Method and device for evaluating influence of emission factors of electric power system

Abstract

The invention provides an influence assessment method and device for emission factors of an electric power system, and can be applied to the technical field of electric power carbon emission. The influence evaluation method for the emission factors of the electric power system comprises the following steps: determining respective current evaluation data of a plurality of regions according to respective current power generation carbon emission and current power transmission quantity of the plurality of regions; constructing a current evaluation matrix based on the plurality of current evaluation data and the current power transmission quantity; based on a power transmission constraint condition between the current scene and a future scene, according to the current evaluation matrix and the current power transmission quantity, predicting to obtain a target power transmission quantity; determining respective target evaluation data of the plurality of areas according to the respective target power generation discharge amount and target power transmission amount of the plurality of areas; and according to the current evaluation data and the target evaluation data, an influence evaluation result of change information on the emission factors of the electric power system of the region is determined, and the change information represents the difference of the future scene relative to the current scene under the power transmission constraint condition.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power carbon emissions, and more specifically to a method and device for evaluating the impact of power system emission factors. Background Art

[0002] Power systems generate, transmit, distribute, and consume electricity, ensuring efficient, secure, and stable power supply. Impact assessments of power system emissions factors are often conducted to use the results to control the power system to generate a desired amount of electricity and achieve emissions reductions.

[0003] However, the impact assessment of power system emission factors takes into account relatively single factors, resulting in inaccurate assessment results, which in turn reduces the power control accuracy of the power system and reduces the emission reduction effect of the power system. Summary of the Invention

[0004] In view of the above problems, the present disclosure provides a method and device for evaluating the impact of power system emission factors.

[0005] According to a first aspect of the present disclosure, a method for evaluating the impact of emission factors of a power system is provided, comprising: determining current evaluation data of each of the multiple regions based on their respective current power generation carbon emissions and current power transmission amounts, the current power transmission amount representing the power transmission situation between the multiple regions under the current scenario, and the current evaluation data representing the extent to which carbon emissions of the multiple regions are affected by power transmission under the current scenario; constructing a current evaluation matrix based on the current evaluation data and current power transmission amounts of each of the multiple regions; predicting a target power transmission amount under a future scenario based on the current evaluation matrix and the current power transmission amount based on power transmission constraints between the current scenario and the future scenario; determining target evaluation data of each of the multiple regions under a future scenario based on their respective target power generation emissions and target power transmission amounts; determining an evaluation result of the impact of change information on the emission factors of the power system of the region based on the current evaluation data and the target evaluation data, the change information representing the difference between the future scenario and the current scenario under the power transmission constraints.

[0006] According to an embodiment of the present disclosure, a current evaluation matrix is ​​constructed based on current evaluation data and current power transmission amounts of each of the multiple regions, including: determining a target region that meets a preset influence condition from the multiple regions based on the current evaluation data of each of the multiple regions; constructing a current evaluation matrix based on the current evaluation data and the target current element position of the current power transmission amount of the target region in the current power transmission matrix, wherein the current power transmission matrix includes multiple current elements, and the multiple current elements represent the current power transmission amounts of each of the multiple regions.

[0007] According to an embodiment of the present disclosure, a current evaluation matrix is ​​constructed based on current evaluation data and the matrix position of the current power transmission amount of the target area in the current power transmission matrix, including: determining a quantitative parameter based on the current evaluation data and the power system emission factor of the area; determining a target initial element position from an initial evaluation matrix based on the target current element position of the current power transmission amount in the current power transmission matrix, the number of rows and the number of columns between the initial evaluation matrix and the current power transmission matrix being the same; updating a target initial element at the target initial element position in the initial evaluation matrix based on the current evaluation data; and updating other elements in the initial evaluation matrix except the target initial element to preset element values ​​to obtain the current evaluation matrix.

[0008] According to an embodiment of the present disclosure, the preset influencing condition includes that the quantization parameter of the region is within a preset numerical range, and the preset numerical range is determined according to the number of regions and a plurality of current evaluation data.

[0009] According to an embodiment of the present disclosure, based on the power transmission constraints between the current scenario and the future scenario, according to the current evaluation matrix and the current power transmission amount, a target power transmission amount in the future scenario is predicted, including: determining a target power transmission matrix that satisfies the power transmission constraints according to the current evaluation matrix, the adjustment coefficient, and the current power transmission matrix, the target power transmission matrix including multiple future elements, and the future elements representing the target power transmission amounts between the multiple regions in the future scenario.

[0010] According to an embodiment of the present disclosure, current evaluation data of each of the multiple regions is determined based on the current power generation carbon emissions and current power transmission volume of each of the multiple regions, including: calculating the power system emission factor of the region based on the current power generation carbon emissions, the total power generation of the region and the current power transmission volume; and determining the current evaluation data of the region based on the power system emission factor.

[0011] According to an embodiment of the present disclosure, the current evaluation data of a region is determined based on the power system emission factor, including: calculating the power generation carbon emission factor of the region based on the power system emission factor and the total power generation of multiple regions; and determining the current evaluation data of the region based on the power system emission factor and the power generation carbon emission factor of the region.

[0012] According to an embodiment of the present disclosure, the power transmission constraint condition includes: the power transmission structure of multiple regions remains unchanged or the total amount of power transmission between multiple regions remains unchanged.

[0013] According to an embodiment of the present disclosure, the impact assessment result includes the degree of impact of the change information on the emission factor of the power system of the region.

