Power distribution network fault studying and judging method and system

A power grid fault and fault technology, which is applied to the fault location, detects faults according to the conductor type, and measures electricity. It can solve problems such as unclear fault types and other problems, and achieve timely elimination, easy command and repair, and reduced workload. Effect

Active Publication Date: 2014-07-09
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the fault type obtained by the existing distribution network fault research and judgment method and the research and judgment

Method used

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  • Power distribution network fault studying and judging method and system
  • Power distribution network fault studying and judging method and system
  • Power distribution network fault studying and judging method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] see figure 1 As shown, a method for researching and judging a distribution network fault as an embodiment of the present invention specifically includes the following steps:

[0056] S01: Determine whether the failure of the repair report is caused by the user's arrears, if so, determine that the failure is caused by the user's arrears, and terminate the research and judgment process; if not, go to step S02.

[0057] S02: Find the user electric energy meter corresponding to the user who reported the fault for repair, call and measure the voltage and current on the electric energy meter of the user, if there is voltage and current on the electric energy meter of the user, it is determined that the user has falsely reported the fault, and the research and judgment process is terminated; If there is voltage and no current on the electric energy meter of the user, it is determined that the internal line of the user is faulty, and the judgment process is terminated; if there...

Embodiment 2

[0063] As a method for researching and judging a distribution network fault according to an embodiment of the present invention, on the basis of the above-mentioned embodiment 1, it also includes generating a known fault for the same low-voltage line fault and / or the same transformer fault after the research and judgment is completed, and generating a Steps to report back to emergency dispatch staff as the same outage event.

[0064] The method for researching and judging a distribution grid fault in this embodiment avoids repeatedly dispatching emergency repair personnel for the same low-voltage line fault and / or the same transformer fault, and saves emergency repair resources.

[0065] As a specific implementation method, the emergency repair dispatching staff counts the 95598 work order information caused by the same power outage event, associates the affected 95598 work order with the power outage event, and no longer dispatches work orders, reducing invalid dispatching , ...

Embodiment 3

[0067] As an embodiment of the present invention, a method for researching and judging a fault in a power distribution network, on the basis of the above-mentioned embodiment 1 or 2, further includes:

[0068] Steps to mark the fault affected area on the distribution grid GIS system.

[0069] Steps for displaying emergency repair site information on the distribution grid GIS system.

[0070] A method for researching and judging faults in the distribution network in this embodiment intuitively displays the scope of the fault; at the same time, according to the emergency repair site information displayed on the GIS system of the distribution network, it is convenient for emergency repair commanders to understand the details of the fault site and facilitate command rush repairs.

[0071] As a specific implementation method, the pictures and videos of the emergency repair site can be sent back in real time according to the GIS system of the distribution grid, which greatly facili...

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Abstract

The invention provides a power distribution network fault studying and judging method and system. By analyzing the conditions of voltage and current of electric energy meters and transformers of users in a detailing mode, the type of a fault is determined, the affecting range of the fault is determined, the workload for emergent repairing workers after the emergent repairing workers arrive at the site is lightened, the emergent repairing progress is accelerated, and the power fault is removed in time. Meanwhile, before study and judgment begin, whether the fault is caused by arrearage of users is judged, if yes, the judgment is that the fault is caused by arrearage of users, and the study and judgment process is stopped. Therefore, the workload of the study and judgment system is lightened, and the study and judgment time is shortened.

Description

technical field [0001] The invention relates to the technical field of power grid management, and in particular, the invention relates to a method and a system for researching and judging faults of distribution power grids. Background technique [0002] For a long time, when a fault occurs in the power distribution network, before the repair personnel enter the scene after the fault is reported, the fault information can only rely on the user's description, and cannot accurately locate the fault source, obtain relevant fault equipment information, analyze the fault type and the scope of influence Wait. For example, the existing electric power users use the power supply company's 95598 (State Grid Power Customer Service System) repair call to report for fault repairs, and the 95598 business acceptance personnel accept the repair reports, record the user's repair information, and forward the user's repair information to the 95598 remote workstation, 95598 remote workstation T...

Claims

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Application Information

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IPC IPC(8): H02H7/28G01R31/00G01R31/02
CPCG01R31/00G01R31/086
Inventor 公伟勇崔潇贾旭徐鹏郭英雷
Owner STATE GRID SHANDONG ELECTRIC POWER
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