Power line fault intelligent diagnosis method and device

A power line and intelligent diagnosis technology, which is applied in the direction of fault location, measuring device, and fault detection according to conductor type, etc., can solve the problems of transmission line fault analysis, low search efficiency, and affecting the safe and stable operation of transmission lines, so as to improve the reliability of power supply performance and reduce the workload of line inspection

Pending Publication Date: 2021-11-09
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

[0004] In order to overcome the problems existing in the above-mentioned prior art, the present invention proposes a power line fault intelligent diagnosis method and device to solve the problem that the transmission line fault analysis and search efficiency is low, which seriously affects the safe and stable operation of the power line

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  • Power line fault intelligent diagnosis method and device
  • Power line fault intelligent diagnosis method and device
  • Power line fault intelligent diagnosis method and device

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specific Embodiment approach

[0066] Such as figure 1 As shown, a power line fault intelligent diagnosis device of this embodiment includes:

[0067] The online monitoring module 1 is used for online monitoring of overhead transmission lines to obtain online monitoring data;

[0068] Judgment module 2, used to obtain the online monitoring data of the online monitoring module 1, and judge whether the online monitoring data includes fault waveforms;

[0069] Historical database 3, used to save historical fault data of overhead transmission lines;

[0070] The data module 4 is used to obtain the historical fault data of the historical database 3, the online monitoring data and judgment results of the judgment module 2, and process the online monitoring data according to the judgment results combined with the historical fault data to obtain the fault probability corresponding to the fault cause of the overhead transmission line ;

[0071] The correction module 5 is used to obtain the failure probability of ...

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Abstract

The invention relates to a power line fault intelligent diagnosis method and device in the technical field of power transmission lines. The device comprises an online monitoring module, a judgment module, a historical database, a data module and a correction module. The method comprises the following steps: S101, judging that a faulted overhead transmission line is provided with a distributed device; S102, acquiring traveling wave characteristics acquired by the distributed device; s103, analyzing and processing the traveling wave features, and calculating to obtain a fault probability P1; s104, correcting P1 in combination with online monitoring data, and preliminarily determining a fault reason; S105, acquiring a power frequency waveform acquired by the distributed device; s106, analyzing and processing the power frequency waveform, and calculating to obtain a fault probability P2; and S107, correcting the P2 in combination with online monitoring data, and further determining a fault reason. The problem that safe and stable operation of the overhead transmission line is seriously affected due to low efficiency of fault reason analysis of the overhead transmission line is solved.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, in particular to an intelligent diagnosis method and device for power line faults. Background technique [0002] At present, the fault diagnosis of transmission lines is mainly based on manual experience, and adopts the elimination method to analyze the fault types of transmission lines and calculate the location of fault points one by one. There is a lack of systematic and comprehensive analysis and diagnosis technology, especially under the condition of multi-source information, it is impossible to give a clear fault The reason is that the analysis and search efficiency of transmission line faults is low, which seriously affects the safe and stable operation of transmission lines. [0003] Transmission line faults mainly include faults caused by lightning strikes, mountain fires, weather, icing, and bird damage. The identification of the cause of the fault needs to be based on...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01D21/02
CPCG01R31/085G01R31/088G01D21/02Y04S10/52
Inventor 黄志都唐捷崔志美张炜张玉波冯玉斌欧阳健娜邬蓉蓉李珊
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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