alter the power system's generation costs and thermal power generation schedules, further impacting the system's overall carbon emissions. Consequently, with the large-scale integration of renewable energy, the power system's carbon emissions are showing regional and temporal variations.

[0003] At the same time, under my country's "carbon peak and carbon neutrality" goals, the national carbon market is in the pilot and rollout phase. Currently, carbon allowances are only distributed to power generation companies. However, given my country's relatively fixed electricity prices and an underdeveloped electricity market, the additional costs associated with carbon emissions from power generation cannot be properly transferred to power users. Therefore, attaching carbon emission allowances to electricity and transferring them to major energy users will become the mainstream approach in the future. Major companies hope to achieve reasonable carbon emission measurement solutions to reduce their own equivalent carbon emissions.

[0004] Currently, the primary method for allocating carbon emissions in the power system is based on the average carbon emission factor. This method distributes carbon emissions from power generation companies across the entire power system evenly across users. This method has the advantage of facilitating measurement and eliminating the need for extensive data. However, it also has the disadvantage of failing to reflect actual power flows, imposing additional costs on companies that rely more on "green electricity." This also hinders fair measurement, especially in a power system with an increasingly diverse power generation mix.

[0005] To sum up, in the process of carbon emission measurement in the power system, there is a need for a carbon emission measurement scheme that can reflect the electricity traceability effect, clarify the source of users' electricity consumption, and thus accurately measure the carbon emissions generated by users' electricity consumption behavior. Summary of the Invention

[0006] The present application provides a method, device, electronic device and storage medium for tracing the flow of electricity equivalent carbon emissions to solve problems such as accurate measurement of equivalent carbon emissions in power systems.

[0007] The first aspect of the present application provides a method for tracing the source of electricity equivalent carbon emissions, including the following steps: acquiring real-time power flow data of the power grid, and establishing a power grid power flow matrix based on the real-time power flow data; calculating the flow process of the equivalent carbon emissions of the power system in the power grid based on the node average distribution rule, and establishing a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix; and determining the source information of the carbon emissions of electricity users based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix, wherein the source information includes one or more source power plants in the power grid and the proportion of each source power plant.

[0008] Optionally, in one embodiment of the present application, establishing a power grid flow matrix based on the real-time flow data includes: calculating a fixed parameter matrix of the power system, wherein the fixed parameter matrix includes a unit-node association distribution matrix, a load-node association distribution matrix, and a node-flow association distribution matrix; calculating an operating parameter matrix of the power system, wherein the operating parameter matrix includes a node-flow association distribution matrix, a unit-node flow injection matrix, a load-node flow matrix, and a node flow injection total amount vector.

[0009] Optionally, in one embodiment of the present application, the establishment of the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix includes: computing a node tracking matrix, a branch tracking matrix, a load tracking matrix and a unit tracking matrix.

[0010] Optionally, in one embodiment of the present application, the source information of carbon emissions of electricity users is determined based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix, including: the total power consumption of any electricity user at any node i is P i When , the calculation formula of the electricity consumption from unit j in the total electricity consumption is:

[0011] P ji =T Nji ×P i ,

[0012] In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is The equivalent carbon emissions of electricity consumption of the electricity users The calculation formula is:

[0013]

[0014] Among them, the portion of the electricity equivalent carbon emissions of the electricity user coming from the unit j is:

[0015]

[0016] Optionally, in one embodiment of the present application, the determining of the source information of carbon emissions of electricity users based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix further includes: when the flow on line i is P i When , the amount of electricity from the unit j in the power flow is:

[0017] P l ji =T Lji ×P i ,

[0018] In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is Equivalent carbon emissions of electricity consumption on the power flow of the line for:

[0019]

[0020] The part of the power flow on the line coming from the unit j is calculated as:

[0021]

[0022] The second aspect of the present application provides a power flow tracing device for equivalent carbon emissions of electricity consumption, including: an acquisition module for acquiring real-time power flow data of the power grid and establishing a power grid power flow matrix based on the real-time power flow data; a construction module for calculating the flow process of equivalent carbon emissions of the power system in the power grid based on the node average distribution rule, and establishing a user-power plant carbon tracing matrix and a line-power plant carbon tracing matrix; and a tracing module for determining the source information of carbon emissions of electricity users based on the user-power plant carbon tracing matrix and the line-power plant carbon tracing matrix, wherein the source information includes one or more source power plants in the power grid and the proportion of each source power plant.

