Comprehensive evaluation system and method for power grid infrastructure project

Abstract

The invention provides a power grid infrastructure project comprehensive evaluation system and method, and belongs to the technical field of project evaluation. The system comprises a project information acquisition module used for extracting project initial parameters of a power grid infrastructure project from early planning data of the power grid infrastructure project; the subsystem division evaluation module is used for performing pre-construction evaluation on each subsystem in the power grid infrastructure project and determining planning design, equipment requirements and resource allocation of each subsystem; the cross-subsystem collaborative analysis module is used for evaluating whether the spatial layout and resource allocation of each subsystem in the construction process have conflicts or not; and the construction risk prediction module is used for analyzing a construction delay risk and / or a resource scheduling conflict risk based on the conflict evaluation result, and adjusting a construction sequence and / or resource scheduling of the power grid infrastructure project. According to the method, the construction process can be more flexible, the resource utilization rate is optimized, and the controllability and the implementation success rate of a project are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of project evaluation, and particularly to a comprehensive evaluation system and method for power grid infrastructure projects. Background Art

[0002] With the continuous development of power grid infrastructure construction, the complexity and scale of the power system are gradually increasing. Power grid infrastructure projects usually cover multiple subsystems such as transmission subsystems, distribution subsystems, and energy storage subsystems, involving a large amount of equipment installation, resource allocation, and construction management. Traditional evaluation methods for power grid infrastructure projects often rely on overall macro planning and extensive management models, lacking refined evaluation of the complex dependencies between individual subsystems. This evaluation method not only makes it difficult to identify potential construction bottlenecks and resource conflicts at the early stage of the project but also easily causes delays in the overall construction progress and cost overruns of the project.

[0003] During the actual construction process, there is often a high degree of interdependence between the transmission subsystem, the distribution subsystem, and the energy storage subsystem. For example, the construction progress of the distribution subsystem may depend on the completion of equipment installation in the transmission subsystem, and the deployment of the energy storage subsystem requires stable power connection in the distribution subsystem. Therefore, coordinated work and resource sharing between individual subsystems during the construction process are crucial, and any delay or resource scheduling problem in one subsystem may affect the progress of the entire project.

[0004] Existing power grid infrastructure project evaluation systems usually lack targeted analysis means when dealing with cross-system coordination problems, and are unable to effectively predict conflicts and construction risks between subsystems, especially insufficient in identifying conflicts in terms of resource allocation and equipment requirements. This leads to the situation that during the actual construction process, multiple subsystems are likely to compete for limited resources simultaneously, or construction delays at key nodes affect the construction progress of other systems, ultimately resulting in an extension of the overall project duration and an increase in construction costs. Summary of the Invention

[0005] Embodiments of the present invention provide a comprehensive evaluation system and method for power grid infrastructure projects to solve the problem of effectively predicting conflicts and construction risks between subsystems in power grid infrastructure projects.

[0006] In a first aspect, embodiments of the present invention provide a comprehensive evaluation system for power grid infrastructure projects, including:

[0007] A project information collection module, configured to extract project initial parameters of a power grid infrastructure project from the preliminary planning data of the power grid infrastructure project;

[0008] A subsystem division evaluation module, which is used to conduct pre-construction evaluations on each subsystem in the grid infrastructure project based on the initial project parameters of the grid infrastructure project, and determine the planning and design, equipment requirements, and resource allocation of each subsystem;

[0009] A cross-subsystem collaboration analysis module, which is used to evaluate whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements, and resource allocation of each subsystem;

[0010] A construction risk prediction module, which is used to analyze the construction delay risk and / or resource scheduling conflict risk based on the conflict evaluation results, and adjust the construction sequence and / or resource scheduling of the grid infrastructure project.

[0011] In a possible implementation, the preliminary planning data includes project planning documents, the initial project parameters include the project geographical location, electricity demand budget, project scale, and project budget data, and the subsystems of the grid infrastructure project include a transmission subsystem, a distribution subsystem, and an energy storage subsystem;

[0012] The subsystem division evaluation module includes:

[0013] A transmission subsystem evaluation unit, which is used to determine the substation layout, transmission line path, line load capacity, and transmission equipment model of the transmission subsystem based on the project geographical location, electricity demand budget, and project scale, and generate a transmission equipment requirement list and a transmission resource allocation plan;

[0014] A distribution subsystem evaluation unit, which is used to determine the distribution network topology, distribution equipment model, and number of distribution equipment of the distribution subsystem based on the electricity demand budget and project scale, and generate a distribution equipment requirement list and a distribution resource allocation plan;

[0015] An energy storage subsystem evaluation unit, which is used to determine the energy storage equipment type, energy storage equipment capacity, energy storage equipment installation location, and energy storage equipment operation strategy of the energy storage subsystem based on the project scale and project budget data, and generate an energy storage equipment requirement list and an energy storage resource allocation plan.

[0016] In a possible implementation, the cross-subsystem collaboration analysis module is specifically used for:

[0017] Based on the substation layout, transmission line path, distribution network topology, and energy storage equipment installation location, determine whether there are overlapping areas in the construction sites of each subsystem.

[0018] In a possible implementation, the initial project parameters also include the construction period, and the construction period includes the planned start time, multiple phased progress nodes, and the expected completion time; the cross-subsystem collaboration analysis module is also used for:

[0019] Perform a correlation analysis on the transmission resource allocation plan, distribution resource allocation plan, and energy storage resource allocation plan, simulate the construction progress of each subsystem, determine whether there are conflicts in the equipment resource requirements of the transmission subsystem, distribution subsystem, and energy storage subsystem at the same time period, and identify the key nodes that may cause construction delays in each phased progress node.

[0020] In a possible implementation, the cross-subsystem collaborative analysis module is specifically used for:

[0021] Regard the planning and design, equipment requirements, and resource allocation of each subsystem in different time periods as different transaction items;

[0022] Calculate the support and confidence between each transaction item, and measure the frequency of each transaction item occurring simultaneously in each subsystem;

[0023] Based on the rules with high support and confidence, identify the key nodes where there are conflicts between the planning and design, equipment requirements, and resource allocation of each subsystem during the construction process.

[0024] In a possible implementation, the formula for calculating the support is:

[0025]

[0026] Among them, X is the transaction item, Support(X) is the support of the transaction item X, T is the set of transaction items, is the number of times X occurs within a certain time period, and |T| is the total number of transaction items;

[0027] The formula for calculating the confidence is:

[0028]

[0029] Among them, X is the antecedent transaction item, Y is the consequent transaction item associated with X, is the probability that if the transaction item X occurs, the transaction item Y will also occur, Support(X∪Y) represents the support of X and Y occurring simultaneously, and Support(X) represents the support of X occurring.

