Quality detection and carbon emission accounting method for 10kV distribution transformer

Abstract

The invention discloses a 10kV distribution transformer quality detection carbon emission accounting method, and belongs to the field of carbon emission calculation. Comprises: determining an accounting boundary; compiling an accounting list; configuring a calculation method; locking calculation parameters; emission accounting is carried out; and a set of measurement and calculation model is constructed to provide support for carbon emission accounting in a transformer quality detection link. According to the method, a standard carbon emission measuring and calculating method is constructed by going deep into a power grid material quality detection service link and taking 10kV oil-immersed distribution transformers of power grid materials as categories; for the whole process and the whole link of transformer detection, each emission source of a detection item is identified, an emission accounting list is established, for each emission source in the list, a calculation method is configured, basic data required by calculation is locked, and a carbon emission measuring and calculating method and a model for electric power material quality detection are formed. And a scientific and clear quality detection process emission calculation method is formed. The method can be widely applied to the field of prediction and accounting of the carbon emission in the power grid material category detection process.

Description

Technical Field

[0001] The present invention belongs to the field of carbon emission calculation, and in particular relates to a carbon emission calculation method for a 10kV distribution transformer quality inspection process. Background Art

[0002] Promoting green and low-carbon economic and social development is a key link in achieving high-quality development, and green and low-carbon development of the economy and society has become a development focus.

[0003] It is the primary task for power grid companies to understand the carbon emission levels of all business links in order to promote the green transformation of the power grid.

[0004] The supply chain is an important link in ensuring the construction of power grids. Material quality is one of the inherent safety factors of power grids. The volume of quality inspection business is huge, and a large number of inspection business activities generate a large amount of carbon emissions.

[0005] As one of the industries with the highest carbon emissions, the power industry has to build a green power supply chain as its important development direction. As an important checkpoint to ensure the safety of the power grid, the quality inspection link needs to conduct comprehensive sampling inspections on products entering the grid, which generates a large amount of carbon emissions. The quality inspection link is the main emission area in the entire operation of the power grid supply chain and is a key part of the system to carry out carbon emission measurement.

[0006] The invention patent with the authorization announcement date of 2022.11.29 and the authorization announcement number of CN 115150438 B discloses "a carbon footprint accounting method, device, equipment and storage medium", including: obtaining carbon emission key data, and generating watermark data of local equipment according to the carbon emission key data; the carbon emission key data includes: at least one of carbon emission data and watermark data of upper-layer equipment; the watermark data of local equipment is associated with the carbon emission key data and reported to the carbon cloud platform, so that the carbon cloud platform can determine at least one upstream and downstream equipment relationship chain of production activities, and the carbon footprint corresponding to the upstream and downstream equipment relationship chain. The technical solution of the embodiment of the present invention automatically reports the watermark data carrying equipment information and carbon emission key data to the carbon cloud platform through the detection device, so that the carbon cloud platform can quickly determine the upstream and downstream equipment relationship chain and accurately calculate the corresponding carbon footprint, thereby improving the efficiency and accuracy of calculating the carbon footprint corresponding to the upstream and downstream equipment relationship chain. Since its technical solution is based on the actual data of equipment carbon emissions and the upstream and downstream equipment relationship chain, it cannot be used to calculate carbon emissions in power material storage systems.

[0007] The invention patent with the authorization announcement date of 2023.01.20 and the authorization announcement number of CN 115236395 B discloses a "substation carbon emission measurement method, device, computer equipment and storage medium", and the method includes: collecting power data of each device in the substation and the detection quality of the harmful gas leaked by the substation; according to the power data of each device, obtaining the first carbon emissions generated by each device, and according to the detection quality, obtaining the second carbon emissions equivalent to the harmful gas; based on the first carbon emissions generated by each device and the second carbon emissions, obtaining the total carbon emissions of the substation. The adoption of this technical solution can realize the classification and accounting of the carbon emission components of the substation, so that accurate carbon emission reduction can be carried out later. However, it focuses on the monitoring of carbon emissions generated by each power equipment in operation, so it still cannot meet the needs of carbon emission measurement for material storage systems.