[0014] The second aspect of the present disclosure provides an impact assessment device for power system emission factors, including: a first determination module, for determining current assessment data of each of the multiple regions based on the current power generation carbon emissions and current power transmission amounts of each of the multiple regions, the current power transmission amount representing the power transmission situation between the multiple regions in the current year, and the current assessment data representing the degree to which the carbon emissions of the multiple regions are affected by power transmission under the current scenario; a construction module, for constructing a current assessment matrix based on the current assessment data and current power transmission amounts of each of the multiple regions; a prediction module, for predicting the target power transmission amount in the future scenario based on the power transmission constraints between the current scenario and the future scenario, according to the current assessment matrix and the current power transmission amount; a second determination module, for determining the target assessment data of each of the multiple regions in the future scenario based on the target power generation emissions and target power transmission amounts of each of the multiple regions; a third determination module, for determining the impact evaluation result of change information on the emission factor of the power system of the region based on the current assessment data and the target assessment data, the change information representing the difference between the future scenario and the current scenario under the power transmission constraints.

[0015] A third aspect of the present disclosure provides an electronic device, comprising: one or more processors; and a memory for storing one or more computer programs, wherein the one or more processors execute the one or more computer programs to implement the steps of the above method.

[0016] The fourth aspect of the present disclosure further provides a computer-readable storage medium having a computer program or instructions stored thereon, which implements the steps of the above method when the computer program or instructions are executed by a processor.

[0017] The fifth aspect of the present disclosure further provides a computer program product, comprising a computer program or instructions, which implement the steps of the above method when executed by a processor.

[0018] According to an embodiment of the present disclosure, current assessment data for each of the multiple regions is determined based on their respective current power generation carbon emissions and current power transmission volumes. Since the current power transmission volumes represent the power transmission situation between the multiple regions under the current scenario, the current assessment data includes the coordinated power transmission between power systems in different regions. A current assessment matrix is ​​constructed based on the current assessment data and current power transmission volumes for each of the multiple regions; thus, the current assessment matrix includes the extent to which power transmission affects the carbon emissions of the multiple regions under the current scenario.

[0019] Based on the power transmission constraints between the current and future scenarios, the target power transmission volume for the future scenario can be accurately predicted based on the current assessment matrix and the current power transmission volume. This target power transmission volume more closely reflects the actual inter-regional power transmission situation in the future scenario. Target assessment data for each region in the future scenario is determined based on their respective target power generation emissions and target power transmission volumes.

[0020] Because the change information represents the difference between the future scenario and the current scenario under power transmission constraints, and the current assessment data under the current scenario and the target assessment data under the future scenario both combine the time-varying extent to which regional carbon emissions are affected by power transmission under power transmission constraints, the impact assessment results of the change information on the emission factors of the regional power system can be accurately determined based on the current assessment data and the target assessment data under the future scenario. At the same time, both the current assessment data and the target assessment data contain information on the coordinated power transmission between power systems in different regions. The impact assessment results can be used to precisely coordinate the control of power systems in multiple regions, improving the control accuracy of the power system and enhancing the emission reduction effect of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above contents and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0022] Figure 1 A schematic diagram of a power system cluster according to an embodiment of the present disclosure is schematically shown;

[0023] Figure 2 A flowchart of a method for evaluating the impact of power system emission factors according to an embodiment of the present disclosure is schematically shown;

[0024] Figure 3 A schematic diagram schematically illustrates power system emission factors under a baseline scenario, a future scenario based on a constant power transmission structure in multiple regions, and a future scenario based on a constant total amount of power transmission between multiple regions according to an embodiment of the present disclosure;

[0025] Figure 4 Schematic diagrams illustrating power generation emission factors under a baseline scenario, a future scenario based on a constant power transmission structure across multiple regions, and a future scenario based on a constant total power transmission volume between multiple regions according to an embodiment of the present disclosure;

[0026] Figure 5 A block diagram schematically illustrates a structure of a device for evaluating the impact of power system emission factors according to an embodiment of the present disclosure; and

[0027] Figure 6A block diagram of an electronic device suitable for implementing a method for evaluating the impact of power system emission factors according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0029] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise," "include," etc. used herein indicate the presence of the features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0030] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0031] When expressions such as "at least one of A, B, and C, etc." are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0032] Power systems generate, transmit, distribute, and consume electricity, ensuring efficient, secure, and stable power supply. Impact assessments of power system emissions factors are often conducted to use the results to control the power system to generate a desired amount of electricity and achieve emissions reductions.

[0033] However, the impact assessment of power system emission factors takes into account relatively single factors, resulting in inaccurate assessment results, which in turn reduces the power control accuracy of the power system and reduces the emission reduction effect of the power system.

[0034] An embodiment of the present disclosure provides an impact assessment method for emission factors of an electric power system, comprising: determining current assessment data of each of the multiple regions based on their respective current power generation carbon emissions and current power transmission amounts, the current power transmission amount representing the power transmission situation between the multiple regions under the current scenario, and the current assessment data representing the extent to which carbon emissions of the multiple regions are affected by power transmission under the current scenario; constructing a current assessment matrix based on their respective current assessment data and current power transmission amounts; predicting a target power transmission amount under a future scenario based on the current assessment matrix and the current power transmission amount based on power transmission constraints between the current scenario and the future scenario; determining target assessment data of each of the multiple regions under a future scenario based on their respective target power generation emissions and target power transmission amounts; determining an assessment result of the impact of change information on the emission factors of the regional electric power system based on the current assessment data and the target assessment data, the change information representing the difference between the future scenario and the current scenario under the power transmission constraints.

[0035] Figure 1 The figure schematically shows a power system cluster according to an embodiment of the present disclosure.

[0036] like Figure 1 As shown, the power system cluster 100 according to this embodiment may include power systems of multiple regions.

[0037] The power system cluster 100 includes a first power system 101 in a first region, a second power system 102 in a second region, and a third power system 103 in a third region. That is, the power structure of the power system 100 is composed of the first power system 101, the second power system 102, and the third power system 103.

[0038] For example, the power transmission situation of the power system cluster 100 may be that the first power system 101 can transmit power to the second power system 102 and the third power system 103. The second power system 102 transmits power to the second power system 102 and the third power system 103 respectively.

