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Fuzzy comprehensive evaluation-based distribution automation terminal state evaluation method and system

A technology of fuzzy comprehensive evaluation and distribution automation, which is applied in information technology support systems, instruments, data processing applications, etc., and can solve problems such as strong subjectivity

Inactive Publication Date: 2017-05-10
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The expert scoring method has strong subjectivity and relies heavily on expert experience; the analytic hierarchy process has improved the expert scoring method, but there are still defects of strong subjectivity; the fuzzy comprehensive evaluation method has high objectivity, and at the same time Determining the weight of the state quantity through a reasonable method can better improve the accuracy of the state evaluation

Method used

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  • Fuzzy comprehensive evaluation-based distribution automation terminal state evaluation method and system
  • Fuzzy comprehensive evaluation-based distribution automation terminal state evaluation method and system
  • Fuzzy comprehensive evaluation-based distribution automation terminal state evaluation method and system

Examples

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Embodiment 1

[0084] see figure 1 , the steps of the distribution automation terminal state evaluation method based on fuzzy comprehensive evaluation in this embodiment include:

[0085] 1) Detect and determine the state quantity of the distribution automation terminal;

[0086] 2) Establish a distribution automation terminal state evaluation system based on the state quantities of the distribution automation terminals, and the distribution automation terminal state evaluation system is a hierarchical structure model composed of corresponding indicators of the state quantities;

[0087] 3) Determine the weight set W of the indicators corresponding to each state quantity in the state evaluation system;

[0088] 4) Set the state evaluation set V including each state level of the distribution automation terminal;

[0089] 5) Calculate the fuzzy membership function of each state level of the distribution automation terminal corresponding to each state quantity, and construct the fuzzy compreh...

Embodiment 2

[0170] This embodiment is basically the same as Embodiment 1, and the main difference is that in step 3) the method of determining the weight set W of each index corresponding to each state quantity in the state evaluation system is different. This embodiment specifically adopts step 3.1) of Embodiment 1 alone, and uses the analytic hierarchy process to determine the weight ω of each state quantity corresponding index in the state evaluation system i , the weight ω of each state quantity corresponding to the index i The composed weight set is used as the weight set W of the indicators corresponding to each state quantity in the state evaluation system.

Embodiment 3

[0172] This embodiment is basically the same as Embodiment 1, and the main difference is that in step 3) the method of determining the weight set W of each index corresponding to each state quantity in the state evaluation system is different. This embodiment specifically adopts step 3.2) of Embodiment 1 alone, and adopts the entropy weight method to determine the weight ω of each state quantity corresponding index in the state evaluation system si , the weight ω of each state quantity corresponding to the indicator si The composed weight set is used as the weight set W of the indicators corresponding to each state quantity in the state evaluation system.

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Abstract

The invention discloses a fuzzy comprehensive evaluation-based distribution automation terminal state evaluation method and system. The method comprises the following steps of: detecting and determining a state quantity of a distribution automation terminal, establishing a distribution automation terminal state evaluation system according to the state quantity of the distribution automation terminal, determining weight set W of an index corresponding to each state quantity in the state evaluation system, and setting a state evaluation set V which comprises each state level; calculating a fuzzy membership function, corresponding to each state level of the distribution automation terminal of the index, of each state quantity, and constructing a fuzzy comprehensive evaluation matrix R according to a membership degree calculated by the fuzzy membership function; and combining the obtained weight set W of the indexes corresponding to the state quantities and the fuzzy comprehensive evaluation matrix R, and determining a corresponding state level of the distribution automation terminal in the state evaluation set V according to a membership degree maximum principle. According to the method and system disclosed by the invention, the states of the distribution automation terminals can be reflected more correctly, the distribution automation terminals can be evaluated more comprehensively, and relatively high operability is provided.

Description

technical field [0001] The invention relates to a distribution automation terminal state evaluation technology, in particular to a distribution automation terminal state evaluation method and system based on fuzzy comprehensive evaluation. Background technique [0002] With the continuous deepening of smart grid construction, the number of distribution automation terminal equipment continues to grow, and the traditional maintenance method has been difficult to match the existing maintenance needs. Therefore, it is necessary to improve the maintenance method and control the status of distribution automation terminals. Through Preliminary state evaluation method, reasonable maintenance plan. On the one hand, the limited maintenance resources can be used reasonably, and on the other hand, the economic and stable operation of the distribution network can be improved. At present, there are no relevant national standards or regulations for the state evaluation of distribution aut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y04S10/50
Inventor 陈宏牟龙华冷华王伊健朱吉然唐海国龚汉阳张志丹郭文明彭春柳张磊李秩期曾丰
Owner STATE GRID CORP OF CHINA
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