An automatic fault identification method and related device for auxiliary facilities of cable tunnels
A technology for ancillary facilities and cable tunnels, applied in the field of electric power, can solve problems such as inconvenient identification and failure to identify faults in cable tunnel ancillary facilities in advance
Active Publication Date: 2022-02-15
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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[0004] This application provides an automatic fault identification method and related devices for cable tunnel ancillary facilities, which are used to solve the technical problem that the prior art cannot identify the faults of cable tunnel ancillary facilities in advance and the identification is inconvenient
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[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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The present application discloses an automatic fault identification method and related devices for cable tunnel auxiliary facilities, including: performing anti-interference filtering processing on the three-phase current of the power supply line of the auxiliary facilities to obtain the fault signal characteristics; calculating the first fault characteristic quantity according to the fault signal characteristics , iteratively process the low-frequency energy of the zero-sequence current of the ancillary facilities to obtain the second fault feature quantity; respectively normalize the first fault feature quantity and the second fault feature quantity to obtain the first fault feature vector and the second fault feature vector vector, thus constituting the fault feature; calculate the fault feature sample according to the first fault feature vector and the second fault feature vector, and divide the fault feature to obtain the fault feature area; according to the fault feature sample and the fault feature area to identify. It solves the technical problem that the existing technology cannot identify the failure of the auxiliary facilities of the cable tunnel in advance, and the identification is inconvenient.
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...
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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