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Correction method, device and system for fault point of overhead line system with anchor section

A correction method and technology for fault points, which are applied to fault locations, measuring devices, and fault detection by conductor type, etc., can solve problems such as poor positioning accuracy, and achieve high positioning accuracy, accurate positioning, and precise positioning.

Active Publication Date: 2021-01-01
WUHAN SUNSHINE POWER SCI & TECH
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Problems solved by technology

[0007] The embodiment of the present application provides a method, device and system for correcting catenary fault points with anchor segments to solve the technical problem of poor positioning accuracy in related technologies

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  • Correction method, device and system for fault point of overhead line system with anchor section
  • Correction method, device and system for fault point of overhead line system with anchor section
  • Correction method, device and system for fault point of overhead line system with anchor section

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Embodiment Construction

[0053]In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0054] see figure 1 As shown, the embodiment of the present application provides a method for correcting a catenary fault point with an anchor segment, which includes steps:

[0055] S1: At least two traveling wave monitoring terminals are arranged at intervals on the catenary power supply line, and several anchor sections are arranged ...

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Abstract

The invention relates to a correction method, device and system for a fault point of an overhead line system with an anchor section; and the method comprises the steps: preliminarily obtaining the position of a fault point according to the time difference, collected by two traveling wave monitoring terminals, of a high-frequency transient traveling wave head, and recording the position as a firstfault point; according to the distance difference between the first fault point and the two traveling wave monitoring terminals and the distance between every two adjacent anchor sections, obtaining the number of the anchor sections with traveling wave lag; according to the lengths of the lower anchor branch and the upper anchor branch and the transmission speed of the traveling wave on the line,calculating the lag duration of the wave head of the traveling wave after passing through an anchor section; obtaining lag displacement of the traveling wave according to the number of anchor sectionslagged by the traveling wave, lag duration of the traveling wave head passing through one anchor section and transmission speed of the traveling wave on the line; and correcting the position of the first fault point according to the hysteresis displacement of the traveling wave to obtain the final position of the fault point. According to the correction method provided by the application, accurate positioning of the fault on the overhead line system line can be realized, and the positioning precision is higher.

Description

technical field [0001] The present application relates to the technical field of catenary fault location, in particular to a method, device and system for correcting catenary fault points with anchor segments. Background technique [0002] In recent years, with the rapid development of high-speed railways, more and more catenary power supply lines have been erected. However, the catenary power supply lines are erected in the open air along the railway line, the natural environment is harsh, and there is no backup line. Once the catenary power supply line trips, the train There will be interruptions in operation, and it is of great significance to solve the fault location problem of high-speed railway catenary to ensure the safe operation of railways. [0003] The traditional catenary fault location method adopts the impedance method, which cannot guarantee the accuracy of fault location due to the influence of excessive resistance and system operation status. Then, the trave...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R35/00
CPCG01R31/086G01R35/005Y04S10/52
Inventor 余刚华杨雷漆一帆刘霄宇朱军刘宜祥张利李昂高朝晖刘继源
Owner WUHAN SUNSHINE POWER SCI & TECH
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