Power grid construction reserve project evaluation method

Abstract

The invention discloses a power grid construction reserve project evaluation method. The method comprises the steps of S1, compliance review, S2, project type division, S3, evaluation index system construction, S4, data standardization processing, S5, index weight determination, S6, comprehensive quantitative score calculation, S7, field review and scheme demonstration, S8, qualitative factor adjustment, S9, final priority score calculation, S10, project priority sequence formation and S11, investment budget fitting. S12, dynamic warehousing management and the like are carried out to form a systematic solution, and the systematic solution is used for standardized management and refined evaluation of power grid construction reserve projects. Starting from the contradiction between the current situation and the requirement of project reserve management, reserve project management is further enhanced and optimized, and a new idea and a new method of project reserve management are constructed, so that the quality and the efficiency of project establishment management are improved, the standardized management of a project reserve library is practically promoted, and the investment benefit of an enterprise is fundamentally improved.

Description

Technical Field

[0001] This invention belongs to the technical field of power grid construction reserve project evaluation, and specifically relates to an evaluation method for power grid construction reserve projects. Background Technology

[0002] Power grid construction projects, as fundamental infrastructure, are vital to the national economy and play a crucial role in promoting socio-economic development. Project reserves are an important basis for power grid companies to scientifically formulate project plans and rationally allocate investment budgets. Strengthening project reserve management, optimizing project reserve management processes, and achieving standardization and lean management of project reserves are fundamental to ensuring the organic integration of the company's development plans, project plans, and project construction implementation.

[0003] However, the current state and requirements of project reserve management present several contradictions and problems:

[0004] 1. Traditional project approval may rely too much on the application efforts of grassroots units, expert experience, or personal judgment, lacking unified and quantifiable measurement standards, resulting in an opaque decision-making process;

[0005] 2. There are always many projects to be built, but the company's investment budget is always limited. How to invest limited funds in the most urgent and highest-return projects is the core challenge of management.

[0006] 3. Enterprises often face a dilemma: whether to solve the immediate equipment failure (short-term emergency response) or to invest in projects that align with future power grid development trends (long-term strategy). The two often compete for the same amount of funds.

[0007] 4. The quality of the submitted project proposals varies. Some are well-reasoned, while others are rough and lack comparison and selection. This has resulted in a low overall level of reserve projects and chaotic management.

[0008] To address the aforementioned issues, it is essential to develop an evaluation method for power grid construction reserve projects. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an evaluation method for power grid construction reserve projects. Starting from the contradiction between the current status and requirements of project reserve management, this invention further strengthens and optimizes reserve project management, constructs new ideas and methods for project reserve management, and thereby improves the quality and efficiency of project initiation management, effectively promotes the standardized management of the project reserve, and fundamentally improves the investment benefits of enterprises.

[0010] The objective of this invention is achieved as follows: a method for evaluating power grid construction reserve projects, comprising the following steps:

[0011] S1, Compliance Review: Eliminate projects that do not meet the basic requirements to ensure the standardization of the reserve pool;

[0012] S2, Project Type Classification: Based on the project construction purpose and technical characteristics, it is divided into Category A - Network Reinforcement Type, Category B - Equipment Upgrade Type, Category C - Load Satisfaction Type, Category D - New Energy Access Type, and Category E - Emergency Defect Elimination Type;

[0013] S3, Construction of Evaluation Index System: Establish a comprehensive evaluation index system covering three dimensions: technological necessity (T), economic benefits (E), and social and strategic aspects (S).

[0014] S4, Data Standardization: Eliminate dimensional differences among indicators by standardizing the original data using the extreme value method, transforming it into dimensionless data. Interval values;

[0015] S5, Determining Indicator Weights: The Analytic Hierarchy Process (AHP) is used to determine the relative weights of each dimension and indicator.

[0016] S6, Overall Quantitative Score Calculation: The overall quantitative score for each item is calculated using a weighted summation model. ;

[0017] S7, On-site verification and scheme demonstration: Organize experts to conduct on-site surveys, verify the accuracy of basic data, and compare multiple technical solutions to ensure that the solution is optimal;

[0018] S8, Qualitative Factor Adjustment: The project decision-making committee reviews qualitative factors not covered by the quantitative evaluation and assigns qualitative adjustment points. Qualitative factors include technological foresight, social sensitivity, and significant external risks;

[0019] S9, Final Priority Score Calculation: Final Score for the Project It is the sum of the quantitative score and the qualitative adjustment score;

[0020] S10, Project Priority Sequence Formation: Based on Final Score Sort all items in descending order to form a project priority sequence;

[0021] S11, Investment Budget Fitting: Based on the total annual investment budget, projects are included in the annual investment plan in order of priority;

[0022] S12, Dynamic Inbound Management: Selected projects are formally included in the reserve pool, and a quarterly or semi-annual dynamic review mechanism is established to adjust project priorities and pool structure according to changes in the internal and external environment.