[0039] For example, the first power system 101 transmits 90 MW of electricity to the second power system 102 for residential use in the second area, and the second power system 102 transmits 10 MW of electricity to the first power system for road use in the first area.

[0040] It should be noted that there is no limit to the number of power systems. The power system can be used to generate electricity using coal, renewable energy, etc.

[0041] Figure 2 A flowchart of a method for evaluating the impact of power system emission factors according to an embodiment of the present disclosure is schematically shown.

[0042] like Figure 2 As shown, the method for evaluating the impact of emission factors of a power system in this embodiment includes operations S210 to S250, and the method for evaluating the impact of emission factors of a power system can be executed by a server.

[0043] In operation S210 , current evaluation data of each of the plurality of regions is determined based on the current power generation carbon emissions and the current power transmission amounts of each of the plurality of regions.

[0044] According to an embodiment of the present disclosure, the power system of each region may include multiple power subsystems, which may include a renewable energy generation subsystem and a non-renewable energy generation subsystem. The non-renewable energy generation subsystem may include a coal-fired generation subsystem, and the renewable energy generation subsystem may include a wind power generation subsystem.

[0045] According to an embodiment of the present disclosure, the current carbon emissions from power generation and the current power transmission amount can be obtained from a database using a data interface. The current power transmission amount can be obtained through sensors installed in each power system.

[0046] According to an embodiment of the present disclosure, the current power transfer amount represents the power transfer status between multiple regions in the current scenario. For example, the multiple regions may be a first region, a second region, and a third region. The current power transfer amount of the first region may include the amount of power transferred from the second region to the first region and the amount of power transferred from the third region to the first region.

[0047] According to an embodiment of the present disclosure, the current power generation carbon emissions may be the carbon emissions of a power subsystem using coal-fired power generation in a region under the current prospects.

[0048] According to an embodiment of the present disclosure, the current assessment data represents the extent to which carbon emissions of multiple regions are affected by power transmission under the current scenario.

[0049] For example, if the total number of power systems in multiple regions is reduced, the current assessment data may be lowered, that is, the carbon emissions of multiple regions are reduced by the reduction in the total number of power systems.

[0050] For example, if the types of power systems in multiple regions change, the current assessment data may increase, that is, the carbon emissions in multiple regions may change suddenly due to the changes in the types of power systems.

[0051] In operation S220 , a current evaluation matrix is ​​constructed based on the current evaluation data and the current power transmission amounts of the respective plurality of areas.

[0052] According to an embodiment of the present disclosure, the current assessment matrix can characterize how the power system emission factors of the multiple regions are affected by power transmission under the current scenario.

[0053] For example, each row and column in the current assessment matrix represents a region. Rows 1 through 2 represent regions 1 through 2, respectively. Columns 1 through 2 also represent regions 1 through 2, respectively. The current assessment element in the current assessment matrix can represent the impact of a change in power transmission in one region on the power system emission factor of another region.

[0054] For example, the current assessment element in the first row and second column of the current assessment matrix is ​​the impact of power transmission in the first region on the power system emission factor in the second region under the current scenario.

[0055] In operation S230 , based on the power transmission constraint conditions between the current scenario and the future scenario, a target power transmission amount in the future scenario is predicted according to the current evaluation matrix and the current power transmission amount.

[0056] According to an embodiment of the present disclosure, the current scenario and the future scenario have different time periods. The future scenario is later than the current scenario. The transmission constraint may be transmission information that does not change over time. For example, the transmission constraint may include the power transmission capacity of the power system in the second region remaining unchanged, the types of power systems between multiple regions remaining unchanged, or the power transmission relationships between multiple regions remaining unchanged.

[0057] For example, based on the current evaluation matrix, the current power transmission amount and the transmission planning information, a target power transmission amount that satisfies the power transmission constraint conditions in a future scenario can be predicted.

[0058] For example, based on the current assessment matrix and current power transfer, the change in power transfer under future scenarios, as power transmission changes, can be estimated. The power transfer change data and transfer constraints are input into a machine learning model to predict the target power transfer under future scenarios. The machine learning model can be trained based on historical power transfer and transfer constraints for each region.

[0059] The predicted target power transmission volume in future scenarios can be used to control the power systems in each region to generate electricity accurately to meet the electricity needs of each region.

[0060] In operation S240 , target evaluation data of each of the plurality of regions in a future scenario is determined based on the target power generation emission amounts and target power transmission amounts of each of the plurality of regions.

[0061] According to embodiments of the present disclosure, target power generation emissions can be determined based on a region's future power generation situation. A data interface can be used to obtain power generation planning information for the region under future scenarios from various data sources or web pages. This power generation planning information can be used to estimate the target power generation emissions.

[0062] It should be noted that the steps and methods of operation S240 are identical to those of operation S210, with only the data being different. For example, operation S210 inputs the current power generation emissions and current power transmission capacity, while operation S240 inputs the target power generation emissions and target power transmission capacity. Operation S210 outputs the current assessment data, while operation S240 outputs the target assessment data.

[0063] In operation S250 , an evaluation result of the impact of the change information on the emission factor of the power system of the region is determined based on the current evaluation data and the target evaluation data.

[0064] According to an embodiment of the present disclosure, the change information represents the difference between the future scenario and the current scenario under the power transmission constraint. For example, the change information may include a change in the power system layout between regions, a change in the power transmission situation between regions, etc.

[0065] According to an embodiment of the present disclosure, current assessment data for each of the multiple regions is determined based on their respective current power generation carbon emissions and current power transmission volumes. Since the current power transmission volumes represent the power transmission situation between the multiple regions under the current scenario, the current assessment data includes the coordinated power transmission between power systems in different regions. A current assessment matrix is ​​constructed based on the current assessment data and current power transmission volumes for each of the multiple regions; thus, the current assessment matrix includes the extent to which power transmission affects the carbon emissions of the multiple regions under the current scenario.

