A carbon emission intensity quantification and evaluation method for a whole life cycle of a substation and a system thereof

Abstract

The present application provides a kind of substation life cycle-oriented carbon emission intensity quantitative evaluation method and system thereof, method includes: obtaining the carbon emission statistical record of each life cycle stage of substation and is attributed to corresponding stage;Determine the constrained stage according to green low-carbon evaluation standard and bind stage threshold value;Engineering event influence interval on subsequent stage is calibrated based on equipment account and technical modification record, and stage influence coefficient is generated;The corrected carbon emission contribution is calculated in combination with the influence coefficient and carbon emission statistical record, and the life cycle carbon emission intensity quantitative result is obtained by normalization.The present application realizes the fine, standardization evaluation of the carbon emission intensity of substation, supports green low-carbon design selection and grade assessment, and improves the objectivity and comparability of evaluation result.

Description

Technical Field

[0001] This invention belongs to the field of data processing, and in particular relates to a method and system for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation. Background Technology

[0002] Substations have long lifecycles, with concentrated investments during construction, continuous energy consumption emissions during operation, and emissions from new equipment introduced during technological upgrades exhibiting a significant uneven distribution over time. Existing methods often employ independent accounting for each stage, making it difficult to depict the cross-stage impacts caused by equipment lifespan extension, functional replacement, or technological upgrades. This results in carbon emission intensity results being highly sensitive to the stage division method. Furthermore, substations contain diverse equipment types with significantly varying lifespans. Equipment replacement and technological upgrades can cause carbon emissions from some manufacturing and transportation processes to reappear in the later stages of the lifecycle. Existing evaluation methods lack an effective mechanism to establish a systematic link between such engineering activities and subsequent operational carbon emission performance, easily leading to structural biases in intensity indicators. Simultaneously, in actual engineering management, green and low-carbon substation evaluation standards and specifications typically impose constraints in the form of clauses, often serving as a basis for design review or post-project scoring. This disconnects them from the carbon emission quantification calculation process, resulting in evaluation results that, while numerically calculable, fail to logically reflect the actual role of standard constraints throughout the entire process. This weakens the application value of evaluation results in standard setting, scheme comparison, and engineering decision-making. Therefore, there is an urgent need for an assessment method that can quantify carbon emission intensity under a unified standard across the entire life cycle of substations and integrate green and low-carbon evaluation standards into the calculation process, in order to solve the problems of stage fragmentation, lack of cross-stage impact, and insufficient standard adaptability in existing technologies. Summary of the Invention

[0003] The purpose of this invention is to design a method and system for quantitative assessment of carbon emission intensity throughout the entire life cycle of substations. This method can comprehensively process carbon emissions and generate quantitative assessment results of carbon emission intensity that can be directly used for the evaluation of green and low-carbon substations, scheme comparison, and engineering consulting decisions.

[0004] To achieve the above objectives, a first aspect of the present invention provides a method for quantitatively assessing the carbon emission intensity of a substation throughout its entire life cycle, the method comprising: Obtain carbon emission statistics records for each stage of the substation's entire life cycle, and assign these carbon emission statistics records to the corresponding life cycle stage based on the project timeline, thus forming a basic description of carbon emissions throughout the entire life cycle. Based on the constraints related to carbon emission intensity in the green and low-carbon evaluation standard, it is determined whether each life cycle stage is subject to the standard, and the corresponding stage threshold is bound to the constrained life cycle stage to form a life cycle carbon emission description result subject to the standard. Based on equipment ledgers and technical transformation records, the impact range of engineering events occurring in each life cycle stage on subsequent life cycle stages is defined, and combined with the life cycle carbon emission description results constrained by the standard, the inter-stage impact coefficient of each life cycle stage on subsequent life cycle stages is generated. Based on the inter-stage impact coefficients and the carbon emission statistics, the corrected carbon emission contribution for each life cycle stage is calculated. After summarizing all the corrected carbon emission contributions, the total life cycle carbon emission is normalized to obtain the quantitative result of the substation's full life cycle carbon emission intensity.

[0005] Furthermore, the carbon emission statistics records include carbon emission data corresponding to the civil engineering quantity list and equipment procurement list during the construction phase, carbon emission data corresponding to the annual station power consumption during the operation phase, and carbon emission data corresponding to equipment replacement or expansion projects during the technical transformation phase.

