Order relation method-entropy weight method-based county power grid evaluation method

A technology of entropy weight method and order relationship, which is applied in the field of evaluation of the development of county power grids, which can solve the problems of lagging development level and restricting the development of county power grids.

Inactive Publication Date: 2016-01-27
STATE GRID CORP OF CHINA +2
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Problems solved by technology

For a long time, the development of county power grid has not received enough attention, and its development level is relatively lagging behind, which seriously limits the development of county power grid.

Method used

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  • Order relation method-entropy weight method-based county power grid evaluation method
  • Order relation method-entropy weight method-based county power grid evaluation method
  • Order relation method-entropy weight method-based county power grid evaluation method

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Embodiment Construction

[0057] A county-level power grid evaluation method based on the sequence relationship method-entropy weight method, the steps are as follows:

[0058] Step 1: Filter indicators to establish an indicator system and obtain corresponding indicator values.

[0059] The index system established as figure 1 As shown, it includes first-level indicators and second-level indicators. The first-level indicators include equipment level, technical level, load capacity, grid level and operation management level. The secondary indicators reflecting the level of equipment include overhead line insulation rate, cable conversion rate, high-loss power distribution ratio, substation aging rate, line aging rate, and unqualified ratio of trunk sections; the secondary indicators reflecting technical level include 10KV The utilization rate of outgoing line intervals, the proportion of high installation and distribution capacity, the average household distribution capacity and the proportion of powe...

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Abstract

The invention discloses an order relation method-entropy weight method-based county power grid evaluation method. The method comprises the following steps: 1, establishing an index system and obtaining index values; 2, classifying and normalizing the indexes; 3, determining the subjective weight of the index system; 4, determining the objective weight of the index system; 5, calculating the combined weight; and 6, calculating comprehensively to obtain an evaluation result. According to the order relation method-entropy weight method-based county power grid evaluation method, weighting is carried out through a combined weighting method, and the experience advantages of the experts or workers and the structures of the data of the indexes are combined, so that the evaluation result which is more reasonable than the result obtained through a single weighting method is obtained. The order relation method embodies the essential feature of the decision-making thought of people, and the construction of a judgment matrix and consistency check are not required for the decomposition, judgment and integration, so that the calculation amount is greatly decreased, and the method is easy to grasp and apply. The entropy weight method embodies the structural feature of the data, so that the method is simple and easy to realize. And the two methods can make up the disadvantages that the single subjective weighting method completely depends on subjective consciousness and the single objective weighting method completely depends on data structure.

Description

technical field [0001] The invention relates to the field of power systems, in particular to an evaluation method for the development of county power grids. Background technique [0002] County power grid is an important part of power grid construction. With the development of economic construction, users have higher and higher requirements for power supply reliability and power quality of power grid. However, the development of county power grid has not been paid enough attention for a long time, and its development level is relatively lagging behind, which seriously limits the development of county power grid. Therefore, it is necessary to find a reasonable and accurate evaluation method to find out the actual situation of the county power grid, quantitatively analyze the development status of the county power grid, and provide a basis for the reasonable planning and investment transformation of the power grid. Contents of the invention [0003] Aiming at the deficienci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 郭勇田春筝王璟李秋燕王利利李科杨卓全少理李锰孙义豪田方媛张华一杨婉文福拴
Owner STATE GRID CORP OF CHINA
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