[0030] In a possible implementation, the construction risk prediction module is specifically used for:

[0031] If the key node of a certain subsystem is affected by the delay of another subsystem, resulting in a lag in the overall construction progress, it is determined that there is a risk of delivery delay in the grid infrastructure project;

[0032] If multiple subsystems request the same resource at the same time period and the resource is insufficient, it is determined that there is a risk of resource scheduling conflict during this time period.

[0033] In a possible implementation, the construction risk prediction module is further configured to:

[0034] If there is a risk of delivery delay in the grid infrastructure project, adjust the construction sequence of each subsystem;

[0035] If there is a risk of resource scheduling conflict in the grid infrastructure project, adjust the time period for each subsystem to request the resource, or increase the supply of the resource.

[0036] In a second aspect, an embodiment of the present invention provides a comprehensive evaluation method for grid infrastructure projects, including:

[0037] The project information collection module extracts the project initial parameters of the grid infrastructure project from the preliminary planning data of the grid infrastructure project;

[0038] The subsystem division and evaluation module conducts a pre-construction evaluation of each subsystem in the grid infrastructure project based on the project initial parameters of the grid infrastructure project, and determines the planning design, equipment requirements, and resource allocation of each subsystem;

[0039] The cross-subsystem collaboration analysis module evaluates whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning design, equipment requirements, and resource allocation of each subsystem;

[0040] The construction risk prediction module analyzes the construction delay risk and / or resource scheduling conflict risk based on the conflict evaluation results, and adjusts the construction sequence and / or resource scheduling of the grid infrastructure project.

[0041] The embodiment of the present invention provides a comprehensive evaluation system and method for grid infrastructure projects, which extracts project initial parameters by using the preliminary planning data of the grid infrastructure project, determines the planning design, equipment requirements, and resource allocation of each subsystem, then evaluates the spatial layout and resource allocation of each subsystem, and further specifically analyzes the construction delay risk and resource scheduling conflict risk of the overall grid infrastructure project, and makes adjustments for various risks, making the construction process more flexible, optimizing the resource utilization rate, and improving the controllability and implementation success rate of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 is a schematic structural diagram of the comprehensive evaluation system for grid infrastructure projects provided by the embodiment of the present invention;

[0044] Figure 2 It is a schematic diagram of the operation logic of the comprehensive evaluation system for power grid infrastructure projects provided by an embodiment of the present invention;

[0045] Figure 3 It is a flowchart of the implementation of the comprehensive evaluation method for power grid infrastructure projects provided by an embodiment of the present invention. Specific embodiments

[0046] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. However, those skilled in the art should clearly understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present invention.

[0047] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will be described through specific embodiments in conjunction with the accompanying drawings.

[0048] Figure 1 It is a schematic diagram of the structure of the comprehensive evaluation system 1 for power grid infrastructure projects provided by an embodiment of the present invention, and is described in detail as follows:

[0049] The comprehensive evaluation system 1 for power grid infrastructure projects includes:

[0050] A project information collection module 11, configured to extract the project initial parameters of the power grid infrastructure project from the preliminary planning data of the power grid infrastructure project;

[0051] A subsystem division evaluation module 12, configured to perform pre-construction evaluation on each subsystem in the power grid infrastructure project based on the project initial parameters of the power grid infrastructure project, and determine the planning design, equipment requirements, and resource allocation of each subsystem;

[0052] A cross-subsystem collaboration analysis module 13, configured to evaluate whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning design, equipment requirements, and resource allocation of each subsystem;

[0053] A construction risk prediction module 14, configured to analyze the construction delay risk and / or resource scheduling conflict risk based on the conflict evaluation result, and adjust the construction sequence and / or resource scheduling of the power grid infrastructure project.

[0054] In this embodiment, the operation logic of each module and the key data used during the operation process are as Figure 2As shown in the figure. The preliminary planning data of the power grid infrastructure project may include geographical location, electricity demand budget, project scale, construction period, budget estimate. The project information collection module 11 can directly obtain the preliminary planning data of the power grid infrastructure project through the data interface: directly obtain the determined geographical location of the project through the project planning document, including the longitude, latitude and boundary range of the project site; extract the determined electricity demand budget from the preliminary planning data of the project to reflect the electricity demand situation in the future project area; obtain the project scale information based on the project planning document, including the length of the transmission line, the number of substations, the type and quantity of equipment; extract the construction period through the planning document, including the planned start time of construction, the phased progress nodes and the expected completion time; obtain the project budget data from the project planning document, including the detailed estimates of equipment, materials and labor costs, as the initial financial parameters of the project.

[0055] The subsystem division and evaluation module 12 respectively conducts pre-construction evaluations on the independent subsystems in the power grid infrastructure project. The evaluation contents include planning and design, equipment requirements, and resource allocation; the subsystems include the transmission subsystem, the distribution subsystem, and the energy storage subsystem, and generate subsystem evaluation reports based on the specific requirements of each subsystem.

[0056] The cross-subsystem collaboration analysis module: Based on the subsystem evaluation reports, conduct cross-subsystem collaboration analysis, evaluate the mutual conflict impacts among the transmission subsystem, the distribution subsystem, and the energy storage subsystem during the construction process, especially the balance analysis of material supply, construction progress, resource sharing, and coordination requirements, to ensure the overall feasibility of the construction plan and the collaborative consistency among systems.

[0057] The construction risk prediction module: Based on the collaboration analysis results, simulate the construction process of the power grid infrastructure project and analyze the risks of construction delivery delay and resource scheduling conflict.

[0058] The embodiment of the present invention extracts the initial parameters of the project by using the preliminary planning data of the power grid infrastructure project, determines the planning and design, equipment requirements and resource allocation of each subsystem, then evaluates the spatial layout and resource allocation of each subsystem, and further specifically analyzes the construction delay risk and resource scheduling conflict risk of the overall power grid infrastructure project, and makes adjustments for various risks, making the construction process more flexible, optimizing the resource utilization rate, and improving the controllability and implementation success rate of the project.

