A power transmission and transformation system carbon emission calculation method, system and device

Abstract

The application discloses a power transmission and transformation system carbon emission calculation method, system and equipment, relates to the field of power system carbon emission monitoring, and comprises the following steps: collecting power transmission and transformation system construction and operation basic data; calculating the transformer full life cycle energy consumption based on the transformer rated no-load loss and the transformer rated load loss; calculating the personnel activity carbon emission, the building material carbon emission, the construction machinery carbon emission and the transformer operation carbon emission; using the analytic hierarchy process to sort the importance of the four indexes and calculate the initial weight; introducing a multi-dimensional correction coefficient to dynamically correct the initial weight, weighting and fusing the corrected weight, the four indexes and the transformer operation carbon emission, and outputting the power transmission and transformation system carbon emission prediction value. The application realizes accurate calculation of the power transmission and transformation system carbon emission in all scenarios and full life cycles, and overcomes the defects of fragmentation, static and large deviation in the prior art.

Description

Technical Field

[0001] This application relates to the field of carbon emission monitoring in power systems, and in particular to a method, system and equipment for calculating carbon emissions from power transmission and transformation systems. Background Technology

[0002] Against the backdrop of the comprehensive advancement of the "dual-carbon" strategy, the power transmission and transformation system, as the core hub for power transmission, distribution, and conversion, faces crucial challenges in its life-cycle carbon emission management, which is a key aspect of the power grid's low-carbon transformation. Accurate, comprehensive, and systematic carbon emission measurement is a core prerequisite for achieving carbon footprint tracing, low-carbon solution comparison, carbon reduction benefit quantification, and refined carbon quota management.

[0003] However, current technologies for carbon emission measurement in power transmission and transformation systems still follow the traditional single-dimensional accounting approach of power engineering, exhibiting fragmented, localized, and static characteristics. Mainstream measurement methods often focus on single aspects, such as calculating energy consumption during transformer operation, energy consumption during the production and construction of building materials for substations, or fuel consumption of machinery during the construction period. Some technologies even rely solely on industry experience coefficients or single carbon emission factors for rough estimations, failing to form a unified carbon accounting framework covering the entire process and all scenarios of power transmission and transformation engineering.

[0004] The core reason for the limitations of existing technologies lies in the fact that carbon emission accounting for power equipment, building engineering, and construction energy consumption belongs to different standard systems, lacking a unified accounting logic adapted to the entire life cycle of power transmission and transformation systems. Simultaneously, power transmission and transformation projects span multiple departments, including design, construction, operation and maintenance, and materials, with data on personnel man-days, building material consumption, machinery shifts, equipment wear and tear, and operating conditions being independent. Existing technologies lack the ability to integrate and couple cross-stage data. Furthermore, traditional models commonly employ simplified algorithms for single stages to reduce computational complexity, failing to incorporate transformer life-cycle loss data. This results in significant deviations in carbon emission results and a lack of scientific dynamic correction capabilities, making it difficult to support low-carbon technology selection, retrofit optimization, and power grid low-carbon decision-making. Consequently, they can no longer meet the practical needs of refined carbon management in power transmission and transformation systems under the "dual carbon" objective. Summary of the Invention

[0005] The purpose of this application is to provide a method, system and equipment for calculating carbon emissions of power transmission and transformation systems, in order to solve the problems of fragmentation, staticity, serious omissions and lack of dynamic correction capabilities of existing calculation technologies, and to achieve accurate quantification of carbon emissions and scientific assessment of carbon reduction benefits throughout the entire life cycle and all scenarios of power transmission and transformation systems.