[0006] Furthermore, the constraint clauses in the green and low-carbon evaluation standard are screened by standard version number, clause number and applicable object, and the corresponding stage thresholds are retrieved in the standard appendix according to the voltage level, station type and construction conditions of the substation.

[0007] Furthermore, the constrained lifecycle stage is identified by a stage constraint indicator, the value of which is determined based on whether the constraint clause explicitly applies to that lifecycle stage.

[0008] Furthermore, the engineering events include equipment commissioning, equipment replacement, equipment expansion, or the addition of reactive power compensation devices, and the impact range is determined by the effective time of the engineering event and the validity period of the corresponding equipment.

[0009] Furthermore, the calculation of the inter-stage impact coefficient introduces a stage constraint strength term as a weighting factor, which is determined by the relationship between the carbon emission statistics records of the corresponding life cycle stage and the stage threshold.

[0010] Furthermore, the calculation of the corrected carbon emission contribution includes: for each target life cycle stage, accumulating the product of the carbon emission statistics of all source life cycle stages and their inter-stage impact coefficients on the target life cycle stage.

[0011] Furthermore, the total basic carbon emissions over the life cycle are obtained by summing the carbon emission statistics belonging to each stage of the life cycle.

[0012] Furthermore, the quantitative results of the substation's carbon emission intensity throughout its entire life cycle are compared with the grading thresholds for carbon emission intensity throughout its entire life cycle set in the green and low-carbon evaluation standard to determine the evaluation level of the substation or to compare different design schemes.

[0013] In a second aspect, the present invention provides a system for quantitatively assessing the carbon emission intensity of a substation throughout its entire life cycle, the system comprising: The data processing module is used to obtain carbon emission statistics records for each stage of the substation's entire life cycle, and to assign the carbon emission statistics records to the corresponding life cycle stage according to the project time nodes, forming a basic description result of carbon emissions throughout the entire life cycle. The standard constraint solidification module is used to determine whether each life cycle stage is subject to the standard constraint based on the constraint clauses related to carbon emission intensity in the green and low-carbon evaluation standard, and to bind the corresponding stage threshold to the constrained life cycle stage to form a life cycle carbon emission description result subject to the standard constraint. The impact relationship construction module is used to define the impact range of engineering events occurring in each life cycle stage on subsequent life cycle stages based on equipment ledgers and technical transformation records, and generate the inter-stage impact coefficient of each life cycle stage on subsequent life cycle stages by combining the life cycle carbon emission description results constrained by the standard. The intensity quantification module is used to calculate the corrected carbon emission contribution for each life cycle stage based on the inter-stage influence coefficient and the carbon emission statistics record, and to normalize the total life cycle carbon emission based on the total life cycle carbon emission after summarizing all the corrected carbon emission contributions to obtain the quantification result of the carbon emission intensity of the substation throughout its entire life cycle.

[0014] The beneficial technical effects of the present invention are at least as follows: To address the aforementioned issues, this invention provides a method and system for quantitatively assessing carbon emission intensity throughout the entire lifecycle of substations. Its core lies in constructing an intelligent mechanism capable of simultaneously sensing, understanding, and providing feedback on student behavioral paths and spatial exploration states. During the learning process, the system can collect and analyze holographic interactive data in real time, establishing a structured relationship model between student operational behaviors and learning objectives. This allows for the identification of potential error paths and misunderstandings of causal relationships, dynamically generating personalized feedback to guide students in reconstructing their learning paths. Simultaneously, the system continuously models the student's interactive trajectory and attentional region distribution in three-dimensional space, identifying key knowledge nodes that were not fully addressed or overlooked during the cognitive process, and generating a spatially hierarchical guidance mechanism based on this. Unlike traditional feedback methods based on static assessment and result judgment, this invention emphasizes the integrated feedback capability of process interpretability and spatial guidance, achieving a leap from post-evaluation to a real-time simulation teaching model.

[0015] Through the above mechanisms, the system can adaptively simulate the teaching process, guide cognitive transfer, and dynamically adjust the pace of content, truly achieving a three-in-one teaching experience of intelligence, immersion, and interaction, and significantly improving students' learning efficiency and depth of understanding. Attached Figure Description

[0016] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0017] Figure 1 This is a flowchart of a method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation, as described in this invention.

