CN-122023084-A - Carbon emission optimization design method for full life cycle transformer substation project

CN122023084ACN 122023084 ACN122023084 ACN 122023084ACN-122023084-A

Abstract

The invention relates to a carbon emission optimization design method for a full life cycle transformer substation project. The method disassembles the whole life cycle power grid project based on system dynamics, divides the whole life cycle power grid project into multi-stage single projects, and optimizes the cost and carbon emission of the whole life cycle power grid project by adopting a 0-1 integer programming method. The method solves the problem that the time between the carbon emission and the cost of the project of the power grid engineering is measured by the analytic hierarchy process from top to bottom, and the relation between the upper and lower layers is weaker, can provide a carbon emission optimization technical scheme which is most in line with the actual situation under different time scales and technical development conditions of the project, fills in the application gap of increased technical hysteresis cost caused by technical progress and technical cost change of the project implementation stage and the design stage, and ensures that the whole life cycle of the project can be adjusted and optimized according to the development of the technology.

Inventors

CHEN KAILING
SHI SONGFENG
WU ENQI
ZHU ZIXUAN
LU WEIBIN
TIAN BINGYING
ZHANG HAN
ZOU YUANCHI
JIANG YITIAN

Assignees

国网上海市电力公司
华北电力大学

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (10)

1. The project carbon emission optimization design method for the full life cycle transformer substation is characterized by comprising the following steps of: Step 1, accounting the total cost of the carbon reduction technology of the green building, wherein the expression of the total cost C low-carbon of the carbon reduction technology of the green building is shown as follows: In the above, T is the whole life cycle of the project of the power grid engineering, T is the T-th year of the project, C low-carbon is the increment cost of reducing carbon emission in the whole life cycle, The incremental cost of carbon emissions is reduced for the t-th year of the material plant production and transportation stage, The incremental cost of carbon emission is reduced for the t-th year of the engineering construction installation and debugging stage, In order to reduce the incremental cost of carbon emissions in the t-th year of the service phase, The incremental cost of carbon emission is reduced for the t-th year of the waste disposal stage, i 0 is the discount rate; And 2, accounting the comprehensive benefit of the project life cycle, wherein the expression of the comprehensive benefit R all-carbon of the project life cycle is shown as follows: In the above formula, R all-carbon is the comprehensive benefit of the project life cycle, Economic benefit generated for project in the t-th year; Social benefits generated in the t-th year of the project; Environmental benefits generated in project year t; and 3, according to the total cost of the green building carbon reduction technology obtained in the step 1 and the comprehensive benefit of the project total life cycle obtained in the step 2, comparing and selecting the carbon reduction project of the power grid project total life cycle by using a 0-1 integer programming method, and obtaining the carbon reduction technology most suitable for the project, wherein the specific method comprises the steps of obtaining a project maximum net present value max N PV, and the objective function of the project maximum net present value is shown in the following formula: max N PV=R all-carbon -C low-carbon 。
2. the method for optimizing the carbon emission of the project of the full life cycle transformer substation according to claim 1, wherein the specific steps of the step 1 are as follows: in the step 1-1, incremental cost for reducing carbon emission in the t-th year of production and transportation of material equipment is shown as the following formula: In the above-mentioned method, the step of, The incremental cost of carbon emissions is reduced for the material plant used in the t-th year of its production and transportation stage from the beginning of the put-into-production to the production cost, The incremental cost generated by carbon emission is reduced for the material equipment transportation process of the t-th year of material equipment production and transportation; wherein, the material equipment production and transportation process of the material equipment in the t-th year of transportation stage reduces the increment cost generated by carbon emission The specific formula is as follows: In the above formula, I is the ith transportation means, I is the total number of transportation means types, Incremental costs for the ith reduced carbon transport mode of the material plant during the production and transport phase of the material plant, For the number of ith transportation modes in the t-th year of the production and transportation stage of the material equipment, A single conveying distance for the ith conveying mode of the t th year in the production and conveying stage of the material equipment; step 1-2, the incremental cost for reducing carbon emission in the t-th year of the engineering construction installation and debugging stage is shown as the following formula: In the above-mentioned method, the step of, The construction increment cost of reducing the carbon of the project in the t-th year of the project construction installation and debugging stage comprises the labor cost increment and the mechanical use increment cost; the installation increment cost of reducing carbon for the project in the t-th year of the installation and debugging stage of the engineering construction; The debugging increment cost of reducing carbon for the project of the t-th year of the project construction installation and debugging stage is reduced; incremental cost for consuming energy in the t-th year in the construction, installation and debugging process; incremental cost of using water resources for reducing carbon in the t-th year in the construction process; the method comprises the steps of reducing the incremental cost of carbon for temporary houses, temporary pipelines and temporary site rents built in the project construction