[0006] To achieve the above objectives, this application provides the following solution: Firstly, this application provides a method for calculating carbon emissions from power transmission and transformation systems, including: Collect basic data on the construction and operation of power transmission and transformation systems; the basic data includes construction process engineering quantity list, labor man-day consumption quota, building material consumption and transportation distance, construction machinery shift consumption and energy type, transformer rated no-load loss, transformer rated load loss, carbon emission factor and carbon trading price data. The energy consumption of the transformer throughout its entire life cycle is calculated based on the transformer's rated no-load loss and rated load loss. The carbon emissions from personnel activities are calculated based on the bill of quantities for the aforementioned construction process and the quota for man-day consumption. The carbon emissions of building materials are calculated based on the consumption and transportation distance of the building materials; the carbon emissions of building materials include: carbon emissions during the production and transportation of building materials, carbon emissions during the construction phase, and carbon emissions during the operation phase of building materials. The carbon emissions of construction machinery are calculated based on the consumption of construction machinery shifts and energy types. The carbon emissions of the transformer during operation are calculated based on the energy consumption of the transformer throughout its entire life cycle. The analytic hierarchy process (AHP) was used to rank the carbon emissions from human activities, building materials, construction machinery, and transformer operation, and to calculate their initial weights. A multi-dimensional correction coefficient is introduced to dynamically correct the initial weights, and the corrected weights are then weighted and integrated with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation to output the predicted carbon emissions of the power transmission and transformation system.

[0007] Optionally, the energy consumption of the transformer throughout its entire life cycle is calculated based on the transformer's rated no-load loss and rated load loss, specifically using the following formula: ; in, This indicates the energy consumption over the entire life cycle of the transformer. This indicates the transformer's rated no-load loss. This indicates the number of hours the transformer is energized per year. This indicates the rated load loss of the transformer. This indicates the number of hours of maximum annual load loss for the transformer. Indicates the average load rate of the transformer. This indicates the economic service life of the transformer.

[0008] Optionally, the carbon emissions from personnel activities calculated based on the construction process bill of quantities and the labor man-day consumption quota specifically adopt the following formula: ; in, Indicates carbon emissions from human activities. Indicates the first The amount of work involved in each construction technique. express, Indicates artificial carbon emission factors. Indicates the first Various construction techniques This indicates the total number of construction techniques. .

[0009] Optionally, the carbon emissions of building materials can be calculated based on the consumption and transportation distance using the following formula: ; in, This indicates the carbon emissions during the production and transportation of building materials. Indicates the first The consumption of major building materials, Indicates the first Carbon emission factors of major building materials Indicates the first Average transportation distance for various building materials Indicates the first The carbon emission factor per unit mass of building materials transported over a given distance, where A represents the building area. This represents the total number of building materials. ; in, This indicates the carbon emissions during the building construction phase. Indicates the building construction stage k Total energy consumption Indicates the first k Carbon emission factors of energy-like substances r This indicates the total number of different types of energy used during the building construction phase; ; in, This indicates the carbon emissions during the building's operation phase. Indicates the building number Energy consumption Indicates the first Carbon emission factors of energy-like substances This indicates the annual carbon reduction of the building green space carbon sink system. Indicates the building's design life.

[0010] Optionally, the carbon emissions of construction machinery are calculated based on the machine consumption and energy type using the following formula: ; in, This indicates the carbon emissions of construction machinery. Indicates the first The amount of work involved in each construction technique. This refers to the construction process used to complete a unit of work. The number of machine shifts consumed. This indicates the amount of energy consumed per unit of machine shift. This indicates the carbon emission factor of the energy used by the machinery.

[0011] Optionally, the carbon emissions of the transformer during operation are calculated based on the transformer's energy consumption over its entire life cycle using the following formula: ; in, This indicates the carbon emissions from transformer operation. This indicates the energy consumption over the entire life cycle of the transformer. This indicates the annual carbon emission factor of electricity in the province where the transformer is located.

[0012] Optionally, the step of using the analytic hierarchy process (AHP) to rank the importance of carbon emissions from human activities, building materials, construction machinery, and transformer operation, and calculating their initial weights, specifically includes the following steps: The carbon emissions from personnel activities, building materials, construction machinery, and transformer operation were scored to obtain the scoring results. Construct a judgment matrix based on the scoring results; Calculate the maximum eigenvalue and corresponding eigenvector of the judgment matrix; Calculate the consistency index based on the maximum eigenvalue and the corresponding eigenvector; Calculate the consistency ratio based on the aforementioned consistency index; Determine whether the consistency ratio is less than 0.1. If so, the consistency test of the judgment matrix is ​​considered to have passed, and the initial weights are output. If not, the judgment matrix is ​​reconstructed until the consistency check passes.

