Substation automation equipment state evaluation method and system

A technology for substation automation and equipment status, which is applied to instruments, character and pattern recognition, data processing applications, etc., and can solve problems such as inability to accurately describe uncertainty, difficulty in solving eigenvalues ​​and eigenvectors of judgment matrices, etc.

Inactive Publication Date: 2019-10-18
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

However, the above methods all use the combination of AHP and Delphi method to determine the weight of the target. However, with the diversification of substation equipment, in order to ensure the accuracy of the evaluation results, the number of indicators collected is also increasing. The calculation of the 1-9 ratin

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  • Substation automation equipment state evaluation method and system
  • Substation automation equipment state evaluation method and system
  • Substation automation equipment state evaluation method and system

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Embodiment Construction

[0042] Taking a certain substation automation equipment in Hunan as an example, the method and system for status evaluation of the substation automation equipment of the present invention will be further described in detail.

[0043] like figure 1 As shown, the implementation steps of the state evaluation method for substation automation equipment in this embodiment include:

[0044] 1) Classifying the offline state information and online state information of substation automation equipment and establishing an evaluation index system to obtain an evaluation index set U, which includes multiple offline state indicators and multiple online state indicators;

[0045] 2) For each state index in the evaluation index set U, generate parameters for dividing the state index into state grades to form a parameter set E;

[0046] 3) For each state index in the evaluation index set U, perform multiple evaluations according to the parameters in the parameter set E to obtain scoring data, ...

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Abstract

The invention discloses a substation automation equipment state evaluation method and system. The method comprises the steps of establishing an evaluation index system; dividing state levels and forming a parameter set; forming a plurality of fuzzy soft sets by utilizing expert evaluation data; obtaining an interval value fuzzy soft set by utilizing all the fuzzy soft sets; obtaining an integratedinterval value fuzzy set and an initial score by adopting a weighted fuzzy decision algorithm; normalizing the initial score to obtain a specific gravity value and a weight value; determining a scorevalue and a state level of each state index; and obtaining an importance sequence of the state indexes according to the index weights, judging existing fault dangers according to score values corresponding to the state indexes, and giving a corresponding early warning maintenance strategy after comprehensive analysis. According to the method, the problems of heavy calculation amount and possiblesorting consistency when the fuzzy analytic hierarchy process is used for determining the weight can be avoided, the comprehensive state of the substation automation system can be evaluated objectively and effectively, maintenance strategy reference is provided, and the method has the advantage of high expansibility.

Description

technical field [0001] The invention relates to the detection technology of substation automation equipment in the field of electric power engineering, in particular to a state evaluation method and system of substation automation equipment. Background technique [0002] With the development of smart grid, smart substations appear, which use modern advanced sensor, electronics, information, communication, control and software technologies to build a unified application platform. Through network communication and digital systems, the functions of the secondary system of the smart substation are fundamentally developing: in addition to the traditional functions of the main system such as control, protection and monitoring, the substation automation system will also provide more information related to new functions, Such as dynamic performance monitoring, system aging and dynamic capacity. Conventional sensing methods can already ensure simple insulation structure and excellen...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06K9/62
CPCG06Q10/0639G06Q50/06G06F18/24
Inventor 彭熹李龙崔卓李振文肖萍梁勇超潘飞来周帆谢培元姜新凡
Owner STATE GRID HUNAN ELECTRIC POWER
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