Power distribution network fault level prediction method and system considering weather factors

A technology for distribution network faults and fault levels, applied in the directions of calculation, design optimization/simulation, electrical digital data processing, etc., can solve the problems of low prediction accuracy of distribution network fault levels, reduce damage accidents, and improve accuracy. degree of effect

Pending Publication Date: 2021-10-29
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Aiming at the problem in the prior art that the prediction accuracy of the fault level of the distribution network is low, the present invention provides a method for predicting the fault level of the distribution network considering weather factors, including:

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  • Power distribution network fault level prediction method and system considering weather factors
  • Power distribution network fault level prediction method and system considering weather factors
  • Power distribution network fault level prediction method and system considering weather factors

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Embodiment 1

[0042] In the prior art, it is difficult to accurately predict the fault level of distribution network, and the present invention provides a distribution network fault grade prediction method for weather factors, such as figure 1 As shown, including:

[0043] Step 1, get the weather data of the set period;

[0044] Step 2, input the weather data of the setting period to a prediction in a pre-optimized fault grade prediction model to obtain a fault grade of the set period of distribution network;

[0045] Among them, the optimized fault grade prediction model is based on a multi-support vector machine, which is obtained by optimizing training using a pre-divided distribution network failure level and corresponding preprocessial historical meteorological data.

[0046] Prior to the step 1, the acquisition network is acquired in the fault time of the fault period, and the original weather data is pre-processed, and the processed historical meteorological data is obtained, and then th...

Embodiment 2

[0154] Based on the same inventive concept, the present invention also provides a distribution network fault grade prediction system for the weather factor, such as Figure 5 As shown, including:

[0155] Get the module to obtain meteorological data in the set time period;

[0156] The prediction module is used to input the weather data of the set time period to a prediction of the pre-optimized fault grade prediction model to obtain a fault level of the set time period.

[0157] Among them, the optimized fault grade prediction model is based on a multi-support vector machine, which is obtained by optimizing training using a pre-divided distribution network failure level and corresponding preprocessial historical meteorological data.

[0158] A fault grade prediction system for a distribution network with a weather factor, as well as:

[0159] Distribution Network Fault Level Division Module, Historical Meteorological Data Pretreatment Module.

[0160] First, obtain the running dat...

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Abstract

The invention provides a power distribution network fault level prediction method and system considering weather factors. The method comprises the following steps: acquiring meteorological data of a set time period; inputting the meteorological data of the set time period into a pre-optimized fault level prediction model for prediction to obtain a fault level of the power distribution network of the set time period, wherein the optimized fault level prediction model is obtained by performing optimization training on historical meteorological data obtained in advance and the historical fault level of the corresponding power distribution network based on a multi-support vector machine. Based on the multi-support vector machine model, the accuracy of fault level prediction of the power distribution network is improved, and accurate early warning can be effectively carried out on the fault which is about to occur in the power distribution network.

Description

Technical field [0001] The present invention relates to the field of power grid safety maintenance technology, and more particularly to a distribution network failure level prediction method and system for weather factors. Background technique [0002] With the continuous improvement of modern society, information and intelligent levels, electrical energy as an important part of secondary energy, not only in people's lives, but also a key role in social development. In reliability engineering, harsh weather conditions are the main causes of faults in distribution network equipment, which can trigger a series of electric disturbances. At present, the power supply company has not been able to further satisfy the demand for power supply reliability for the daily free patrol and fault. Especially in the premise of known weather factors, it is difficult to accurately predict potential risks, and the fault prediction warning, so it is impossible to effectively implement faulty measures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06F113/04G06F119/02
CPCG06F30/27G06F2113/04G06F2119/02
Inventor 杜晓东王立斌何开元刘成龙陈泽董娜赵百捷刘良帅
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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