[0023] Preferably, in step S1, the elimination principle is as follows:

[0024] Are the project application materials complete and are they formatted correctly?

[0025] Does the project comply with relevant national, industry, and corporate policies and standards?

[0026] Does the project conflict with higher-level plans, including district and county power distribution network development plans and territorial spatial plans?

[0027] Preferably, in step S2, Category A - Network Reinforcement Type refers to the construction or renovation of new lines and the addition of substations; Category B - Equipment Upgrade Type refers to the replacement of old transformers or switchgear and intelligent transformation; Category C - Load Satisfaction Type refers to upgrade projects for new user loads or to solve the problem of heavy overload of lines and transformers; Category D - New Energy Access Type refers to supporting projects for the access of distributed new energy to the power grid; and Category E - Emergency Defect Elimination Type refers to sporadic projects to solve specific safety hazards and improve power supply reliability.

[0028] Preferably, in step S3, the comprehensive evaluation index system is as follows:

[0029] .

[0030] Preferably, in step S4, the data standardization processing principle is as follows: Let Let be the original value of the i-th item on the j-th indicator. Given its standardized value, then:

[0031] For benefit-type indicators, the standardized formula is: ;

[0032] For cost-related indicators, the standardized formula is: ;

[0033] In the formula, The maximum value of all participating projects on the j-th indicator. It represents the minimum value of all participating projects on the j-th indicator.

[0034] Preferably, step S5 includes the following steps:

[0035] First, a judgment matrix is ​​constructed through expert scoring, and the consistency test is satisfied, with a consistency ratio CR < 0.1;

[0036] Then, the weights of each indicator are calculated. And satisfy ;

[0037] In the formula, Let be the weight of the j-th indicator, and n be the total number of evaluation indicators.

[0038] Preferably, in step S6, the weighted summation model calculation formula is:

[0039] ;

[0040] In the formula, This is the overall quantitative score for the i-th item.

[0041] Preferably, in step S8, the qualitative adjustment is performed. Used to correct quantitative scores. .

[0042] Preferably, in step S9, the formula for calculating the final score of the project is:

[0043] ;

[0044] In the formula, The final priority score for the i-th item. The overall quantitative score for the i-th item is... The qualitative adjustment score is for the i-th item.

[0045] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0046] (1) This invention transforms the value of a project into a calculable score through specific formulas under the three dimensions of technical necessity, economic benefits and social strategy. At the same time, it uses extreme value standardization and AHP weighting method to measure all indicators on the same standard, ensuring the comparability between different projects. The final comprehensive quantitative score is an objective value, which greatly reduces the space for subjective judgment.

[0047] (2) This invention calculates the final score and sorts the items to form a clear list of project priorities, which makes it convenient for decision-makers to select items from the highest-ranked items in order of total budget, like looking at a menu, until the budget is exhausted. This ensures that every penny is invested in the projects with the highest comprehensive value, which fundamentally improves investment efficiency.

[0048] (3) This invention effectively balances short-term and long-term needs through weight settings, and enterprises can dynamically adjust the weights of each dimension according to their strategic priorities at different times.

[0049] (4) This invention filters out projects with incomplete materials or that do not conform to the plan at the beginning of the evaluation, ensuring the standardization of the reserve. At the same time, through on-site verification and scheme demonstration, it requires multiple schemes to be compared and selected to ensure that the selected scheme is the best one, rather than the only one or the first one that comes to mind. This directly improves the lean level of each project. Moreover, through dynamic entry management, it breaks the drawback of the reserve being "once entered, always entered". It can promptly remove projects that are no longer urgent due to changes in circumstances and open up channels for newly emerging urgent projects, so that the reserve can always maintain its vitality and accuracy. Detailed Implementation

[0050] The technical solution of the present invention will be further described in detail below through embodiments.

[0051] This invention provides a method for evaluating power grid construction reserve projects, comprising the following steps:

[0052] S1, Compliance Review: Eliminate projects that do not meet the basic requirements to ensure the standardization of the reserve. Projects that pass the review proceed to step S2, where they are returned for rectification.

[0053] The following are the principles for eliminating items that do not meet the basic requirements:

[0054] Are the project application materials complete and are they formatted correctly?

[0055] Does the project comply with relevant national, industry, and corporate policies and standards?