[0018] Figure 2 This is a framework diagram of a carbon emission intensity quantitative assessment system for the entire life cycle of a substation, as described in this invention. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In one or more embodiments, such as Figure 1 As shown, a method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation is disclosed, the method comprising the following: S1: Obtain carbon emission statistics records for each stage of the substation's entire life cycle, and assign the carbon emission statistics records to the corresponding life cycle stage according to the project time nodes to form a basic description result of carbon emissions throughout the entire life cycle; Specifically, the goal of this step is to organize and consolidate carbon emission-related engineering information, which was originally scattered across different business segments and time phases, into a unified and continuous lifecycle-based description, ensuring that all subsequent analyses and calculations are based on the same factual foundation. The "basic description" here emphasizes a structured expression of objective engineering facts, rather than an evaluation or judgment of carbon emission levels. In practice, the first step is to obtain basic data related to the substation from the existing engineering management system. For the construction and subsequent technical upgrade phases, engineering statistical information is typically obtained through design documents, as-built documentation, or asset management systems. This includes, for example, bills of quantities for civil engineering works, procurement lists for primary and secondary equipment, and records of equipment replacement, expansion, or modification generated during operation. This data is solidified after project completion, and the corresponding carbon emission statistics are generally presented in summary tables or appendices, directly reflecting the carbon emissions generated by construction or equipment upgrades at a specific stage. For the operation and maintenance phase, annual or monthly station power consumption statistics are obtained through the operation management system or manual statistical reports. These records are continuously updated in actual production, but in this step, they are collected based on the existing statistical period.

[0021] After data collection, all obtained carbon emission-related statistical records were systematically organized. The organization followed the principle of "one engineering fact corresponding to one statistical record." For example, one main transformer installation corresponds to one construction phase statistical record, one main transformer replacement corresponds to one technical upgrade phase statistical record, and the station's electricity consumption in a given year corresponds to one operation phase statistical record. Subsequently, based on the project timeline information and equipment commissioning / upgrade times, each statistical record was clearly assigned to a specific stage in its lifecycle. For instance, the civil engineering and equipment installation work completed before commissioning of a substation corresponds to the construction phase statistical record; the annual energy consumption statistical records formed over several consecutive years after commissioning correspond to the operation phase; and the main transformer replacement project implemented in the tenth year of operation corresponds to the technical upgrade phase statistical record. In this way, all statistical records are clearly and systematically arranged along the lifecycle timeline.

[0022] After the phase attribution is completed, the compiled carbon emission statistics records for each phase are organized into a single lifecycle carbon emission basic description object. Within this object, each lifecycle phase corresponds to several carbon emission statistics records, maintaining their original statistical relationships without merging or conversion. Furthermore, to facilitate referencing at the overall lifecycle level, the basic total lifecycle carbon emissions are provided within this description object. It is obtained by summarizing the carbon emission statistics at each stage: ; in, This represents the basic statistical results of the substation's carbon emissions over its entire life cycle; Indicates the first in the life cycle The carbon emission statistics for each stage are directly derived from engineering statistics generated during the construction, operation, or technological upgrading stages. The number of lifecycle stages is determined by the substation's lifecycle segmentation method. Through the above process, the final comprehensive lifecycle carbon emission baseline description includes a complete sequence of lifecycle stages and corresponding carbon emission statistics for each stage. Total life cycle carbon emissions The results also include the stage affiliation of each statistical record within its lifecycle. This result is stored as a single object and used as a unified input in subsequent steps, ensuring that the introduction of evaluation criteria and the quantification of carbon emission intensity are always based on the same set of engineering facts, thus guaranteeing the consistency and feasibility of the analysis process.

[0023] S2: Based on the constraints related to carbon emission intensity in the green and low-carbon evaluation standard, determine whether each life cycle stage is subject to the standard constraints, and bind the corresponding stage thresholds to the constrained life cycle stages to form a life cycle carbon emission description result subject to the standard constraints. Specifically, this step builds upon the life-cycle carbon emission baseline description results from Step One, focusing on the engineering problem of "how evaluation standards can play a binding role in subsequent quantification processes." It transforms the clauses related to carbon emission intensity in the green and low-carbon evaluation standards into constraint elements that can be directly attached to the results of Step One. This ensures that subsequent steps, when dealing with cross-stage impact relationships and intensity quantification, can use the same set of standard boundaries as a unified premise. The core actions here are "clause selection—scope determination—threshold implementation—constraint element solidification," transforming the standard from textual form into a computable form and establishing a stable alignment with life-cycle stage data.

