Multi-source data grid fault identification method

A power grid fault and identification method technology, applied in the direction of fault location, etc., can solve problems such as dispatcher interference, message confusion, and incomplete information transmission

Active Publication Date: 2014-04-16
STATE GRID CORP OF CHINA +3
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Problems solved by technology

[0004] In the actual application process, it is found that the protection device often sends a large amount of daily maintenance information. If such information is not filtered and sorted into a power grid fault report according to the real fault, it will inevitably cause data confusion at the dispatching end and cause interference to

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[0024] The following is based on the attached drawings figure 1 with figure 2 As shown, the technical scheme of the present invention is further described in detail in combination with the specific embodiment of the northeast network adjustment. The steps of the present invention are as follows:

[0025] (1) Set the relevant parameters, including whether the same protection device is the same fault time judgment standard DIFFTIMEIED, the centralized wave recording or action report correlation time of different devices on the same station, REPORT_LINK_TIME_SAME_STATION, the action report correlation time of different stations REPORT_LINK_TIME_DIFF_STATION, scattered wave recording start The comparison value DIFFTIMEREC between the time and the absolute time difference of the device that reported the first event; the standard for judging whether the same protection device has the same failure time is 20 seconds, the centralized wave recording or action report correlation time of d...

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Abstract

The invention provides a multi-source data grid fault identification method, and relates to the field of dispatching automation of electric power systems. When an electric system is dispatched, the advantage that diagnosis is conducted by only depending on protecting action information is not beneficial for the judgment and immediate processing of an accident. The multi-source data grid fault identification method includes the following steps of setting up a parameter, collecting grid operation information in real time, sorting out grid fault reports when receiving action information of a relay protection device, organizing action reports according to a protection device when a real fault signal is detected, taking the time scale of the earliest received protection action as the zero-time of the action report, if other protection action signals belong to the same device and the time gap between the action time and the zero-time is less than a threshold value, arranging the protection action signals to be in the same action report, if received scattered wave records belong to the same device and the time gap is less than the threshold value, arranging the received scattered wave records to be in the same report. According to the technical scheme, after a fault occurs in the electrical system, the real grid fault can be quickly and accurately identified, and a clear grid fault report can be organized.

Description

Technical field [0001] The invention relates to the field of power system dispatching automation, in particular to the processing of power grid fault reports and action reports in power grid relay protection and fault information systems. Background technique [0002] The traditional relay protection fault information system uses computer, network and communication technology to collect substation operation and fault information in real time, and provides a complete solution for the analysis and processing of relay protection information and grid fault information. The comprehensive analysis of the power grid provides a scientific basis for the dispatch management department to understand the grid fault situation in time, analyze the accident and locate the fault. [0003] After the failure occurs, a large number of event messages are sent to the master station. There is no direct correlation between these information. After receiving the information, the master station cannot int...

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Application Information

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IPC IPC(8): G01R31/08
Inventor 姜健宁孙晓彦盛海华杨东杨松伟赵纪元赵萍栗二虎潘武略王金福杨震安
Owner STATE GRID CORP OF CHINA
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