CN115759878A - Substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis - Google Patents
Substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis Download PDFInfo
- Publication number
- CN115759878A CN115759878A CN202211639913.9A CN202211639913A CN115759878A CN 115759878 A CN115759878 A CN 115759878A CN 202211639913 A CN202211639913 A CN 202211639913A CN 115759878 A CN115759878 A CN 115759878A
- Authority
- CN
- China
- Prior art keywords
- index
- weight
- evaluation
- transformer substation
- green construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a transformer substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis, and solves the problem of green low-carbon evaluation in the transformer substation green construction process. The method comprises the following steps: firstly, researching and integrating indexes of a green construction part in the construction process of a transformer substation, and constructing a 3-level evaluation index; secondly, establishing the weight of each index based on an analytic hierarchy process; and finally, evaluating each index and the total index by a fuzzy comprehensive evaluation method to obtain the green construction comprehensive evaluation of the transformer substation.
Description
Technical Field
The invention relates to a green construction evaluation method for a transformer substation, and solves the problem of green low-carbon evaluation in the green construction process of the transformer substation. Firstly, researching and integrating indexes of a green construction part in the construction process of a transformer substation, and constructing a 3-level evaluation index; secondly, establishing the weight of each index based on an analytic hierarchy process; and finally, evaluating each index and the total index by a fuzzy comprehensive evaluation method to obtain the green construction comprehensive evaluation of the transformer substation.
Background
With the continuous advance of the dual carbon strategy, terminal electrification is gradually gaining consensus as the main approach to achieving dual carbon. The electrification of the terminal can greatly improve the power utilization ratio of the terminal, the electric quantity demand is increased day by day, the continuous speed increase of the construction of electric power infrastructure is further caused, and the construction quantity and the construction speed of the transformer substation are also increased continuously. The transformer substation is used as a special building and also has the attribute of the building, the building can use a large amount of raw materials such as cement and steel, and meanwhile, the building process can consume a large amount of energy such as electric energy and petroleum and bring certain solid waste pollution, so the green and low carbon in the transformer substation building process also draws great attention of a power grid company.
The national grid company provides a design guide rule of two types and three new types for the construction of transformer substations in order to promote the carbon-saving potential of the national grid company and implement the green low-carbon strategy of sustainable development. The concept of 'two-type and three-new' is resource saving, environment friendly, new technology, new material, new process and industrialization, and the proposal of the concept not only helps to realize the organic combination of the traditional transformer substation building design and the green industrial building concept, but also responds to the call of the 'double-carbon' strategic target, and promotes the sustainable development of the transformer substation building field. The national grid company also establishes a 'Green construction Standard scoring table' of the transmission and transformation project while proposing a design guide, and scores the Green construction of the transformer substation through 3 aspects of design, implementation and delivery. However, the index scoring items are too many, and each index is simply added to obtain a total index, so that the importance degree and the hierarchical structure of different indexes cannot be embodied, and the actual application in engineering is not facilitated.
Therefore, according to green construction indexes in ' notice of green construction trial point working scheme for development of printing ' of national grid company Limited ', management, environment, conservation, technical innovation and field construction conditions are comprehensively considered, a fuzzy comprehensive evaluation method is adopted for modeling, and a relatively perfect transformer substation green construction index evaluation system is established.
Disclosure of Invention
The invention provides a transformer substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis, which comprises the following steps:
step 1) constructing a green construction index evaluation system of a transformer substation
Analyzing influence factors of green construction of the transformer substation, selecting evaluation indexes of the research from dimensions such as planning management, resource utilization, environmental protection, new technology application, green ecological benefits and the like, and constructing a 3-layer index structure comprising an element layer, a first-level index and a second-level index
Step 2) quantitative analysis is carried out on the weight of each index by applying an Analytic Hierarchy Process (AHP);
step 3) comprehensively evaluating the green construction of the transformer substation by a fuzzy comprehensive evaluation method based on the weight of the index determined by the analytic hierarchy process;
has the beneficial effects that:
aiming at the practical problem of the lack of a comprehensive evaluation method for green construction of a transformer substation, an index system comprising elements, a primary index and a secondary index is constructed by using national network company related documents and the actual development trend of the current green construction for reference; determining the weight of each index through an analytic hierarchy process to obtain a weight matrix; and then, comprehensively evaluating each element by a fuzzy comprehensive evaluation method to obtain a total evaluation index of the green construction of the transformer substation, so that the development of the green construction of the transformer substation can be guided.
Drawings
FIG. 1 is a flow chart of the method of the present invention
Detailed description of the invention
A more detailed description of a specific implementation of the present invention is provided below in conjunction with fig. 1.