process at the t-th year; wherein, the incremental cost of energy consumption in the t-th year in the construction, installation and debugging process The specific formula is as follows: In the above-mentioned method, the step of, Incremental cost of electricity consumption for reducing carbon in the t-th year in the construction, installation and debugging process; incremental cost of natural gas consumed by carbon reduction in the t-th year in the construction, installation and debugging process is reduced; Incremental cost of petroleum consumption is reduced for the t-th year in the construction, installation and debugging process; Incremental cost of coal consumption is reduced for the t-th year in the construction, installation and debugging process; Step 1-3, the incremental cost of reducing carbon emission in the t-th year of the operation and maintenance stage is shown as the following formula: In the above-mentioned method, the step of, The cost of waste treatment generated in the t-th year of the operation and maintenance stage comprises the cost increased by carrying out garbage classification and throwing management on low-carbon projects; The cost of constructing an intelligent management system for the t-th year of the operation stage, namely the cost brought by using an intelligent management technology to effectively control and manage the energy consumption of the building, so that the equipment can exert the maximum efficiency; maintenance cost for the equipment in the t-th year of the operation and maintenance stage; The cost of using new low-carbon equipment and technology for the t-th year of operation and maintenance stage is updated; costs for consuming energy for the t-th year of the operational overhaul period; cost of using Water resources for the t-th year of the run and overhaul stage Wherein, the t-th year of the operation maintenance stage consumes the cost of energy The following formula is shown: In the above-mentioned method, the step of, Incremental cost of electricity consumption for reducing carbon in the t-th year in the construction, installation and debugging process; incremental cost of natural gas consumed by carbon reduction in the t-th year in the construction, installation and debugging process is reduced; Incremental cost of petroleum consumption is reduced for the t-th year in the construction, installation and debugging process; Incremental cost of coal consumption is reduced for the t-th year in the construction, installation and debugging process; step 1-4, the incremental cost of reducing carbon emissions in the t-th year of the disposal stage is shown as follows: In the above-mentioned method, the step of, The cost of protecting the environment for the t-th year after the waste is dismantled in the waste disposal stage; The cost brought by the pre-treatment of the waste in the t-th year of the waste treatment stage for recycling; Cost for redevelopment of project at t-th year of disposal stage.
3. The method for optimizing the carbon emission of the project of the full life cycle transformer substation according to claim 1, wherein the specific steps of the step 2 are as follows: Step 2-1, economic benefit generated in project t year The specific formula is as follows: In the above formula, W i t is the saving amount of the ith resource in the t-th year, Is the market value of the ith resource in the t-th year, and W i t comprises the energy-saving benefit of the low-carbon building in the t-th year Energy-saving benefit of t-th furnace structure Solar energy utilization benefit of the t th year Low carbon and water saving benefit in the t th year And the land-saving benefit of the t th year Step 2-2, social benefits generated in project t year The specific formula is as follows: in the above, n is the total number of national economy departments involved in the green investment of the power grid, The method is characterized in that the method is direct consumption of the green investment of the power grid to the ith national economy part, and V i add is the input-output increase value of the ith national economy department; Step 2-3, environmental benefit generated in project t year The specific formula is as follows: In the above-mentioned method, the step of, Carbon emission reduction for the t-th year of the project life cycle, For the price of the carbon trade in the carbon market at the t-th year, Subsidy and tax offers given to the country of the t year when the project carbon reduction level meets certain conditions, And recycling the low-carbon equipment or materials in the recovery scrapping stage in the t-th year.
4. The method for optimizing carbon emission of a full life cycle transformer substation project according to claim 3, wherein in the step 2-1, The t-th year low-carbon building energy-saving benefit The specific formula is as follows: In the above-mentioned method, the step of, Building energy consumption value for t-th year without using low-carbon technology And building energy consumption values using low carbon technology A difference between; the price of the coal in the t year, and the heat value of the standard coal.
5. The method for optimizing carbon emission of a full life cycle transformer substation project according to claim 3, wherein in the step 2-1, Energy-saving benefit of t-th furnace structure The specific formula is as follows: In the above-mentioned method, the step of, The energy consumption difference value of the air conditioner is the annual energy consumption difference value of using the furnace surrounding structure and the traditional structure in the t th year.
6. The method for optimizing carbon emission of a full life cycle transformer substation project according to claim 3, wherein in the step 2-1, The solar energy utilization benefit of the t year The specific formula is as follows: In the above formula, F t is the solar energy annual irradiation quantity in the region of the t year, S is the lighting area of the solar photovoltaic array, eta is the conversion efficiency of the photovoltaic array, Reduced energy consumption for use of solar lighting systems in the t-th year.
7. The method for optimizing carbon emission of a full life cycle transformer substation project according to claim 3, wherein in the step 2-1, The t-th year low-carbon water-saving benefit The specific formula is as follows: In the above-mentioned method, the step of, Is the price of the water resource in the t-th year, The recovery quantity of the high-quality circulating water in the t th year is Q save-rain , and the recovery quantity of the rainwater collected in the t th year is Q save-rain .