[0066] Based on the power transmission constraints between the current and future scenarios, the target power transmission volume for the future scenario can be accurately predicted based on the current assessment matrix and the current power transmission volume. This target power transmission volume more closely reflects the actual inter-regional power transmission situation in the future scenario. Target assessment data for each region in the future scenario is determined based on their respective target power generation emissions and target power transmission volumes.

[0067] Because the change information represents the difference between the future scenario and the current scenario under power transmission constraints, and the current assessment data under the current scenario and the target assessment data under the future scenario both combine the time-varying extent to which regional carbon emissions are affected by power transmission under power transmission constraints, the impact assessment results of the change information on the emission factors of the regional power system can be accurately determined based on the current assessment data and the target assessment data under the future scenario. At the same time, both the current assessment data and the target assessment data contain information on the coordinated power transmission between power systems in different regions. The impact assessment results can be used to precisely coordinate the control of power systems in multiple regions, improving the control accuracy of the power system and enhancing the emission reduction effect of the power system.

[0068] According to an embodiment of the present disclosure, current evaluation data of each of the multiple regions is determined based on the current power generation carbon emissions and current power transmission volume of each of the multiple regions, including: calculating the power system emission factor of the region based on the current power generation carbon emissions, the total power generation of the region and the current power transmission volume; and determining the current evaluation data of the region based on the power system emission factor.

[0069] The current carbon emissions from electricity generation for each region are calculated as follows:

[0070] (1);

[0071] E i represents the carbon emissions from power generation in region i, represents the thermal power generation in region i, represents the thermal power emission factor in region i.

[0072] The formula for the power system emission factor for region i is as follows:

[0073] (2);

[0074] EF i represents the power system emission factor of region i under the current scenario, E i is the current carbon emissions from power generation in region i, EF j is the power system emission factor of region j for the net amount of electricity exported to region i, is the total power generation in region i, is the current power transmission capacity of region j that net sends power to region i.

[0075] According to an embodiment of the present disclosure, the current evaluation data of a region is determined based on the power system emission factor, including: calculating the power generation carbon emission factor of the region based on the power system emission factor and the total power generation of multiple regions; and determining the current evaluation data of the region based on the power system emission factor and the power generation carbon emission factor of the region.

[0076] Carbon emission factor of power generation in region i The formula is as follows

[0077] (3);

[0078] n represents the number of regions.

[0079] By calculating the power system emission factor EF of region i under the current scenario i and the carbon emission factor of power generation in region i Make the difference and get the current assessment data effecttrans under the baseline scenario.

[0080] (4);

[0081] According to an embodiment of the present disclosure, a current evaluation matrix is ​​constructed based on current evaluation data and current power transmission amounts of each of the multiple regions, including: determining a target region that meets a preset influence condition from the multiple regions based on the current evaluation data of each of the multiple regions; constructing a current evaluation matrix based on the current evaluation data and the target current element position of the current power transmission amount of the target region in the current power transmission matrix, wherein the current power transmission matrix includes multiple current elements, and the multiple current elements represent the current power transmission amounts of each of the multiple regions.

[0082] According to an embodiment of the present disclosure, it is determined whether the current evaluation data of each of the plurality of regions satisfies a preset impact condition. The preset impact condition may be that the current evaluation data is within a preset value range.

[0083] According to an embodiment of the present disclosure, the current evaluation matrix and the current power transmission matrix have the same number of rows and columns, and the regions represented by the rows or columns in the current evaluation matrix and the current power transmission matrix are the same.

[0084] According to an embodiment of the present disclosure, the preset influencing condition includes that the quantization parameter of the region is within a preset numerical range, and the preset numerical range is determined according to the number of regions and a plurality of current evaluation data.

[0085] Quantization parameter IMPACT of region i i The formula is as follows:

[0086] (5);

[0087] A positive value of the quantitative parameter indicates that the value of the power system emission factor decreases after power transmission; a negative value of the quantitative parameter indicates that the value of the change information increases after power transmission.

[0088] The formula for the preset influencing condition is as follows:

[0089] (6);

[0090] The preset value range is determined according to the number n of regions and the quantization parameters of each of the regions.

[0091] According to an embodiment of the present disclosure, a current evaluation matrix is ​​constructed based on current evaluation data and the matrix position of the current power transmission amount of the target area in the current power transmission matrix, including: determining a quantitative parameter based on the current evaluation data and the power system emission factor of the area; determining a target initial element position from an initial evaluation matrix based on the target current element position of the current power transmission amount in the current power transmission matrix, the number of rows and the number of columns between the initial evaluation matrix and the current power transmission matrix being the same; updating a target initial element at the target initial element position in the initial evaluation matrix based on the current evaluation data; and updating other elements in the initial evaluation matrix except the target initial element to preset element values ​​to obtain the current evaluation matrix.

[0092] Tr0 represents the current power transmission matrix. 12 represents the current power transmission data between region 1 and region 2 in the current scenario, where n is the number of regions. The data in the first column of the current power transmission matrix is ​​the current power transmission amount transmitted from other regions to the first region.

[0093] (7);

[0094] For example, if the target area is area 1, the current power transmission amount from other areas to the first area is determined in the first column of the current power transmission matrix. Therefore, the first column in the initial evaluation matrix is ​​determined as the target initial element position. Based on the current evaluation data and the regional power system emission factor, the quantitative parameters are determined (as shown in formula (5)). Using 1+IMPACT i Update the target initial element in the first column of the initial evaluation matrix. The target area also includes area n-1 and area n.

[0095] The preset element value can be 1, and the other elements in the initial evaluation matrix except the target initial element are updated to 1, and the current evaluation matrix Tr is obtained. adj as follows.