[0023] Optionally, in one embodiment of the present application, the acquisition module includes: a first calculation unit, used to calculate the fixed parameter matrix of the power system, wherein the fixed parameter matrix includes a unit-node association distribution matrix, a load-node association distribution matrix and a node-flow association distribution matrix; a second calculation unit, used to calculate the operating parameter matrix of the power system, wherein the operating parameter matrix includes a node-flow association distribution matrix, a unit-node flow injection matrix, a load-node flow matrix and a node flow injection total amount vector.

[0024] Optionally, in one embodiment of the present application, the construction module is specifically used to calculate the node tracking matrix, the branch tracking matrix, the load tracking matrix and the unit tracking matrix.

[0025] Optionally, in one embodiment of the present application, the traceability module is specifically configured to calculate the total power consumption of any power user at any node i as P i When , the calculation formula of the electricity consumption from unit j in the total electricity consumption is:

[0026] P ji =T Nji ×P i ,

[0027] In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is The equivalent carbon emissions of electricity consumption of the electricity users The calculation formula is:

[0028]

[0029] Among them, the portion of the electricity equivalent carbon emissions of the electricity user coming from the unit j is:

[0030]

[0031] Optionally, in one embodiment of the present application, the traceability module further includes:

[0032] The power flow on line i is P i When , the amount of electricity from the unit j in the power flow is:

[0033] P l ji =T Lji ×P i ,

[0034] In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is Equivalent carbon emissions of electricity consumption on the power flow of the line for:

[0035]

[0036] The part of the power flow on the line coming from the unit j is calculated as:

[0037]

[0038] The third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the method for tracing the source of electricity equivalent carbon emissions as described in the above embodiment.

[0039] The fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the method for tracing the source of electricity equivalent carbon emissions as described in any one of claims 1-5.

[0040] Therefore, this application has at least the following beneficial effects:

[0041] By acquiring real-time power flow data from the power grid and establishing a power flow matrix, the flow of equivalent carbon emissions from the power system within the grid is calculated based on the node average distribution rule. Ultimately, a user-to-power plant carbon tracking matrix and a line-to-power plant carbon tracking matrix are established. These matrices directly characterize which power plants within the grid contribute to the indirect carbon emissions from a user's electricity consumption, as well as the proportion of each plant. Using this method to measure carbon emissions from user electricity consumption, the relationship between user carbon emissions and those of specific power plants can be traced in real time, thereby improving the efficiency of carbon measurement in the power grid, providing decision-making support for grid operators, and offering a reference basis for users to reduce their carbon emissions. This solves the problem of accurately measuring equivalent carbon emissions from the power system.

[0042] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0044] Figure 1 A flow chart of a method for tracing the source of electricity equivalent carbon emissions according to an embodiment of the present application;

[0045] Figure 2 This is an example diagram of a device for tracing the source of electricity equivalent carbon emissions according to an embodiment of the present application;

[0046] Figure 3 A schematic diagram of the structure of an electronic device provided in an application embodiment.