[0056] Does the project conflict with higher-level plans, including district and county power distribution network development plans and territorial spatial plans?

[0057] S2, Project Type Classification: Based on the project construction purpose and technical characteristics, it is divided into Category A - Network Reinforcement Type, Category B - Equipment Upgrade Type, Category C - Load Satisfaction Type, Category D - New Energy Access Type, and Category E - Emergency Defect Elimination Type, so as to adopt more targeted evaluation indicators in the future.

[0058] Among them, Category A - Reinforced network type: new or renovated lines, additional substations, etc.;

[0059] Among them, Category B - Equipment Upgrade Type: Replacement of old transformers or switchgear, intelligent transformation, etc.

[0060] Among them, Category C - Load Satisfaction Type: Upgrade projects to cope with new user loads or solve heavy overloads of lines and transformers;

[0061] Among them, Category D - New Energy Access Type: is a supporting project for the grid access of distributed new energy sources such as wind and solar power;

[0062] Among them, Category E - Emergency Repair Type: miscellaneous projects to solve specific safety hazards and improve power supply reliability.

[0063] S3, Evaluation Index System Construction: Establish a comprehensive evaluation index system covering three dimensions: technical necessity (T), economic benefits (E), and social and strategic aspects (S), and conduct quantitative scoring of projects.

[0064] The comprehensive evaluation index system is shown in the table below:

[0065] ;

[0066] Note: When using this evaluation index system, the indicators can be added or subtracted according to the actual situation.

[0067] S4, Data Standardization: Eliminate dimensional differences among indicators by standardizing the original data using the extreme value method, transforming it into dimensionless data. Interval values.

[0068] The data standardization processing principle is as follows: Let be the original value of the i-th item on the j-th indicator. Given its standardized value, then:

[0069] For benefit-type indicators (the larger the indicator value, the better), the standardized formula is: ;

[0070] For cost-related indicators (the smaller the indicator value, the better), the standardized formula is: ;

[0071] In the formula, The maximum value of all participating projects on the j-th indicator. It represents the minimum value of all participating projects on the j-th indicator.

[0072] S5, Determining Indicator Weights: The Analytic Hierarchy Process (AHP) is used to determine the relative weights of each dimension and indicator, which reflects the importance of different indicators in the overall evaluation.

[0073] First, a judgment matrix is ​​constructed by scoring by experts (from technical, financial, planning and other departments) and the consistency test is satisfied, with a consistency ratio CR < 0.1;

[0074] Then, the weights of each indicator are calculated. And satisfy ;

[0075] In the formula, Let be the weight of the j-th indicator, and n be the total number of evaluation indicators.

[0076] S6, Overall Quantitative Score Calculation: The overall quantitative score for each item is calculated using a weighted summation model. .

[0077] The formula for the weighted summation model is as follows:

[0078] ;

[0079] In the formula, This is the overall quantitative score for the i-th item.

[0080] S7, On-site verification and scheme demonstration: Organize experts to conduct on-site surveys, verify the accuracy of basic data, and compare multiple technical solutions to ensure that the solution is optimal.

[0081] First, conduct an on-site inspection, verify the equipment register, check for compliance, and confirm the accuracy of the problem description;

[0082] Then, multiple options are compared and evaluated to determine whether the proposed option is the optimal one;

[0083] Finally, opinions are given on the technical solutions for the project: recommendations, revised recommendations, and no recommendations. Recommended and revised projects proceed to step S8, while no-recommendation projects are returned.

[0084] S8, Qualitative Factor Adjustment: The project decision-making committee reviews qualitative factors not covered by the quantitative evaluation (such as technological foresight, social sensitivity, significant external risks, etc.) and assigns qualitative adjustment points. This is used to take into account factors that cannot be quantified and to fine-tune quantitative scores.

[0085] Among them, qualitative adjustment points When fine-tuning and correcting quantitative scores, one can take... .

[0086] S9, Final Priority Score Calculation: Final Score for the Project It is the sum of the quantitative score and the qualitative adjustment score.

[0087] The final score for the project is calculated using the following formula:

[0088] ;

[0089] In the formula, The final priority score for the i-th item. The overall quantitative score for the i-th item is... The qualitative adjustment score is for the i-th item.

[0090] S10, Project Priority Sequence Formation: Based on Final Score Sort all items in descending order to form a priority sequence.

[0091] S11, Investment Budget Fitting: Based on the total annual investment budget, projects are included in the annual investment plan in order of priority.