[0013] Optionally, a multi-dimensional correction coefficient is introduced to dynamically correct the initial weights, and the corrected weights are then weighted and fused with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation. The specific formula for outputting the predicted carbon emissions of the power transmission and transformation system is as follows: in, This represents the predicted carbon emissions from the power transmission and transformation system. This represents the corrected initial weights. Indicates the voltage level correction factor. This represents the life-cycle correction factor. This represents the regional carbon emission factor correction coefficient. This represents the consistency deviation correction factor. Indicates carbon emissions from human activities. This indicates the carbon emissions during the production and transportation of building materials. This indicates the carbon emissions during the building construction phase. This indicates the carbon emissions during the building's operation phase. This indicates the carbon emissions of construction machinery. This indicates the carbon emissions from transformer operation.

[0014] Secondly, this application provides a carbon emission measurement device for power transmission and transformation systems, comprising: The data acquisition module is used to collect basic data on the construction and operation of power transmission and transformation systems. The basic data includes construction process engineering quantity list, labor man-day consumption quota, building material consumption and transportation distance, construction machinery shift consumption and energy type, transformer rated no-load loss, transformer rated load loss, carbon emission factor and carbon trading price data. The transformer life cycle energy consumption calculation module is used to calculate the transformer life cycle energy consumption based on the transformer's rated no-load loss and rated load loss. The carbon emission calculation module for personnel activities is used to calculate the carbon emission of personnel activities based on the bill of quantities for the construction process and the quota for man-day consumption. The building material carbon emission calculation module is used to calculate the building material carbon emission based on the building material consumption and transportation distance; the building material carbon emission includes: carbon emission during the building material production and transportation stage, carbon emission during the building construction stage, and carbon emission during the building material operation stage; The carbon emission calculation module for construction machinery is used to calculate the carbon emission of construction machinery based on the machine consumption and energy type of the construction machinery. The transformer operation carbon emission calculation module is used to calculate the transformer operation carbon emission based on the transformer's energy consumption throughout its entire life cycle. The initial weight calculation module is used to rank the importance and calculate the initial weights of carbon emissions from human activities, building materials, construction machinery, and transformer operation using the analytic hierarchy process. The substation carbon emission prediction calculation module is used to introduce multi-dimensional correction coefficients to dynamically correct the initial weights, and then weight and fuse the corrected weights with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation to output the predicted carbon emissions of the power transmission and transformation system.

[0015] Thirdly, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the carbon emission calculation method for power transmission and transformation systems described in any one of the above.

