Construction method and system of transformer green low-carbon construction evaluation index system

Abstract

The invention provides a construction method and system of a transformer green low-carbon construction evaluation index system, and relates to the technical field of equipment evaluation, and the method comprises the steps: formulating an evaluation target according to the green low-carbon construction demand of a transformer; formulating at least one evaluation index associated with and supporting the evaluation target based on the full life cycle of the transformer; based on the green low-carbon index and the environmental influence index of the transformer, obtaining weights of all evaluation indexes by using an analytic hierarchy process; refining all the evaluation indexes into multi-level sub-evaluation indexes according to the application scene of the transformer; the evaluation target, all the evaluation indexes and all the sub-evaluation indexes are quantized, and the evaluation system is constructed according to the quantized evaluation target, evaluation indexes and sub-evaluation indexes in combination with weights, so that the green and low-carbon construction level of the transformer is improved, and the negative influence on the environment is reduced; and sustainable development of the whole energy industry can be promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment evaluation, and particularly relates to a method and system for constructing an evaluation index system for the green and low-carbon construction of transformers. Background Art

[0002] With the increasing global attention to environmental protection and sustainable development, the green transformation of the energy industry has become an irreversible trend. As a crucial device in the power system, transformers have an impact on the environment and consume resources during their entire life cycle from production and manufacturing, operation and maintenance to end-of-life recycling, which cannot be ignored. Traditional transformer manufacturing and evaluation systems often focus on technical performance and economic costs, but lack consideration for green and low-carbon aspects, resulting in many challenges in promoting the green development of the energy industry.

[0003] Currently, the concept of green and low-carbon has gradually penetrated into all walks of life, and the transformer industry is no exception. However, there is no unified and standardized method system for scientifically and systematically evaluating the green and low-carbon construction level of transformers. Most existing evaluation methods are limited to the assessment of a single stage or a single indicator, and it is difficult to comprehensively reflect the environmental friendliness and resource utilization efficiency of transformers during their entire life cycle. In addition, the requirements for the green and low-carbon construction of transformers vary in different application scenarios, and there is a lack of targeted evaluation indicators and detailed standards, resulting in the lack of practicality and guiding significance of evaluation results.

[0004] Therefore, it is necessary to provide a method and system for constructing an evaluation index system for the green and low-carbon construction of transformers to solve the above technical problems. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a method and system for constructing an evaluation index system for the green and low-carbon construction of transformers. Through a systematic method, a comprehensive, scientific and practical evaluation index system is constructed to provide strong support for the green transformation of the transformer industry. This method not only helps to improve the green and low-carbon construction level of transformers, reduce the negative impact on the environment, but also promotes the sustainable development of the entire energy industry.

[0006] The present invention provides a method for constructing an evaluation index system for the green and low-carbon construction of transformers, and the construction method includes the following steps:

[0007] Formulate an evaluation objective according to the green and low-carbon construction requirements of the transformer;

[0008] Based on the entire life cycle of the transformer, formulate at least one evaluation indicator that is associated with and supports the evaluation objective;

[0009] Based on the green and low-carbon indicators and environmental impact indicators of the transformer, the analytic hierarchy process is used to obtain the weights of all evaluation indicators. Among them, the green and low-carbon indicators are used to characterize the environmental friendliness and resource utilization efficiency of the transformer during its entire life cycle, and the environmental impact indicators are used to characterize the comprehensive environmental impact of the transformer during its entire life cycle;

[0010] Refine all evaluation indicators into multi-level sub-evaluation indicators according to the application scenario of the transformer;

[0011] Quantify the evaluation objectives, all evaluation indicators, and all sub-evaluation indicators, and construct an evaluation system based on the quantified evaluation objectives, evaluation indicators, and sub-evaluation indicators combined with weights.

[0012] Preferably, the evaluation objectives include one or more combinations of reducing carbon emissions, improving resource utilization efficiency, reducing energy consumption, reducing waste generation, reducing environmental pollution, enhancing recyclability, and enhancing economic benefits.

[0013] Preferably, in the step of formulating evaluation indicators based on the entire life cycle, the entire life cycle includes the design stage, manufacturing stage, transportation stage, installation stage, operation stage, maintenance stage, and scrapping and recycling stage of the transformer.

[0014] Preferably, formulating at least one evaluation indicator that is associated with and supports the evaluation objective based on the entire life cycle of the transformer includes:

[0015] Collect green strategies that contribute to the green and low-carbon construction requirements in each stage of the entire life cycle,

[0016] Set corresponding evaluation indicators for each stage of the entire life cycle based on the green strategies.

[0017] Preferably, using the analytic hierarchy process to obtain the weights of all evaluation indicators based on the green and low-carbon indicators and environmental impact degree of the transformer includes:

[0018] Construct a hierarchical structure model of the system. The hierarchical structure model includes an objective layer, a criterion layer, and an index layer. Among them, the objective layer is the overall objective of the green and low-carbon construction evaluation of the transformer; the criterion layer is the intermediate link to support the realization of the objective layer; the index layer is refined into quantifiable green and low-carbon indicators and environmental impact indicators to respectively reflect the resource utilization efficiency and environmental friendliness of the transformer;

[0019] Based on the expert domain knowledge in related fields, make pairwise comparisons of the relative importance scores between the criteria in the criterion layer and between the indicators in the index layer, and use the scaling method to construct at least one judgment matrix;

[0020] Use the eigenvalue method to calculate the maximum eigenvalue and the corresponding eigenvector of each judgment matrix, and perform normalization processing to obtain the weight vector of each hierarchical element relative to the upper-level element, where the hierarchy represents the criterion layer or the index layer, and the element represents the criterion of the criterion layer or the index of the index layer;

[0021] Calculate the consistency index CI of each judgment matrix, compare the consistency index CI of each judgment matrix with the average random consistency index RI to obtain the consistency ratio CR. When the consistency ratio CR is less than the preset threshold, it is considered that the judgment matrix meets the consistency condition, otherwise the judgment matrix needs to be adjusted until the consistency requirement is met.