[0059] In a possible implementation manner, the preliminary planning data includes the project planning document, the initial parameters of the project include the geographical location of the project, the electricity demand budget, the project scale, and the project budget data, and the subsystems of the power grid infrastructure project include the transmission subsystem, the distribution subsystem, and the energy storage subsystem;

[0060] The subsystem division and evaluation module includes:

[0061] The power transmission subsystem evaluation unit is used to determine the substation layout, transmission line path, line load capacity, and transmission equipment model of the power transmission subsystem based on the project geographical location, electricity demand budget, and project scale, and generate a list of transmission equipment requirements and a transmission resource allocation plan;

[0062] The power distribution subsystem evaluation unit is used to determine the power distribution network topology, power distribution equipment model, and power distribution equipment quantity of the power distribution subsystem based on the electricity demand budget and project scale, and generate a list of power distribution equipment requirements and a power distribution resource allocation plan;

[0063] The energy storage subsystem evaluation unit is used to determine the energy storage equipment type, energy storage equipment capacity, energy storage equipment installation location, and energy storage equipment operation strategy of the energy storage subsystem based on the project scale and project budget data, and generate a list of energy storage equipment requirements and an energy storage resource allocation plan.

[0064] In this embodiment, the power transmission subsystem evaluation unit: Based on the geographical location, electricity demand budget, and project scale in the project initial parameters, evaluate the planning and design of the power transmission subsystem, determine the path selection of the transmission line, substation layout, line load capacity, and equipment selection, and generate a list of equipment requirements and a resource allocation plan, specifically including:

[0065] Transmission line path selection: According to the project geographical location and environmental conditions, evaluate the best path of the transmission line, consider avoiding geographical obstacles, reducing the line length to reduce transmission losses, and determine the positions of key nodes according to the line path.

[0066] Substation layout: Combine the electricity demand budget and regional electricity load distribution to determine the best layout and quantity of substations, ensure stable power supply, and optimize the connection method of the transmission line according to the substation layout to ensure efficient power transmission.

[0067] Line load capacity evaluation: By analyzing the electricity demand and the expected load of the transmission line, evaluate the required load capacity of the line, determine the transmission power demand, and select appropriate wire specifications and equipment to ensure that the load requirements can be met.

[0068] Equipment selection and allocation plan: According to the planned line load capacity and substation layout, determine the selection of various transmission equipment, including transformers, circuit breakers, and transmission towers, and formulate a detailed list of equipment requirements. At the same time, generate an equipment allocation plan, plan the equipment arrival time, and ensure that the equipment arrives on schedule to support the smooth construction of the project.

[0069] Distribution Subsystem Evaluation Unit: Based on the power consumption demand budget and project scale in the initial project parameters, evaluate the planning and design of the distribution subsystem, determine the topology of the distribution network, the selection and quantity requirements of distribution equipment (such as distribution transformers and switchgear), and ensure that the construction requirements of each distribution node are met. Specifically, it includes:

[0070] Distribution Network Topology: According to the distribution of regional power consumption demand, evaluate the structure of the distribution network, determine a reasonable layout of distribution lines, including the locations of each distribution node, the connection methods, and the load distribution, to ensure that balanced power supply can be achieved in each distribution area.

[0071] Distribution Equipment Selection and Quantity Requirements: Based on the topology of the distribution network, evaluate the selection of various distribution equipment, including distribution transformers, switchgear, and cables, and determine the specific quantity requirements of the equipment according to the project scale and the number of distribution nodes, to ensure that the selected equipment can meet the load requirements of each distribution node.

[0072] Construction Resource Requirement Evaluation: Combining with the design of the distribution subsystem, evaluate the resource requirements of each distribution node during the construction process, including the materials, manpower, and construction period required for the transportation, installation, and commissioning of equipment, to ensure that resources can be reasonably allocated during the construction process, avoiding resource waste and construction delays.

[0073] Energy Storage Subsystem Evaluation Unit: Based on the project scale and budget estimate in the initial project parameters, evaluate the planning and design of the energy storage subsystem, including the type, capacity, installation location, and operation strategy of energy storage equipment, to ensure that the energy storage subsystem meets the requirements for power load regulation and power supply stability, and generate a list of energy storage equipment requirements and a resource allocation plan. Specifically, it includes:

[0074] Energy Storage Equipment Type and Capacity Evaluation: According to the grid load regulation requirements and the overall scale of the project, evaluate the type and energy storage capacity of energy storage equipment to ensure that the energy storage equipment can meet the power regulation requirements and provide sufficient support to ensure system stability during power supply fluctuations.

[0075] Energy Storage Equipment Installation Location Planning: Combining the project's geographical location and power demand distribution, determine the optimal installation location of energy storage equipment to ensure that the energy storage subsystem can effectively serve the transmission and distribution subsystems, and is not restricted by geographical conditions, facilitating subsequent operation and maintenance.

[0076] Energy Storage Subsystem Operation Strategy Analysis: According to the type and capacity of energy storage equipment, formulate the operation strategy of the energy storage subsystem to ensure that the energy storage equipment can be fully utilized for power supply during peak grid loads, and excess power can be stored through the energy storage equipment during low loads, improving the overall operation efficiency of the system.

[0077] Energy storage equipment requirement list and resource allocation plan: Based on the planning and design of energy storage equipment, generate a detailed equipment requirement list, and formulate the equipment allocation and installation plan to ensure that the energy storage subsystem equipment can be delivered to the construction site on time and be installed and debugged within a reasonable construction period.

[0078] The more specific evaluation methods for each subsystem are as follows.

[0079] 1. Specific evaluation method for the transmission subsystem evaluation unit:

[0080] Transmission line route selection: By analyzing the geographical location, terrain characteristics of the project area and the environmental conditions in the project area, select the optimal transmission line route. This evaluation includes identifying geographical obstacles (mountains, rivers), and considering how to minimize the line length to reduce transmission losses. In addition, it is necessary to analyze the facility layout (roads, buildings) in the area to ensure that the transmission line does not interfere with the normal operation of existing facilities. Based on this information, comprehensively evaluate the advantages and disadvantages of each route, and finally determine the most suitable line direction.

[0081] Substation layout: By analyzing the distribution of power demand in the project area, determine the location and quantity of substations. The evaluation needs to consider whether the selected location of the substation can effectively cover the electricity load in the area and deliver electricity to the end users within a reasonable range. The substation layout needs to be optimized according to the local distribution of power load centers to ensure the efficient operation of the substation, reduce power transmission losses and overload risks.

[0082] Line load capacity evaluation: Combine the power demand forecast in the project area to evaluate the power load that the transmission line needs to carry. By analyzing the electricity demand, determine whether the load capacity of the transmission line can meet the power transmission requirements of the project plan, and ensure that the line can operate stably under various power loads. The evaluation also considers the redundant design of the transmission line to cope with possible future load growth or sudden load fluctuations.