[0016] According to the specific embodiments provided in this application, this application has the following technical effects: This application provides a method, system, and equipment for calculating carbon emissions from power transmission and transformation systems. By employing multi-dimensional, itemized calculation methods covering personnel activities, building materials (production-transportation-construction-operation), construction machinery, and the entire lifecycle of transformers, and integrating the carbon emissions of each item into a unified calculation framework, it overcomes the fragmented and localized accounting deficiencies of existing technologies. It completely breaks down data barriers across design, construction, operation and maintenance, and materials departments, eliminating omissions and underestimations of carbon emissions in core scenarios, thus accurately and comprehensively reflecting the overall carbon emission level of the power transmission and transformation system throughout its entire lifecycle. By adopting a full lifecycle energy consumption prediction model (Ceq) based on transformer rated no-load loss, rated load loss, annual maximum load loss hours, annual energized hours, economic service life, and average load rate, it effectively transforms static nameplate parameters of equipment into cumulative energy consumption values ​​over a dynamic operating cycle. This effectively avoids the result bias caused by traditional simplified algorithms or empirical coefficient estimations in single-stage processes, significantly improving the accuracy of carbon emission calculations for core power equipment operation, and providing a reliable energy consumption benchmark for subsequent carbon trading price calculations and carbon reduction benefit comparisons. By employing the Analytic Hierarchy Process (AHP), expert pairwise scoring is conducted on the four major carbon emission sub-indicators to construct a judgment matrix and conduct consistency checks to obtain initial weights. Simultaneously, voltage level correction coefficients, life cycle correction coefficients, regional carbon emission factor correction coefficients, and consistency deviation correction coefficients are introduced for multi-factor dynamic correction. This approach overcomes the rigidity of traditional static weight allocation, enabling it to adaptively adapt to the characteristics of different voltage level projects, annual carbon factor fluctuations in regional power grids, and differences in equipment lifespan. This ensures that the weight allocation is both statistically valid and engineering-reasonable, further enhancing the scientific rigor, stability, and generalization ability of the total carbon emission forecast. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart illustrating a method for calculating carbon emissions from a power transmission and transformation system, provided as an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In one exemplary embodiment, such as Figure 1 As shown, a method for calculating carbon emissions from a power transmission and transformation system is provided. This method is executed by computer equipment, specifically by a terminal or server alone, or by both a terminal and a server. In this embodiment, the method includes the following steps: Step 101: Collect basic data on the construction and operation of the power transmission and transformation system; the basic data includes the bill of quantities for construction process engineering, quota of labor man-days, consumption of building materials and transportation distance, consumption of construction machinery shifts and energy type, rated no-load loss of transformers, rated load loss of transformers, carbon emission factors and carbon trading price data.

[0022] Specifically, the above data is collected through data processing equipment. In this embodiment, the data processing equipment is the core hardware carrier for realizing the full-process calculation of carbon emissions in the power transmission and transformation system. Specifically, it refers to an embedded industrial computer, a power grid-specific industrial control terminal, or a background computing server. It is used to complete basic data reception, storage, formula calculation, AHP weight calculation, multi-factor dynamic correction, and total carbon emission integrated calculation. It is the core execution device that connects data acquisition and result output.

[0023] Step 102: Calculate the transformer's total life-cycle energy consumption based on the transformer's rated no-load loss and rated load loss.

[0024] The formula is as follows: ; in, This indicates the energy consumption over the entire life cycle of the transformer. This indicates the transformer's rated no-load loss. This indicates the number of hours the transformer is energized per year. This indicates the rated load loss of the transformer. This indicates the number of hours of maximum annual load loss for the transformer. Indicates the average load rate of the transformer. This indicates the economic service life of the transformer.

[0025] Step 103: Calculate the carbon emissions from personnel activities based on the bill of quantities for the construction process and the quota for man-day consumption.

[0026] The carbon emission calculation for personnel activities in power transmission and transformation systems refers to the carbon emissions generated by production workers during the construction phase, transportation workers during the construction and transportation phase, and construction workers during the construction phase. Based on the man-day consumption data for each sub-item provided in the bill of quantities and quotas, the total man-days consumed by the power transmission and transformation system are summarized. Combined with the human carbon emission factor, the carbon emissions generated by on-site worker activities during the construction process can be obtained, which can be expressed by the formula: ; in, Indicates carbon emissions from human activities. Indicates the first The amount of work involved in each construction technique. express, Indicates artificial carbon emission factors. Indicates the first Various construction techniques , This represents the total number of construction processes, i.e., the total number of different construction procedures / processes involved in this calculation. It is a positive integer and corresponds to the upper limit of the number of construction process items that need to be counted in the calculation of artificial carbon emissions.

[0027] Step 104: Calculate the carbon emissions of building materials based on the consumption and transportation distance of the building materials; the carbon emissions of building materials include: carbon emissions during the production and transportation of building materials, carbon emissions during the construction phase, and carbon emissions during the operation phase of building materials.

