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Intelligent power distribution network passive monitoring system

A technology of intelligent distribution network and passive monitoring, applied in the field of power grid, can solve problems such as defects, inability to apply distribution network lines, high cost, etc., and achieve the effect of reasonable design

Inactive Publication Date: 2014-08-20
ZHUHAI GENE COSMOS ELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, Europe and the United States have similar technologies for high-voltage transmission networks. For example, the Power-Donut produced by USI Company can realize intelligent online monitoring on high-voltage transmission lines. Current power supply) technology itself has defects and cannot be applied to distribution network lines
All in all, no similar technology has been produced in the field of distribution network

Method used

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  • Intelligent power distribution network passive monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A passive monitoring system for an intelligent distribution network, including an intelligent distribution network passive monitor 1, a wireless network communication unit, and an online monitoring center 3. The intelligent distribution network passive monitor 1 is connected to the wireless network communication unit, and wireless network communication The unit is connected to the online monitoring center 3. The intelligent power distribution network passive monitor 1 includes a self-taking device 5, a monitoring control unit 6 and an alarm indicating device 7. The self-taking device 5 is connected to a monitoring control unit 6, a monitoring control unit 6 is connected to the alarm indicating device 7, the wireless network communication unit includes a wireless network communication node 2 and a gateway 4, the wireless network communication node 2 is connected to the gateway 4, and the monitoring control unit 6 includes a power supply module 8, a data acquisition module 9...

Embodiment 2

[0024] The passive fault monitor of the intelligent distribution network uses self-acquisition technology, sensor acquisition technology, monitoring technology, signal processing technology, automation technology, artificial intelligence technology to measure the basic electrical parameters of the medium-voltage grid overhead lines in real time. The operation fault characteristic signal of the overhead line is collected and the fault characteristic quantity is extracted. The intelligent distribution network passive fault monitor adopts wireless multi-hop network technology to realize data transmission and realize the redundant design of communication. By analyzing and recording these data, it can find out its hidden internal factors, and establish failure models and failure modes for the future. Judgment and fault system analysis provide powerful data support. Of course, the passive monitor also collects a large amount of waveform data under normal conditions and waveform data ...

Embodiment 3

[0027] The passive monitoring system of the intelligent distribution network needs to be directly installed on the 6-35kV (mainly 10kV) distribution line to collect first-hand data when a fault occurs. The passive monitor of the intelligent distribution network can meet the harsh working environment in the field such as high and low temperature, acid rain, heavy snow, lightning strike, icing, etc.; strong anti-electromagnetic interference (EMC) ability to ensure the reliability of wireless communication; long wireless communication distance , The range is wide, and the visible communication distance of more than 20 meters should be reached, so as to ensure the return of normal recording data; the power supply method is reliable, and the long-term work is guaranteed. It has the function of real-time online recording, does not miss any characteristic fault waveform, and guarantees the synchronization of the three-phase recording data clocks of A, B, and C; has the unattended (main...

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Abstract

The invention discloses an intelligent power distribution network passive monitoring system. The system comprises an intelligent power distribution network passive monitor, a wireless network communication unit and an online monitoring center. The intelligent power distribution network passive monitor is connected with a wireless network communication node; the wireless network communication node is connected with the online monitoring center; the intelligent power distribution network passive monitor comprises a self-power-drawing apparatus, a monitoring control unit and an alarm indication apparatus; the self-power-drawing apparatus is connected with the monitoring control unit; the monitoring control unit is connected with the alarm indication apparatus; the wireless network communication unit comprises the wireless network communication node and a gateway; and the wireless network communication node is connected with the gateway. According to the invention, the system has the following advantages: the design is reasonable, the problem of a high-voltage line light-current power drawing technology is solved, and a breakthrough of power drawing (i.e., a passive monitoring technology) under the condition of currents below 10 A is made. Through network operation of heavy current generators and actual lines, the reliability of the technology is verified, and the system completely satisfies actual needs.

Description

Technical field [0001] The invention relates to the field of power grids, in particular to a passive monitoring system for an intelligent distribution network. Background technique [0002] Domestic power equipment online monitoring technology started in the 1980s. After more than 20 years of exploration, practice and development, a relatively mature live detection technology for power transmission and transformation equipment has been formed in China, such as partial discharge of transformers, GIS, and circuit breakers. , Leakage current monitoring of arrester, etc. Compared with the main grid, the technical level of the distribution network and the current situation of the grid are far behind. The main manifestations are the backward automation and weak grid. Once the distribution line fails, the fault finding time is long, and the non-faulty area is difficult to recover in time. The power supply or the completion of the transfer of power supply seriously affects the reliabili...

Claims

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Application Information

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IPC IPC(8): H02J13/00G01R31/08
Inventor 肖高林
Owner ZHUHAI GENE COSMOS ELECTRIC TECH
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