A method for fault diagnosis of on-line monitor equipment of transmission line

A technology for monitoring equipment and transmission lines, applied in the field of big data processing, can solve the problems of heavy operation and maintenance workload of monitoring equipment, frequent occurrence of monitoring equipment failures, and undiagnosable causes of failures, so as to reduce the difficulty and workload, and improve the availability. reliability and the effect of real-time monitoring

Active Publication Date: 2019-03-15
国网湖北省电力有限公司黄石供电公司 +1
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Problems solved by technology

[0007] The purpose of the present invention is to solve the deficiencies in the prior art, and to provide a fault diagnosis method for the on-line monitoring equipment of transmission lines, so as to solve the problems that the

Method used

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  • A method for fault diagnosis of on-line monitor equipment of transmission line
  • A method for fault diagnosis of on-line monitor equipment of transmission line
  • A method for fault diagnosis of on-line monitor equipment of transmission line

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Example Embodiment

[0059] See figure 1 , A method for fault diagnosis of transmission line online monitoring equipment, including the following steps: (1) Obtain the fault code uploaded by the online monitoring equipment;

[0060] (2) Use the 3δ criterion to process the acquired fault codes, keep the fault codes belonging to random errors, and eliminate the fault codes that contain gross errors;

[0061] (3) Use the fault code obtained in the previous step of the V system for coding to obtain the characteristic value of the group of fault codes, and establish a fault information database according to the extracted characteristic value.

[0062] The V system is an eigenvalue description method based on the improved Haar wavelet function. Its essence is a kind of piecewise linear complete orthogonal function system. Its basis function is obtained by copying and translating the 0th order Haar function. One of them The expression of the n-order V system is:

[0063]

[0064] i=1,2,…,k+1, k=0,1,2,3…; j=1,2,...

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Abstract

The invention discloses a fault diagnosis method for on-line monitoring equipment of a transmission line, comprising the following steps: (1) obtaining a fault code uploaded by the on-line monitoringequipment; (2) adopting 3 delta criterion to process the acquired fault code, retaining the fault code belonging to random error and eliminating the fault code containing gross error; (3) adopting thefault code obtained in the last step of the V system to code to obtain the eigenvalues of the set of fault codes, and establishing a fault information database according to the extracted eigenvalues;(4) the neural network self-learning training is carried out to the fault information obtained in the previous step, and the trend is predicted; (5) Comparing the eigenvalues of the V system of the predicted data, the diagnostic results are given; The invention realizes multiple data processing and accurate diagnosis of fault data uploaded by the on-line monitoring equipment, is flexible and changeable in control, is convenient for monitoring personnel to discover fault points in time and carry out maintenance, and improves the efficiency of operation and maintenance work.

Description

technical field [0001] The invention relates to the technical field of big data processing, in particular to a fault diagnosis method for transmission line online monitoring equipment. Background technique [0002] In recent years, with the development of power grid information technology, an online monitoring system for transmission lines has appeared in the operation and maintenance of power grids. The main purpose of this system is to remotely monitor the operating conditions of transmission lines through monitoring equipment installed on transmission lines. Maintenance, greatly reducing the difficulty and workload of transmission line operation and maintenance work, and improving the efficiency of operation and maintenance work. However, in the actual use process, the existing online monitoring system has some problems such as frequent occurrence of monitoring equipment failures, undiagnosed causes of failures, and heavy workload of operation and maintenance of monitorin...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06N3/08
CPCG06N3/08G06F30/20
Inventor 吴风亮严锐贺思阳张帆周文胜张鑫刘前进
Owner 国网湖北省电力有限公司黄石供电公司
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