[0096] (8);

[0097] When i is the target area, Tr adj The item in column i is 1+IMPACT i , when i is not the target area, Tr adj The item in column i is 1.

[0098] According to an embodiment of the present disclosure, based on the power transmission constraints between the current scenario and the future scenario, according to the current evaluation matrix and the current power transmission amount, a target power transmission amount in the future scenario is predicted, including: determining a target power transmission matrix that satisfies the power transmission constraints according to the current evaluation matrix, the adjustment coefficient, and the current power transmission matrix, the target power transmission matrix including multiple future elements, and the future elements representing the target power transmission amounts between the multiple regions in the future scenario.

[0099] Tr new The change power transfer matrix Tr represents the change information under the power transfer constraints between the current scenario and the future scenario. new The number of rows and columns are the same as those of the current power transmission matrix Tr0.

[0100] (9);

[0101] Tr t represents the target power transmission matrix under the future scenario.

[0102] (10);

[0103] According to an embodiment of the present disclosure, the power transmission constraint condition includes: the power transmission structure of multiple regions remains unchanged or the total amount of power transmission between multiple regions remains unchanged.

[0104] For example, when the power constraint condition may be that the total amount of power transmission between multiple regions remains unchanged, the change information may be the power transmission structure of the multiple regions.

[0105] The adjustment coefficient can be a structural parameter adjust. According to the current evaluation matrix Tr adj , structural parameters adjust, change power transmission matrix Tr new The formula for determining the target power transmission matrix that satisfies the constant total power amount is as follows:

[0106] (11);

[0107] (12);

[0108] The above formulas (11) and (12) can ensure that the total amount of electricity transmission in the future scenario based on the unchanged total amount of electricity transmission is the same as that in the baseline scenario.

[0109] It should be noted that the target assessment data is calculated as shown in formula (4). By subtracting the power system emission factor of region i in the future scenario from the power generation carbon emission factor of region i in the future scenario, the target assessment data effecttrans based on the future scenario where the total amount of power transmission remains unchanged is obtained.

[0110] According to an embodiment of the present disclosure, an evaluation result of the impact of change information on the emission factor of the power system of a region is determined based on current evaluation data and target evaluation data.

[0111] According to an embodiment of the present disclosure, the impact assessment result includes the degree of impact of the change information on the emission factor of the regional power system. The impact degree can be expressed as e i .

[0112] For example, the impact of the change in the power transmission structure of region i on the power system emission factor is as follows:

[0113] (13)

[0114] represents the degree of impact of the change in power transmission structure between the future scenario based on the unchanged total power transmission volume and the baseline scenario on the power system emission factor of sub-region i, represents the target assessment data (i.e., the impact of power transmission on the power system emission factor of sub-region i based on a future scenario where the total amount of power transmission remains unchanged), represents the current assessment data under the baseline scenario (i.e., the impact of power transmission under the baseline scenario on the power system emission factor of sub-region i).

[0115] For example, in a case where the power constraint condition may be that the power transmission structure between multiple regions remains unchanged, the change information may be that the total amount of power transmission between the multiple regions changes.

[0116] According to formula (10), the target power transmission matrix Tr in the future scenario is obtained t The adjustment coefficient can be the scale expansion parameter scale. According to the current evaluation matrix Tr adj , scale expansion parameter scale, change power transmission matrix Tr new The formula for determining the target power transmission matrix that satisfies the unchanged power transmission structure is as follows:

[0117] (14)

[0118] scale is a scale expansion parameter greater than 1. The value of the scale expansion parameter can be set according to historical data on the growth rate of regional power transmission planning, etc., to ensure that the power transmission scale of the future scenario and the baseline scenario based on the unchanged power transmission structure is the same.

[0119] The impact of changes in the total amount of electricity transmission on the power system emission factors is as follows:

[0120] (15)

[0121] represents the degree of impact of the change in total power transmission volume between the future scenario based on the unchanged power transmission structure and the baseline scenario on the power system emission factor of sub-region i, represents the target assessment data (i.e., the impact of the total amount of power transmission on the power system emission factor of sub-region i under the future scenario based on the power transmission structure layout), represents the current assessment data under the baseline scenario (i.e., the impact of the total amount of electricity transmission under the baseline scenario on the power system emission factor of sub-region i).

[0122] e i It indicates the degree of influence of the change information on the emission factor of the regional power system, n represents the number of regions, and the formula for the preset impact threshold e is as follows:

[0123] (16)

[0124] For example, the constraint condition is that the power transmission structure remains unchanged, and the change information is the total amount of power transmission. If the absolute value of the impact of the change in the total amount of power transmission on the power system emission factor is greater than or equal to a first preset impact threshold, as shown in Formula 17, the power system emission factor is affected by the change in the total amount of power transmission.

[0125] (17)

[0126] like , then the power system emission factor of region i will increase due to the increase in the total amount of power transmission; if , then the power system emission factor of sub-region i is reduced due to the increase in the total amount of power transmission.

[0127] For example, if the constraint condition is that the total amount of power transmission remains unchanged, and the change information is the power structure, the absolute value of the impact of the change in the power transmission structure on the power system emission factor is greater than or equal to a second preset impact threshold. As shown in Formula 18, the carbon emission factor of the power system is affected by the change in the power structure.

[0128] (18)

[0129] like , then the power system emission factor of region i will increase due to the change of power transmission structure; if , then the power system emission factor of region i is reduced due to the change in power transmission structure.

[0130] As shown in Table 1, regions 9, 10, 11, 12, 14, 15, 16, 19, and 29 reduced emissions due to the increase in total power transmission; regions 1, 3, and 6 increased emissions due to the increase in total power transmission; regions 1, 9, 10, 11, 15, and 16 reduced emissions due to changes in the power transmission structure; and regions 12, 18, and 22 increased emissions due to changes in the power transmission structure.