[0022] Preferably, the adjustment of the judgment matrix is to modify the scoring of the relative importance of each element in the judgment matrix.

[0023] Preferably, refining all evaluation indicators according to the application scenarios of the transformer into multi-level sub-evaluation indicators, including:

[0024] For different application scenarios of the transformer, determine the specific requirements and constraints for the green and low-carbon construction needs of the transformer;

[0025] Based on the specific requirements and constraints, refine the original evaluation indicators into multi-level sub-evaluation indicators.

[0026] Preferably, the quantification of the evaluation objective, all evaluation indicators and all sub-evaluation indicators adopts the life cycle assessment method.

[0027] Preferably, constructing an evaluation system according to the quantified evaluation objective, the evaluation indicators and the sub-evaluation indicators combined with weights, including:

[0028] Combine the quantified evaluation objective, evaluation indicators and sub-evaluation indicators with the weights obtained by the analytic hierarchy process;

[0029] Based on the quantification results and weights, construct a complete evaluation system for the green and low-carbon construction of transformers.

[0030] The present invention also provides a construction system for the evaluation index system of the green and low-carbon construction of transformers, which is used to execute the construction method of the evaluation index system of the green and low-carbon construction of transformers. The construction system includes:

[0031] An evaluation objective formulation module, which is used to formulate an evaluation objective according to the green and low-carbon construction needs of the transformer;

[0032] An evaluation index formulation module, which is used to formulate at least one evaluation index related to and supporting the evaluation objective based on the whole life cycle of the transformer;

[0033] A weight determination module, which is used to obtain the weights of all evaluation indicators by using the analytic hierarchy process based on the green and low-carbon indicators and environmental impact indicators of the transformer, wherein the green and low-carbon indicators are used to characterize the environmental friendliness and resource utilization efficiency of the transformer during its entire life cycle, and the environmental impact indicators are used to characterize the comprehensive impact of the transformer on the environment during its entire life cycle;

[0034] A refined evaluation indicator module, which is used to refine all evaluation indicators into multi-level sub-evaluation indicators according to the application scenarios of the transformer;

[0035] A system construction module, which is used to quantify the evaluation objectives, all evaluation indicators and all sub-evaluation indicators, and construct an evaluation system according to the quantified evaluation objectives, evaluation indicators and sub-evaluation indicators in combination with the weights.

[0036] Compared with the related technologies, a method and system for constructing an evaluation index system for the green and low-carbon construction of a transformer provided by the present invention have the following beneficial effects:

[0037] The system of the present invention can cover the entire life cycle of the transformer, including various stages such as design, manufacturing, transportation, installation, operation, maintenance and scrapping and recycling, and fully consider the specific requirements and constraint conditions under different application scenarios. At the same time, the evaluation indicators in the system should be able to accurately reflect the green and low-carbon characteristics of the transformer, such as carbon emissions, resource utilization efficiency, energy consumption, waste generation, environmental pollution, recyclability and economic benefits.

[0038] In addition, in order to ensure the objectivity and accuracy of the evaluation results, it is also necessary to use scientific methods to quantify the evaluation indicators and allocate weights. Brief Description of the Drawings

[0039] Figure 1 is a flow chart of a method for constructing an evaluation index system for the green and low-carbon construction of a transformer provided by the present invention;

[0040] Figure 2 is a module structure diagram of a system for constructing an evaluation index system for the green and low-carbon construction of a transformer provided by the present invention. Detailed Description of the Invention

[0041] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that only parts related to the present invention rather than all structures are shown in the drawings for the sake of convenience of description. In addition, the embodiments in the present invention and the features in the embodiments can be combined with each other without conflict.

[0042] It should also be noted that, for the convenience of description, only the parts related to the present invention rather than all the content are shown in the drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operations are completed, but there can also be additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, and so on.

[0043] Embodiment 1

[0044] The present invention provides a method for constructing an evaluation index system for the green and low-carbon construction of transformers. Referring to Figure 1 as shown, the construction method includes the following steps:

[0045] S1: Set evaluation objectives according to the green and low-carbon construction requirements of the transformer.

[0046] In this step, specific evaluation objectives need to be set according to the green and low-carbon construction requirements of the transformer. The evaluation objectives should comprehensively cover the environmental impact and resource utilization efficiency of the transformer throughout its life cycle to ensure that the evaluation system can accurately reflect the green and low-carbon performance of the transformer.

[0047] In this embodiment, the evaluation objectives may include but are not limited to the following categories:

[0048] Reduce carbon emissions: Reduce the total carbon emissions of the transformer throughout its life cycle, especially the carbon emissions in stages such as manufacturing, operation, and end-of-life treatment.

[0049] Improve resource utilization efficiency: Ensure that the consumption of raw materials and energy is minimized during the production, operation, and maintenance of the transformer.

[0050] Reduce energy consumption: Optimize the design and manufacturing process to reduce the energy consumption of the transformer during operation.

[0051] Reduce waste generation: Reduce the waste generated during the production process through optimized design and production processes, and improve the recycling rate of materials after end-of-life.