[0092] S12, Dynamic Inbound Management: Selected projects are formally included in the reserve pool, and a quarterly or semi-annual dynamic review mechanism is established. The project priority and pool structure are adjusted according to changes in the internal and external environment (such as load changes, policy adjustments, etc.). For newly emerging urgent issues, a fast track can be activated for evaluation and inclusion in the pool.

[0093] In summary, this invention organizes, analyzes, verifies on-site, and compares and evaluates basic data such as distribution network equipment ledgers, load conditions, and operation information based on the development plans, scheme drawings, and relevant supporting materials of distribution networks in various districts and counties. It assists enterprises in confirming whether project reserves are reasonable and whether investments are accurate from the aspects of design scheme demonstration and load development, and standardizes the management of power grid construction reserve projects.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A method for evaluating power grid construction reserve projects, characterized in that, Includes the following steps: S1, Compliance Review: Eliminate projects that do not meet the basic requirements to ensure the standardization of the reserve pool; S2, Project Type Classification: Based on the project construction purpose and technical characteristics, it is divided into Category A - Network Reinforcement Type, Category B - Equipment Upgrade Type, Category C - Load Satisfaction Type, Category D - New Energy Access Type, and Category E - Emergency Defect Elimination Type; S3, Construction of Evaluation Index System: Establish a comprehensive evaluation index system covering three dimensions: technological necessity (T), economic benefits (E), and social and strategic aspects (S). S4, Data Standardization: Eliminate dimensional differences among indicators by standardizing the original data using the extreme value method, transforming it into dimensionless data. Interval values; S5, Determining Indicator Weights: The Analytic Hierarchy Process (AHP) is used to determine the relative weights of each dimension and indicator. S6, Overall Quantitative Score Calculation: The overall quantitative score for each item is calculated using a weighted summation model. ; S7, On-site verification and scheme demonstration: Organize experts to conduct on-site surveys, verify the accuracy of basic data, and compare multiple technical solutions to ensure that the solution is optimal; S8, Qualitative Factor Adjustment: The project decision-making committee reviews qualitative factors not covered by the quantitative evaluation and assigns qualitative adjustment points. Qualitative factors include technological foresight, social sensitivity, and significant external risks; S9, Final Priority Score Calculation: Final Score for the Project It is the sum of the quantitative score and the qualitative adjustment score; S10, Project Priority Sequence Formation: Based on Final Score Sort all items in descending order to form a project priority sequence; S11, Investment Budget Fitting: Based on the total annual investment budget, projects are included in the annual investment plan in order of priority; S12, Dynamic Inbound Management: Selected projects are formally included in the reserve pool, and a quarterly or semi-annual dynamic review mechanism is established to adjust project priorities and pool structure according to changes in the internal and external environment.

2. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S1, the elimination principle is as follows: Are the project application materials complete and are they formatted correctly? Does the project comply with relevant national, industry, and corporate policies and standards? Does the project conflict with higher-level plans, including district and county power distribution network development plans and territorial spatial plans? 3. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S2, Category A - Network Reinforcement refers to the construction or renovation of new lines and the addition of substations; Category B - Equipment Upgrade refers to the replacement of old transformers or switchgear and intelligent transformation; Category C - Load Satisfaction refers to upgrade projects for new user loads or to solve the problem of heavy overload of lines and transformers; Category D - New Energy Access refers to supporting projects for the grid access of distributed new energy sources; and Category E - Emergency Defect Elimination refers to sporadic projects to solve specific safety hazards and improve power supply reliability.

4. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S3, the comprehensive evaluation index system is as follows: 。 5. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S4, the data standardization principle is as follows: Let Let be the original value of the i-th item on the j-th indicator. Given its standardized value, then: For benefit-type indicators, the standardized formula is: ; For cost-related indicators, the standardized formula is: ; In the formula, The maximum value of all participating projects on the j-th indicator. It represents the minimum value of all participating projects on the j-th indicator.

6. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, Step S5 includes the following steps: First, a judgment matrix is ​​constructed through expert scoring, and the consistency test is satisfied, with a consistency ratio CR < 0.1; Then, the weights of each indicator are calculated. And satisfy ; In the formula, Let be the weight of the j-th indicator, and n be the total number of evaluation indicators.

7. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S6, the formula for calculating the weighted summation model is: ； In the formula, This is the overall quantitative score for the i-th item.

8. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S8, the qualitative adjustment is performed. Used to correct quantitative scores. .

9. The evaluation method for power grid construction reserve projects according to claim 1, characterized in that, In step S9, the final score of the project is calculated using the following formula: ； In the formula, The final priority score for the i-th item. The overall quantitative score for the i-th item is... The qualitative adjustment score is for the i-th item.

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