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Method for evaluating comprehensive state of power transformation equipment

A technology of comprehensive state and power transformation equipment, applied in the direction of instruments, complex mathematical operations, data processing applications, etc., can solve single problems

Active Publication Date: 2021-06-15
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +3
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  • Abstract
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  • Application Information

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Problems solved by technology

The present invention proposes a comprehensive status evaluation method for substation equipment based on on-line monitoring data based on the single problem of current substation equipment status evaluation work

Method used

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  • Method for evaluating comprehensive state of power transformation equipment
  • Method for evaluating comprehensive state of power transformation equipment
  • Method for evaluating comprehensive state of power transformation equipment

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Embodiment Construction

[0065] Below in conjunction with embodiment the present invention is described in further detail.

[0066] Such as figure 1 As shown, a comprehensive state evaluation method for substation equipment, the steps are as follows:

[0067] S1. Import the status index data processing results, and divide the types of abnormal data into abnormal data sets caused by the abnormal operation of the online monitoring device Datasets that characterize abnormal states of power transformers : In the data cleaning stage, in order to mine the abnormal data in the online data, separate the different abnormal pattern data in the online data of the substation equipment, and divide them into two types according to the types of abnormal data, which are respectively operated by the online monitoring device. Anomaly data sets caused by anomalies of Datasets that characterize abnormal states of power transformers . The indicator data is the basis of the state evaluation work, and the cleaned d...

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Abstract

The invention discloses a method for evaluating the comprehensive state of power transformation equipment, and the method comprises the steps: importing a state index data processing result, and carrying out the state evaluation of a power transformer on the basis of a data set representing the abnormal state of the power transformer; classifying state indexes, processing index data, constructing a layered evaluation system, formulating an index weight by using a subjective and objective fusion weighting method, and obtaining a state evaluation result of the power transformer according to the index weight. The state evaluation of an on-line monitoring device is based on an abnormal data set caused by an abnormal operation of the on-line monitoring device. The state evaluation comprises three steps of constructing a representation relation between data of an abnormal mode and the abnormal state of the on-line monitoring device, representing the probability of the abnormal state, and completing the state evaluation of the on-line monitoring device by using a membership function in a fuzzy evaluation theory. State evaluation models of the power transformer and the on-line monitoring device are respectively established, so that a power transformation equipment comprehensive state evaluation system based on data driving is formed.

Description

technical field [0001] The invention relates to a comprehensive state evaluation method of power transformation equipment, which respectively evaluates a power transformer and a monitoring device according to online monitoring data, and belongs to the field of power equipment state evaluation. Background technique [0002] As the key equipment for energy conversion and transmission in the power system, substation equipment has many components. In the current evaluation guidelines for power transformers of the State Grid, all indicators reflecting the operation status of transformers are scored, and the scoring results are combined to obtain The final state result of the transformer. Although this evaluation method is very comprehensive, it ignores the relationship between the state and characteristics of the transformer during operation, and the evaluation results lack pertinence. And generally during the operation of the transformer, different indicators of the state quant...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06F17/16
CPCG06F17/16G06Q10/063114G06Q10/06393G06Q50/06
Inventor 童超朱自伟张益宁童军心李唐兵王华云张宇王鹏万华刘玉婷徐碧川童涛曾磊磊周友武
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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