[0047] Explanation of the reference numerals: acquisition module-100, construction module-200, tracing module-300, memory-401, processor-402, communication interface-403. DETAILED DESCRIPTION

[0048] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0049] The following describes the power flow tracing method, device, electronic device and storage medium of the electricity equivalent carbon emissions of the embodiment of the present application with reference to the accompanying drawings. In response to the problems mentioned in the above background technology, the present application provides a power flow tracing method of the electricity equivalent carbon emissions. In this method, by acquiring the real-time power flow data of the power grid, a power grid power flow matrix is ​​established, and based on the node average distribution rule, the flow process of the equivalent carbon emissions of the power system in the power grid is calculated, and finally a user-power plant carbon tracing matrix and a line-power plant carbon tracing matrix are established. These matrices can directly characterize which power plants in the power grid the indirect carbon emissions of the user's electricity consumption come from and the proportion of each power plant. By using this method to measure the carbon emissions of the user's electricity consumption, the relationship between the user's carbon emissions and the carbon emissions of a specific power plant can be traced in real time, thereby improving the carbon measurement efficiency of the power grid, providing decision-making reference and support for power grid operators, and providing a reference basis for users to reduce carbon emissions. In this way, the problem of accurate measurement of equivalent carbon emissions of the power system is solved.

[0050] Specifically, Figure 1 This is a flow chart of a method for tracing the source of electricity equivalent carbon emissions provided in an embodiment of the present application.

[0051] like Figure 1 As shown, the power flow tracing method for electricity equivalent carbon emissions includes the following steps:

[0052] In step S101 , real-time power flow data of the power grid is acquired, and a power flow matrix of the power grid is established according to the real-time power flow data.

[0053] It is important to note that before conducting power flow tracing of electricity-equivalent carbon emissions, this application requires obtaining the network structure and power flow data of the power system. Based on the power flow data obtained from the grid, the corresponding relationship between the user's equivalent carbon emissions and the actual carbon emissions of the grid power plants is calculated.

[0054] First, define the basic variables. For example, in an isolated power grid, there are B lines, N nodes, K power plants injecting power into the nodes, and M power users drawing power from the grid. Based on the power flow data provided by the power system operator, calculate and save a series of auxiliary matrices, including the system fixed parameter matrix, the power system operating parameter matrix, and the carbon tracking matrix.

[0055] Specifically, in the embodiment of the present application, the above-mentioned system fixed parameter matrix includes a unit-node correlation distribution matrix, a load-node correlation distribution matrix, and a node-flow correlation distribution matrix. Specifically, they are as follows:

[0056] (1) Computer group-node association distribution matrix:

[0057] The unit-node association distribution matrix is ​​a K×N dimensional matrix, denoted by J. The value of each position in the unit-node association distribution matrix is ​​calculated in the following way:

[0058] If the kth unit is located at the i-th node of the system (k=1,2,…,K; i=1,2,…,N), then J ki =1, otherwise J ki =0.

[0059] (2) Calculate the load-node correlation distribution matrix:

[0060] The load-node correlation distribution matrix is ​​an M×N dimensional matrix, denoted by L. The value of each position in the load-node correlation distribution matrix is ​​calculated as follows:

[0061] If there is an mth load in the i-th node of the system (i=1,2,…,N; m=1,2,…,M), then L mi =1, otherwise L mi =0.

[0062] (3) Compute the node-flow correlation distribution matrix:

[0063] The node-flow correlation distribution matrix is ​​an N×B dimensional matrix, denoted by symbol A. The value of each position in the load-flow correlation distribution matrix is ​​calculated as follows:

[0064] If the starting point of the power flow on the b-th branch of the system is the n-th node (b=1,2,…,B; n=1,2,…,N), then A bn =1, otherwise A bn =0.

[0065] In addition, the operating parameter matrix of the power system needs to be calculated, including the node-flow correlation distribution matrix, the unit-node flow injection matrix, the load-node flow matrix, and the node flow injection total amount vector. The details are as follows:

[0066] (1) Calculate the node-node unidirectional power flow matrix

[0067] The branch power flow distribution matrix is ​​an N×N dimensional matrix, symbolized by P n+ The value of each position in the branch power flow distribution matrix is ​​calculated as follows:

[0068] If there is a branch connecting node i and node j (i, j = 1, 2, ..., N), and the positive active power flow flowing into node j through this branch is p, then P ij n+ =p,P ji n+ =0; if the active power flow p flowing through the branch is a reverse flow, then Pij n+ =0,P ji n+ =pIn other cases P ij n+ =P ji n+ = 0. For all diagonal elements, P ii n+ =0.