[0024] The input is the basic description of the life cycle carbon emissions output from step one, which includes the life cycle stage sequence and carbon emission statistics for each stage. Total life-cycle carbon emissions At the same time, the green and low-carbon evaluation standard text and its supporting tables (such as threshold tables and classification tables given by voltage level, station type or construction conditions) are introduced for this task. The standards are derived from the enterprise standard library / system document library or the standard version document specified in the project task book, and are usually stored in the enterprise document management system in the form of searchable electronic documents.

[0025] The solidification of standard constraints begins with the selection of the standard version and set of clauses. In engineering, the standard version number and scope of application are typically determined when the evaluation task is initiated. For example, the same standard may have revised versions in different years. This step writes the selected version number into the constraint object as the standard's identity information. Subsequently, the standard clauses are screened, with the screening target limited to clause types that form hard constraints or quantifiable boundaries with carbon emission intensity. Common forms include: tiered thresholds, upper limit requirements, range requirements, and quantitative indicators strongly related to operational energy consumption or engineering construction. Clause screening uses a three-column structure of "clause number—clause title—key fields." Key fields can be manually retrieved from the company's document system using keywords, such as "carbon emission intensity," "life cycle," and "operational energy consumption." This registration result is saved in a structured list format for easy subsequent auditing and reuse.

[0026] After completing the clause screening, align the clauses with the lifecycle stages in Step One. This alignment is achieved using a "Clause Applicable Scope – Lifecycle Stage" mapping table: first, assign clauses based on their explicitly stated applicable scope (e.g., "Construction Stage," "Operation Stage," "Renovation Stage," "Full Lifecycle"); for clauses with cross-stage descriptions, determine their corresponding statistical scope based on the indicator definitions provided in the standard appendix, and then bind them to the stage statistics from Step One. or overall statistics To ensure that this alignment can be directly referenced in subsequent calculations, this step solidifies a stage constraint indicator at each lifecycle stage. This is used to identify whether the statistical value in this stage has a clear constraint boundary under the selected standard: ; in, The value is directly generated from the "Term-Stage Mapping Table"; The stage carbon emission statistics from step one are used, and their sources are engineering statistics, operational statistics reports, or asset ledger summary records.

[0027] After solidifying the "whether it is constrained" criteria, the numerical boundaries in the standard are further applied to each constrained stage to form stage thresholds. The threshold determination process employs a "conditional retrieval—table value retrieval—record archiving" workflow: Substation voltage level, station type (e.g., indoor / outdoor, GIS / conventional), and construction conditions (e.g., new construction / expansion / renovation) are used as retrieval conditions. The corresponding rows and columns are located in the standard appendix, and the threshold is retrieved. When the standard provides multiple levels in a tiered format, the target level is determined according to the task description or evaluation requirements, and its level identifier is recorded. Threshold and This information is also written into the constraint object, allowing subsequent steps to directly reference "which stages are constrained and what are the boundaries of the constrained stages." To facilitate a unified understanding of constraint pressure in subsequent steps when handling cross-stage impacts and quantifying intensity, this step also generates a threshold-based stage constraint intensity term. This is used to establish a monotonic mapping relationship between stage statistics and standard boundaries: ; in, Representation phase The constraint strength term is used as a reference input for the "standard-constrained stage" during quantization in subsequent steps; Representation phase The threshold or boundary value corresponding to the selected standard and conditions is derived from the table search results in the standard appendix. This refers to the stage carbon emission statistics in step one; This is the stage constraint indicator that is fixed in this step. The mapping uses a logarithmic form, which is beneficial in engineering to maintain a stable numerical expression when stage statistics fluctuate across orders of magnitude, while also preserving the stability of the variable. The constraint characterizes the property of increasing monotonically.

[0028] A substation scenario provides an implementation example to aid understanding of the operational path: For instance, in a newly built 220kV substation, step one has already generated statistical values ​​for the construction phase, annually summarized statistical values ​​for the operation phase, and statistical values ​​for a single technical upgrade phase. This step selects the applicable green and low-carbon evaluation standard version for this voltage level from the enterprise standard library, filters out clauses that provide thresholds for operation-related intensity indicators, and retrieves and writes the operation phase thresholds from the standard appendix using "220kV—New Construction—Substation Type Conditions" as the search key. The corresponding running phase Set to 1; for clauses that only provide boundaries in a full life cycle perspective, bind their boundaries to subsequent stages using the overall perspective or the summary perspective, and record the corresponding relationship in the constraint object. Through this example process, the clause text, threshold table, and life cycle stage statistics from step one form a directly referable structured binding. The output is a life cycle carbon emission description result object constrained by the green and low-carbon evaluation standard, which fully contains the data from step one. and And added stage constraint indicators. Stage threshold With stage constraint strength term Simultaneously, a list of selected standard version numbers and clause numbers is recorded as constraint identity information. This output is passed as a whole object to step three for use.