[0028] Carbon emissions during the production and transportation of building materials are calculated using the following formula: ; in, This indicates the carbon emissions during the production and transportation of building materials. Indicates the first The consumption of major building materials, Indicates the first Carbon emission factors of major building materials Indicates the first Average transportation distance for various building materials Indicates the first The carbon emission factor per unit mass of building materials transported over a given distance, where A represents the building area. This represents the total number of building materials. Carbon emissions during the building construction phase are calculated using the following formula: ; in, This indicates the carbon emissions during the building construction phase. Indicates the building construction stage k Total energy consumption Indicates the first k Carbon emission factors of energy-like substances r This indicates the total number of different types of energy used during the building construction phase; Carbon emissions during the operation of building materials are calculated using the following formula: ; in, This indicates the carbon emissions during the building's operation phase. Indicates the building number Energy consumption Indicates the first Carbon emission factors of energy-like substances This indicates the annual carbon reduction of the building green space carbon sink system. Indicates the building's design life.

[0029] Step 105: Calculate the carbon emissions of the construction machinery based on the construction machinery shift consumption and energy type.

[0030] Carbon footprint of power transmission and transformation projects The main sources are the fuel and electricity consumption of various mechanical equipment used during construction. This portion of physical energy consumption and carbon emissions can be calculated using the quotas for project volume and construction machinery usage per shift. ; in, This indicates the carbon emissions of construction machinery. Indicates the first The amount of work involved in each construction technique. This refers to the construction process used to complete a unit of work. The number of machine shifts consumed. This indicates the amount of energy consumed per unit of machine shift. This indicates the carbon emission factor of the energy used by the machinery.

[0031] Step 106: Calculate the carbon emissions of the transformer during operation based on the energy consumption of the transformer throughout its entire life cycle.

[0032] The formula is as follows: in, This indicates the carbon emissions from transformer operation. This indicates the energy consumption over the entire life cycle of the transformer. This indicates the annual carbon emission factor of electricity in the province where the transformer is located.

[0033] Step 107: Use the analytic hierarchy process (AHP) to rank the carbon emissions from human activities, building materials, construction machinery, and transformer operation, and calculate their initial weights.

[0034] The specific steps are as follows: ① Invite experts to score, that is, invite multiple experts to score various indicators of personnel activities, building materials, construction machinery, and power equipment.

[0035] ② Construct a judgment matrix based on the above scoring results. The judgment matrix C is m An m-matrix is ​​constructed, where m represents the number of sub-targets. A matrix C is constructed to compare the importance of different elements, and its definition is: Each element A in the matrix ij The comparison of the importance between factor i and factor j is shown, and its value is an integer between 1 and 9, the meaning of which is shown in Table 1.

[0036] Table 1. Level Scale Method and its Meaning

[0037] ③ Calculate the weight vector Perform a hierarchical single sort. Where λ max To determine the largest eigenvalue of a matrix, ω i It is the eigenvector of the judgment matrix.

[0038] ④ Consistency check, calculate consistency index and consistency ratio The range of RI values ​​is shown in Table 2. When CR < 0.1, the consistency test of the judgment matrix is ​​considered to be passed. If the consistency test fails, the judgment matrix needs to be reconstructed.

[0039] Table 2. Average Random Consistency Index (RI)

[0040] ⑤ If the consistency check is satisfied, then perform a hierarchical overall sort.

[0041] ⑥ Consistency check, the method is the same as step ④ above. If the consistency check is not met, continue to adjust the judgment matrix.

[0042] ⑦ If the consistency test is met, the final ranking of the four major carbon emission sub-indicators is completed. Among them, the higher the weight of the sub-indicator, the greater its impact on the total carbon emissions of the power transmission and transformation system. The ranking result directly corresponds to the weight allocation in the total carbon emission calculation formula, providing a scientific basis for the subsequent weighted integration of total carbon emissions, and can also support the carbon reduction decision of prioritizing the control of high-weight sub-indicators in low-carbon optimization.

[0043] ⑧ Output the initial weights ω1, ω2, ω3, ω4.