[0069] (2) Computer group-node power injection matrix

[0070] The unit injection distribution matrix is ​​a K×N dimensional matrix, symbolized by P gi The group-node power flow injection matrix is ​​calculated as follows:

[0071] According to the output sequence vector of all power plants in the system: Unit-node association distribution matrix

[0072]

[0073] (3) Calculate the load-node flow matrix

[0074] The load-node power flow matrix is ​​an M×N dimensional matrix, and is represented by P lo The load-node flow matrix is ​​calculated as follows:

[0075] According to the vector of all load sequences in the power system Load-node correlation distribution matrix

[0076]

[0077] (4) Calculate the total amount of node flow injection vector

[0078] The total amount of node flow injection vector is an N-dimensional vector, symbolized by P ni The total amount of node flow injection represents the sum of all flows injected into the node, reflecting the total amount of flow flowing through the node. The elements of the node active flux matrix are calculated in the following way:

[0079] For node i, the total amount of power injection consists of two parts. One is the power injection amount P from other nodes. nib i The other type is the injection of P from the power plant in the node itself. nig i The total amount of tidal injection is the sum of the two types of injection:

[0080] P ni i =P nibi +P nig i

[0081] Calculate the flow injection from other nodes:

[0082]

[0083] Calculate the injection amount from the node's own existing power plant:

[0084]

[0085] In step S102, based on the node average distribution rule, the flow process of equivalent carbon emissions of the power system in the power grid is calculated, and a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix are established.

[0086] In addition to obtaining the above-mentioned system fixed parameter matrix and the operating parameter matrix of the power system, the embodiments of the present application also calculate the carbon tracking matrix to obtain the matrix information for auxiliary calculations required for the traceability process, and establish a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix.

[0087] Optionally, in one embodiment of the present application, a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix are established, including: calculating a node tracking matrix, a branch tracking matrix, a load tracking matrix, and a unit tracking matrix. The specific calculation process is as follows:

[0088] (1) Calculate the node tracking matrix

[0089] The node tracking matrix is ​​an N×K dimensional diagonal matrix, denoted by T N There are two ways to calculate the tracking vector of a node.

[0090] Calculation method 1: Iterative solution based on known tracking vector

[0091] According to the definition of the node tracking matrix, for node i in the system, the calculation method of its tracking vector is

[0092]

[0093] Branch tracking matrix T Bs It can be replaced by the branch start node tracking matrix and rewritten into the following matrix form

[0094]

[0095] Based on the above formula, the solvable nodes in the existing nodes are searched in sequence until the tracking matrix of all nodes is calculated.

[0096] Calculation method 2: direct solution method

[0097] The node tracking matrix is ​​calculated as follows:

[0098]

[0099] Based on the node tracking matrix, the line tracking matrix and the load tracking matrix are calculated. The process is as follows:

[0100] (2) Calculate the branch tracking matrix

[0101] The branch tracking matrix is ​​a B×K dimensional diagonal matrix, denoted by T B This matrix can describe the proportion of power flow on the line corresponding to different generator sets. The calculation method of the line tracking matrix is:

[0102] T B =A T ·T N

[0103] (3) Calculate the load tracking matrix

[0104] The load tracking matrix is ​​an M×K dimensional diagonal matrix, denoted by T L This matrix can describe the load behavior and the proportion of different generator sets. The load tracking matrix is ​​calculated as follows:

[0105] T L =L·T N

[0106] (4) Computer Group Tracking Matrix

[0107] The unit tracking matrix is ​​a K×K dimensional diagonal matrix, symbolized by T G Indicates. T G is the unit diagonal matrix.

[0108] Therefore, the matrix information of auxiliary calculations required for the traceability process is obtained, and the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix are established.

