On-line monitoring system for electric power transmission line

Abstract

The invention discloses an on-line monitoring system for an electric power transmission line. The on-line monitoring system is characterized by comprising a monitoring center and a plurality of monitoring sites, and each monitoring site comprises a transmission line parameter collecting unit, a signal processing unit, an A / D converting unit and a control unit, wherein the signal processing unit is connected with the transmission line parameter collecting unit and used for filtering and amplifying collected transmission line parameters, the A / D converting unit is connected with the signal processing unit and used for carrying out analog-digital conversion on an output signal of the signal processing unit, and the control unit is connected with the A / D converting unit and used for judging the transmission line fault according to a transmitted transmission line parameter digital signal, determining the corresponding fault position and feeding the transmission line parameters and a judgment determining result back to the monitoring center in real time. According to the on-line monitoring system for the electric power transmission line, operation states and the parameters of the transmission line are monitored in real time on line, the fault can be rapidly and conveniently judged, the fault position can be rapidly and conveniently determined, the reliability, the safety and the stability of the operation of an electric power system are guaranteed, and the efficiency and processing speed are high.

Description

technical field [0001] The invention relates to an online monitoring system for power transmission lines. Background technique [0002] The transmission line is a necessary component of the transmission network of the power system, and its working status directly affects the operation of the power system; however, due to the changeable meteorological conditions and the complex geographical environment along the transmission line, the transmission line has been exposed to the wild for a long time and is subjected to wind, rain, snow, lightning or Freezing and other damages make the transmission line prone to failure, which seriously affects the reliability, safety and stability of the power system operation. Contents of the invention [0003] Aiming at the above problems, the present invention develops a safe, reliable, stable and fast online monitoring system for power transmission lines. [0004] Technical means of the present invention is as follows: [0005] An electr...

AI Technical Summary

Problems solved by technology

[0002] The transmission line is a necessary component of the transmission network of the power system, and its working status directly affects the operation of the power system; however, due to the changeable meteorological conditions and the complex geographical environment along the transmission line, the transmission line has been exposed to the wild for a long time and is subjected to wind, rain, snow, lightning or Freezing and other damages make the transmission line prone to failure, which seriously affects the reliability, safety and stability of the power system operation.

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