[0008] In order to meet the current carbon management requirements of power grid companies, it is urgent to establish a set of carbon emission accounting methods for the detection link, comprehensively understand the carbon emission composition of the entire detection process, and design a basic model for carbon emission accounting throughout the entire product detection process. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide a carbon emission accounting method for quality inspection of 10kV distribution transformers. It goes deep into the business link of power grid material quality inspection, takes the 10kV (oil-immersed) distribution transformer with large power grid material procurement scale as a pilot category, and constructs a standard carbon emission calculation method; facing the whole process and all links of transformer inspection, identifies each emission source of the inspection project, establishes an emission accounting list, configures the calculation method for each emission source in the list, locks the basic data required for calculation, and forms a carbon emission calculation method and model for power material quality inspection.

[0010] The technical solution of the present invention is to provide a method for calculating carbon emissions from quality inspection of a 10kV distribution transformer, which is characterized by comprising the following steps:

[0011] 1) Clarify accounting boundaries:

[0012] According to the 10kV transformer quality inspection business process, the specific inspection procedures and corresponding energy emissions are sorted out, including the carbon emissions generated by Class A, Class B, and Class C inspection activities, and the boundary range of carbon emission calculation in the power grid material inspection link is clarified, laying the foundation for the design of the entire emission calculation plan;

[0013] 2) Prepare accounting list:

[0014] After identifying the emission sources during the transformer inspection process, a list of emission calculations applicable to the inspection process is compiled based on the detailed and sorted emission source information;

[0015] 3)Configure calculation method:

[0016] According to the sorting of carbon emission sources in the quality inspection link, based on the emission calculation list, the emission factor method provided by IPCC is used as the calculation method. For each emission source of the inspection business, the applicable calculation formula is configured and the calculation parameters are determined to ensure that each emission source listed in the calculation list can be calculated;

[0017] 4) Lock calculation parameters:

[0018] According to the carbon emission calculation formula, two parameters for calculating carbon emissions, namely activity volume and emission factor, are locked;

[0019] 5) Carry out emission accounting:

[0020] By identifying the operating equipment of each inspection process in the quality inspection link of quality inspection carbon emission measurement, the information of all operating equipment including energy type, technical parameters, and operating efficiency parameters is mastered; then according to the 10kV transformer quality inspection emission calculation method, the energy emission calculation method of the quality inspection link and the corresponding data required for calculation are clarified, and the two-way combination is used to lock the data collection scope and specific content of each link;

[0021] 6) Build a calculation model to support carbon emission accounting in transformer quality inspection:

[0022] For the carbon emission calculation or measurement process of power grid material quality inspection, all inspection processes including emission calculation formulas are solidified, and the factors required for measurement, including calculation parameters and emission factors, are locked. A set of measurement models is constructed to provide support for carbon emission accounting in the transformer quality inspection link.

[0023] Specifically, the carbon emission accounting method for 10kV distribution transformer quality inspection goes deep into the power grid material quality inspection business link, sorts out and identifies the carbon emission sources in the quality inspection process of power grid enterprises, and takes the 10kV oil-immersed distribution transformers with large power grid material procurement scale as a pilot category to establish standard processes and scientific carbon emission calculation methods for calculating the carbon emissions of power grid enterprises' quality inspection business; for the entire process and all links of transformer inspection, identify each emission source of the inspection project, establish an emission accounting list, configure the calculation method for each emission source in the list, lock the basic data required for the calculation, and form a carbon emission calculation method and model for power material quality inspection.

[0024] Specifically, in step 2), based on the detection equipment and energy consumption types sorted out in each emission link, the parameter field of the rated power of the detection equipment and the data of the operation time required for the detection operation are added to form the detection business emission list of the 10kV transformer.

[0025] Furthermore, in step 3), the calculation formula of carbon emissions during the 10kV transformer detection process is as follows:

[0026] E 检测 =E A +E B +E C ;

[0027] Among them, E 检测 is the total emission of the power grid material detection process; E A E is the carbon emission of the A-type test items; B E is the carbon emission of Category B test items; C It is the carbon emission of Category C test items.