[0052] Reduce environmental pollution: Reduce the pollutant emissions generated during the operation of the transformer to protect air, soil, and water resources.

[0053] Enhance recyclability: Design a product structure that is easy to disassemble and recycle to improve the reuse rate of materials from waste transformers.

[0054] Improve economic efficiency: By adopting green and low-carbon technologies, although the initial investment may increase, in the long run, it can reduce costs and improve economic efficiency.

[0055] Exemplarily, assume that a transformer manufacturer hopes to construct a green and low-carbon construction evaluation index system. First, it is necessary to clarify the evaluation objectives, for example:

[0056] Reduce carbon emissions: Ensure that the carbon emissions of the transformer during its entire life cycle are lower than the industry average.

[0057] Improve resource utilization efficiency: During the manufacturing process, the utilization efficiency of raw materials reaches more than 90%.

[0058] Reduce energy consumption: When in operation, the energy consumption of the transformer is lower than the national standard.

[0059] Reduce waste generation: The amount of waste generated during the manufacturing process does not exceed 5% of the total weight of raw materials.

[0060] Reduce environmental pollution: The concentration of harmful substances emitted during operation is lower than the national regulatory limit.

[0061] Enhance recyclability: Ensure that at least 80% of the materials can be recycled and reused after the transformer is scrapped.

[0062] Improve economic efficiency: By optimizing the design and production process, the service life of the transformer is extended by at least 20%, thereby reducing the life cycle cost.

[0063] Through these specific evaluation objectives, the manufacturer can take targeted measures to improve the green and low-carbon performance of the transformer. These objectives not only cover the degree of environmental friendliness but also take into account economic efficiency and social responsibility, forming a comprehensive evaluation framework.

[0064] These evaluation objectives include both environmental indicators such as reducing carbon emissions and improving resource utilization efficiency, as well as economic indicators such as improving economic efficiency. By clarifying these objectives, it can provide a solid foundation for formulating evaluation indicators, determining weights, and constructing an evaluation system in the future.

[0065] S2: Based on the entire life cycle of the transformer, formulate at least one evaluation indicator that is associated with and supports the evaluation objective.

[0066] Specifically, in the step of formulating evaluation indicators based on the entire life cycle, the entire life cycle includes the design stage, manufacturing stage, transportation stage, installation stage, operation stage, maintenance stage, and scrapping and recycling stage for the transformer.

[0067] Specifically, step S2 specifically includes the following steps:

[0068] S21: Collect green strategies that contribute to the green and low-carbon construction requirements in each stage of the whole life cycle.

[0069] In this embodiment, it is necessary to collect and analyze the green strategies that can contribute to the green and low-carbon construction requirements in each stage of the whole life cycle of the transformer. These green strategies include, but are not limited to:

[0070] Design stage: Adopt environmentally friendly materials, optimize the structural design to reduce material usage, improve energy efficiency, etc.;

[0071] Manufacturing stage: Adopt energy-saving production equipment, reduce waste generation, improve energy utilization efficiency, etc.;

[0072] Transportation stage: Optimize the logistics plan to reduce energy consumption and emissions during transportation;

[0073] Installation stage: Adopt energy-saving installation methods, reduce energy consumption during installation, etc.;

[0074] Operation stage: Improve the operation efficiency of the transformer, reduce energy consumption and emissions during operation;

[0075] Maintenance stage: Optimize the maintenance plan, extend the service life, reduce energy consumption during maintenance, etc.;

[0076] Scrap recycling stage: Design a product structure that is easy to disassemble and recycle, improve the material recycling rate, etc.

[0077] S22: Set corresponding evaluation indicators for each stage of the whole life cycle based on the green strategies.

[0078] In this embodiment, according to the above-collected green strategies, set corresponding evaluation indicators for each stage of the whole life cycle of the transformer. These indicators should be able to specifically reflect the green and low-carbon construction requirements of each stage and support the overall evaluation goal. Specifically:

[0079] Design stage

[0080] Usage rate of environmentally friendly materials: The proportion of environmentally friendly materials used in the design to the total materials;

[0081] Effect of structural optimization: The amount of material usage reduced through structural optimization;

[0082] Energy efficiency level: The energy efficiency level that the design can achieve.

[0083] Manufacturing stage

[0084] Coverage rate of energy-saving equipment: The proportion of energy-saving production equipment adopted;

[0085] Recycling rate of waste: The recycling rate of waste during the manufacturing process;

[0086] Energy consumption: Energy consumption during the manufacturing process.

[0087] Transportation stage

[0088] Transportation distance: The average transportation distance of the transformer from the manufacturing plant to the installation site;

[0089] Energy consumption during transportation: Energy consumption during transportation.

[0090] Installation stage

[0091] Energy consumption during installation: Energy consumption during installation;

[0092] Installation waste volume: The amount of waste generated during installation.

[0093] Operation stage

[0094] Operation efficiency: The efficiency of the transformer during operation;

[0095] Energy consumption during operation: Energy consumption during operation;

[0096] Emissions during operation: Emissions during operation.

[0097] Maintenance stage

[0098] Maintenance frequency: The maintenance frequency of the transformer;

[0099] Energy consumption during maintenance: Energy consumption during maintenance.

[0100] Scrap recycling stage

[0101] Material recycling rate: The recycling rate of materials after scrapping;

[0102] Disassembly convenience: The degree of considering disassembly convenience in design.