[0131] Table 1

[0132]

[0133] Figure 3 A schematic diagram of power system emission factors under a baseline scenario, a future scenario based on an unchanged power transmission structure in multiple regions, and a future scenario based on an unchanged total amount of power transmission between multiple regions according to an embodiment of the present disclosure is schematically shown.

[0134] like Figure 3 As shown in the figure, “baseline” represents the baseline scenario, “scale” represents the future scenario based on the unchanged power transmission structure of multiple regions, and “structure” represents the future scenario based on the unchanged total amount of power transmission between multiple regions.

[0135] The multiple regions include Regions 1 to 30. Taking Region 2 as an example, the power system emission factor under the baseline scenario of Region 2 is higher than the power system emission factor under the future scenario based on the unchanged power transmission structure of multiple regions, and is also higher than the power system emission factor under the future scenario based on the unchanged total power transmission volume between multiple regions.

[0136] Since the scale of the power subsystem in Region 29 is much larger than that in Region 28, the power system emission factors in Region 28 under the three different scenarios are all lower than those in Region 29 under the three different scenarios.

[0137] Figure 4 A schematic diagram of power generation emission factors under a baseline scenario, a future scenario based on an unchanged power transmission structure in multiple regions, and a future scenario based on an unchanged total power transmission volume between multiple regions according to an embodiment of the present disclosure is schematically shown.

[0138] like Figure 4As shown, “baseline” represents the baseline scenario, “scale” represents the future scenario based on the unchanged power transmission structure of multiple regions, and “structure” represents the future scenario based on the unchanged total amount of power transmission between multiple regions.

[0139] The multiple regions include Regions 1 to 30. Taking Region 16 as an example, the power generation emission factor in the baseline scenario for Region 16 is higher than the power generation emission factor in the future scenario based on an unchanged power transmission structure for multiple regions, and is also higher than the power generation emission factor in the future scenario based on an unchanged total power transmission volume between multiple regions.

[0140] The power generation emission factor of region 2 under the baseline scenario is higher than the nominal power generation emission factor of region 1 under the baseline scenario.

[0141] Figure 5 The structural block diagram of the device for evaluating the impact of power system emission factors according to an embodiment of the present disclosure is schematically shown.

[0142] like Figure 5 As shown, the power system emission factor impact assessment device 500 of this embodiment includes a first determination module 510 , a construction module 520 , a prediction module 530 , a second determination module 540 and a third determination module 550 .

[0143] First determination module 510 is configured to determine current assessment data for each of the multiple regions based on the current carbon emissions from power generation and the current power transmission volume of each of the multiple regions. The current power transmission volume represents the power transmission situation between the multiple regions in the current year, and the current assessment data represents the degree to which the carbon emissions of the multiple regions are affected by power transmission in the current scenario. In one embodiment, first determination module 510 can be configured to perform operation S210 described above, and will not be further described here.

[0144] The construction module 520 is used to construct a current evaluation matrix based on the current evaluation data and current power transmission amounts of the multiple regions. In one embodiment, the construction module 520 can be used to perform the operation S220 described above, which will not be repeated here.

[0145] Prediction module 530 is configured to predict a target power transfer amount in a future scenario based on the power transfer constraints between the current scenario and the future scenario, according to the current evaluation matrix and the current power transfer amount. In one embodiment, prediction module 530 may be configured to perform operation S230 described above, which will not be further described here.

[0146] The second determination module 540 is configured to determine target assessment data for each of the multiple regions in a future scenario based on the target power generation emissions and target power transmission volumes of each of the multiple regions. In one embodiment, the second determination module 540 may be configured to perform operation S240 described above, which will not be further described here.

[0147] The third determination module 550 is configured to determine an evaluation result of the impact of the change information on the emission factor of the regional power system based on the current assessment data and the target assessment data. The change information represents the difference between the future scenario and the current scenario under the power transmission constraints. In one embodiment, the third determination module 550 can be configured to perform operation S250 described above and will not be further described here.

[0148] According to an embodiment of the present disclosure, the construction module 520 includes a first determination submodule and a construction submodule. The first determination submodule is configured to determine a target region that meets a preset influence condition from the multiple regions based on the current evaluation data of each of the multiple regions; the construction submodule is configured to construct a current evaluation matrix based on the current evaluation data and the target current element position of the current power transfer amount of the target region in the current power transfer matrix. The current power transfer matrix includes multiple current elements, each of which represents the current power transfer amount of each of the multiple regions.

[0149] According to an embodiment of the present disclosure, the construction submodule includes a first determination unit, a second determination unit, a first update unit, and a second update unit. The first determination unit is used to determine the quantitative parameter based on the current evaluation data and the regional power system emission factor; the second determination unit is used to determine the target initial element position from the initial evaluation matrix based on the target current element position of the current power transmission amount in the current power transmission matrix, and the number of rows and columns between the initial evaluation matrix and the current power transmission matrix are the same; the first update unit is used to update the target initial element of the target initial element position in the initial evaluation matrix according to the current evaluation data; the second update unit is used to update the other elements in the initial evaluation matrix except the target initial element to the preset element value to obtain the current evaluation matrix.

[0150] According to an embodiment of the present disclosure, the preset influencing condition includes that the quantization parameter of the region is within a preset numerical range, and the preset numerical range is determined according to the number of regions and a plurality of current evaluation data.

[0151] According to an embodiment of the present disclosure, the prediction module 530 includes a second determination submodule. The second determination submodule is configured to determine a target power transfer matrix that satisfies power transfer constraints based on the current evaluation matrix, the adjustment coefficient, and the current power transfer matrix. The target power transfer matrix includes multiple future elements, each of which represents a target power transfer amount between multiple regions under a future scenario.