[0028] Furthermore, in step 3), the carbon emissions of each emission source are calculated by combining the calculation framework and logic of the emission factor method and using the product of the electricity consumption of the detection project and the electricity emission factor.

[0029] Specifically, in step 4), the source of activity data is the statistical equipment energy efficiency standards and operating hours of each detection link, which is used as the basic data for calculating the electricity consumption of a certain detection process; the emission factor is the greenhouse gas emissions generated by various energy unit activities, and the energy emissions of the quality detection process are mainly detection electricity energy.

[0030] Furthermore, the electricity emission factor is 0.5810tCO 2 / MWh.

[0031] Furthermore, in the step 6), the calculation model refers to the emission inventory of the 10kV transformer as a basis, sets the calculation method and calculation parameters for each energy consumption point of the detection operation equipment, and embeds the corresponding carbon emission calculation formula to realize data import to directly calculate the carbon emissions of each energy consumption point. After adding up, the total carbon emissions of the transformer detection process are obtained, and the emission calculation efficiency is improved through model application.

[0032] Specifically, the calculation logic of the calculation model includes:

[0033] 1) Data input:

[0034] Sort out the information of the testing equipment, collect its energy efficiency information and operation time data, and import them into the emission calculation model;

[0035] 2) Emission calculation:

[0036] The emission calculation model embeds the carbon emission calculation formula for each process, imports data including equipment energy efficiency and operation time, and automatically completes the emission calculation of the entire material inspection process;

[0037] 3) Structure output:

[0038] Output the calculation results to obtain the carbon emissions of the entire process of power grid material quality inspection.

[0039] Among them, the energy efficiency information includes energy efficiency data of the detection operation equipment; the operation duration data includes the single operation running time of the detection operation equipment.

[0040] Compared with the prior art, the advantages of the present invention are:

[0041] 1. The technical solution of the present invention identifies the carbon emission sources in the quality inspection process of power grid enterprises, and establishes a standard process and a scientific accounting method for the carbon emission of the quality inspection business of power grid enterprises; it configures a highly applicable emission calculation formula for the emission source of each inspection business project of the power grid enterprise, locks the emission calculation data, and determines the data collection scope and specific requirements for each data source, forming a scientific and clear emission calculation method for the quality inspection process;

[0042] 2. The technical solution of the present invention forms a set of model interfaces suitable for carbon emission accounting in the material quality inspection link of power grid enterprises, designs a simple model for emission measurement, solidifies the emission calculation methods of all inspection processes, locks the calculation parameters, emission factors and other factors required for measurement, and automatically forms the total carbon emissions after inputting data into the model, which greatly improves the carbon accounting efficiency of the inspection link of power grid enterprises and provides support and reference model for the subsequent development of carbon emission accounting methods in the inspection process of other power grid material categories.

[0043] 3. The technical solution of the present invention goes deep into the business link of power grid material quality inspection, takes the 10kV (oil-immersed) distribution transformer with large power grid material procurement scale as the pilot category, and constructs a standard carbon emission calculation method. Facing the whole process and all links of transformer inspection, identify each emission source of the inspection project, establish an emission accounting list, configure the calculation method for each emission source in the list, lock the basic data required for calculation, and form a carbon emission calculation method and model for power material quality inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of emission sources for 10kV transformer quality inspection;

[0045] Figure 2 It is a schematic diagram of the carbon emission calculation model for power grid material quality detection of the present invention. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Distribution transformers are key materials in power grid construction and have a large procurement scale. This technical solution takes 10kV (oil-immersed) distribution transformers as an example, investigates the carbon emission sources of transformers in all aspects of quality inspection business, finds out the types of energy emissions, and designs a scientific emission accounting method for the entire process of power grid material quality inspection based on the carbon emission factor method provided by the IPCC guidelines.

[0048] The specific approach of the technical solution of the present invention is: focusing on the key steps of defining boundaries, compiling inventories, configuring methods, and locking data, a carbon emission accounting method for the transformer quality inspection process is designed.