Step 1), constructing a green construction evaluation index system of a transformer substation project;
(1.1) analyzing the influence factors of the green construction of the transformer substation, selecting the evaluation indexes of the research from dimensions such as planning management, resource utilization, environmental protection, new technology application, green ecological benefit and the like, constructing a 3-layer index structure comprising an element layer, a primary index and a secondary index, and using the index structure as shown in the following table
(1.2) determining the degree of importance between different weights the following weight matrix is constructed.
Wherein n represents n indexes in total; b ij Means the ratio of the weight of index i to the weight of index j, and the importance of the two can be determined, b ij =1 denotes that index i is as important as index j, and b ij <1 means that the index i is less important than the index j, b ij A value of > 1 indicates that the index i is more important than the index j.
Step 2) quantitative analysis is carried out on the weight of each index by applying an Analytic Hierarchy Process (AHP);
(2.1) normalizing the weight matrix B to obtain a normalized weight value
(2.2) pairs
Is obtained by row unit summation
And will be
Normalizing and calculating to obtain a weight value W i All weight values constitute a weight vector W.
W＝(W 1 ，W 2 ，…，W n ) T
(2.3) calculating the maximum characteristic root lambda of the weight matrix B max ：
(2.4) to ensure the consistency of the weight matrix, it should be such that λ is excluded max And other characteristic roots are close to zero, and the absolute value average of the sum of the rest n-1 characteristic roots is taken as an index for checking and judging the consistency of the matrix:
in general, the larger the CI, the greater the degree to which the weight matrix deviates from consistency, and vice versa. The order n of the weight matrix also has an influence on the consistency, and the larger n is, the larger the deviation caused by the subjective factor is judged to be, and the larger the consistency of the deviation is. And conversely, the smaller the deviation caused by subjective factors. Therefore, an average random consistency index, denoted as RI, is introduced. The RI increases with increasing rank of the weight matrix, as shown in the following table:
TABLE 2RI values
The ratio of the consistency index CI to the random consistency index RI of the same order is called the consistency ratio and is recorded as the consistency ratio
The consistency of the weight matrix is better when CR is smaller, and it is generally considered that the weight matrix meets a satisfactory consistency criterion when CR <0.1, otherwise the weight matrix needs to be modified.
Step 3) establishing a fuzzy comprehensive evaluation model, wherein the specific processing flow is as follows:
(3.1) determining an evaluation index set of an object to be evaluated, C = { C = { C } 1 ，c 2 ，L c m }。
And (3.2) determining a judgment set.
A panel of evaluations is a collection of results of various evaluations that may be made, and is generally denoted by V: v = { V = 1 ，v 2 ，L v m And (4) generally dividing the obtained product into 3-5 grades, and adopting four grades of 'excellent, good, medium and poor' in the text.
(3.3) determining a weight vector W of the evaluation factor, wherein the weight vector is determined by adopting the method in the previous section;
and (3.4) establishing a fuzzy membership matrix R.
And determining the fuzzy membership of each index according to the value of each object to be evaluated on each index.
(a) Qualitative index membership degree model
The degree of membership of the qualitative index in this document is calculated by fuzzy statistics. First, m experts (m > 10 in this text) are invited to determine which assessment level each indicator should belong to, respectively, according to a given assessment level (excellent/good/medium/poor). Second for all expertsThe evaluation results are counted, and the corresponding membership r is calculated ij 。
r ij ＝m ij /m
In the formula m ij Indicates the index c i Belongs to the comment v j M is the total number of experts, and a single-factor fuzzy comprehensive evaluation index matrix R of qualitative indexes can be obtained according to the number m i ＝(r i1 ，r i2 ，r i3 ，r i4 )。
(b) Quantitative index membership degree model
A common triangular membership function model is selected for quantitative index fuzzy evaluation, and specific membership functions are as follows:
according to the fuzzy membership degree of each index, if the green construction element A of the transformer substation project is subjected to, a fuzzy matrix R can be obtained A Similarly, the fuzzy matrix R of the elements B, C, D and E can be obtained B 、R C 、R D 、R E 。
(3.5) fuzzy comprehensive evaluation
And integrating the fuzzy membership matrix and the index weight by using a fuzzy algorithm based on the fuzzy membership matrix and the index weight, and normalizing the integrated operation result to obtain a comprehensive fuzzy evaluation result.
The fuzzy evaluation as element A is: f A ＝W A R A The overall fuzzy evaluation result is: f = W (F) A ；F B ；F C ；F D ).
(3.6) rating of evaluation object
And determining the evaluation grade corresponding to each object to be evaluated according to the maximum membership principle aiming at the comprehensively obtained fuzzy comprehensive evaluation result of the power transmission and transformation project.