[0109] Based on the node average distribution rule, the flow process of equivalent carbon emissions of the power system in the power grid is calculated, and finally the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix are established. These matrices can directly represent which power plants in the power grid the indirect carbon emissions of user electricity consumption come from and the proportion of each power plant.

[0110] In step S103, based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix, the source information of the electricity user's carbon emissions is determined, wherein the source information includes one or more source power plants in the power grid and the proportion of each source power plant.

[0111] It's easy to understand that, based on the node average allocation rule and obtaining the matrix information necessary for auxiliary calculations during the tracing process, the flow of equivalent carbon emissions within the power system is calculated. This allows for the establishment of user-to-power plant carbon tracing matrices and line-to-power plant carbon tracing matrices. These matrices directly identify the power plants within the grid that contribute to indirect carbon emissions from user electricity consumption, as well as the proportion of each plant. Furthermore, to measure user carbon emissions and trace their relationship to specific power plants in real time, the following describes the tracing method for system electricity.

[0112] Specifically, in the embodiment of the present application, the principle of tracing the source of system power is as follows:

[0113] If the total power consumption of a power user at node i is P i , then the amount of electricity from unit j in the total electricity consumption is calculated as:

[0114] P ji =T Nji ×P i

[0115] In the process of carbon emission measurement, the unit electricity carbon emission intensity is set as follows: The user's equivalent electricity carbon emissions Calculated as:

[0116]

[0117] Among them, the part of the user's electricity equivalent carbon emissions coming from unit j (that is, the part of the equivalent carbon emissions actually emitted at unit j) is calculated as:

[0118]

[0119] Similarly, if the power flow on line i is P i , then the power from unit j in the power flow is calculated as:

[0120] P l ji =T Lji ×P i

[0121] In the process of carbon emission measurement, the unit electricity carbon emission intensity is set as follows: The equivalent carbon emissions of electricity consumption on the line are Calculated as:

[0122]

[0123] Among them, the part of the power flow on the line coming from unit j (that is, the part of the equivalent carbon emissions actually emitted at unit j) is calculated as:

[0124]

[0125] Therefore, based on the power flow data of the power grid, the correspondence between the user's equivalent carbon emissions and the actual carbon emissions of the power plant in the power grid is calculated, and a matrix is ​​formed to measure the equivalent carbon emissions of the power system. The above method reflects the carbon emission measurement scheme with the electricity traceability effect, clarifies the source of the user's electricity consumption, and thus accurately measures the carbon emissions generated by the user's electricity consumption behavior, providing a reference basis for users to reduce carbon emissions.

[0126] According to the power flow tracing of equivalent carbon emissions from electricity consumption proposed in the embodiment of the present application, by acquiring the real-time power flow data of the power grid, a power grid power flow matrix is ​​established, and based on the node average distribution rule, the flow process of equivalent carbon emissions of the power system in the power grid is calculated, and finally a user-power plant carbon tracing matrix and a line-power plant carbon tracing matrix are established. These matrices can directly characterize which power plants in the power grid the indirect carbon emissions of the user's electricity consumption come from and the proportion of each power plant. By using this method to measure the carbon emissions of user electricity consumption, the relationship between the user's carbon emissions and the carbon emissions of a specific power plant can be traced in real time, thereby improving the carbon measurement efficiency of the power grid, providing decision-making reference and support for power grid operators, and providing a reference basis for users to reduce carbon emissions.

[0127] Next, a device for tracking the electricity equivalent carbon emissions according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0128] Figure 2 It is a block diagram of a device for tracing the source of electricity equivalent carbon emissions according to an embodiment of the present application.

[0129] like Figure 2 As shown, the power consumption equivalent carbon emission flow tracing device 10 includes: an acquisition module 100, a construction module 200 and a tracing module 300.

[0130] Among them, the acquisition module 100 is used for the real-time flow data of the power grid and to establish the power grid flow matrix based on the real-time flow data; the construction module 200 is used to calculate the flow process of the equivalent carbon emissions of the power system in the power grid based on the node average distribution rule, and to establish the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix; and the tracing module 300 is used to determine the source information of the carbon emissions of the electricity users based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix, wherein the source information includes one or more source power plants in the power grid and the proportion of each source power plant.