[0103] S3: Based on the green and low-carbon indicators and environmental impact indicators of the transformer, use the analytic hierarchy process to obtain the weights of all evaluation indicators. Among them, the green and low-carbon indicators are used to characterize the environmental friendliness and resource utilization efficiency of the transformer during its entire life cycle, and the environmental impact indicators are used to characterize the comprehensive environmental impact of the transformer during its entire life cycle.

[0104] Optionally, step S3 specifically includes the following:

[0105] S31: Construct a hierarchical structure model for the system. The hierarchical structure model includes an objective layer, a criterion layer, and an index layer. Among them, the objective layer is the overall objective of the green and low-carbon construction evaluation of the transformer; the criterion layer is the intermediate link to support the achievement of the objective layer; the index layer is refined into quantifiable green and low-carbon indicators and environmental impact indicators to respectively reflect the resource utilization efficiency and environmental friendliness of the transformer.

[0106] In this embodiment, a hierarchical structure model needs to be constructed, which includes three levels: an objective layer, a criterion layer, and an index layer.

[0107] Objective layer: The overall objective of the green and low-carbon construction evaluation of the transformer.

[0108] Criterion layer: The intermediate link to support the achievement of the objective layer, including but not limited to: reducing carbon emissions, improving resource utilization efficiency, reducing energy consumption, reducing waste generation, reducing environmental pollution, enhancing recyclability, and enhancing economic benefits

[0109] Index layer: Refined into quantifiable green and low-carbon indicators and environmental impact indicators, specifically including: the usage rate of environmentally friendly materials, the effect of structural optimization, energy efficiency grade, the coverage rate of energy-saving equipment, the waste recycling rate, energy consumption, transportation distance, energy consumption during transportation, energy consumption during installation, the amount of installation waste, operation efficiency, energy consumption during operation, emissions during operation, maintenance frequency, energy consumption during maintenance, material recycling rate, and disassembly convenience.

[0110] S32: Based on the expert domain knowledge in related fields, make pairwise comparisons of the relative importance scores between the criteria in the criterion layer and between the indicators in the index layer, and use the scaling method to construct at least one judgment matrix.

[0111] In this embodiment, invite experts in related fields to make pairwise comparisons of the relative importance between the criteria in the criterion layer and between the indicators in the index layer, and use the scaling method (Saaty 1-9 scale) to construct a judgment matrix.

[0112] Exemplarily, assume that the experts make pairwise comparisons of the criteria in the criterion layer and obtain the following judgment matrix:

[0113]

[0114]

[0115] Among them, A1 represents reducing carbon emissions, A2 represents improving resource utilization efficiency, A3 represents reducing energy consumption, A4 represents reducing waste generation, A5 represents reducing environmental pollution, A6 represents enhancing recyclability, and A7 represents enhancing economic benefits.

[0116] S33: Calculate the maximum eigenvalue and the corresponding eigenvector of each judgment matrix using the eigenvalue method, and perform normalization processing to obtain the weight vector of each hierarchical element relative to the upper-level element, where the hierarchy represents the criterion layer or the index layer, and the element represents the criterion of the criterion layer or the index of the index layer.

[0117] In this embodiment, it is necessary to calculate the maximum eigenvalue and the corresponding eigenvector of the judgment matrix using the eigenvalue method, and perform normalization processing to obtain the weight vector of each hierarchical element relative to the upper-level element.

[0118] Exemplarily, assume that the maximum eigenvalue of the above judgment matrix is λ max = 7.2, and the corresponding eigenvector is V = [v1, v2, v3, v4, v5, v6, v7]T. After normalization processing, the weight vectors of each criterion are obtained as follows:

[0119]

[0120] S34: Calculate the consistency index CI of each judgment matrix, compare the consistency index CI of each judgment matrix with the average random consistency index RI to obtain the consistency ratio CR. When the consistency ratio CR is less than the preset threshold, it is considered that the judgment matrix meets the consistency condition; otherwise, the judgment matrix needs to be adjusted until the consistency requirement is met.

[0121] In this embodiment, based on the above example, calculate the consistency index, specifically:

[0122] Assume that the consistency index CI of the above judgment matrix is 0.05, and the average random consistency index RI = 1.32 (for a 7th-order matrix), then the consistency ratio is:

[0123]

[0124] Since CR < 0.1, the judgment matrix meets the consistency condition.

[0125] Through the above steps, it can be ensured that the Analytic Hierarchy Process (AHP) is both scientific and reasonable in the process of obtaining the weights of evaluation indicators, thereby providing reliable data support for the subsequent construction of the evaluation system. These steps not only help us quantify the importance of evaluation indicators but also provide a solid foundation for the subsequent construction of the evaluation system.

[0126] Among them, the adjustment of the judgment matrix is to modify the scores of the relative importance of each element in the judgment matrix, that is, while maintaining the overall trend unchanged, appropriately adjust the scores of the relative importance of each element to make it more consistent.

[0127] S4: Refine all evaluation indicators into multi-level sub-evaluation indicators according to the application scenarios of the transformer.

[0128] Optionally, step S4 specifically includes the following steps:

[0129] S41: For different application scenarios of the transformer, determine the specific requirements and constraints for the green and low-carbon construction needs of the transformer in each scenario.

[0130] In this embodiment, it is necessary to analyze the specific requirements and constraints of the transformer under different application scenarios to determine the necessity and specific content of refining the evaluation indicators.

[0131] First, determine the application scenarios:

[0132] Industrial applications: large industrial sites such as factories and power facilities.

[0133] Commercial applications: commercial buildings, shopping centers, etc.

[0134] Residential applications: residential communities, apartment buildings, etc.

[0135] Special applications: applications in specific environments such as data centers and medical facilities.

[0136] Determine the specific requirements and constraints:

[0137] Among them, industrial applications require high energy efficiency and stability to reduce operating costs. For large equipment, transportation and installation need to be particularly considered, and waste management and recycling need to strictly comply with environmental protection regulations.

[0138] Commercial applications pay more attention to appearance design and space occupation to adapt to the internal space layout of the building; noise control needs to be considered to not affect commercial activities; installation and maintenance need to be simple and fast without affecting daily operations.

[0139] Residential applications pay more attention to safety and reliability to ensure the safety of residents' lives. The installation location is limited, a compact design is required, and the operating noise needs to be controlled at a low level to avoid disturbing residents.

[0140] Exemplarily,

[0141] For industrial applications, the specific requirements are high energy efficiency, high stability, and low cost; the constraints are transportation and installation limitations, waste management, and recycling.

[0142] For commercial applications, the specific requirements are aesthetics, low noise, easy installation and maintenance; the constraints are space limitations, noise control, and impact on daily operations.

[0143] For residential applications, the specific requirements are safety, reliability, and low noise; the constraints are limited installation locations and high safety requirements.

[0144] S42: Based on specific requirements and constraints, refine the original evaluation indicators into multi-level sub-evaluation indicators.

[0145] In this embodiment, according to the above specific requirements and constraints, the original evaluation indicators are further refined into multi-level sub-evaluation indicators.

[0146] Specifically, for industrial applications, the sub-evaluation indicators are as follows:

[0147] For the raw material acquisition stage:

[0148] Raw material sustainability: The proportion of renewable materials used; Carbon emissions during transportation: Carbon emissions during the transportation of raw materials.

[0149] For the manufacturing stage:

[0150] Energy consumption: The energy consumption during the manufacturing process.

[0151] Waste recycling rate: The waste recycling rate during the manufacturing process.

[0152] For the transportation stage:

[0153] Transportation distance: The average transportation distance of the transformer from the manufacturing plant to the installation site.

[0154] Energy consumption during transportation: The energy consumption during transportation.

[0155] For the installation stage:

[0156] Energy consumption during installation: The energy consumption during the installation process.

[0157] Installation waste volume: The waste volume generated during the installation process.

[0158] For the operation stage:

[0159] Operation efficiency: The efficiency of the transformer during operation.

[0160] Energy consumption during operation: The energy consumption during the operation process.

[0161] Emissions during operation: The emissions during the operation process.

[0162] For the maintenance stage:

[0163] Maintenance frequency: The maintenance frequency of the transformer.

[0164] Energy consumption during maintenance: The energy consumption during the maintenance process.

[0165] For the scrapping and recycling stage:

[0166] Recycling rate of materials: The recycling rate of materials after being scrapped.

[0167] Disassembly convenience: The degree of considering disassembly convenience in design.

[0168] For commercial applications, its sub - evaluation indicators are specifically:

[0169] For the raw material acquisition stage:

[0170] Usage rate of environmentally friendly materials: The proportion of environmentally friendly materials used in the design to the total materials. For the manufacturing stage:

[0171] Energy consumption: The amount of energy consumed during the manufacturing process.

[0172] Noise control: The noise level during the manufacturing process.

[0173] For the transportation stage:

[0174] Energy consumption during transportation: The amount of energy consumed during transportation.

[0175] For the installation stage:

[0176] Energy consumption during installation: The amount of energy consumed during installation.

[0177] Amount of installation waste: The amount of waste generated during installation.

[0178] Noise control during installation: The noise level during installation.

[0179] For the operation stage:

[0180] Operation efficiency: The efficiency of the transformer during operation.

[0181] Energy consumption during operation: The amount of energy consumed during operation.

[0182] Noise level during operation: The noise level during operation.

[0183] For the maintenance stage:

[0184] Maintenance frequency: The maintenance frequency of the transformer.

[0185] Energy consumption during maintenance: The amount of energy consumed during maintenance.

[0186] Noise control during maintenance: The noise level during maintenance.

[0187] For the scrapping and recycling stage:

[0188] Recycling rate of materials: The recycling rate of materials after being scrapped.

[0189] Disassembly convenience: The degree to which disassembly convenience is considered in the design.

[0190] For industrial applications, its sub-evaluation indicators are:

[0191] For the raw material acquisition stage:

[0192] Raw material sustainability: The proportion of renewable materials used.

[0193] Carbon emissions during transportation: Carbon emissions during the transportation of raw materials. For the manufacturing stage:

[0194] Energy consumption: The energy consumption during the manufacturing process.

[0195] Waste recycling rate: The waste recycling rate during the manufacturing process.

[0196] Degree of production line automation: The automation level of the production line.

[0197] For the transportation stage:

[0198] Transportation distance: The average transportation distance of the transformer from the manufacturing plant to the installation site.

[0199] Energy consumption during transportation: The energy consumption during transportation.

[0200] Carbon emissions during transportation: Carbon emissions during transportation.

[0201] For the installation stage:

[0202] Energy consumption during installation: The energy consumption during installation.

[0203] Installation waste volume: The waste volume generated during installation.

[0204] Carbon emissions during installation: Carbon emissions during installation.

[0205] For the operation stage:

[0206] Operation efficiency: The efficiency of the transformer during operation.

[0207] Energy consumption during operation: The energy consumption during operation.

[0208] Emissions during operation: Emissions during operation.