Claims (3)
1. The method for constructing the green construction evaluation index system of the transformer substation engineering is characterized by comprising the following steps of:
step 1) analyzing the influence factors of the green construction of the transformer substation, selecting the evaluation indexes of the research from dimensions such as planning management, resource utilization, environmental protection, new technology application, green ecological benefit and the like, and constructing a 3-layer index structure comprising a factor layer, a primary index and a secondary index
And 2) carrying out weight division on indexes through expert knowledge, and constructing a weight matrix as follows.
2. Determining an index weight vector based on an analytic hierarchy process, which is characterized by comprising the following specific processing steps:
step 2.1) normalizing the weight matrix B to obtain a normalized weight value
Step 2.2) is right
Is obtained by row unit summation
And will be
Normalizing, calculating to obtain the weight value W i All weight values constitute a weight vector W
Step 2.3) calculating the maximum characteristic root lambda of the weight matrix B max
And 2.4) checking and judging the consistency of the matrix.
3. The fuzzy comprehensive evaluation model method is characterized by comprising the following specific processing steps of:
step 3.1) determining an evaluation index set of an object to be evaluated, wherein C = { C = 1 ,c 2 ,…c m }
Step 3.2) determine the evaluation set, V = { V = 1 ,v 2 ,…v m }
Step 3.3) establishing a fuzzy membership matrix R
And 3.4) carrying out fuzzy comprehensive evaluation on multiple indexes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211639913.9A CN115759878A (en) | 2022-12-20 | 2022-12-20 | Substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211639913.9A CN115759878A (en) | 2022-12-20 | 2022-12-20 | Substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115759878A true CN115759878A (en) | 2023-03-07 |
Family
ID=85348545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211639913.9A Pending CN115759878A (en) | 2022-12-20 | 2022-12-20 | Substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115759878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117592647A (en) * | 2023-11-20 | 2024-02-23 | 国网江苏省电力有限公司经济技术研究院 | Environment-friendly substation construction scheme evaluation method |
-
2022
- 2022-12-20 CN CN202211639913.9A patent/CN115759878A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117592647A (en) * | 2023-11-20 | 2024-02-23 | 国网江苏省电力有限公司经济技术研究院 | Environment-friendly substation construction scheme evaluation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liang et al. | Analysis of factors affecting economic operation of electric vehicle charging station based on DEMATEL-ISM | |
| Zhang et al. | Renewable energy project performance evaluation using a hybrid multi-criteria decision-making approach: case study in Fujian, China | |
| CN107871214A (en) | One kind is provided multiple forms of energy to complement each other energy supplying system System of Comprehensive Evaluation method for building up | |
| CN111967776A (en) | Assessment method for operation value chain of park comprehensive energy system | |
| CN109003010A (en) | The evaluation method of power grid project investment benefit | |
| CN109377093A (en) | Power distribution network project investment Benefit Evaluation Method | |
| Sarkar et al. | A multi‐criteria decision making approach for strategy formulation using Pythagorean fuzzy logic | |
| CN108364238A (en) | A kind of diversified powering mode selection method based on power supply area grade classification | |
| Li et al. | AHP-based resources and environment efficiency evaluation index system construction about the west side of Taiwan Straits | |
| CN115759878A (en) | Substation green construction evaluation method based on hierarchical analysis and fuzzy synthesis | |
| CN111460378A (en) | Power distribution network accurate investment project optimization method considering risk measure | |
| Du et al. | A hybrid group-making decision framework for regional distribution network outage loss assessment based on fuzzy best-worst and MARCOS methods | |
| CN111553608A (en) | Benefit evaluation method for urban distribution network comprehensive energy system | |
| CN113077155B (en) | Big data situation awareness-based power production technical improvement project evaluation model | |
| CN113240235A (en) | Evaluation method for development state of power grid company | |
| Li et al. | Power efficiency evaluation model for industrial users based on improved TOPSIS | |
| Ye et al. | Comprehensive evaluation of cleaner production in thermal power plants based on an improved least squares support vector machine model | |
| Liu et al. | Optimal selection of energy storage nodes based on improved cumulative prospect theory in China | |
| Liang et al. | Evaluation of investment projects on distribution network based on fuzzy algorithms | |
| CN111340370A (en) | Model-based power distribution network gridding evaluation management and control method | |
| Gao et al. | Comprehensive Evaluation System for the Investment Benefits of Distribution Network Engineering Based on Analytic Hierarchy Process | |
| Liu et al. | Collaborative decision-making of wind-storage combined power generation system based on a variety of improved evaluation methods | |
| Liu et al. | Investment optimization model for distribution networks projects with risk and efficiency constraints | |
| Can et al. | Research on Multi-factorial Investment Decision of Distribution Network Based on Input-output Assessment and Genetic Algorithm | |
| Wu | Theoretical foundation and model construction of comprehensive evaluation of distribution network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |