Power grid undefined event type identification method and system

A technology of event types and identification methods, applied in knowledge expression, electrical digital data processing, instruments, etc., can solve problems such as time-consuming, and achieve the effect of high application value, improving completeness, and improving power grid monitoring capabilities

Pending Publication Date: 2021-12-24
JIANGSU ELECTRIC POWER CO +3
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  • Abstract
  • Description
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Problems solved by technology

[0008] c. The amount of grid monitoring alarm information is huge, and the efficiency of correlation analysis needs to be improved: With the operation of the power grid, the amount of alarm information generated in history is huge. Often, the amount of alarm information in a region can reach tens of millions in a month, and the correlation analysis of the computer will consume A lot of time, how to quickly analyze from massive data is an important issue

Method used

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  • Power grid undefined event type identification method and system
  • Power grid undefined event type identification method and system
  • Power grid undefined event type identification method and system

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0040] Such as figure 1 As shown, the present invention provides a method for identifying undefined event types in power grids, including:

[0041] (1) Alarm grouping

[0042] First, the alarm information needs to be grouped. The monitoring alarm information is the signal sent by each primary equipment and secondary equipment in the operation of the power grid. It is generally composed of the occurrence time, alarm content, affiliated plant, affiliated interval, and remote signaling ID, as follows:

[0043] "2021-02-26 01:38:35 Nanjing. Daguang Road Substation #2 Arc Suppression Coil PT\CT Power Loss Action Nanjing. Zhangcun Substation Nanjing. Zhangcun Substation / 35kV. Public Signal 12216022...

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Abstract

The invention discloses a power grid undefined event type identification method and system. The method comprises the following steps: acquiring alarm information sent when a power grid accident or equipment is abnormal; grouping the alarm information; obtaining a preset minimum support degree and a minimum confidence degree; and carrying out association analysis calculation on the grouped alarm information by utilizing an Apriori algorithm and preset minimum support degree and minimum confidence degree, and determining an association rule which represents an association relationship of each alarm combination in a certain unknown event. The method has the advantages that correlation analysis can be carried out on power grid monitoring alarm information, implicit unknown power grid event rules are mined, the method can be widely applied to national, branch and provincial dispatching centers, the power grid monitoring capacity is improved, monitoring personnel are helped to rapidly find problems, and economic and social benefits are improved.

Description

technical field [0001] The invention relates to a method and system for identifying undefined event types of a power grid, and belongs to the technical field of electric power system regulation. Background technique [0002] With the continuous expansion of the scale of the power grid and the continuous improvement of the level of intelligence of the power grid, the number of substations, power grid equipment and alarm information that are connected to the control agency to achieve centralized monitoring continues to increase. According to statistics, an average of more than 1,700 monitoring alarm signals need to be processed per day, which is equivalent to an average of 1 alarm signal needs to be analyzed, judged and dealt with every 50 seconds. The pressure of monitoring work is huge, and the daily workload is close to saturation. . [0003] The monitoring event generation engine analyzes the rules of power grid events, formulates event judgment rules, and converts real-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F16/2455G06F16/2457G06N5/02G06Q50/06
CPCG06F16/2465G06F16/24564G06F16/2457G06N5/025G06Q50/06
Inventor 范青武江曹阳白梓玮齐欣张广成刘慧勇潘琦刘圣楠
Owner JIANGSU ELECTRIC POWER CO
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