[0044] Step 108: Introduce multi-dimensional correction coefficients to dynamically correct the initial weights, and then weight and fuse the corrected weights with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation to output the predicted carbon emissions of the power transmission and transformation system.

[0045] The specific formula for correcting the initial weights by introducing a power transmission and transformation correction factor is as follows: ; in, This is a voltage level correction factor, assigned according to the voltage level classification of power transmission and transformation projects; This is the life-cycle correction factor, used for material / equipment life-cycle differentiation correction. This is the regional carbon emission factor correction coefficient, which is dynamically adjusted according to the annual electricity carbon emission factor of the provincial power grid where the project is located, and is taken from the national carbon emission accounting guidelines. The consistency deviation correction coefficient is linearly adjusted with the AHP consistency ratio CR to ensure weight stability.

[0046] The range of values ​​for each correction factor is as follows: ; The final expression for the predicted carbon emissions from power transmission and transformation projects is: ; in, This represents the predicted carbon emissions from the power transmission and transformation system. This represents the corrected initial weights. Indicates the voltage level correction factor. This represents the life-cycle correction factor. This represents the regional carbon emission factor correction coefficient. This represents the consistency deviation correction factor. Indicates carbon emissions from human activities. This indicates the carbon emissions during the production and transportation of building materials. This indicates the carbon emissions during the building construction phase. This indicates the carbon emissions during the building's operation phase. This indicates the carbon emissions of construction machinery. Indicates the carbon emissions from transformer operation Finally, the carbon emission data from each dimension and the total carbon emission data are integrated to form a standardized carbon emission calculation report for the entire life cycle of power transmission and transformation systems, which is then output in a visual format to provide direct basis for low-carbon construction decisions.

[0047] Based on the same inventive concept, this application also provides a carbon emission calculation device for power transmission and transformation systems to implement the aforementioned method for calculating carbon emissions from power transmission and transformation systems. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the carbon emission calculation device for power transmission and transformation systems provided below can be found in the limitations of the carbon emission calculation method for power transmission and transformation systems described above, and will not be repeated here.

[0048] In one exemplary embodiment, a carbon emission measurement device for a power transmission and transformation system is provided, comprising: The data acquisition module is used to collect basic data on the construction and operation of power transmission and transformation systems. The basic data includes construction process engineering quantity list, labor man-day consumption quota, building material consumption and transportation distance, construction machinery shift consumption and energy type, transformer rated no-load loss, transformer rated load loss, carbon emission factor and carbon trading price data. The transformer life cycle energy consumption calculation module is used to calculate the transformer life cycle energy consumption based on the transformer's rated no-load loss and rated load loss. The carbon emission calculation module for personnel activities is used to calculate the carbon emission of personnel activities based on the bill of quantities for the construction process and the quota for man-day consumption. The building material carbon emission calculation module is used to calculate the building material carbon emission based on the building material consumption and transportation distance; the building material carbon emission includes: carbon emission during the building material production and transportation stage, carbon emission during the building construction stage, and carbon emission during the building material operation stage; The carbon emission calculation module for construction machinery is used to calculate the carbon emission of construction machinery based on the machine consumption and energy type of the construction machinery. The transformer operation carbon emission calculation module is used to calculate the transformer operation carbon emission based on the transformer's energy consumption throughout its entire life cycle. The initial weight calculation module is used to rank the importance and calculate the initial weights of carbon emissions from human activities, building materials, construction machinery, and transformer operation using the analytic hierarchy process. The substation carbon emission prediction calculation module is used to introduce multi-dimensional correction coefficients to dynamically correct the initial weights, and then weight and fuse the corrected weights with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation to output the predicted carbon emissions of the power transmission and transformation system.

[0049] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal, and its internal structure diagram may be as follows. Figure 2 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores carbon emission calculation data for power transmission and transformation systems. The I / O interfaces are used for information exchange between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for calculating carbon emissions from power transmission and transformation systems.

