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Method and system for rapidly responding to power-down faults of low-voltage power grid user lines

A technology for user lines and low-voltage power grids. It is applied in the direction of fault location and fault detection according to conductor type. It can solve the problems of large volume, high cost, and inability to achieve proactive repairs, and achieve the effect of improving service levels and improving operation and maintenance efficiency.

Active Publication Date: 2017-09-12
湖南华烨智能通信技术股份有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fact that the power-off fault in the current fault report information can only be located in the section or branch line with corresponding power-down detection equipment in the wide-spreading line; and the equipment for power-down detection of the section or branch line is large in size and high in cost. Factors are not suitable for household electric energy meters, so that the existing individual electric energy meters cannot be repaired proactively when they are powered off, which often brings great inconvenience to people's lives

Method used

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  • Method and system for rapidly responding to power-down faults of low-voltage power grid user lines
  • Method and system for rapidly responding to power-down faults of low-voltage power grid user lines

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Embodiment 1

[0025] see figure 1 , this embodiment discloses a method for quickly responding to a low-voltage power grid user line power failure fault, including:

[0026] After the energy meter is powered normally, use the built-in energy meter communication module to send the energy meter information to the concentrator in the station area to generate the topology map of the station area; after the concentrator receives the energy meter information, it sends the energy meter information together with its own attribute information to the master station to generate an area topology map.

[0027] After that, the energy meter communication module detects in real time or obtains from the energy meter whether there is a power-off fault. After detecting the fault, it uses the power supply of the backup power supply to generate power-off fault information and transmits it through wired (power line carrier, RS485, etc.) or wireless Send the power failure fault information to the concentrator by ...

Embodiment 2

[0036] see figure 2 , corresponding to the above-mentioned method embodiment, this embodiment discloses a low-voltage power grid user line power-down fault rapid response system, including:

[0037] The electric energy meter is used to send the electric energy meter information to the concentrator of the station area with the built-in electric energy meter communication module to generate the topology map of the station area after the normal power supply; the electric energy meter communication module is also used for real-time detection or acquisition from the electric energy meter. When a power failure occurs, after the failure is detected, use the power supply of the backup power supply to generate power failure fault information and send the power failure failure information to the concentrator through wired or wireless means; wherein, the backup power supply only supplies power to the communication module of the electric energy meter, and The energy storage of the backup...

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Abstract

The invention relates to the field of power distribution automation, discloses a method and a system for rapidly responding to power-down faults of low-voltage power grid user lines and aims to rapidly respond to the power-down faults of the low-voltage power grid user lines, improve operation and maintenance efficiency and improve service level. The method comprises the following steps: detecting power-down faults in real time or obtaining power-down faults from an electric energy meter via an electric energy meter communication module, generating power-down fault information by using power supply of a spare power supply and sending the power-down fault information to a concentrator through a wired manner or a wireless manner after the faults are detected; sending the power-down fault information and self attribute information to a master station via the concentrator; analyzing the power-down fault information forwarded by the corresponding concentrator via the master station, starting remote meter reading of a target electric energy meter through a wired manner or a wireless manner according to analysis results, determining that the power-down fault information is valid if the meter cannot be read normally, and starting corresponding rush-repairing processes.

Description

technical field [0001] The invention relates to the field of power distribution automation, in particular to a method and system for quickly responding to power failure faults of user lines of low-voltage power grids. Background technique [0002] Power failure is one of the more common faults in the power grid system. With the advancement of smart grid construction, for power failures that occur on the main or branch lines of the distribution network, the distribution network automation and electric energy online monitoring system can be timely and accurately However, when a power failure occurs on the user line of the low-voltage power grid, the relevant fault information can only be known when the user reports for repair, resulting in a long cycle for maintenance personnel to grasp the fault information, which often causes user complaints. At present, the smart energy meters used in some newly built communities or renovated communities have event reporting functions. Emer...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/086
Inventor 封浩谭湘平
Owner 湖南华烨智能通信技术股份有限公司
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