[0152] According to an embodiment of the present disclosure, the first determination module 510 includes a calculation submodule and a third determination submodule. The calculation submodule is configured to calculate the power system emission factor of the region based on the current carbon emissions from power generation, the total power generation of the region, and the current power transmission volume; and the third determination submodule is configured to determine the current assessment data of the region based on the power system emission factor.

[0153] According to an embodiment of the present disclosure, the third determination submodule includes a first calculation unit and a third determination unit. The first calculation unit is configured to calculate a region's power generation carbon emission factor based on the power system emission factor and the total power generation of each of the multiple regions; the third determination unit is configured to determine the region's current assessment data based on the region's power system emission factor and the power generation carbon emission factor.

[0154] According to an embodiment of the present disclosure, the power transmission constraint condition includes: the power transmission structure of multiple regions remains unchanged or the total amount of power transmission between multiple regions remains unchanged.

[0155] According to an embodiment of the present disclosure, the impact assessment result includes the degree of impact of the change information on the emission factor of the power system of the region.

[0156] According to embodiments of the present disclosure, any multiple modules among the first determination module 510, construction module 520, prediction module 530, second determination module 540, and third determination module 550 may be combined into a single module, or any one of these modules may be split into multiple modules. Alternatively, at least part of the functionality of one or more of these modules may be combined with at least part of the functionality of other modules and implemented in a single module. According to embodiments of the present disclosure, at least one of the first determination module 510, construction module 520, prediction module 530, second determination module 540, and third determination module 550 may be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on a chip, a system on a substrate, a system on a package, an application-specific integrated circuit (ASIC), or may be implemented in hardware or firmware through any other reasonable means of circuit integration or packaging, or may be implemented in any one of the three implementation methods of software, hardware, and firmware, or any appropriate combination of any of these. Alternatively, at least one of the first determination module 510 , the construction module 520 , the prediction module 530 , the second determination module 540 , and the third determination module 550 may be at least partially implemented as a computer program module, which may perform corresponding functions when executed.

[0157] Figure 6 A block diagram of an electronic device suitable for implementing a method for evaluating the impact of power system emission factors according to an embodiment of the present disclosure is schematically shown.

[0158] like Figure 6 As shown, an electronic device 600 according to an embodiment of the present disclosure includes a processor 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage portion 608 into a random access memory (RAM) 603. The processor 601 may include, for example, a general-purpose microprocessor (e.g., a CPU), an instruction set processor and / or a related chipset and / or a special-purpose microprocessor (e.g., an application-specific integrated circuit (ASIC)), etc. The processor 601 may also include onboard memory for caching purposes. The processor 601 may include a single processing unit or multiple processing units for performing different actions of the method flow according to an embodiment of the present disclosure.

[0159] Various programs and data required for the operation of the electronic device 600 are stored in the RAM 603. The processor 601, ROM 602, and RAM 603 are connected to each other via a bus 604. The processor 601 executes the various operations of the method flow according to the embodiment of the present disclosure by executing the programs in the ROM 602 and / or RAM 603. It should be noted that the programs may also be stored in one or more memories other than the ROM 602 and RAM 603. The processor 601 may also execute the various operations of the method flow according to the embodiment of the present disclosure by executing the programs stored in the one or more memories.

[0160] According to an embodiment of the present disclosure, electronic device 600 may further include an input / output (I / O) interface 605, which is also connected to bus 604. Electronic device 600 may also include one or more of the following components connected to I / O interface 605: an input section 606 including a keyboard, mouse, etc.; an output section 607 including devices such as a cathode ray tube (CRT), liquid crystal display (LCD), and speakers; a storage section 608 including a hard disk; and a communication section 609 including a network interface card such as a LAN card or modem. Communication section 609 performs communication processing via a network such as the Internet. A drive 610 is also connected to I / O interface 605 as needed. Removable media 611, such as a magnetic disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed in drive 610 as needed, so that computer programs read from the removable media can be installed into storage section 608 as needed.

[0161] The present disclosure also provides a computer-readable storage medium, which may be included in the device / apparatus / system described in the above embodiments, or may exist independently and not be incorporated into the device / apparatus / system. The computer-readable storage medium carries one or more programs, and when executed, implements the method according to the embodiments of the present disclosure.

[0162] According to an embodiment of the present disclosure, a computer-readable storage medium may be a non-volatile computer-readable storage medium, and may include, for example, but not limited to: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. For example, according to an embodiment of the present disclosure, a computer-readable storage medium may include the ROM 602 and / or RAM 603 described above, and / or one or more memories other than ROM 602 and RAM 603.

[0163] Embodiments of the present disclosure also include a computer program product comprising a computer program containing program code for executing the method shown in the flowchart. When the computer program product is executed in a computer system, the program code is used to cause the computer system to implement the power system emission factor impact assessment method provided in the embodiments of the present disclosure.

[0164] The computer program executes the above functions defined in the system / device of the embodiment of the present disclosure when the processor 601 executes the computer program. According to the embodiment of the present disclosure, the system, device, module, unit, etc. described above can be implemented by a computer program module.

[0165] In one embodiment, the computer program may be stored on a tangible storage medium such as an optical storage device or a magnetic storage device. In another embodiment, the computer program may be transmitted and distributed in the form of a signal on a network medium, downloaded and installed via the communication portion 609, and / or installed from a removable medium 611. The program code contained in the computer program may be transmitted using any appropriate network medium, including but not limited to wireless, wired, or any suitable combination thereof.

[0166] In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 609, and / or installed from a removable medium 611. When the computer program is executed by the processor 601, the above-described functions defined in the system of the embodiment of the present disclosure are performed. According to the embodiment of the present disclosure, the systems, devices, means, modules, units, etc. described above can be implemented by computer program modules.