[0131] Optionally, in one embodiment of the present application, the acquisition module 100 includes: a first calculation unit, used to calculate the fixed parameter matrix of the power system, wherein the fixed parameter matrix includes a unit-node association distribution matrix, a load-node association distribution matrix and a node-flow association distribution matrix; a second calculation unit, used to calculate the operating parameter matrix of the power system, wherein the operating parameter matrix includes a node-flow association distribution matrix, a unit-node flow injection matrix, a load-node flow matrix and a node flow injection total amount vector.

[0132] Optionally, in one embodiment of the present application, the construction module 200 is specifically used to calculate the node tracking matrix, the branch tracking matrix, the load tracking matrix and the unit tracking matrix.

[0133] Optionally, in one embodiment of the present application, the tracing module 300 is specifically configured to calculate the total power consumption of any power user at any node i as P i When , the calculation formula of the electricity consumption from unit j in the total electricity consumption is:

[0134] P ji =T Nji ×P i ,

[0135] In the carbon emission measurement process, the unit electricity carbon emission intensity is Equivalent electricity carbon emissions of electricity users The calculation formula is:

[0136]

[0137] Among them, the electricity equivalent carbon emissions of electricity users coming from unit j are:

[0138]

[0139] Optionally, in one embodiment of the present application, the traceability module 300 further includes:

[0140] The power flow on line i is P i When , the amount of electricity from the unit j in the power flow is:

[0141] P l ji =T Lji ×P i ,

[0142] In the carbon emission measurement process, the unit electricity carbon emission intensity is Equivalent electricity carbon emissions of power flow on the line for:

[0143]

[0144] Among them, the part of the power flow on the line coming from unit j is calculated as:

[0145]

[0146] It should be noted that the above explanation of the embodiment of the method for tracing the source of electricity equivalent carbon emissions is also applicable to the device for tracing the source of electricity equivalent carbon emissions in this embodiment, and will not be repeated here.

[0147] According to the current tracing device for electricity equivalent carbon emissions proposed in the embodiment of the present application, by acquiring the real-time current data of the power grid, a power grid current matrix is ​​established, and based on the node average distribution rule, the flow process of the equivalent carbon emissions of the power system in the power grid is calculated, and finally a user-power plant carbon tracing matrix and a line-power plant carbon tracing matrix are established. These matrices can directly characterize which power plants in the power grid the indirect carbon emissions of the user's electricity consumption come from and the proportion of each power plant. By using this method to measure the carbon emissions of user electricity consumption, the relationship between the user's carbon emissions and the carbon emissions of a specific power plant can be traced in real time, thereby improving the carbon measurement efficiency of the power grid, providing decision-making reference and support for power grid operators, and providing a reference basis for users to reduce carbon emissions.

[0148] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

[0149] Memory 301 , processor 302 , and computer programs stored in the memory 301 and executable on the processor 302 .

[0150] When the processor 302 executes the program, the method for tracing the source of electricity equivalent carbon emissions provided in the above embodiment is implemented.

[0151] Furthermore, the electronic device further includes:

[0152] The communication interface 303 is used for communication between the memory 301 and the processor 302 .

[0153] The memory 301 is used to store computer programs that can be run on the processor 302 .

[0154] The memory 301 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0155] If the memory 301, processor 302, and communication interface 303 are implemented independently, the communication interface 303, memory 301, and processor 302 can be connected to each other via a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0156] Optionally, in a specific implementation, if the memory 301, the processor 302 and the communication interface 303 are integrated on a chip, the memory 301, the processor 302 and the communication interface 303 can communicate with each other through an internal interface.

[0157] The processor 302 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0158] This embodiment also provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the method for tracing the source of electricity-equivalent carbon emissions is implemented.