[0083] Equipment selection and allocation plan: Based on the comprehensive analysis of the transmission line route, load capacity and substation layout, select appropriate transmission equipment. The equipment selection process needs to consider whether the technical parameters of the equipment meet the design requirements of the transmission subsystem, and ensure that the selected equipment has sufficient reliability and durability. The evaluation also considers the market supply situation, delivery cycle and cost of the equipment to generate a reasonable equipment allocation plan to ensure that the equipment arrives on time and meets the construction progress requirements.

[0084] 2. Specific evaluation method for the distribution subsystem evaluation unit:

[0085] Evaluation of the distribution network topology: Based on the electricity demand forecast and load distribution in the project area, evaluate and design a reasonable distribution network topology. The key point of the evaluation is to ensure that each node in the distribution network can balance the load and reduce losses during power transmission. It is necessary to consider the connection methods between distribution nodes (such as ring networks and star networks) to ensure that the distribution network has sufficient flexibility and scalability to adapt to future changes in electricity demand.

[0086] Evaluation of the selection and quantity requirements of distribution equipment: According to the topology of the distribution network, analyze the requirements for various types of distribution equipment. This process includes evaluating the technical specifications and quantity requirements of distribution transformers, switchgear, cables, etc., to ensure that the performance of the equipment meets the design requirements of the distribution subsystem. The evaluation also combines the installation conditions of the equipment and considers the operability and safety of the equipment to ensure that the equipment can be installed and debugged smoothly during actual construction.

[0087] Evaluation of construction resource requirements: Combining the design of the distribution subsystem and the selection of equipment, evaluate the resource requirements during the construction process. This evaluation includes analyzing the materials and human resources required for equipment transportation, installation, and commissioning, and formulating a detailed construction plan based on the construction period and project scale. The evaluation process also needs to consider construction bottlenecks (such as delayed equipment supply and difficult installation) and formulate corresponding countermeasures to ensure that the construction progress is not affected.

[0088] 3. Specific evaluation methods for the energy storage subsystem evaluation unit:

[0089] Evaluation of energy storage device types and capacities: According to the characteristics of power load fluctuations in the project area, evaluate the types and capacities of required energy storage devices. In the evaluation, it is necessary to analyze the peak-valley differences in electricity demand in the area, determine whether the energy storage subsystem can provide sufficient support during peak power loads, and whether it can store excess power during low load periods. The selection of energy storage devices needs to combine the actual needs of the project, such as the advantages and disadvantages of energy storage technologies such as batteries and flywheels, to ensure that the design of the energy storage subsystem has sufficient flexibility and scalability.

[0090] Planning of the installation location of energy storage devices: By analyzing the geographical conditions and power load distribution in the project area, determine the optimal installation location of energy storage devices. In the evaluation, it is necessary to consider the installation space of the equipment, the convenience of accessing the power grid, and future maintenance requirements. The location of energy storage devices should be as close as possible to the load center to reduce losses during power transmission and ensure the safety and stability of equipment operation.

[0091] Analysis of the operation strategy of the energy storage subsystem: According to the type and capacity of the energy storage device, formulate the operation strategy of the energy storage subsystem. During the evaluation, focus on analyzing how the energy storage subsystem releases electricity during peak power periods and charges during low - valley periods to balance the fluctuations in power supply and demand. The operation strategy also needs to consider the real - time load changes of the power grid and the discharge efficiency of the energy storage subsystem to ensure the economy and stability of the system operation.

[0092] Energy storage device requirement list and resource allocation plan: According to the planning and design of the energy storage subsystem, generate a detailed device requirement list and formulate a device allocation plan. The evaluation needs to consider the market supply situation and installation conditions of the devices to ensure that the devices can be delivered and installed on time. In addition, the device allocation plan also needs to match the overall construction plan of the project to ensure that there will be no construction delays caused by device shortages or improper scheduling during the construction period.

[0093] In a possible implementation manner, the cross - subsystem collaborative analysis module is specifically used for:

[0094] Based on the substation layout, transmission line path, distribution network topology, and energy storage device installation location, determine whether there are overlapping areas in the construction sites of each subsystem.

[0095] In this embodiment, the cross - subsystem collaborative analysis module comprehensively analyzes the planning and design information of the transmission subsystem, distribution subsystem, and energy storage subsystem, evaluates whether there are conflicts in the spatial layout and construction sequence of each subsystem during the construction process, identifies the overlapping areas of the transmission lines, distribution network, and energy storage devices in the construction site, ensures the coordination in spatial layout, and avoids affecting the construction progress due to layout conflicts.

[0096] In a possible implementation manner, the initial project parameters also include the construction period, which includes the planned start time, multiple phased progress nodes, and the expected completion time; the cross - subsystem collaborative analysis module is also used for:

[0097] Conduct a correlation analysis on the transmission resource allocation plan, distribution resource allocation plan, and energy storage resource allocation plan, simulate the construction progress of each subsystem, determine whether there are conflicts in the equipment resource requirements of the transmission subsystem, distribution subsystem, and energy storage subsystem at the same time period, and identify the key nodes that may cause construction delays in each phased progress node.

[0098] In this embodiment, the cross - subsystem collaborative analysis module synthesizes the equipment requirements of the transmission subsystem, distribution subsystem, and energy storage subsystem, evaluates the specifications, models, delivery cycles of the equipment, and the specific resources required for construction, analyzes the shared requirements of the transmission subsystem, distribution subsystem, and energy storage subsystem for key equipment (such as substation equipment, energy storage devices, power control systems), identifies equipment supply conflicts, ensures the coordination of equipment requirements, and avoids construction delays caused by equipment supply chain problems;

[0099] Conduct a unified analysis of the construction progress plans of the power transmission subsystem, power distribution subsystem, and energy storage subsystem, identify the key nodes in the construction process, evaluate the demand conflicts of the power transmission subsystem, power distribution subsystem, and energy storage subsystem for construction resources (including labor, materials, and equipment) during the same time period, and ensure that the power transmission subsystem, power distribution subsystem, and energy storage subsystem will not cause construction period delays or resource scheduling bottlenecks due to resource competition during the construction process;

[0100] Based on the results of collaborative analysis, identify the conflict points in the construction process, such as time differences in material supply, cross-interference in construction areas, and conflicts in the use of key equipment, etc., and propose solutions by adjusting the construction plan, resource allocation, and equipment supply chain to ensure smooth collaborative construction among subsystems and improve the overall construction efficiency.