[0050] Those skilled in the art will understand that Figure 2 The structures shown are merely block diagrams of some structures related to the present application and do not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than shown in the figures, or combine certain components, or have different component arrangements. In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0051] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0052] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0053] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0054] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0055] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for calculating carbon emissions of a power transmission system, characterized in that, The method for calculating carbon emissions from power transmission and transformation systems includes: Collect basic data on the construction and operation of power transmission and transformation systems; the basic data includes construction process engineering quantity list, labor man-day consumption quota, building material consumption and transportation distance, construction machinery shift consumption and energy type, transformer rated no-load loss, transformer rated load loss, carbon emission factor and carbon trading price data. The energy consumption of the transformer throughout its entire life cycle is calculated based on the transformer's rated no-load loss and rated load loss. The carbon emissions from personnel activities are calculated based on the bill of quantities for the aforementioned construction process and the quota for man-day consumption. The carbon emissions of building materials are calculated based on the consumption and transportation distance of the building materials; the carbon emissions of building materials include: carbon emissions during the production and transportation of building materials, carbon emissions during the construction phase, and carbon emissions during the operation phase of building materials. The carbon emissions of construction machinery are calculated based on the consumption of construction machinery shifts and energy types. The carbon emissions of the transformer during operation are calculated based on the energy consumption of the transformer throughout its entire life cycle. The analytic hierarchy process (AHP) was used to rank the carbon emissions from human activities, building materials, construction machinery, and transformer operation, and to calculate their initial weights. A multi-dimensional correction coefficient is introduced to dynamically correct the initial weights, and the corrected weights are then weighted and integrated with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation to output the predicted carbon emissions of the power transmission and transformation system.

2. The power transmission system carbon emission estimation method according to claim 1, characterized by, The energy consumption of the transformer throughout its entire life cycle is calculated based on the transformer's rated no-load loss and rated load loss, using the following formula: ； in, This indicates the energy consumption over the entire life cycle of the transformer. This indicates the transformer's rated no-load loss. This indicates the number of hours the transformer is energized per year. This indicates the rated load loss of the transformer. This indicates the number of hours of maximum annual load loss for the transformer. This indicates the average load factor of the transformer. This indicates the economic service life of the transformer.

3. The power transmission system carbon emission estimation method according to claim 1, characterized by, The carbon emissions from personnel activities calculated based on the construction process bill of quantities and the labor man-day consumption quota are specifically obtained using the following formula: ； in, Indicates carbon emissions from human activities. Indicates the first The amount of work involved in each construction technique. express, Indicates artificial carbon emission factors. Indicates the first Various construction techniques This indicates the total number of construction techniques. .

4. The method for calculating carbon emissions from power transmission and transformation systems according to claim 1, characterized in that, The carbon emissions of building materials are calculated based on the consumption and transportation distance using the following formula: ； in, This indicates the carbon emissions during the production and transportation of building materials. Indicates the first The consumption of major building materials, Indicates the first Carbon emission factors of major building materials Indicates the first Average transportation distance for various building materials Indicates the first The carbon emission factor per unit mass of building materials transported over a given distance, where A represents the building area. Total number of building materials; ； in, This indicates the carbon emissions during the building construction phase. Indicates the building construction stage k Total energy consumption Indicates the first k Carbon emission factors of energy-like substances r This indicates the total number of different types of energy used during the building construction phase; ； in, This indicates the carbon emissions during the building's operation phase. Indicates the building number Energy consumption Indicates the first Carbon emission factors of energy-like substances This indicates the annual carbon reduction of the building green space carbon sink system. Indicates the building's design life.

5. The method for calculating carbon emissions from power transmission and transformation systems according to claim 1, characterized in that, The carbon emissions of construction machinery are calculated based on the machine consumption and energy type using the following formula: ； in, This indicates the carbon emissions of construction machinery. Indicates the first The amount of work involved in each construction technique. This refers to the construction process used to complete a unit of work. The number of machine shifts consumed. This indicates the amount of energy consumed per unit of machine shift. This indicates the carbon emission factor of the energy used by the machinery.