[0029] S3: Based on the equipment ledger and technical transformation records, define the impact range of engineering events occurring in each life cycle stage on subsequent life cycle stages, and combine the life cycle carbon emission description results constrained by the standard to generate the inter-stage impact coefficient of each life cycle stage on subsequent life cycle stages. Specifically, the input for this step is the life-cycle carbon emission description results constrained by the green and low-carbon evaluation standards, which is the output of step two and includes at least the stage carbon emission statistics. Total life cycle carbon emissions Stage constraint indicator Stage threshold and stage constraint strength term Simultaneously, the equipment ledger and technical upgrade records corresponding to the substation are read to determine the scope and target of cross-stage impact relationships. The equipment ledger and technical upgrade records are usually exported from the asset management system, and the fields include equipment code, equipment category, commissioning time, decommissioning time, change type (addition, replacement, expansion), change effective time, and change description. The technical upgrade records usually also include project name, scope of modification, and acceptance time, which can accurately pinpoint engineering events to the life cycle stage sequence.

[0030] The generation of cross-stage impact relationships begins with the construction of an "Engineering Event List." First, equipment ledgers and technical upgrade records are sorted by time to form an event sequence. Each event must include at least an index of its lifecycle stage, the event type, and the associated equipment category. The event stage index is obtained by aligning the "Event Effective Time" with the lifecycle stage sequence in step two. For example, if a main transformer replacement acceptance occurs on stage [number missing], the process is as follows: [details missing]. If the event occurs during a certain phase, then the event is marked as having occurred during that phase. If an event spans multiple phases (e.g., a phased technical upgrade project), it is broken down into multiple events based on acceptance milestones, ensuring each event corresponds to a single phase index. Subsequently, the event's "impact range is defined." In engineering practice, the effective period after equipment activation is typically used to define the impact range: for example, after a main transformer replacement, the impact range covers the continuous operation phase after its activation until the next similar replacement or the end of its lifecycle; after the addition of a reactive power compensation device, the impact range covers the continuous operation phase after its commissioning; the impact range for civil engineering and primary equipment installation events covers the continuous operation phase after commissioning. After the impact range is defined, each event occurring in a phase... Each event will receive a set of subsequent stages to carry out the distribution of its cross-stage impact.

[0031] After the event-level impact intervals are defined, they are aggregated to the stage level to obtain the "stage". "A candidate set of impacts on subsequent stages." Within this set, stage constraint elements are used to determine the priority and constraint boundaries of cross-stage relationships. Used in the identification phase Whether it falls within the scope of direct application of standard constraints; and The comparison relationship is used to determine the stage. Is it located in a sensitive region near the standard boundary? Used in the characterization stage The constraint strength under the green and low-carbon evaluation standard constraint system is used as a weighting factor in this step when allocating cross-stage impacts, reflecting the role of standard constraints in constructing cross-stage impact relationships. To make this information directly usable in subsequent steps, this step compresses it into inter-stage impact coefficients. Its meaning is "occurring in the stage". Carbon emissions and corresponding engineering events, for the stage The percentage of the impact exerted by carbon emission statistics is calculated using the method of "standard constraint strength × life cycle normalization × smooth distribution within the effective period". ; in, Representation phase stage The cross-stage impact coefficient, Taken from stage The set of subsequent stages corresponding to the influence interval, for any fixed stage Its corresponding influence range Inter-stage influence coefficient within The normalization process forms a percentage structure, which is used to represent stages. The distribution of carbon emissions within its impact range; The stage constraint indication from step two is determined based on the constraint range of the stage caliber according to the standard clauses. The stage constraint strength term from step two is derived from the stage statistics in step two. With stage threshold The standard constraint strength shall be determined jointly and used in this step to reflect the standard constraint strength. The carbon emission statistics used in step two are derived from engineering statistics and summary records during the construction / operation / renovation phases. The total life cycle carbon emissions used in step two are used to normalize the stage impacts on a life cycle scale, so that the stage impacts of substations of different sizes can be characterized with comparable weights. This indicates the stage determined by the equipment ledger and technical upgrade records. The set of subsequent stages corresponding to the affected interval is generated by "aligning the stage indices according to the event's effective time, and then adding the stage indices covered by the device's validity period to the set," for example, the main transformer replacement event. Typically, it covers the continuous operation phase after replacement is completed until the end of the product lifecycle or the next replacement phase. The index term is based on phase intervals. This results in a smooth attenuation, making the impact in engineering more consistent with the pattern of "continuous effect on subsequent stages after the modification is completed, gradually attenuating over time or being covered by subsequent modifications"; the denominator normalizes the distribution within the impact interval, ensuring that the impact is consistent across the same stage. The influence forms a proportion structure that can be directly invoked within its influence range.

