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Power distribution network investment decision evaluation method and system based on data envelopment analysis

An envelope analysis and evaluation system technology, applied in the field of investment decision-making of power system distribution network in the electric power industry, can solve the problems of distributed network evaluation model data collection, failure to achieve effective integration and full utilization, and failure to achieve integration. Avoid inaccurate data, good practicability, and comprehensive data collection effect

Inactive Publication Date: 2019-09-27
SICHUAN ZHONGDIAN AOSTAR INFORMATION TECHNOLOGIES CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. Distribution network investment decision-making evaluation indicators and evaluation model data collection is scattered, and effective integration has not been realized
[0010] At present, in the collection of indicators for distribution network investment decision evaluation, the marketing department of the power supply company manages the power information of the distribution network according to users, station areas, etc., and the dispatching department manages the operation information of the distribution network according to the management load of lines and distribution transformers. , the transportation inspection department manages information such as faults and power quality of the distribution network according to the equipment, the financial department manages the asset purchase and construction value information of the distribution network according to the asset card, and each department evaluates the distribution network according to their respective latitudes. Effectively integrated and fully utilized

Method used

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  • Power distribution network investment decision evaluation method and system based on data envelopment analysis
  • Power distribution network investment decision evaluation method and system based on data envelopment analysis
  • Power distribution network investment decision evaluation method and system based on data envelopment analysis

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Experimental program
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Effect test

Embodiment 1

[0041] The distribution network investment decision-making evaluation method based on data envelopment analysis analyzes the collected planning data, financial data, energy data and economic data through the data envelopment analysis algorithm, and obtains the distribution network regional energy flow, value flow, business The typical characteristics of the flow; calculate and process the energy flow, value flow and business flow of the distribution network, put the historical data into the knowledge base, and combine the knowledge base content and current data for analysis; the knowledge base is from input to output It is easy to store the logic in the database and reduce the hard-coded logic in the program; when the requirements change, the knowledge base stored in the database can be directly modified without modifying the program source code.

[0042] Data Envelopment Analysis (DEA) is a new field of interdisciplinary research in operations research, management science, and...

Embodiment 2

[0060] This embodiment is optimized on the basis of Embodiment 1. The selection of distribution network investment decision-making evaluation indicators needs to remove the differences caused by factors such as economic development level, grid scale, expected income, and total power consumption. The load conditions and investment economic attributes are proportionalized. At the same time, it is necessary to add and delete the evaluation indicators of each area in combination with the actual project conditions to form input-output evaluation indicators suitable for each power supply area. During the operation of the distribution network investment decision-making model, combined with artificial intelligence machine learning technology, the input-output evaluation indicators are dynamically revised, the model is continuously improved, and the rationality of indicator selection is improved.

[0061] like Figure 4 As shown, the steps to select indicators are as follows:

[0062]...

Embodiment 3

[0080] Distribution network investment decision evaluation system based on data envelopment analysis, such as figure 1 As shown, including an evaluation model, the evaluation model includes an envelope analysis unit, an indicator set generation unit, a processing unit, a knowledge base, and a result output unit, and the planning data, financial data, energy data and economic data are analyzed by the envelope analysis unit. Through analysis, the characteristics of energy flow, value flow and business flow in the distribution network area are obtained; secondly, the index set generation unit dynamically revises and maintains the indicators of the evaluation system; thirdly, through the processing unit, the energy flow, The three streams of value stream and business stream are calculated and processed, such as image 3 As shown in the figure, one is to form typical experience and store it in the knowledge base, the other is to learn from the energy flow, value flow and business ...

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Abstract

The invention discloses a power distribution network investment decision evaluation method and system based on data envelopment analysis, and the method comprises the steps: carrying out the analysis of the collected planning data, financial data, energy data and economic data through a data envelopment analysis algorithm, and obtaining the typical characteristics of the energy flow, value flow and business flow of a power distribution network region; putting the historical data into a knowledge base, and analyzing by combining the content of the knowledge base and the current data; wherein the knowledge base is logic from input to output and is convenient to store in a database, and hard coding logic in a program is reduced; when the demand changes, the knowledge base stored in the database can be directly modified without modifying the program source code. The system comprises an evaluation model, and the evaluation model comprises an envelope analysis unit, an index set generation unit, a processing unit, a knowledge base and a result output unit. According to the method, data envelope analysis is adopted, and dynamic revision of investment decision evaluation is achieved through a knowledge base.

Description

technical field [0001] The invention belongs to the technical field of investment decision-making of power system distribution network in the electric power industry, and particularly relates to a method and system for evaluating investment decision-making of distribution network based on data envelopment analysis. Background technique [0002] The distribution network is an important part of the power system and an important infrastructure on which the development of the national economy depends. It plays a vital role in the safe operation of the power system and the improvement of the economic benefits of enterprises. The construction and management level of the distribution network directly affects the safe operation, economic and social benefits of the power grid. Due to the imperfect system and technical limitations, equipment assets related to the distribution network have been more or less mismatched with the actual electricity demand. [0003] In the current develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0637G06Q10/06393G06Q50/06
Inventor 唐冬来杨帆吴磊覃麟吴文娟黄河于开蕊段常珑
Owner SICHUAN ZHONGDIAN AOSTAR INFORMATION TECHNOLOGIES CO LTD
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