Method for predicting state quantity of cable, method and device for determining operating state of cable

A technology of running state and state quantity, which is applied in the prediction of the state quantity of the cable and the field of determining the running state of the cable

Active Publication Date: 2021-04-16
CHINA ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, the present invention proposes a method for predicting the state quantity of a cable, a method and a device for determining the operating state of the cable, aiming at solving the problem of accurate prediction and evaluation of the cable

Method used

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  • Method for predicting state quantity of cable, method and device for determining operating state of cable
  • Method for predicting state quantity of cable, method and device for determining operating state of cable
  • Method for predicting state quantity of cable, method and device for determining operating state of cable

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Embodiment 1

[0192] Table 3 shows the classification of fault types according to Embodiment 1 of the present invention. As shown in Table 3, each fault type is divided into different fault symptoms, and each fault symptom corresponds to the total number of single state quantity exceeding the standard and the number of single state quantity exceeding the standard.

[0193] Table 3 Classification of fault types in Embodiment 1

[0194]

[0195] According to the data in Table 3, calculate the weight coefficient.

[0196]

[0197] Table 4 shows the weight coefficient value of each fault symptom in each fault category calculated by the above formula.

[0198] Table 4 The failure weight coefficient of embodiment 1

[0199]

[0200] Table 5 shows the relative deterioration degree of each failure symptom.

[0201] The relative degree of deterioration of the failure symptom of table 5 embodiment 1

[0202]

[0203] According to the relative degree of deterioration and weight coeff...

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Abstract

A method for predicting the state quantity of a cable, a method and a device for determining the operating state of the cable, the method for predicting the state quantity of the cable includes: obtaining the time series of the state quantity of the cable to be predicted; S Carry out data division to obtain the divided sequence F ; Use the pre-built long-short-term memory LSTM model to divide the sequence F Make predictions and get sequence F predicted value of . Through the method for predicting the state quantity of the cable provided by the embodiment of the present invention, the method and device for determining the operating state of the cable, the deduction method for multiple operating states of the cable line based on the long short-term memory LSTM model, for multiple state quantities continuous time The joint deduction of multi-state quantities of a single node is carried out in sequence to realize the big data analysis of high-voltage cable state quantities, improve the accuracy of cable state prediction, provide technical support for high-voltage cable state deduction and evaluation, and ensure the operation reliability of high-voltage transmission cables.

Description

technical field [0001] The invention relates to the field of cable state monitoring, in particular to a method for predicting the state quantity of a cable, a method and a device for determining the running state of the cable. Background technique [0002] With the development of economy, my country's cable construction is in a period of rapid development. However, different cables have different manufacturing processes and laying conditions. They are subjected to combined effects of electricity, heat, and machinery during operation, and are also affected by the natural environment (temperature, air pressure, humidity, and pollution, etc.). It will cause insulation aging, fatigue and wear, which will gradually reduce the cable insulation performance and equipment operation reliability, which will threaten the operation reliability of the power system. In order to ensure the reliable operation of cable lines, improve the level of cable operation and maintenance, and reduce t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06G06K9/62G06N3/04
CPCG06Q10/04G06Q50/06G06N3/049G06F18/241G06F18/214
Inventor 欧阳本红王昱力夏荣王格李文杰邓显波刘松华费雯丽刘宗喜赵鹏张振鹏
Owner CHINA ELECTRIC POWER RES INST
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