6. The method for calculating carbon emissions from power transmission and transformation systems according to claim 1, characterized in that, The carbon emissions from transformer operation are calculated based on the transformer's energy consumption over its entire life cycle using the following formula: ； in, This indicates the carbon emissions from transformer operation. This indicates the energy consumption over the entire life cycle of the transformer. This indicates the annual carbon emission factor of electricity in the province where the transformer is located.

7. The method for calculating carbon emissions from power transmission and transformation systems according to claim 1, characterized in that, The method of using the analytic hierarchy process (AHP) to rank the importance of carbon emissions from human activities, building materials, construction machinery, and transformer operation, and to calculate their initial weights, specifically includes the following steps: The carbon emissions from personnel activities, building materials, construction machinery, and transformer operation were scored to obtain the scoring results. Construct a judgment matrix based on the scoring results; Calculate the maximum eigenvalue and corresponding eigenvector of the judgment matrix; Calculate the consistency index based on the maximum eigenvalue and the corresponding eigenvector; Calculate the consistency ratio based on the aforementioned consistency index; Determine whether the consistency ratio is less than 0.

1. If so, the consistency test of the judgment matrix is ​​considered to have passed, and the initial weights are output. If not, the judgment matrix is ​​reconstructed until the consistency check passes.

8. The method for calculating carbon emissions from power transmission and transformation systems according to claim 1, characterized in that, A multi-dimensional correction coefficient is introduced to dynamically correct the initial weights. The corrected weights are then weighted and fused with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation. The specific formula for outputting the predicted carbon emissions of the power transmission and transformation system is as follows: in, This represents the predicted carbon emissions from the power transmission and transformation system. This represents the corrected initial weights. Indicates the voltage level correction factor. This represents the life-cycle correction factor. This represents the regional carbon emission factor correction coefficient. This represents the consistency deviation correction factor. This represents the carbon emissions from human activities. This indicates the carbon emissions during the production and transportation of building materials. This indicates the carbon emissions during the building construction phase. This indicates the carbon emissions during the building's operation phase. This indicates the carbon emissions of construction machinery. This indicates the carbon emissions from transformer operation.

9. A carbon emission measuring device for a power transmission and transformation system, characterized in that, The carbon emission measurement device for the power transmission and transformation system includes: The data acquisition module is used to collect basic data on the construction and operation of power transmission and transformation systems. The basic data includes construction process engineering quantity list, labor man-day consumption quota, building material consumption and transportation distance, construction machinery shift consumption and energy type, transformer rated no-load loss, transformer rated load loss, carbon emission factor and carbon trading price data. The transformer life cycle energy consumption calculation module is used to calculate the transformer life cycle energy consumption based on the transformer's rated no-load loss and rated load loss. The carbon emission calculation module for personnel activities is used to calculate the carbon emission of personnel activities based on the bill of quantities for the construction process and the quota for man-day consumption. The building material carbon emission calculation module is used to calculate the building material carbon emission based on the building material consumption and transportation distance; the building material carbon emission includes: carbon emission during the building material production and transportation stage, carbon emission during the building construction stage, and carbon emission during the building material operation stage; The carbon emission calculation module for construction machinery is used to calculate the carbon emission of construction machinery based on the machine consumption and energy type of the construction machinery. The transformer operation carbon emission calculation module is used to calculate the transformer operation carbon emission based on the transformer's energy consumption throughout its entire life cycle. The initial weight calculation module is used to rank the importance and calculate the initial weights of carbon emissions from human activities, building materials, construction machinery, and transformer operation using the analytic hierarchy process. The substation carbon emission prediction calculation module is used to introduce multi-dimensional correction coefficients to dynamically correct the initial weights, and then weight and fuse the corrected weights with the carbon emissions from personnel activities, building materials, construction machinery, and transformer operation to output the predicted carbon emissions of the power transmission and transformation system.

10. A computer device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor executes the computer program to implement the carbon emission calculation method for a power transmission and transformation system as described in any one of claims 1-8.

Images