[0049] The details are as follows:

[0050] (1) Clarify accounting boundaries:

[0051] like Figure 1 As shown in the figure, based on the 10kV transformer quality inspection business process, the specific inspection operation procedures and corresponding energy emissions are sorted out, including the carbon emissions generated by Class A, Class B, and Class C inspection operations, and the boundary range of carbon emission calculation in the power grid material inspection link is clarified, laying the foundation for the design of the entire emission calculation plan.

[0052] (2) Prepare accounting list:

[0053] After identifying the emission sources of the transformer inspection process, an emission estimation list applicable to the inspection process is compiled according to the detailed emission source information.

[0054] Based on the inspection equipment and energy types sorted out in each emission link, the parameter field of the rated power of the inspection equipment and the data of the working time required for the inspection operation are added to form the inspection business emission list of 10kV transformer. See the table below for details:

[0055] Table 1 Carbon emission calculation list for 10kV transformer testing

[0056]

[0057]

[0058] (3) Configuration calculation method:

[0059] According to the sorting out of carbon emission sources in the quality inspection link, based on the emission calculation list, the emission factor method provided by the IPCC is used as the calculation method. For each emission source of the inspection business, the applicable calculation formula is configured and the calculation parameters are determined to ensure that each emission source listed in the calculation list can be calculated.

[0060] The calculation formula of carbon emissions during the 10kV transformer detection process is as follows:

[0061] E检测 =E A +E B +E C ;

[0062] E 检测 It is the total emission of the power grid material detection process;

[0063] E A Carbon emissions for Category A testing items;

[0064] E B Carbon emissions for Category B testing items;

[0065] E C It is the carbon emission of Category C test items.

[0066] According to the survey, the electricity consumption of the three types of testing projects is all electric energy. Therefore, combined with the calculation framework and logic of the emission factor method, it is clarified to use the product of the electricity consumption of the testing project and the electric emission factor to calculate the carbon emissions of each emission source.

[0067] The calculation method is as follows:

[0068] Pilot 10kV transformer product temperature rise test, the calculation formula is as follows:

[0069] E 温升 =AD 电 ×EF 电

[0070] E 温升 Carbon emissions for temperature rise test of transformer products to be inspected;

[0071] AD 电 The power consumption of the transformer product in the temperature rise test;

[0072] EF 电 is the electricity emission factor.

[0073] (4) Lock calculation parameters:

[0074] According to the carbon emission calculation formula, activity volume and emission factor are two parameters for calculating carbon emissions.

[0075] The source of activity data is the statistical equipment energy efficiency standards and operating hours of each detection link, which is used as the basic data for calculating the electricity consumption of a certain detection process; the emission factor is the greenhouse gas emissions generated by various energy unit activities, and the energy emissions of the quality detection process are mainly detection electricity energy.

[0076] The power emission factor is selected based on the "Notice on Doing a Good Job in Key Tasks Related to the Management of Corporate Greenhouse Gas Emission Reports in 2022" issued by the Ministry of Ecology and Environment. The emission factor parameter is the latest 0.5810tCO2 / MWh. This technical solution study refers to this data to ensure uniform calculation units.

[0077] Table 2 Emission factor parameters

[0078]

[0079]

[0080] (5) Carry out emission accounting:

[0081] By identifying the operating equipment of each inspection process in the quality inspection link of quality inspection carbon emission measurement, we have mastered the energy type, technical parameters, operating efficiency and other information of all operating equipment; then according to the 10kV transformer quality inspection emission calculation method, we have clarified the energy emission calculation method of the quality inspection link and the data required for the corresponding calculation, and the two-way combination has locked the data collection scope and specific content of each link.

[0082] Table 3 Data collection list for carbon emission calculation in the 10kV transformer detection process

[0083]

[0084] 6) Implementation means: Carbon emission model and application interface:

[0085] The technical solution of the present invention is a model tool for calculating carbon emissions from power grid material quality inspection, which solidifies the emission calculation formulas of all inspection processes, locks the calculation parameters, emission factors and other factors required for calculation, and constructs a set of measurement models to provide support for carbon emission accounting in the transformer quality inspection link.