[0209] Carbon emissions during operation: Carbon emissions during operation.

[0210] For the maintenance stage:

[0211] Maintenance frequency: The maintenance frequency of the transformer.

[0212] Energy consumption during maintenance: Energy consumption during maintenance.

[0213] Carbon emissions during maintenance: Carbon emissions during maintenance.

[0214] For the end - of - life recycling stage:

[0215] Material recycling rate: Recycling rate of materials after end - of - life.

[0216] Disassembly convenience: Degree of considering disassembly convenience in design.

[0217] Carbon emissions during end - of - life: Carbon emissions during end - of - life.

[0218] S5: Quantify the evaluation objectives, all evaluation indicators, and all sub - evaluation indicators, and construct an evaluation system according to the quantified evaluation objectives, evaluation indicators, and sub - evaluation indicators combined with weights.

[0219] In step S5, the quantification of the evaluation objectives, all evaluation indicators, and all sub - evaluation indicators adopts the life - cycle assessment method.

[0220] Optionally, step S5 specifically includes the following steps:

[0221] S51: Combine the quantified evaluation objectives, evaluation indicators, and sub - evaluation indicators with the weights obtained by the analytic hierarchy process method.

[0222] In this embodiment, it is necessary to combine the evaluation objectives, evaluation indicators, and sub - evaluation indicators quantified by the life - cycle assessment method (LCA) with the weights obtained by the analytic hierarchy process method (AHP).

[0223] Use the life - cycle assessment method (LCA) to quantify the indicators of the transformer during its entire life cycle, which includes collecting and analyzing data in various stages such as design, manufacturing, transportation, installation, operation, maintenance, and end - of - life recycling.

[0224] The quantification steps are specifically as follows:

[0225] Define the evaluation objectives of the green and low - carbon construction of the transformer to be evaluated and delimit the evaluation scope.

[0226] Collect data related to the evaluation indicators during the entire life cycle of the transformer.

[0227] Record the inputs (such as energy consumption, raw material use, etc.) and outputs (such as waste, emissions, etc.) at each stage.

[0228] Convert the results of the inventory analysis into environmental impacts, such as carbon emissions, energy consumption, etc., and evaluate the comprehensive impact of these impacts on the environment.

[0229] Exemplarily, it is assumed that the following evaluation indicators and sub-evaluation indicators have been quantified:

[0230] Design phase: The usage rate of environmentally friendly materials is 50%, the effect of structural optimization reduces the material usage by 10%, and the energy efficiency level reaches the national first-class standard.

[0231] Manufacturing phase: The coverage rate of energy-saving equipment is 80%, the waste recycling rate is 75%, and the energy consumption is 300 kWh per ton of transformer.

[0232] Transportation phase: The transportation distance is an average of 1000 kilometers, and the energy consumption during transportation is 20 L of fuel per ton of transformer transported.

[0233] Installation phase: The energy consumption during installation is an average of 50 kWh per transformer installed, and the installation waste volume is an average of 0.5 tons of waste generated per transformer installed.

[0234] Operation phase: The operation efficiency is an average of 95%, the energy consumption during operation is 500 kWh per hour, and the emissions during operation are 100 kg of CO2 emitted per hour.

[0235] Maintenance phase: The maintenance frequency is once a year, and the energy consumption during maintenance is 200 kWh per maintenance.

[0236] Scrap recycling phase: The material recycling rate is 80%, and the disassembly convenience has a disassembly time of 2 hours. S52: Based on the quantification results and weights, construct a complete evaluation system for the green and low-carbon construction of transformers.

[0237] In this embodiment, the quantified evaluation objectives, evaluation indicators, and sub-evaluation indicators are combined with the weights obtained by the analytic hierarchy process. The weights reflect the importance of each evaluation indicator. According to the quantification results and weights, calculate the weighted scores of each evaluation indicator, and sum up all the weighted scores to obtain the final evaluation result.

[0238] Exemplarily, it is assumed that the following weights have been obtained through AHP:

[0239] Reduce carbon emissions: 0.25;

[0240] Improve resource utilization efficiency: 0.20;

[0241] Reduce energy consumption: 0.15;

[0242] Reduce waste generation: 0.10;

[0243] Reduce environmental pollution: 0.10;

[0244] Enhanced recyclability: 0.10;

[0245] Improved economic efficiency: 0.10;

[0246] Combine the quantification results with weights:

[0247] For the design stage:

[0248] Usage rate of environmentally friendly materials: 50% × 0.20 = 10%

[0249] Effect of structural optimization: Reduction of 10% in material usage × 0.20 = 2%

[0250] Energy efficiency level: Meeting the national first-level standard × 0.20 = 20%

[0251] For the manufacturing stage:

[0252] Coverage rate of energy-saving equipment: 80% × 0.15 = 12%

[0253] Waste recycling and utilization rate: 75% × 0.10 = 7.5%

[0254] Energy consumption: 300 kWh of electricity consumed per ton of transformer × 0.15 = 45%

[0255] For the transportation stage:

[0256] Transportation distance: Average transportation distance is 1000 kilometers × 0.10 = 10%

[0257] Energy consumption during transportation: 20 L of fuel consumed per ton of transformer during transportation × 0.10 = 2%

[0258] For the installation stage:

[0259] Energy consumption during installation: 50 kWh of electricity consumed per average transformer during installation × 0.10 = 5% Installation waste volume: 0.5 tons of waste generated per average transformer during installation × 0.10 = 0.5%

[0260] For the operation stage:

[0261] Operation efficiency: Average operation efficiency is 95% × 0.25 = 23.75%

[0262] Energy consumption during operation: 500 kWh of electricity consumed per hour × 0.25 = 125%

[0263] Emissions during operation: 100 kg of CO2 emitted per hour × 0.25 = 25%

[0264] For the maintenance stage:

[0265] Maintenance frequency: Once a year maintenance × 0.10 = 10%

[0266] Energy consumption during maintenance: Each maintenance power consumption 200 kWh × 0.10 = 20%

[0267] Scrap recycling stage:

[0268] Material recycling utilization rate: 80% × 0.10 = 8%

[0269] Disassembly convenience: Disassembly time is 2 hours × 0.10 = 2%

[0270] Calculate the total score:

[0271] Sum up all the weighted scores:

[0272] Total score in the design stage: 10% + 2% + 20% = 32%

[0273] Total score in the manufacturing stage: 12% + 7.5% + 45% = 64.5%

[0274] Total score in the transportation stage: 10% + 2% = 12%

[0275] Total score in the installation stage: 5% + 0.5% = 5.5%

[0276] Total score in the operation stage: 23.75% + 125% + 25% = 173.75%

[0277] Total score in the maintenance stage: 10% + 20% = 30%

[0278] Total score in the scrap recycling stage: 8% + 2% = 10%

[0279] The final score of the evaluation system is:

[0280] Total score = 32% + 64.5% + 12% + 5.5% + 173.75% + 30% + 10% = 337.75%

[0281] The working principle of the construction method of the green and low-carbon construction evaluation index system for a transformer provided by the present invention is as follows:

[0282] First, according to the green and low-carbon construction requirements of the transformer, clarify the evaluation objectives, which include single or combined objectives such as reducing carbon emissions, improving resource utilization efficiency, reducing energy consumption, reducing waste generation, reducing environmental pollution, enhancing recyclability, and enhancing economic benefits.

[0283] Secondly, based on the entire life cycle of the transformer (including stages such as design, manufacturing, transportation, installation, operation, maintenance, and scrap recycling), evaluation indicators that can be associated with and support the evaluation objectives are formulated. This step is achieved by collecting green strategies that contribute to green and low-carbon construction in each stage and setting specific evaluation indicators based on these strategies.

[0284] Then, using the Analytic Hierarchy Process (AHP), the evaluation index system is constructed into a hierarchical structure model, including an objective layer, a criterion layer, and an index layer. A judgment matrix is constructed through expert scoring, the weights of elements at each level are calculated using the eigenvalue method, and the consistency of the judgment matrix is verified to ensure the scientificity and rationality of the weights.

[0285] Next, according to the different application scenarios of the transformer, the specific requirements and constraints for green and low-carbon construction in each scenario are identified, and the original evaluation indicators are further refined into multi-level sub-evaluation indicators to enhance the pertinence and operability of the evaluation system.

[0286] Then, using the Life Cycle Assessment (LCA) method or other appropriate quantification methods, the evaluation objectives, evaluation indicators, and sub-evaluation indicators are quantified to reflect the green and low-carbon performance of the transformer with specific numerical values.

[0287] Finally, the quantified evaluation objectives, evaluation indicators, and sub-evaluation indicators are combined with the weights obtained through the Analytic Hierarchy Process to construct a complete evaluation system for the green and low-carbon construction of transformers. This system not only reflects the environmental friendliness and resource utilization efficiency of the transformer throughout its life cycle but also takes into account the specific requirements and constraints under different application scenarios.

[0288] In summary, the purpose of this method is to construct a comprehensive, systematic, and scientific evaluation index system for the green and low-carbon construction of transformers to support the comprehensive assessment of the environmental friendliness, resource utilization efficiency, and environmental impact of transformers throughout their life cycle. By clarifying the evaluation objectives, formulating associated evaluation indicators, quantifying the indicators, and combining the weights, a set of operable evaluation systems are finally formed to guide the green and low-carbon design and manufacturing of transformers.

[0289] Embodiment 2

[0290] The present invention also provides a construction system for an evaluation index system for the green and low-carbon construction of transformers, which is used to execute the construction method of the evaluation index system for the green and low-carbon construction of transformers. Refer to Figure 2 As shown, the construction system includes:

[0291] An evaluation objective formulation module 100, which is used to formulate an evaluation objective according to the green and low-carbon construction requirements of the transformer;

[0292] The evaluation index formulation module 200 is used to formulate at least one evaluation index related to and supporting the evaluation objective based on the whole life cycle of the transformer;

[0293] The weight determination module 300 is used to obtain the weights of all evaluation indexes by using the analytic hierarchy process method based on the green and low-carbon indexes and environmental impact indexes of the transformer. Among them, the green and low-carbon indexes are used to characterize the environmental friendliness degree and resource utilization efficiency of the transformer during the whole life cycle, and the environmental impact indexes are used to characterize the comprehensive impact of the transformer on the environment during the whole life cycle;

[0294] The refined evaluation index module 400 is used to refine all evaluation indexes into multi-level sub-evaluation indexes according to the application scenarios of the transformer;

[0295] The system construction module 500 is used to quantify the evaluation objective, all evaluation indexes and all sub-evaluation indexes, and construct an evaluation system according to the quantified evaluation objective, evaluation indexes and sub-evaluation indexes combined with the weights.

[0296] This application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to the embodiments of this application. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 a block or multiple blocks.

[0297] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium includes read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc memories, magnetic disc memories, tape memories, or any other medium that can be used to carry or store data and is computer-readable.