[0101] In a possible implementation manner, the cross-subsystem collaborative analysis module is specifically used for:

[0102] Regard the planning and design, equipment requirements, and resource allocation of each subsystem in different time periods as different transaction items;

[0103] Calculate the support degree and confidence degree between each transaction item to measure the frequency of each transaction item occurring simultaneously in each subsystem;

[0104] Based on the rules with high support degree and confidence degree, identify the key nodes where there are conflicts among the planning and design, equipment requirements, and resource allocation of each subsystem in the construction process.

[0105] In this embodiment, the cross-subsystem collaborative analysis module, based on the association rule algorithm, sets the planning and design, equipment requirements, and resource allocation of each subsystem as different "transaction items", and through the analysis of the association rule algorithm, discovers the dependency relationships and potential conflicts between transaction items. In the association rule algorithm, there are support degree and confidence degree, which are used to measure the frequency of transaction items occurring simultaneously in each subsystem.

[0106] Analyze the dependency relationships in terms of planning and design and equipment requirements of each subsystem. For example, the shared requirements of the power transmission subsystem and the power distribution subsystem for substation equipment. This algorithm can identify the equipment or resources with high-frequency associations between subsystems and discover the potential conflict points therein. Regard the planning and design, equipment requirements, etc. of each subsystem as input transaction items (such as substation equipment, cables, etc.), and through the algorithm, find out which subsystems' requirements for the same equipment frequently appear in the same construction period, so as to identify the conflict points.

[0107] The conflict identification by the association rule algorithm specifically includes:

[0108] Input the equipment requirements, planning designs, and resource allocations of each subsystem during different time periods in the construction process as transaction items into the association rule algorithm. Each transaction represents a specific time period, and its content includes the construction plan of each subsystem during that time period.

[0109] Support calculation: Through support calculation, identify the situations where equipment requirements overlap between different subsystems during the construction process. For example, if the support for the demand of substation equipment is relatively high in both the power transmission subsystem and the power distribution subsystem during a certain time period, it indicates the risk of equipment conflicts.

[0110] Confidence calculation: Through confidence calculation, predict whether there is a high probability that the power distribution subsystem also has the demand for the same equipment when a certain equipment demand in the power transmission subsystem occurs, so as to identify conflicts.

[0111] Conflict analysis: Based on the rules with high support and confidence, identify the conflict points in the planning design, equipment requirements, and resource allocation of each subsystem during the construction process.

[0112] In a possible implementation, the formula for support is:

[0113]

[0114] where X is a transaction item, Support(X) is the support of transaction item X, T is the set of transaction items, is the number of times X occurs within a certain time period, and |T| is the total number of transaction items;

[0115] The formula for confidence is:

[0116]

[0117] where X is the antecedent transaction item, Y is the consequent transaction item associated with X, is the probability that if transaction item X occurs, transaction item Y will also occur, Support(X∪Y) represents the support for the simultaneous occurrence of X and Y, and Support(X) represents the support for the occurrence of X.

[0118] In this embodiment, in the formula for support, X represents a combined item of a certain equipment requirement, planning design, or resource allocation conflict (such as the overlap of the demand for the same equipment in the power transmission subsystem and the power distribution subsystem);

[0119] T represents the set of all transactions, and each transaction T represents the equipment requirements, planning designs, or resource allocations of a subsystem within a certain time period;

[0120] Represents the number of transactions containing X, indicating the number of times X occurs within a certain time period (e.g., the number of times the demand for substation equipment from the power transmission subsystem and the power distribution subsystem appears simultaneously);

[0121] |T| represents the total number of transactions, indicating the quantity of the subsystem planning and design, equipment requirements, and resource allocation involved in the entire construction process.

[0122] In the confidence formula, Represents the probability that if X occurs (such as a certain equipment requirement of the power transmission subsystem), then Y (such as the related equipment requirement of the power distribution subsystem) will also occur;

[0123] X is the antecedent, representing a specific equipment requirement, resource allocation, or construction plan, such as the equipment requirement of the power transmission subsystem at a certain stage;

[0124] Y is the consequent, representing another equipment requirement or construction situation associated with X, such as the requirement for the same equipment by the power distribution subsystem during the same time period;

[0125] Support(X∪Y) represents the support degree of the simultaneous occurrence of X and Y, reflecting the conflict frequency of the same equipment requirements or resources between the two subsystems;

[0126] Support(X) represents the support degree of the occurrence of X.

[0127] In this embodiment, if the evaluation is carried out before the start of the grid infrastructure project, at this time, the subsystems in this project have not started construction, and the event data of this project cannot be used to calculate the support degree and confidence. At this time, the support degree of the event data of similar projects can be used to predict the confidence of this project. If the evaluation is carried out after the start of the grid infrastructure project, the event data of this project can be used to adjust the support degree of the event data of similar projects, improve the accuracy of the support degree, and retain the advantage of a wide sample of the existing support degree.

[0128] In a possible implementation manner, the construction risk prediction module is specifically used for:

[0129] If the key node of a certain subsystem is affected by the delay of another subsystem, resulting in a lag in the overall construction progress, it is determined that there is a risk of delivery delay in the grid infrastructure project;

[0130] If multiple subsystems demand the same resource in the same time period and the resource is insufficient, it is determined that there is a risk of resource scheduling conflict during this time period.

[0131] In this embodiment, the construction risk prediction module simulates the progress of a power grid infrastructure project during actual construction based on the equipment requirements, planning and design, and resource allocation conflicts identified between subsystems by the association rule algorithm, and evaluates the risk of construction delays or insufficient resource supply caused by these conflicts during the construction process.

[0132] Simulate the construction progress plans of each subsystem, identify whether the key nodes of each system are affected by the progress of other subsystems, determine the key construction nodes of each subsystem (such as substation installation, transmission line erection, energy storage equipment commissioning, etc.), analyze the dependencies between key construction nodes. For example, the distribution subsystem may need to wait for the completion of substation installation in the transmission subsystem before starting wiring, and the energy storage subsystem may need the distribution subsystem to complete relevant circuit connections before installing energy storage equipment. By simulating the schedules of each subsystem, identify which delays in the key construction nodes of a subsystem will affect the normal progress of other subsystems. The judgment criterion is: if the key node of a subsystem is affected by the delay of another subsystem, resulting in a lag in the overall construction progress, there is a risk of overall construction delivery delay.

[0133] Identify the resource requirements of each subsystem during the same time period. By analyzing the construction plan, check whether multiple subsystems are competing for limited resources at the same time. If multiple subsystems demand key resources during the same time period and the available resources are insufficient, it indicates a risk of resource scheduling conflict.

