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Power grid system fault analysis and early warning method based on fault classification processing

A power grid system and fault analysis technology, applied in the power grid field, can solve problems such as prolonged fault events, failure to prevent in advance, and poor user experience

Active Publication Date: 2019-05-31
GUANGDONG POWER GRID CO LTD INFORMATION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to a long time for fault location and prediction, which affects the fault point location time, resulting in prolonged fault events, problems that cannot be solved in time or prevented in advance, and user experience is not good

Method used

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  • Power grid system fault analysis and early warning method based on fault classification processing
  • Power grid system fault analysis and early warning method based on fault classification processing
  • Power grid system fault analysis and early warning method based on fault classification processing

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Experimental program
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Embodiment 1

[0036] Such as figure 1 As shown, the present invention is based on a fault classification processing power grid system fault analysis and early warning method, comprising the following steps:

[0037] Data collection and combing step: Obtain all kinds of fault data of the power grid system within a certain period of time, and form the fault data into time series data; specifically, set up multiple monitoring nodes on the power grid transmission line, for example, the monitoring nodes are two lines The wave recorder at the end, what this embodiment obtains is various fault data of each monitoring node of the power grid system within a certain period of time; there are as many types of fault data as there are time series data, for example, there are 3 types of error codes appearing, It represents that there are 3 kinds of faults, and then there are 3 time series. Specifically, the fault data is the number of times of error codes; what this embodiment obtains is the time series ...

Embodiment 2

[0092] The difference between this embodiment and Embodiment 1 is that it also includes:

[0093] The database is pre-stored with the address information of each monitoring node and the line information detected by the monitoring node. The line information includes installation time and address attributes, and the address attributes include indoor and outdoor. The address information of the monitoring nodes and the line information are one by one Corresponding; the monitoring nodes in this embodiment are wave recorders at both ends of the line; specifically, the line information is: what the monitoring node A detects is the line numbered 0012, and the installation time of this line is April 12, 2018. The line is located indoors; the monitoring node B detects the line numbered 0045, which was installed on May 1, 2018, and the line is located outdoors; the monitoring node C detects the line numbered 0036, and the line’s The installation time is April 12, 2018, and the line is lo...

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PUM

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Abstract

The invention discloses a power grid system fault analysis and early warning method based on fault classification processing, and relates to the technical field of power grids. The method comprises the following steps: a data acquisition and sorting step: acquiring various fault data of a power grid system in a certain time period, and forming time sequence data by using the fault data; a fault type classification step: judging whether faults occur periodically or not according to the time sequence data, and classifying the fault types according to whether the faults have periodicity; and an early warning step: respectively establishing prediction models for the classified faults, inputting different types of time series data into the corresponding prediction models to obtain prediction results, establishing an early warning red line by taking the prediction results as centers and taking a preset multiple of standard deviation as a width, and judging whether to carry out early warningor not according to the early warning red line. Different prediction models for different types of faults are constructed, so as to pre-judge and warn the different types of faults.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a fault analysis and early warning method for power grid systems based on fault classification processing. Background technique [0002] In recent years, with the continuous development of computer and communication technology and its application in power grid management, the management efficiency of the power grid system has been greatly improved, and the safe and stable operation of the power grid system has been guaranteed. Intelligent electronic devices such as digital protection and fault recorders record large amounts of data when the grid fails or is disturbed. For example, when a fault occurs on the power grid transmission line, the relay protection equipment and wave recorder at both ends of the line generate fault information. Through the above-mentioned methods of relay protection fault information summary and analysis, power grid fault judgment and other methods, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G06K9/62
Inventor 彦逸李波占力超肖建毅梁运德尚艳伟钟苏生周开东林细君麦晓辉王飞鸣杨永娇曾朝霖陈守明唐亮亮林强黄巨涛温柏坚
Owner GUANGDONG POWER GRID CO LTD INFORMATION CENT