[0086] The model takes the emission inventory of 10kV transformers as its basis, sets the calculation method and parameters for each energy consumption point of the detection equipment, and embeds the corresponding carbon emission calculation formula to directly calculate the carbon emissions of each energy consumption point through data import. After adding up, the total carbon emissions of the transformer detection process are obtained. Through the application of the model, the efficiency of emission measurement is improved.

[0087] The operation mechanism of the calculation model is shown in Figure 2 As shown.

[0088] Depend on Figure 2 As shown in , the operation logic of the carbon emission calculation model for power grid material quality detection described in this technical solution includes:

[0089] 1. Data input:

[0090] This step sorts out the information of the testing equipment, collects its energy efficiency information and operation time data, and imports them into the emission calculation model;

[0091] The energy efficiency information includes the energy efficiency data of the testing operation equipment; the operation time data includes the single operation running time of the testing operation equipment.

[0092] 2. Emission calculation:

[0093] The emission calculation model embeds the carbon emission calculation formula for each process (for the specific list of processes, please refer to the various collection checklist items listed in Table 2), imports relevant data such as equipment energy efficiency and operation time, and automatically completes the emission calculation of the entire material inspection process.

[0094] Carbon emissions of Category A test items = Emission 1 + Emission 2;

[0095] Among them, emission 1 = electricity consumption of short-circuit withstand capacity test process × electrical emission factor;

[0096] Emission 2 = electricity consumption of the sound level measurement process × electrical emission factor;

[0097] Carbon emissions of Category B projects = Emission 3 + Emission 4

[0098] Among them, emission 3 = electricity consumption of temperature rise test process × electricity emission factor;

[0099] Emission 4 = electricity consumption of lightning impulse test process × electricity emission factor;

[0100] Carbon emissions of Category C projects = emissions 5 + emissions 6 + … emissions n;

[0101] Among them, emission 5 = power consumption of pressure sealing test process × electrical emission factor;

[0102] Emission 6 = electricity consumption of winding resistance measurement process × electrical emission factor;

[0103] …

[0104] Emission n = electricity consumption of insulating liquid test process × electrical emission factor.

[0105] 3. Structure output:

[0106] Output the calculation results to obtain the carbon emissions of the entire process of power grid material quality inspection.

[0107] The technical solution of the present invention, by sorting out and identifying the carbon emission sources in the quality inspection process of power grid enterprises, establishes a standard process and a scientific accounting method for the carbon emissions of the quality inspection business of power grid enterprises.

[0108] It configures a highly applicable emission calculation formula for each emission source of each inspection business project of the power grid company, locks the emission calculation data, and determines the data collection scope and specific requirements for each data source, forming a scientific and clear emission measurement method for the quality inspection process.

[0109] It has formed a model interface suitable for carbon emission accounting in the material quality inspection link of power grid enterprises, designed a simple model for emission measurement, solidified the emission calculation methods of all inspection processes, locked the calculation parameters, emission factors and other factors required for measurement, and automatically formed the total carbon emissions after entering the data into the model, which greatly improved the carbon accounting efficiency of the inspection link of power grid enterprises and provided support and reference model for the subsequent development of carbon emission accounting methods in the inspection process of other power grid material categories.

[0110] The present invention can be widely used in the field of prediction and calculation of carbon emissions in the process of detecting power grid material categories.