[0134] In a possible implementation, the construction risk prediction module is also used to:

[0135] If there is a risk of delivery delay in the power grid infrastructure project, adjust the construction sequence of each subsystem;

[0136] If there is a risk of resource scheduling conflict in the power grid infrastructure project, adjust the time period when each subsystem demands the resource, or increase the supply of the resource.

[0137] In this embodiment, it also includes implementing risk control measures. The risk control measures include:

[0138] Construction sequence adjustment: For the risk of construction lag caused by key node dependencies, ensure that the progress of other subsystems is not affected by the delay of a certain subsystem by adjusting the construction sequence;

[0139] Resource optimized scheduling: After identifying a resource scheduling conflict, stagger the resource demand times of different subsystems through optimized scheduling, or increase the resource supply to ensure that the construction of all subsystems can proceed as planned.

[0140] Risk control measures based on the foregoing (construction sequence adjustment, resource optimization scheduling), the following are the specific implementation plans, aiming to ensure the smooth coordinated construction of the transmission subsystem, distribution subsystem, and energy storage subsystem in the grid infrastructure project, and reduce the risks of construction delivery delays and resource scheduling conflicts.

[0141] 1. Construction sequence adjustment plan: The adjustment of the construction sequence is to address the risk of construction lag caused by critical node dependencies, ensuring that the delay of one subsystem does not affect the progress of other subsystems.

[0142] Implementation steps:

[0143] Determine critical node dependencies: Through time-dependency analysis of the construction critical nodes among the transmission, distribution, and energy storage subsystems, determine which subsystems' construction progress depends on the completion of other subsystems. For example, the distribution subsystem may depend on the construction of the substation in the transmission subsystem, and the energy storage subsystem may depend on the completion of the circuit connection in the distribution subsystem.

[0144] Adjust the construction sequence: If it is found that the construction progress of a certain subsystem lags behind and will affect the progress of other subsystems, the construction sequence should be adjusted immediately. Other work that does not depend on the delayed node can be started in advance, or by adjusting resources and personnel, the lagging part can be given priority to ensure that other systems are not affected.

[0145] Scheme example: Carry out independent work in advance: If the construction of the distribution subsystem lags behind and affects the energy storage subsystem, the construction sequence of the energy storage subsystem can be adjusted to give priority to the construction of the energy storage equipment infrastructure, rather than waiting for the completion of the distribution work before starting all construction.

[0146] Adjust construction in stages: Decompose the construction into multiple stages and arrange the sequence according to the dependencies of each subsystem to ensure that the work in each stage is not affected by the delay of the previous subsystem.

[0147] 2. Resource optimization scheduling plan: Resource optimization scheduling is to solve the resource conflict problem caused by multiple subsystems simultaneously requiring the same resources (such as construction equipment, personnel, etc.). By optimizing resource allocation, construction stagnation caused by insufficient resources can be avoided.

[0148] Implementation steps:

[0149] Analyze the resource requirements of each subsystem: Compare the resource requirements of the transmission, distribution, and energy storage subsystems during the construction process to identify which time periods different subsystems have overlapping requirements for the same resource. For example, multiple subsystems may require the same lifting equipment or specialized electrical engineering technicians.

[0150] Adjust the resource scheduling plan: By staggering time periods or increasing resource supply, resolve resource conflict issues. Certain work with high resource requirements can be scheduled during off-peak hours, or resource supply can be increased to ensure the work progress of all systems.

[0151] Example of the solution:

[0152] Off-peak scheduling: If both the power transmission subsystem and the energy storage subsystem need to use a large crane during the same time period, their construction times can be staggered. The work of the power transmission subsystem can be arranged during the day, while the construction of the energy storage subsystem can be adjusted to night or another time period to avoid resource conflicts.

[0153] Increase resource supply: If a large number of construction workers and equipment are required during the critical construction stage, personnel or equipment supply can be temporarily increased to ensure that each subsystem has sufficient resources to support construction.

[0154] As can be seen from the above, the beneficial effects of the present invention include:

[0155] In the present invention, the power grid infrastructure project is divided into three independent subsystems: the power transmission subsystem, the power distribution subsystem, and the energy storage subsystem. Fine-grained evaluation and management are carried out according to the characteristics of each system, significantly improving the overall construction efficiency and risk control ability of the project. Such a division method enables the planning and design, equipment requirements, and resource allocation of each subsystem to be independently evaluated, and through collaborative analysis, the interdependencies and potential conflicts between systems are identified, ensuring that each subsystem can cooperate efficiently during the construction process, reducing the risk of construction delays and resource scheduling conflicts. Compared with the traditional holistic evaluation method, this subsystem management method makes the construction process more flexible, optimizes resource utilization, and improves the controllability and implementation success rate of the project.

[0156] In the present invention, by applying the association rule algorithm, comprehensive analysis can be carried out on the key nodes that are interdependent among the power transmission subsystem, the power distribution subsystem, and the energy storage subsystem during the construction process. By taking the planning and design, equipment requirements, and resource allocation of each subsystem as "transaction items" and using support and confidence indicators, the system can identify potential conflict points among each subsystem during the construction process, such as equipment supply chain problems or resource sharing conflicts. This collaborative analysis method can accurately detect possible conflicts in the early stage of construction, especially in terms of overlapping equipment requirements and resource competition, and adjust the construction plan in advance to ensure the coordination among each subsystem, reducing construction delays caused by dependencies. Compared with the existing holistic analysis method, the present invention is innovative in cross-system collaborative processing and can significantly improve the overall feasibility of the construction plan.

[0157] In the present invention, through the construction risk prediction module, based on the results of association rule analysis, the construction progress plans of each subsystem are simulated, and the key nodes that may cause construction delays are accurately identified. By analyzing the construction progress dependency relationships among the power transmission subsystem, the power distribution subsystem, and the energy storage subsystem during the construction process, the risks of construction progress lags caused by equipment delivery delays or insufficient resource scheduling can be judged in advance, the resource competition points during the construction process can be effectively identified, and the competition for the same resource by multiple subsystems within the same time period can be avoided. Furthermore, through resource scheduling optimization, the smooth progress of the construction can be ensured.

[0158] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0159] The following is the device embodiment of the present invention. For the details not described in detail therein, reference can be made to the corresponding method embodiments above.

[0160] Figure 3 The structural schematic diagram of the comprehensive evaluation method for power grid infrastructure projects provided by the embodiments of the present invention is shown. For the sake of convenience of description, only the parts related to the embodiments of the present invention are shown and are described in detail as follows:

[0161] Step 301, the project information collection module extracts the project initial parameters of the power grid infrastructure project from the preliminary planning data of the power grid infrastructure project.

