A Fault Location Method Based on Unit System Distribution Network

A technology for fault location and distribution network, applied in the direction of fault location, fault detection according to conductor type, information technology support system, etc. Accurately locate problems such as faults, so as to improve the efficiency of accident handling, reduce the amount of calculation, and accurately locate faults

Active Publication Date: 2018-11-30
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional distribution network fault location method is basically applied to the "hand-in-hand" single grid, which is difficult to meet the characteristics of unitized distribution network, multi-ring network, and multiple configurations, and cannot accurately locate faults. This requires the establishment of a A Fault Location Method for "Unit System" Power Supply Architecture

Method used

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  • A Fault Location Method Based on Unit System Distribution Network
  • A Fault Location Method Based on Unit System Distribution Network
  • A Fault Location Method Based on Unit System Distribution Network

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Embodiment Construction

[0016] First of all, some nouns or terms that appear during the description of the embodiments of the present invention apply to the following explanations:

[0017] SK, refers to the power supply switch, which is connected to the substation and powered by the output of the substation.

[0018] UK refers to the user switch, which is connected to the user side load or voltage changer.

[0019] LK refers to the contact switch, which is connected to other switching stations or interconnection switches between switching stations.

[0020] BK refers to the busbar switch, which is a section switch of the busbar inside a switch station.

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, n...

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Abstract

The invention discloses a fault positioning method based on a unit-system power distribution network, for realizing the problem of positioning faults under a unit-system power supply mode. The employed technical scheme is as follows: when t is detected that overcurrent or current abnormities occur in a logic unit, through communication analysis of a logic unit connected with the logic unit, fault points are automatically identified and positioned. According to the invention, when it is detected that the overcurrent or the current abnormities exist in the logic unit, through communication analysis of the logic unit connected with the logic unit, the fault points are automatically identified and positioned, such that the fault points of the unit-system power distribution network can be effectively positioned, during fault processing, a dispatcher only needs to pay attention to wiring and loads in a unit and does not have to pay too much attention to other information besides a power supply unit, the accident processing efficiency is greatly improved, and the problem of lack of a method for positioning faults of a power distribution network of a unit-system power supply structure at present in the prior art is effectively solved.

Description

technical field [0001] The invention relates to a fault location method for a distribution network, in particular to a fault location method for a distribution network based on a unit system, and belongs to the field of power systems. Background technique [0002] Unit system power supply is to divide the power supply area into several distribution network units as the smallest logical unit of distribution network operation management. Through unit system planning, the distribution network is divided into multiple power supply partitions. Based on the evaluation and analysis of the status quo of the distribution network, According to the differentiated planning standards of the power supply area, determine the target grid connection mode of the medium-voltage distribution network, scientifically divide each power supply area into several power supply logic units, and use the power supply logic unit as the medium-voltage distribution network planning, project management, and u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCG01R31/086Y04S10/52
Inventor 韩冰赵家庆殷伟霍雪松韩韬孙海涛葛文林吴博文钱科军杨洪赵奇余瑜
Owner NARI TECH CO LTD
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