[0032] In the context of a substation, the way this relationship is constructed can be understood according to the engineering process: for example, at a certain substation... The main transformer replacement was implemented and passed acceptance. The equipment ledger recorded the commissioning time of the main transformer, corresponding to multiple subsequent lifecycle stages. The standard terms and conditions stipulate threshold requirements for energy consumption / intensity; step two has solidified the constraint information for this stage. , and This step defines the impact range of the event. And calculate the impact on each subsequent operational stage. This structurally connects "the inputs and behaviors that occur during the renovation phase" to "the statistical performance in the subsequent operation phase." For example, the impact range of a new reactive power compensation event can also be determined by the set of phases covered by the equipment's operational validity period; when a certain phase... Compared to The proportion is relatively low At higher levels, This still reflects the importance of this stage under standard constraints, thus avoiding the need to determine the cross-stage impact weight solely based on the size of the project.

[0033] The output is a description of the cross-stage carbon emission impact relationships, the core of which is the set of inter-stage impact coefficients. It maintains an index relationship consistent with the lifecycle stage sequence in the input; the output object internally retains the index relationship for each... The generation basis (corresponding equipment ledger entries and technical modification record entry numbers) enables subsequent steps to reference [the relevant data]. This allows for tracing back to specific engineering events and their effective periods. The output object is then passed as a whole to step four for use.

[0034] S4: Based on the inter-stage impact coefficient and the carbon emission statistics, calculate the corrected carbon emission contribution for each life cycle stage, and after summarizing all the corrected carbon emission contributions, normalize them with the total life cycle carbon emission base to obtain the quantitative result of the substation's full life cycle carbon emission intensity. Specifically, this step, building upon the previous steps of "lifecycle carbon emission factual description," "green and low-carbon evaluation standard constraint solidification," and "generation of cross-stage carbon emission impact relationships," performs the final intensity quantification and evaluation application conversion operation. The key engineering objective is to transform the multi-layered structured information generated in the previous steps into a quantitative result that can be directly used for evaluation, benchmarking, and decision-making, ensuring that the lifecycle carbon emission intensity reflects both the actual engineering evolution process and conforms to the judgment logic of green and low-carbon evaluation standards. The input is the cross-stage carbon emission impact relationship description result output from step three. This result is read and used directly as a whole object, containing stage carbon emission statistics. Total life cycle carbon emissions Stage constraint indicator Stage threshold Stage constraint strength item and inter-stage influence coefficients The variables mentioned above all retain their definitions and indexing methods from the preceding steps, without introducing new stage division rules or new statistical calibers. In the specific implementation process, the cross-stage impact relationships are first explored using the life cycle stage sequence as the main thread. This exploration process is conducted stage by stage. For the target phase, iterate through all satisfied... The source stage and based on For the corresponding stage carbon emission statistics Perform weighted aggregation. In engineering terms, this process can be understood as: in forming the first... When calculating the "equivalent carbon emission contribution" for a stage, we not only consider the statistical value of that stage itself, but also the carbon emission contributions from previous stages that continue to affect that stage through equipment life extension, technological upgrades, or changes in operating methods.

[0035] At the implementation level, the following operational sequence can be used to complete the cross-phase deployment: First, establish a list to store the "phase-adjusted carbon emission contributions" according to the phase sequence; then, for each target phase... Initialize its correction contribution value to zero; then from stage arrive Read sequentially With the corresponding ,Will Accumulate to stage The correction contribution is included. This process can be implemented in engineering using nested loops or matrix multiplication, but this step emphasizes only the computational logic without specifying the concrete implementation tool. After completing the above stage-level correction contribution calculations, a "cross-stage corrected carbon emission distribution" covering all life cycle stages is obtained. This distribution already incorporates standard constraint strength information because... The construction process has already introduced and Therefore, carbon emission contributions from the higher levels of standard constraints account for a more significant proportion in the revised results. This is particularly important in engineering; for example, when comparing different technological upgrade schemes, the long-term impact of upgrades located within the standard's sensitive range can be fully reflected in the final intensity results.

