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Recording file based line fault analysis

A technology for line faults and wave recording files, which is applied to fault locations, measuring devices, instruments, etc., can solve problems such as information interference, and achieve the effect of improving the control level

Inactive Publication Date: 2014-10-29
STATE GRID TIANJIN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, there is not much information that really plays a role in the fault identification of the control and operation personnel, and most of the information is interference information

Method used

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  • Recording file based line fault analysis
  • Recording file based line fault analysis

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Embodiment Construction

[0054] Below, the technical solution of the present invention will be further described in detail according to the accompanying drawings in conjunction with a specific embodiment of a line C-phase ground fault (such as figure 1 Shown is the flow chart of the line fault analysis method based on wave recording file of the present invention), described line fault analysis method comprises the following steps:

[0055](1) Obtain the basic parameters and channel configuration of a line, including line positive sequence resistance, positive sequence reactance, zero sequence resistance, zero sequence reactance, line length, line three-phase current channel number (12, 13, 14), line three Phase voltage channel number (0, 1, 2), line protection action channel number (95, 96, 97), line reclosing channel number (99);

[0056] (2) Organize the wave recording data, and perform primary and secondary value conversion on the three-phase current and three-phase voltage;

[0057] (3) It is cal...

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PUM

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Abstract

The invention discloses a comtrade recording file based line fault analysis method. The comtrade recording file based line fault analysis method performs line fault analysis through analog quantity of a comtrade recording file in combination with digital quantity, namely, judging a fault line according to line variation in three-phase current, three-phase voltage and protective actuating signals and extracting information such as a fault phase, an action phase, a fault character, the fault removal time, reclosure action conditions and the like. The comtrade recording file based line fault analysis method can analyze a recording file uploaded by a fault recorder, screen out intra-area fault files and identify key information such as fault equipment, time of fault and protective actions, fault removal time, reclosure action conditions, phase selection, distance measurement and fault current.

Description

technical field [0001] The invention is applied in the field of power system dispatching automation, especially in the relay protection and fault information system of the power grid, and specifically relates to a line fault analysis method based on comtrade wave recording files. Background technique [0002] When the equipment fails, a large number of protection devices and fault recorders in the same area are activated at the same time, and a large amount of fault data is sent to the dispatch control center at the same time. However, there is not much information that really plays a role in the fault discrimination of the control and operation personnel, and most of the information is interference information. In order to eliminate the hidden danger of "data flooding" and filter interference information, the present invention intelligently analyzes the fault data uploaded by the fault recorder, that is, analyzes the fault characteristics of the wave recording file, elimina...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01R31/02
Inventor 孙晓彦范广民黄易赵纪元郭凌旭杨东高翔陈红雨
Owner STATE GRID TIANJIN ELECTRIC POWER
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