[0298] It should also be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

Claims

1. A method for constructing a green and low-carbon construction evaluation index system for transformers, characterized in that: The construction method comprises the following steps: Formulate evaluation targets based on the green and low-carbon construction requirements of the transformer; Formulate at least one evaluation indicator related to and supporting the evaluation target based on the entire life cycle of the transformer; Based on the green and low-carbon index and environmental impact index of the transformer, the weights of all evaluation indexes are obtained by using the hierarchical analysis method, wherein the green and low-carbon index is used to characterize the environmental friendliness and resource utilization efficiency of the transformer throughout its life cycle, and the environmental impact index is used to characterize the comprehensive impact of the transformer on the environment throughout its life cycle; Refining all evaluation indicators into multi-level sub-evaluation indicators according to the application scenario of the transformer; The evaluation objectives, all evaluation indicators and all sub-evaluation indicators are quantified, and an evaluation system is constructed based on the quantified evaluation objectives, evaluation indicators and sub-evaluation indicators in combination with weights.

2. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 1, characterized in that: The evaluation objectives include one or more combinations of reducing carbon emissions, improving resource utilization efficiency, reducing energy consumption, reducing waste generation, reducing environmental pollution, enhancing recyclability and improving economic benefits.

3. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 1 is characterized in that: In the step of formulating evaluation indicators based on the entire life cycle, the entire life cycle includes the design stage, manufacturing stage, transportation stage, installation stage, operation stage, maintenance stage and scrapping and recycling stage for the transformer.

4. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 3 is characterized in that: The formulating of at least one evaluation indicator associated with and supporting the evaluation target based on the full life cycle of the transformer includes: Collect green strategies that contribute to green and low-carbon construction needs at each stage of the life cycle. Based on the green strategy, corresponding evaluation indicators are set for each stage of the entire life cycle.

5. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 1, characterized in that: Based on the green and low-carbon index and environmental impact of the transformer, the weights of all evaluation indicators are obtained using the hierarchical analysis method, including: Construct a hierarchical model of the system, which includes a target layer, a criterion layer and an indicator layer, wherein the target layer is the overall goal of green and low-carbon construction evaluation of transformers; the criterion layer is the intermediate link to support the realization of the target layer; the indicator layer is refined into quantifiable green and low-carbon indicators and environmental impact indicators to respectively reflect the resource utilization efficiency and environmental friendliness of the transformer; Based on the domain knowledge of experts in related fields, the relative importance scores of the criteria in the criterion layer and the indicators in the indicator layer are compared pairwise, and at least one judgment matrix is ​​constructed by using a scaling method; The maximum eigenvalue and the corresponding eigenvector of each judgment matrix are calculated by the eigenvalue method, and normalized to obtain the weight vector of each level element relative to the previous level element, wherein the level represents the criterion level or the indicator level, and the element represents the criterion of the criterion level or the indicator of the indicator level; The consistency index CI of each judgment matrix is ​​calculated, and the consistency index CI of each judgment matrix is ​​compared with the average random consistency index RI to obtain the consistency ratio CR. When the consistency ratio CR is less than the preset threshold, the judgment matrix is ​​considered to meet the consistency condition, otherwise the judgment matrix needs to be adjusted until it meets the consistency requirement.

6. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 5, characterized in that: The adjustment of the judgment matrix is ​​to modify the score of the relative importance of each element in the judgment matrix.

7. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 5, characterized in that: The step of refining all evaluation indicators into multi-level sub-evaluation indicators according to the application scenario of the transformer includes: According to different application scenarios of the transformer, determine the specific requirements and constraints of each scenario on the green and low-carbon construction requirements of the transformer; Based on the specific requirements and constraints, the original evaluation indicators are refined into multi-level sub-evaluation indicators.

8. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 1, characterized in that: The evaluation objectives, all evaluation indicators and all sub-evaluation indicators are quantified using the life cycle assessment method.

9. The method for constructing a transformer green and low-carbon construction evaluation index system according to claim 1, characterized in that: The evaluation system is constructed based on the quantified evaluation target, the evaluation index and the sub-evaluation index in combination with weights, including: Combine the quantified evaluation objectives, evaluation indicators and sub-evaluation indicators with the weights obtained through the hierarchical analysis method; Based on the quantitative results and weights, a complete green and low-carbon construction evaluation system for transformers is constructed.

10. A system for constructing a transformer green and low-carbon construction evaluation index system, used to execute the method for constructing a transformer green and low-carbon construction evaluation index system according to any one of claims 1 to 9, characterized in that: The build system includes: An evaluation target formulation module is used to formulate evaluation targets according to the green and low-carbon construction requirements of the transformer; An evaluation indicator formulation module, used to formulate at least one evaluation indicator associated with and supporting the evaluation target based on the entire life cycle of the transformer; A weight determination module, used to obtain the weights of all evaluation indicators using a hierarchical analysis method based on the green and low-carbon indicators and environmental impact indicators of the transformer, wherein the green and low-carbon indicators are used to characterize the environmental friendliness and resource utilization efficiency of the transformer throughout its life cycle, and the environmental impact indicators are used to characterize the comprehensive impact of the transformer on the environment throughout its life cycle; A module for refining evaluation indicators, used to refine all evaluation indicators into multi-level sub-evaluation indicators according to the application scenario of the transformer; The system construction module is used to quantify the evaluation objectives, all evaluation indicators and all sub-evaluation indicators, and construct an evaluation system based on the quantified evaluation objectives, evaluation indicators and sub-evaluation indicators combined with weights.

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