8. The method for optimizing carbon emission of a full life cycle transformer substation project according to claim 3, wherein in the step 2-3, Carbon emission reduction of the t-th year of the project life cycle The specific formula is as follows: In the above-mentioned method, the step of, Carbon emission of the t th year of the production and transportation stage of material equipment, For the carbon emission of the t-th year of the engineering construction installation and debugging stage, In order to run the carbon emissions of the t-th year of the overhaul period, Carbon emissions for the t-th year of the disposal stage; carbon quota for project year t; voluntary emission reduction is carried out for the country verification of the t-th year of the project; Specifically, the carbon emission of the t-th year of the production and transportation stage of the material equipment The following formula is shown: In the above formula, J is the J-th material, and J is the type number of the materials; The method comprises the steps of (1) using the j-th material in the production and transportation stage of material equipment in the t-th year, wherein F j is the carbon emission factor for producing the j-th material, L is the first equipment, and L is the type number of the equipment; F l is the carbon emission factor of the first equipment, F i is the carbon emission factor of the unit distance of the i-th transportation mode; Carbon emission of the t-th year of the engineering construction installation and debugging stage The following formula is shown: In the above-mentioned method, the step of, The total engineering quantity of the t-th year of engineering construction; Carbon emission factor per engineering amount; the total quantity of single engineering installation in the t-th year of engineering installation; Carbon emission factors for unit single engineering installations; the total times of project debugging in the t th year; carbon emission factors for single project debugging; The total energy consumption of the project construction installation and debugging stage in the t th year; Carbon emission factor which is the unit energy consumption; The total engineering quantity of the temporary engineering in the t th year; Carbon emission factor for unit temporary engineering; carbon emission of the t th year of the operation and maintenance stage The following formula is shown: In the above formula, G is the G-th project, G is the total project number, The total operation energy consumption of the g-th engineering in the t year is obtained, F g is the carbon emission factor of the unit energy consumption of the g-th engineering in the operation process, Total energy consumption generated in overhauling or replacing the g-th project in the t-th year, Carbon emission factors for unit energy consumption of the g-th engineering in the overhaul or replacement stage; carbon emissions at t-th year of disposal stage such as The following formula: in the formula, K is the K-th waste, and K is the type number of waste in the waste disposal stage; The total amount of the kth waste in the t-th year of the disposal stage is F k , which is the carbon emission factor of the kth waste.
9. The method for optimizing design of project carbon emission of full life cycle transformer substation according to claim 1, wherein the constraint condition of the objective function max N PV of the maximum net present value of the project in step 3 comprises: The constraint of carbon emission of the low-carbon green project is as follows: Y c ≤Y GB In the formula, Y GB is a national carbon emission assessment standard for a low-carbon project, and Y c is the carbon emission reduction of the whole life cycle of the project; And the evaluation constraint of the low-carbon near-zero energy consumption project on the energy consumption of the engineering project is shown as follows: In the above-mentioned method, the step of, For the value of the heat supply energy consumption of the project operation stage, A heating energy consumption value meeting near zero energy consumption standard for the project operation stage; For the energy consumption value of refrigeration in the project operation stage, A refrigeration energy consumption value meeting near zero energy consumption standard for the project operation stage; for the illumination energy consumption value of the project operation phase, A lighting energy consumption value meeting near zero energy consumption standard for the project operation stage; for the integrated energy consumption value of the project operation stage, And (5) the comprehensive energy consumption value meeting the near zero energy consumption standard for the project operation stage.
10. The method for optimizing design of project carbon emission of full life cycle transformer substation according to claim 1, wherein the constraint condition of the objective function max N PV of the maximum net present value of the project in step 3 comprises: constraint between carbon emissions and cost is represented by the following formula In the above-mentioned method, the step of, Whether the jth low-carbon technology is selected for the t th year; Cost for using the j-th low-carbon technology in the t-th year; the method has the advantages of improving the efficiency of the project construction, along with the benefit brought by using the j-th low-carbon technology in the t-th year, C base being the basic cost of the project construction, C budget being the budget cost of the project construction; The recycling rate constraint is as follows: In the above, L garbage is the garbage generated in the project construction and recovery stage, the garbage generated in the operation stage is not contained, L waste is the waste generated in the project construction and recovery stage, The recycling rate of the building specified by the national standard; The utilization rate of the nearby used resources is as follows: In the formula, The resources used for the project in the construction stage come from the total resources in the range of 500km nearby, and Z all is the total resources used for the project in the use stage.