Claims

1. A method for calculating carbon emissions from quality inspection of 10kV distribution transformers, characterized in that The following steps are involved: 1) Clarify accounting boundaries: According to the 10kV transformer quality inspection business process, the specific inspection procedures and corresponding energy emissions are sorted out, including the carbon emissions generated by Class A, Class B, and Class C inspection activities, and the boundary range of carbon emission calculation in the power grid material inspection link is clarified, laying the foundation for the design of the entire emission calculation plan; 2) Prepare accounting list: After identifying the emission sources during the transformer inspection process, a list of emission calculations applicable to the inspection process is compiled based on the detailed and sorted emission source information; 3)Configure calculation method: According to the sorting of carbon emission sources in the quality inspection link, based on the emission calculation list, the emission factor method provided by IPCC is used as the calculation method. For each emission source of the inspection business, the applicable calculation formula is configured and the calculation parameters are determined to ensure that each emission source listed in the calculation list can be calculated; 4) Lock calculation parameters: According to the carbon emission calculation formula, two parameters for calculating carbon emissions, namely activity volume and emission factor, are locked; 5) Carry out emission accounting: By identifying the operating equipment of each inspection process in the quality inspection link of quality inspection carbon emission measurement, we have mastered the information of all operating equipment including energy type, technical parameters, and operating efficiency parameters; Then, according to the 10kV transformer quality inspection emission calculation method, the energy emission calculation method of the quality inspection link and the corresponding data required for calculation are clarified, and the two-way combination is used to lock the data collection scope and specific content of each link; 6) Build a calculation model to support carbon emission accounting in transformer quality inspection: For the carbon emission calculation or measurement process of power grid material quality inspection, all inspection processes including emission calculation formulas are solidified, and the factors required for measurement, including calculation parameters and emission factors, are locked. A set of measurement models is constructed to provide support for carbon emission accounting in the transformer quality inspection link.

2. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that The carbon emission accounting method for quality inspection of 10kV distribution transformers goes deep into the quality inspection business of power grid materials, sorts out and identifies the carbon emission sources in the quality inspection process of power grid enterprises, and takes the 10kV oil-immersed distribution transformers with large-scale power grid material procurement as a pilot category to establish a standard process and scientific carbon emission calculation method for calculating the carbon emissions of the quality inspection business of power grid enterprises; Focusing on the entire process and all links of transformer inspection, we identify each emission source of the inspection project, establish an emission accounting list, configure the calculation method for each emission source in the list, lock the basic data required for the calculation, and form a carbon emission measurement method and model for power material quality inspection.

3. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that In the step 2), based on the detection equipment and energy consumption types sorted out in each emission link, the parameter field of the rated power of the detection operation equipment and the data of the operation time required for the detection operation are added to form the 10kV transformer detection business emission list.

4. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that In step 3), the calculation formula for carbon emissions during the 10kV transformer detection process is as follows: AND 检测 =And A +E B +E C ; Among them, E 检测 is the total emission of the power grid material detection process; E A E is the carbon emission of the A-type test items; B Carbon emissions for Category B test items; E C It is the carbon emission of Category C test items.

5. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that In the step 3), the carbon emissions of each emission source are calculated by combining the calculation framework and logic of the emission factor method and using the product of the electricity consumption of the detection project and the electricity emission factor.

6. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that In step 4), the activity data source is the statistical energy efficiency standard and operation time of each detection link of the equipment, which is used as the basic data for calculating the power consumption of a certain detection process; The emission factor is the greenhouse gas emissions generated by various energy unit activities. The energy emissions in the quality inspection process are mainly the inspection electricity energy.

7. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 6 is characterized by: The electricity emission factor is 0.5810tCO2 / MWh.

8. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that In the step 6), the calculation model refers to the emission inventory of the 10kV transformer as a basis, sets the calculation method and calculation parameters for each energy consumption point of the detection operation equipment, and embeds the corresponding carbon emission calculation formula to realize data import to directly calculate the carbon emissions of each energy consumption point. After summing up, the total carbon emissions of the transformer detection process are obtained. Through the application of the model, the efficiency of emission calculation is improved.

9. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 1 is characterized in that The calculation logic of the calculation model includes: 1) Data input: Sort out the information of the testing equipment, collect its energy efficiency information and operation time data, and import them into the emission calculation model; 2) Emission calculation: The emission calculation model embeds the carbon emission calculation formula for each process, imports data including equipment energy efficiency and operation time, and automatically completes the emission calculation of the entire material inspection process; 3) Structure output: Output the calculation results to obtain the carbon emissions of the entire process of power grid material quality inspection.

10. The carbon emission accounting method for quality inspection of 10kV distribution transformer according to claim 9 is characterized in that The energy efficiency information includes energy efficiency data of the detection operation equipment; the operation duration data includes the single operation running time of the detection operation equipment.

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