[0162] Step 302, the subsystem division and evaluation module conducts pre-construction evaluations on each subsystem in the power grid infrastructure project based on the project initial parameters of the power grid infrastructure project, and determines the planning and design, equipment requirements, and resource allocation of each subsystem.

[0163] Step 303, the cross-subsystem coordination analysis module evaluates whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements, and resource allocation of each subsystem.

[0164] Step 304, the construction risk prediction module analyzes the construction delay risk and / or resource scheduling conflict risk based on the conflict evaluation results, and adjusts the construction sequence and / or resource scheduling of the power grid infrastructure project.

[0165] In a possible implementation manner, the preliminary planning data includes project planning documents, the project initial parameters include the project geographical location, electricity demand budget, project scale, and project budget data, the subsystems of the power grid infrastructure project include a power transmission subsystem, a power distribution subsystem, and an energy storage subsystem; the subsystem division and evaluation module includes a power transmission subsystem evaluation unit, a power distribution subsystem evaluation unit, and an energy storage subsystem evaluation unit;

[0166] The subsystem division evaluation module conducts pre-construction evaluations on each subsystem in the power grid infrastructure project based on the initial project parameters of the power grid infrastructure project, and determines the planning and design, equipment requirements, and resource allocation of each subsystem, including:

[0167] The transmission subsystem evaluation unit determines the substation layout, transmission line path, line load capacity, and transmission equipment model of the transmission subsystem based on the project geographical location, electricity demand budget, and project scale, and generates a list of transmission equipment requirements and a transmission resource allocation plan;

[0168] The distribution subsystem evaluation unit determines the distribution network topology structure, distribution equipment model, and distribution equipment quantity of the distribution subsystem based on the electricity demand budget and project scale, and generates a list of distribution equipment requirements and a distribution resource allocation plan;

[0169] The energy storage subsystem evaluation unit determines the energy storage equipment type, energy storage equipment capacity, energy storage equipment installation location, and energy storage equipment operation strategy of the energy storage subsystem based on the project scale and project budget data, and generates a list of energy storage equipment requirements and an energy storage resource allocation plan.

[0170] In a possible implementation manner, the cross-subsystem collaborative analysis module evaluates whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements, and resource allocation of each subsystem, including:

[0171] Based on the substation layout, transmission line path, distribution network topology structure, and energy storage equipment installation location, determine whether there are overlapping areas in the construction sites of each subsystem.

[0172] In a possible implementation manner, the project initial parameters further include the construction period, which includes the planned start time, multiple phased progress nodes, and the expected completion time; the cross-subsystem collaborative analysis module evaluates whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements, and resource allocation of each subsystem, and further includes:

[0173] Conduct a correlation analysis on the transmission resource allocation plan, distribution resource allocation plan, and energy storage resource allocation plan, simulate the construction progress of each subsystem, determine whether there are conflicts in the equipment resource requirements of the transmission subsystem, distribution subsystem, and energy storage subsystem at the same time period, and identify the key nodes that may cause construction delays in each phased progress node.

[0174] In a possible implementation manner, the cross-subsystem collaborative analysis module evaluates whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements, and resource allocation of each subsystem, including:

[0175] Take the planning and design, equipment requirements, and resource allocation of each subsystem in different time periods as different transaction items;

[0176] Calculate the support and confidence between each transaction item, and measure the frequency of simultaneous occurrence of each transaction item in each subsystem;

[0177] Based on the rules with high support and confidence, identify the key nodes where there are conflicts among the planning and design, equipment requirements, and resource allocation of each subsystem during the construction process.

[0178] In a possible implementation, the formula for support is:

[0179]

[0180] where X is the transaction item, Support(X) is the support of the transaction item X, T is the set of transaction items, is the number of times X occurs within a certain time period, and |T| is the total number of transaction items;

[0181] The formula for confidence is:

[0182]

[0183] where X is the antecedent transaction item, Y is the consequent transaction item associated with X, is the probability that if transaction item X occurs, then transaction item Y will also occur, Support(X∪Y) represents the support of the simultaneous occurrence of X and Y, and Support(X) represents the support of the occurrence of X.

[0184] In a possible implementation, based on the conflict assessment results, the construction risk prediction module analyzes the construction delay risk and / or resource scheduling conflict risk, and adjusts the construction sequence and / or resource scheduling of the power grid infrastructure project, including:

[0185] If the key node of a certain subsystem is affected by the delay of another subsystem, resulting in the lag of the overall construction progress, it is determined that there is a risk of delivery delay for the power grid infrastructure project;

[0186] If multiple subsystems demand the same resource in the same time period and the resource is insufficient, it is determined that there is a risk of resource scheduling conflict in that time period.

[0187] In a possible implementation, based on the conflict assessment results, the construction risk prediction module analyzes the construction delay risk and / or resource scheduling conflict risk, and adjusts the construction sequence and / or resource scheduling of the power grid infrastructure project, and also includes:

[0188] If there is a risk of delivery delay for the power grid infrastructure project, then adjust the construction sequence of each subsystem;

[0189] If there is a risk of resource scheduling conflict in the power grid infrastructure project, adjust the time period when each subsystem requests the resource, or increase the supply of the resource.

[0190] The embodiments of the present invention extract the initial parameters of the project by using the preliminary planning data of the power grid infrastructure project, determine the planning and design, equipment requirements, and resource allocation of each subsystem, then evaluate the spatial layout and resource allocation of each subsystem, and further conduct a specific analysis of the construction delay risk and resource scheduling conflict risk of the overall power grid infrastructure project, and make adjustments for various risks, making the construction process more flexible, optimizing the resource utilization rate, and improving the controllability and implementation success rate of the project.

[0191] In the above embodiments, the descriptions of the various embodiments have their own focuses. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0192] Those of ordinary skill in the art can realize that the templates, units, and algorithm steps of the various examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0193] If the module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the above method embodiments of the present invention, it can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above embodiments of the comprehensive evaluation method for power grid infrastructure projects can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory, random access memory, electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0194] The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A comprehensive evaluation system for power grid infrastructure projects, characterized in that: include: A project information collection module, used to extract the initial project parameters of the power grid infrastructure project from the preliminary planning data of the power grid infrastructure project; A subsystem division evaluation module is used to perform a pre-construction evaluation on each subsystem in the power grid infrastructure project based on the initial project parameters of the power grid infrastructure project, and determine the planning and design, equipment requirements and resource allocation of each subsystem; The cross-subsystem collaborative analysis module is used to evaluate whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements and resource allocation of each subsystem; The construction risk prediction module is used to analyze the construction delay risk and / or resource scheduling conflict risk based on the conflict assessment results, and adjust the construction sequence and / or resource scheduling of the power grid infrastructure project.