[0167] According to an embodiment of the present disclosure, the program code for executing the computer program provided by the embodiment of the present disclosure can be written in any combination of one or more programming languages. Specifically, these computer programs can be implemented using high-level procedural and / or object-oriented programming languages, and / or assembly / machine languages. Programming languages ​​include, but are not limited to, languages ​​such as Java, C++, Python, "C" or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (for example, using an Internet service provider to connect via the Internet).

[0168] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment, or a part of code, and the above-mentioned module, program segment, or a part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0169] Those skilled in the art will appreciate that the features described in the various embodiments of the present disclosure may be combined and / or coupled in various ways, even if such combinations or couplings are not explicitly described in the present disclosure. In particular, the features described in the various embodiments of the present disclosure may be combined and / or coupled in various ways without departing from the spirit and teachings of the present disclosure. All such combinations and / or couplings fall within the scope of the present disclosure.

[0170] The above describes the embodiments of the present disclosure. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be advantageously used in combination. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A method for evaluating the impact of power system emission factors, characterized in that: The method comprises: determining, based on current power generation carbon emissions and current power transmission amounts of each of the multiple regions, current assessment data for each of the multiple regions, wherein the current power transmission amount represents a power transmission situation between the multiple regions under a current scenario, and the current assessment data represents a degree to which carbon emissions of the multiple regions are affected by power transmission under the current scenario; constructing a current evaluation matrix based on the current evaluation data and the current power transmission amount of each of the plurality of areas; Based on the power transmission constraints between the current scenario and the future scenario, and according to the current evaluation matrix and the current power transmission amount, predict a target power transmission amount in the future scenario; determining target assessment data for each of the plurality of regions under the future scenario based on the target power generation emission and the target power transmission volume of each of the plurality of regions; An evaluation result of the impact of change information on the emission factor of the power system of the region is determined based on the current evaluation data and the target evaluation data, wherein the change information characterizes the difference between the future scenario and the current scenario under the power transmission constraint condition.

2. The method according to claim 1, characterized in that The constructing a current evaluation matrix based on the current evaluation data and the current power transmission amount of each of the plurality of areas includes: determining, from the plurality of regions, a target region that meets a preset impact condition based on the respective current evaluation data of the plurality of regions; A current evaluation matrix is ​​constructed based on the current evaluation data and the target current element position of the current power transmission amount of the target area in the current power transmission matrix, wherein the current power transmission matrix includes multiple current elements, and the multiple current elements represent the current power transmission amount of each of the multiple areas.

3. The method according to claim 2, characterized in that The constructing a current evaluation matrix according to the current evaluation data and a matrix position of the current power transmission amount of the target area in the current power transmission matrix includes: determining quantitative parameters based on the current assessment data and the power system emission factors for the region; determining a target initial element position from an initial evaluation matrix according to the target current element position of the current power transfer amount in the current power transfer matrix, wherein the initial evaluation matrix and the current power transfer matrix have the same number of rows and columns; Update the target initial element at the target initial element position in the initial evaluation matrix according to the current evaluation data; The other elements in the initial evaluation matrix except the target initial element are updated to preset element values ​​to obtain the current evaluation matrix.

4. The method according to claim 3, characterized in that The preset influencing condition includes that the quantization parameter of the region is within a preset value range, and the preset value range is determined according to the number of the regions and a plurality of the current evaluation data.

5. The method according to claim 2, characterized in that The predicting, based on the power transmission constraint conditions between the current scenario and the future scenario, and according to the current evaluation matrix and the current power transmission amount, to obtain a target power transmission amount in the future scenario, includes: A target power transfer matrix satisfying the power transfer constraint condition is determined based on the current evaluation matrix, the adjustment coefficient, and the current power transfer matrix, wherein the target power transfer matrix includes a plurality of future elements, and the future elements represent the target power transfer amounts between the plurality of the regions under the future scenario.

6. The method according to claim 1, wherein The determining of current assessment data of each of the plurality of regions based on the current power generation carbon emissions and current power transmission amounts of each of the plurality of regions includes: Calculating a power system emission factor for the region based on the current power generation carbon emissions, the total power generation in the region, and the current power transmission volume; The current assessment data for the region is determined based on the power system emission factor.

7. The method according to claim 6, characterized in that Determining the current assessment data of the region based on the power system emission factor includes: Calculating the power generation carbon emission factor of the region based on the power system emission factor and the total power generation of each of the plurality of regions; The current assessment data for the region is determined based on the power system emission factor and the power generation carbon emission factor for the region.

8. The method according to any one of claims 1 to 7, characterized in that The power transmission constraint condition includes: the power transmission structure of the plurality of the regions remains unchanged or the total amount of power transmission between the plurality of the regions remains unchanged.

9. The method according to any one of claims 1 to 7, characterized in that The impact assessment result includes the degree of impact of the change information on the emission factor of the power system in the area.

10. A device for evaluating the impact of power system emission factors, characterized in that: The device comprises: a first determining module, configured to determine current assessment data for each of the plurality of regions based on current power generation carbon emissions and current power transmission volumes of each of the plurality of regions, wherein the current power transmission volumes represent power transmission conditions between the plurality of regions in the current year, and the current assessment data represent the extent to which carbon emissions of the plurality of regions are affected by power transmission under the current scenario; a construction module, configured to construct a current evaluation matrix based on the current evaluation data and the current power transmission amount of each of the plurality of areas; a prediction module, configured to predict a target power transfer amount in the future scenario based on the power transfer constraints between the current scenario and the future scenario, according to the current evaluation matrix and the current power transfer amount; A second determining module is configured to determine target assessment data for each of the plurality of regions under the future scenario based on the target power generation and emission amounts and the target power transmission amounts of each of the plurality of regions; The third determination module is used to determine the impact evaluation result of the change information on the emission factor of the power system of the region based on the current evaluation data and the target evaluation data, wherein the change information represents the difference between the future scenario and the current scenario under the power transmission constraint condition.

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