[0159] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0160] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0161] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0162] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or N wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0163] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0164] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0165] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0166] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A method for tracing the source of electricity equivalent carbon emissions, characterized in that: The following steps are involved: Acquiring real-time power flow data of the power grid, and establishing a power flow matrix of the power grid according to the real-time power flow data; The step of establishing a power grid flow matrix according to the real-time flow data includes: Calculating a fixed parameter matrix of the power system, wherein the fixed parameter matrix includes a unit-node association distribution matrix, a load-node association distribution matrix, and a node-flow association distribution matrix; Calculating an operating parameter matrix of the power system, wherein the operating parameter matrix includes a node-flow correlation distribution matrix, a unit-node flow injection matrix, a load-node flow matrix, and a node flow injection total amount vector; Based on the node average distribution rule, the flow process of equivalent carbon emissions of the power system in the power grid is calculated, and the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix are established; The establishment of a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix includes: Calculate node tracking matrix, branch tracking matrix, load tracking matrix and unit tracking matrix; Determining source information of carbon emissions of electricity users based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix, wherein the source information includes one or more source power plants in the power grid and the proportion of each source power plant; The determining of the source information of carbon emissions of electricity users based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix includes: The total power consumption of any electricity user at any node i is P i When , the calculation formula of the electricity consumption from unit j in the total electricity consumption is: P ji =T Nji ×P i , In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is The equivalent carbon emissions of electricity consumption of the electricity users The calculation formula is: Among them, the portion of the electricity equivalent carbon emissions of the electricity user coming from the unit j is: The determining of the source information of carbon emissions of electricity users based on the user-power plant carbon tracking matrix and the line-power plant carbon tracking matrix further includes: The power flow on line i is P i When , the amount of electricity from the unit j in the power flow is: P l ji =T Lji ×P i , In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is Equivalent electricity carbon emissions of power flow on the line for: The part of the power flow on the line coming from the unit j is calculated as:

2. A device for tracing the source of electricity equivalent carbon emissions, characterized in that: include: An acquisition module is used to acquire real-time power flow data of the power grid and establish a power flow matrix of the power grid according to the real-time power flow data; Wherein, the acquisition module includes: A first calculation unit is configured to calculate a fixed parameter matrix of the power system, wherein the fixed parameter matrix includes a unit-node association distribution matrix, a load-node association distribution matrix, and a node-flow association distribution matrix; a second calculation unit, configured to calculate an operation parameter matrix of the power system, wherein the operation parameter matrix includes a node-flow correlation distribution matrix, a unit-node flow injection matrix, a load-node flow matrix, and a node flow injection total amount vector; A construction module is used to calculate the flow process of equivalent carbon emissions of the power system in the power grid based on the node average distribution rule, and establish a user-power plant carbon tracking matrix and a line-power plant carbon tracking matrix. The construction module is specifically used to calculate the node tracking matrix, the branch tracking matrix, the load tracking matrix, and the unit tracking matrix; and a tracing module, configured to determine source information of carbon emissions of electricity users based on the user-power plant carbon tracing matrix and the line-power plant carbon tracing matrix, wherein the source information includes one or more source power plants in the power grid and the proportion of each source power plant; The traceability module is specifically used to: The total power consumption of any electricity user at any node i is P i When , the calculation formula of the electricity consumption from unit j in the total electricity consumption is: P ji =T Nji ×P i , In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is The equivalent carbon emissions of electricity consumption of the electricity users The calculation formula is: Among them, the portion of the electricity equivalent carbon emissions of the electricity user coming from the unit j is: The traceability module further includes: The power flow on line i is P i When , the amount of electricity from the unit j in the power flow is: In the carbon emission measurement process, the unit electricity carbon emission intensity of the units is Equivalent electricity carbon emissions of power flow on the line for: The part of the power flow on the line coming from the unit j is calculated as:

3. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for tracing the source of electricity equivalent carbon emissions as claimed in claim 1.

4. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the power flow tracing method for electricity equivalent carbon emissions as claimed in claim 1.

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