2. The comprehensive evaluation system for power grid infrastructure projects according to claim 1, characterized in that: The preliminary planning data includes project planning documents, the initial project parameters include the project geographical location, electricity demand budget, project scale and project budget data, and the subsystems of the power grid infrastructure project include the transmission subsystem, the distribution subsystem and the energy storage subsystem; The subsystem partitioning assessment module comprises: A transmission subsystem evaluation unit, configured to determine the substation layout, transmission line path, line load capacity and transmission equipment model of the transmission subsystem based on the project's geographical location, the electricity demand budget and the project scale, and generate a transmission equipment demand list and a transmission resource allocation plan; A distribution subsystem evaluation unit, configured to determine the distribution network topology, distribution equipment model and number of distribution equipment of the distribution subsystem based on the power demand budget and the project scale, and generate a distribution equipment demand list and a distribution resource allocation plan; The energy storage subsystem evaluation unit is used to determine the energy storage device type, energy storage device capacity, energy storage device installation location and energy storage device operation strategy of the energy storage subsystem based on the project scale and the project budget data, and generate an energy storage device requirement list and an energy storage resource allocation plan.

3. The comprehensive evaluation system for power grid infrastructure projects according to claim 2 is characterized in that: The cross-subsystem collaborative analysis module is specifically used for: Based on the substation layout, the transmission line path, the distribution network topology and the energy storage device installation location, it is determined whether there are overlapping areas in the construction sites of the subsystems.

4. The comprehensive evaluation system for power grid infrastructure projects according to claim 2, characterized in that: The initial project parameters also include a construction period, which includes a planned start time, multiple phased progress nodes, and an expected completion time; the cross-subsystem collaborative analysis module is also used to: Conduct correlation analysis on the transmission resource allocation plan, distribution resource allocation plan and energy storage resource allocation plan, simulate the construction progress of each subsystem, determine whether there is a conflict in the equipment resource demand of the transmission subsystem, distribution subsystem and energy storage subsystem in the same period, and identify the key nodes in each stage progress node that may cause construction delays.

5. The comprehensive evaluation system for power grid infrastructure projects according to claim 4 is characterized in that: The cross-subsystem collaborative analysis module is specifically used for: Treat the planning, design, equipment requirements and resource allocation of each subsystem in different time periods as different transaction items; Calculate the support and confidence between each transaction item, and measure the frequency of each transaction item occurring simultaneously in each subsystem; Based on the rules with high support and confidence, the key nodes where conflicts exist among the planning and design, equipment requirements and resource allocation of each subsystem during the construction process are identified.

6. The comprehensive evaluation system for power grid infrastructure projects according to claim 5, characterized in that: The calculation formula for support is: Among them, X is a transaction item, Support(X) is the support of transaction item X, T is the transaction item set, is the number of times X occurs in a certain period of time, and |T| is the total number of transaction items; The confidence calculation formula is: Among them, X is the antecedent transaction item, and Y is the consequent transaction item associated with X. is the probability that if transaction item X occurs, transaction item Y will also occur, Support(X∪Y) represents the support for X and Y occurring at the same time, and Support(X) represents the support for X occurring.

7. The comprehensive evaluation system for power grid infrastructure projects according to claim 1, characterized in that: The construction risk prediction module is specifically used for: If a key node of a subsystem is affected by the delay of another subsystem, resulting in a delay in the overall construction progress, it is determined that the power grid infrastructure project has a risk of delayed delivery; If multiple subsystems make demands for the same resource in the same period, and the resource is insufficient, it is determined that there is a risk of resource scheduling conflict in the period.

8. The comprehensive evaluation system for power grid infrastructure projects according to claim 7, characterized in that: The construction risk prediction module is also used for: If there is a risk of delayed delivery of the power grid infrastructure project, adjust the construction sequence of each subsystem; If there is a risk of resource scheduling conflict in the power grid infrastructure project, the time period during which each subsystem makes a demand for the resource is adjusted, or the supply of the resource is increased.

9. A comprehensive evaluation method for power grid infrastructure projects, characterized in that: include: The project information collection module extracts the initial project parameters of the power grid infrastructure project from the preliminary planning data of the power grid infrastructure project; The subsystem division evaluation module performs a pre-construction evaluation on each subsystem in the power grid infrastructure project based on the initial project parameters of the power grid infrastructure project, and determines the planning and design, equipment requirements and resource allocation of each subsystem; The cross-subsystem collaborative analysis module evaluates whether there are conflicts in the spatial layout and resource allocation of each subsystem during the construction process based on the planning and design, equipment requirements and resource allocation of each subsystem; The construction risk prediction module analyzes the construction delay risk and / or resource scheduling conflict risk based on the conflict assessment result, and adjusts the construction sequence and / or resource scheduling of the power grid infrastructure project.

10. The comprehensive evaluation method for power grid infrastructure projects according to claim 9, characterized in that: The preliminary planning data includes project planning documents, the initial project parameters include the project geographical location, electricity demand budget, project scale and project budget data, the subsystems of the power grid infrastructure project include a transmission subsystem, a distribution subsystem and an energy storage subsystem; the subsystem division evaluation module includes a transmission subsystem evaluation unit, a distribution subsystem evaluation unit and an energy storage subsystem evaluation unit; The subsystem division evaluation module performs a pre-construction evaluation on each subsystem in the power grid infrastructure project based on the initial project parameters of the power grid infrastructure project, and determines the planning and design, equipment requirements and resource allocation of each subsystem, including: The transmission subsystem assessment unit determines the substation layout, transmission line path, line load capacity and transmission equipment model of the transmission subsystem based on the project geographical location, the power demand budget and the project scale, and generates a transmission equipment demand list and a transmission resource allocation plan; The distribution subsystem evaluation unit determines the distribution network topology, distribution equipment model and number of distribution equipment of the distribution subsystem based on the power demand budget and the project scale, and generates a distribution equipment demand list and a distribution resource allocation plan; The energy storage subsystem evaluation unit determines the energy storage device type, energy storage device capacity, energy storage device installation location and energy storage device operation strategy of the energy storage subsystem based on the project scale and the project budget data, and generates an energy storage device requirement list and an energy storage resource allocation plan.

Images