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OPGW whole-wire monitoring and diagnosing system and method

A diagnostic system and a full-line technology, applied in the field of power equipment, can solve the problems of OPGW line abnormality that cannot be found as soon as possible, affecting the safe and reliable operation of transmission lines, lack of real-time monitoring of OPGW lines, etc., to meet the requirements of long-term operation, low power consumption and reliability. high effect

Active Publication Date: 2014-07-23
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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AI Technical Summary

Problems solved by technology

The current flowing through the OPGW line under normal conditions and short-circuit conditions will cause heating, and in severe cases, it will cause communication interruption and affect the safe and reliable operation of the transmission line
[0003] At present, operators need to analyze the current on the OPGW line under normal conditions and fault conditions through simulation calculations, but there is a lack of real-time monitoring of the OPGW line during operation, and it cannot be found as soon as possible when the OPGW line is abnormal

Method used

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  • OPGW whole-wire monitoring and diagnosing system and method
  • OPGW whole-wire monitoring and diagnosing system and method
  • OPGW whole-wire monitoring and diagnosing system and method

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Embodiment Construction

[0041] The technical solution of the present application will be further described in detail through specific embodiments in conjunction with the description and the figures below.

[0042] The present application discloses an online monitoring and diagnosis system for an OPGW line. The system can measure the current on the OPGW line under normal conditions and short-circuit conditions, and can diagnose whether the OPGW line is operating normally through the measured data. The system consists of three parts: terminal, collector and master station. The terminal is installed on the OPGW line, and uses the principle of electromagnetic induction to measure the current of the OPGW line. The terminal includes a low-power CPU module with built-in AD function, a temperature measurement module, a self-powered power supply module and a radio frequency communication module. The collector is installed on the line tower, receives the data from the terminal, and then uploads the data to th...

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Abstract

The invention provides an OPGW online monitoring and diagnosing system. By means of the system, currents of an OPGW can be measured under normal and short-circuit conditions, and whether the OPGW operates normally or not can be diagnosed through actually-measured data. The system is composed of a terminal, a collector and a master station. The terminal is arranged on the OPGW, and the currents of the OPGW are measured by means of the electromagnetic induction principle. The collector is arranged on an overhead wire structure, receives data of the terminal, and uploads the data to the master station. The collector comprises a radio frequency communication module and a GPRS module. The master station is arranged inside a transformer substation or a dispatching center and provided with a mobile communication module, and the mobile communication module is used for receiving the data of the collector, monitoring the currents and temperature of the OPGW, and analyzing the operation state of the OPGW. The OPGW online monitoring and diagnosing system has the mature technology and is high in reliability.

Description

technical field [0001] The invention belongs to the technical field of electric power monitoring, and specifically relates to an electric power device, which is suitable for OPGW lines of 110-500kV and above, capable of monitoring the temperature and current of the OPGW line, and analyzing the operating state of the OPGW line. Whether the OPGW line is abnormal can be diagnosed by using the current on the OPGW line under normal conditions and short-circuit conditions. Background technique [0002] my country's 110-500kV transmission lines widely use OPGW lines as communication lines and lightning protection lines (also known as optical fiber composite overhead ground wires). During normal operation, a certain current will be induced on the OPGW line. A large short-circuit current will flow. The current flowing through the OPGW line under normal and short-circuit conditions will cause heating, and in severe cases, it will cause communication interruption and affect the safe an...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01K1/02G01K1/024
Inventor 齐郑饶志张慧汐李志李砚蔡志伟
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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