[0036] After obtaining the stage contribution distribution after cross-stage correction, a unified normalization process is further performed on the life cycle scale to form the quantitative result of carbon emission intensity throughout the entire life cycle. This result is achieved by summing up the revised contributions for all stages and using the total lifecycle carbon emissions as the baseline. As a normalization benchmark, we obtain: ; in, This represents the quantitative result of carbon emission intensity throughout the entire life cycle of a substation; This represents the coefficient of inter-stage influence relationship formed in step three; This represents the stage carbon emission statistics formed in step one and used in steps two and three; This represents the basic total carbon emissions over the life cycle, the sources of which and the calculation method have been determined in step one.

[0037] In formation Then, the evaluation and application conversion operation is carried out directly based on the constraints of the green and low-carbon evaluation standards that have been solidified in step two. Specifically, this can be done by... By comparing the substation's evaluation level with the grading thresholds or ranges set in the standard for carbon emission intensity throughout its entire life cycle, the corresponding evaluation level can be determined. In a scheme comparison scenario, the above quantitative process can be performed separately for different design schemes or technical upgrade schemes, resulting in multiple... The values ​​are then used to rank or select the best options. Since all schemes are calculated under the same standard constraints and cross-stage influence framework, the comparison results have a consistent basis.

[0038] In one or more embodiments, such as Figure 2 As shown, a quantitative assessment system for carbon emission intensity throughout the entire life cycle of a substation is disclosed, the system comprising: The data processing module is used to obtain carbon emission statistics records for each stage of the substation's entire life cycle, and to assign the carbon emission statistics records to the corresponding life cycle stage according to the project time nodes, forming a basic description result of carbon emissions throughout the entire life cycle. The standard constraint solidification module is used to determine whether each life cycle stage is subject to the standard constraint based on the constraint clauses related to carbon emission intensity in the green and low-carbon evaluation standard, and to bind the corresponding stage threshold to the constrained life cycle stage to form a life cycle carbon emission description result subject to the standard constraint. The impact relationship construction module is used to define the impact range of engineering events occurring in each life cycle stage on subsequent life cycle stages based on equipment ledgers and technical transformation records, and generate the inter-stage impact coefficient of each life cycle stage on subsequent life cycle stages by combining the life cycle carbon emission description results constrained by the standard. The intensity quantification module is used to calculate the corrected carbon emission contribution for each life cycle stage based on the inter-stage influence coefficient and the carbon emission statistics record, and to normalize the total life cycle carbon emission based on the total life cycle carbon emission after summarizing all the corrected carbon emission contributions to obtain the quantification result of the carbon emission intensity of the substation throughout its entire life cycle.

[0039] It is worth noting that the specific workflow of the carbon emission intensity quantification assessment system for the entire life cycle of substations provided in this embodiment of the invention is the same as that of the carbon emission intensity quantification assessment method for the entire life cycle of substations described in the above embodiment, and will not be repeated here.

[0040] This invention also provides a device for quantitatively assessing carbon emission intensity throughout the entire lifecycle of a substation, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the steps described in the above embodiment of a method for quantitatively assessing carbon emission intensity throughout the entire lifecycle of a substation. Figure 1 The steps S1 to S4 described above; or, when the processor executes the computer program, it implements the functions of each module in the above system embodiments.

[0041] For example, the computer program may be divided into one or more modules, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in the device for quantifying carbon emission intensity throughout the entire life cycle of a substation.

[0042] The aforementioned carbon emission intensity quantification assessment device for the entire life cycle of a substation can be a computing device such as a desktop computer, laptop, handheld computer, or cloud server. This device may include, but is not limited to, processors and memory. Those skilled in the art will understand that the device may also include input / output devices, network access devices, buses, etc.

[0043] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. This processor is the control center of the substation carbon emission intensity quantification assessment device, connecting all parts of the device via various interfaces and lines.

