Cable tunnel subsidiary facility fault automatic identification method and related device

A technology for ancillary facilities and cable tunnels, applied in the field of electric power, can solve the problems of inability to identify faults and inconvenient identification of ancillary facilities of cable tunnels in advance

Active Publication Date: 2021-12-07
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] This application provides an automatic fault identification method and related devices for cable tunnel ancillary facilities, which are used to s...

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  • Cable tunnel subsidiary facility fault automatic identification method and related device
  • Cable tunnel subsidiary facility fault automatic identification method and related device

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Embodiment Construction

[0046]In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0047] see figure 1 , an embodiment of the present application provides an automatic fault identification method for cable tunnel ancillary facilities, including:

[0048] Step 101: Collect the three-phase current of the power supply line of the auxiliary facility, perform anti-interference filtering processing on the three-phase current according to the preset ant...

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Abstract

The invention discloses a cable tunnel subsidiary facility fault automatic identification method and a related device. The method comprises the following steps: carrying out anti-interference filtering processing on three-phase current of an ancillary facility power supply line to obtain fault signal characteristics; obtaining a first fault characteristic quantity through calculation according to the fault signal characteristics, and carrying out iteration processing on the low-frequency energy of the zero-sequence current of the subsidiary facility to obtain a second fault characteristic quantity; performing normalization processing on the first fault feature quantity and the second fault feature quantity to obtain a first fault feature vector and a second fault feature vector so as to form fault features; calculating a fault feature quantity sample according to the first fault feature vector and the second fault feature vector, and performing region division on the fault feature to obtain a fault feature region; and identifying the fault of the subsidiary facility according to the fault characteristic quantity sample and the fault characteristic area. The technical problems that in the prior art, faults of subsidiary facilities of a cable tunnel cannot be recognized in advance, and recognition is inconvenient are solved.

Description

technical field [0001] The present application relates to the field of electric power technology, and in particular to an automatic fault identification method and a related device for ancillary facilities of a cable tunnel. Background technique [0002] In order to effectively eliminate the safety risk of working in confined spaces, a large number of key auxiliary facilities such as lighting, fans, and water pumps are installed inside the cable tunnel. Such facilities are used frequently, but the internal environment of the tunnel is poor, with high humidity and strong electric field, and metal parts are prone to corrosion and rust, resulting in a high failure rate. Among the many fault categories of the auxiliary facilities of the cable tunnel, the faults of the power supply lines of the auxiliary facilities account for a large proportion. [0003] At present, there are mainly two forms of fault identification for the auxiliary facilities of the cable tunnel, one is the f...

Claims

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Application Information

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IPC IPC(8): G06K9/00G01R31/00G01R31/08
CPCG01R31/00G01R31/083G01R31/088G06F2218/02G06F2218/08G06F2218/12
Inventor 杨毅高传薪方梓伦徐爽刘宗岳辛镇泳罗向源
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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