Description

Carbon emission optimization design method for full life cycle transformer substation project Technical Field The invention relates to the field of low-carbon construction of power grids, in particular to a full life cycle transformer substation project carbon emission optimization design method. In particular to a project carbon emission optimization design method of a full life cycle transformer substation with near zero energy consumption as a target. Background The traditional power grid project construction mode lacks full consideration and quantitative analysis on climate environment, new energy consumption, carbon emission and the like under new situation, the carbon emission generated by the method is increased year by year, the power grid project is made to advance towards a low-carbon near-zero energy consumption target, but the current near-zero energy consumption target assessment method mainly aims at the building industry, the full life cycle energy consumption, carbon emission and cost measuring and calculating method under the near-zero energy consumption target condition of the power industry is less, the quantitative analysis on whether the power grid project is low-carbon and near-zero energy consumption is difficult, difficulty is brought to how to improve the technology in the project to achieve the aim of reducing the energy consumption to achieve green economy, and a method capable of measuring and calculating the energy consumption and the carbon emission of the power grid project is needed to be provided. In the aspect of carbon emission measurement, the invention utilizes a hierarchical analysis method to perform stage-by-stage downward traceability on the whole life cycle to measure and calculate carbon emission and increment cost, ignores the association between single engineering items of the power grid engineering items, cannot accurately reflect the association between operation carbon and hidden carbon of the whole life cycle power grid engineering items, and causes larger deviation of calculated total carbon emission and cost data of the whole life cycle. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide an optimal design method for carbon emission of a full life cycle transformer substation project. The method comprises the steps of dismantling the whole life cycle power grid project based on system dynamics, dividing the whole life cycle power grid project into multi-stage single projects, strengthening the connection between the power attribute of the power grid project and the single projects, optimizing the cost and the carbon emission of the whole life cycle power grid project by adopting a 0-1 integer programming method, enabling the power grid project to develop towards the low-carbon near-zero energy consumption target, and providing a measuring and calculating technical method and a management and control means for power grid management and control and guiding the development of the green low-carbon project. In order to achieve the above purpose, the invention adopts the following technical scheme: the project carbon emission optimization design method for the full life cycle transformer substation is characterized by comprising the following steps of: Step 1, accounting the total cost of the carbon reduction technology of the green building, wherein the expression of the total cost C low-carbon of the carbon reduction technology of the green building is shown as follows: In the above, T is the whole life cycle of the project of the power grid engineering, T is the T-th year of the project, C low-carbon is the increment cost of reducing carbon emission in the whole life cycle, The incremental cost of carbon emissions is reduced for the t-th year of the material plant production and transportation stage,The incremental cost of carbon emission is reduced for the t-th year of the engineering construction installation and debugging stage,In order to reduce the incremental cost of carbon emissions in the t-th year of the service phase,The incremental cost of carbon emission is reduced for the t-th year of the waste disposal stage, i 0 is the discount rate; And 2, accounting the comprehensive benefit of the project life cycle, wherein the expression of the comprehensive benefit R all-carbon of the project life cycle is shown as follows: In the above formula, R all-carbon is the comprehensive benefit of the project life cycle, Economic benefit generated for project in the t-th year; Social benefits generated in the t-th year of the project; Environmental benefits generated in project year t; and 3, according to the total cost of the green building carbon reduction technology obtained in the step 1 and the comprehensive benefit of the project total life cycle obtained in the step 2, comparing and selecting the carbon reduction project of the power grid project total life cycle by using a 0-1 integer programming method, and obtai