[0044] The memory can be used to store the computer program and / or modules. The processor, by running or executing the computer program and / or modules stored in the memory and calling the data stored in the memory, realizes various functions of the carbon emission intensity quantitative assessment device for the entire life cycle of a substation. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function, etc.; the data storage area may store data created based on the operation of the air conditioning controller, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital card (SD card), flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0045] The module integrated into the carbon emission intensity quantification assessment equipment for the entire life cycle of substations, if implemented as a software functional unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0046] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0047] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for quantitatively assessing the carbon emission intensity of substations throughout their entire life cycle, characterized in that, The method includes: Obtain carbon emission statistics records for each stage of the substation's entire life cycle, and assign these carbon emission statistics records to the corresponding life cycle stage based on the project timeline, thus forming a basic description of carbon emissions throughout the entire life cycle. Based on the constraints related to carbon emission intensity in the green and low-carbon evaluation standard, it is determined whether each life cycle stage is subject to the standard, and the corresponding stage threshold is bound to the constrained life cycle stage to form a life cycle carbon emission description result subject to the standard. Based on equipment ledgers and technical transformation records, the impact range of engineering events occurring in each life cycle stage on subsequent life cycle stages is defined, and combined with the life cycle carbon emission description results constrained by the standard, the inter-stage impact coefficient of each life cycle stage on subsequent life cycle stages is generated. Based on the inter-stage impact coefficients and the carbon emission statistics, the corrected carbon emission contribution for each life cycle stage is calculated. After summarizing all the corrected carbon emission contributions, the total life cycle carbon emission is normalized to obtain the quantitative result of the substation's full life cycle carbon emission intensity.

2. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The carbon emission statistics records include carbon emission data corresponding to the civil engineering quantity list and equipment procurement list during the construction phase, carbon emission data corresponding to the annual station power consumption during the operation phase, and carbon emission data corresponding to equipment replacement or expansion projects during the technical transformation phase.

3. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The constraints in the green and low-carbon evaluation standard are screened by standard version number, clause number and applicable objects, and the corresponding stage thresholds are retrieved from the standard appendix based on the voltage level, station type and construction conditions of the substation.

4. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The constrained lifecycle phase is identified by a phase constraint indicator, the value of which is determined based on whether the constraint clause explicitly applies to that lifecycle phase.

5. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The engineering events include equipment commissioning, equipment replacement, equipment expansion, or the addition of reactive power compensation devices. The impact range is determined by the effective time of the engineering event and the validity period of the corresponding equipment.

6. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The calculation of the inter-stage impact coefficient introduces a stage constraint strength term as a weighting factor, which is determined by the relationship between the carbon emission statistics records of the corresponding life cycle stage and the stage threshold.

7. The method for quantitative assessment of carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The calculation of the modified carbon emission contribution includes: for each target life cycle stage, accumulating the carbon emission statistics of all source life cycle stages and their inter-stage impact coefficients on the target life cycle stage.

8. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The total baseline carbon emissions over the life cycle are obtained by summing the carbon emission statistics belonging to each stage of the life cycle.

9. The method for quantitatively assessing carbon emission intensity throughout the entire life cycle of a substation as described in claim 1, characterized in that, The quantitative results of the substation's full life cycle carbon emission intensity are used to compare with the full life cycle carbon emission intensity grading thresholds set in the green and low-carbon evaluation standards to determine the substation's evaluation level or to compare different design schemes.

10. A quantitative assessment system for carbon emission intensity throughout the entire life cycle of a substation, characterized in that, The system includes: The data processing module is used to obtain carbon emission statistics records for each stage of the substation's entire life cycle, and to assign the carbon emission statistics records to the corresponding life cycle stage according to the project time nodes, forming a basic description result of carbon emissions throughout the entire life cycle. The standard constraint solidification module is used to determine whether each life cycle stage is subject to the standard constraint based on the constraint clauses related to carbon emission intensity in the green and low-carbon evaluation standard, and to bind the corresponding stage threshold to the constrained life cycle stage to form a life cycle carbon emission description result subject to the standard constraint. The impact relationship construction module is used to define the impact range of engineering events occurring in each life cycle stage on subsequent life cycle stages based on equipment ledgers and technical transformation records, and generate the inter-stage impact coefficient of each life cycle stage on subsequent life cycle stages by combining the life cycle carbon emission description results constrained by the standard. The intensity quantification module is used to calculate the corrected carbon emission contribution for each life cycle stage based on the inter-stage influence coefficient and the carbon emission statistics record, and to normalize the total life cycle carbon emission based on the total life cycle carbon emission after summarizing all the corrected carbon emission contributions to obtain the quantification result of the carbon emission intensity of the substation throughout its entire life cycle.

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