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Power distribution network fault diagnosis method utilizing historical fault data

A technology of historical fault data and distribution network faults, which is applied in data processing applications, instruments, calculations, etc., and can solve the problem that the diagnosis method cannot give the cause of the fault, etc.

Inactive Publication Date: 2014-06-18
STATE GRID CORP OF CHINA +3
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  • Claims
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Problems solved by technology

The current diagnosis method cannot give the specific cause of the fault, mostly the diagnosis of the fault type and fault location

Method used

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  • Power distribution network fault diagnosis method utilizing historical fault data
  • Power distribution network fault diagnosis method utilizing historical fault data
  • Power distribution network fault diagnosis method utilizing historical fault data

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Experimental program
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Embodiment Construction

[0035] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0036] A method for diagnosing distribution network faults using historical fault data of the present invention comprises the following steps,

[0037] Step S01: Establish a fault information database from distribution network fault emergency repair records, and determine the fault attributes contained in the fault information database;

[0038] Step S02: standardize the data format of the fault attribute, and discretize the fault attribute data in the fault information database;

[0039] Step S03: Mining the strong association rules contained in the fault attribute data in the fault information database by using the association rule mining method;

[0040]Step S04: According to the actual situation of the fault, and according to the strong association rules excavated above, a diagnosis result is given for the fault situation of the dist...

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Abstract

The invention relates to a power distribution network fault diagnosis method utilizing historical fault data. The method comprises the following steps: firstly, a fault information database is established from power distribution network fault rescue records, fault attributes contained in the fault information database are determined; then, the data format of the fault attributes is made to conform to the standard, and fault attribute data in the fault information database are discretized; an association rule mining method is used for mining a strong association rule contained in the fault attribute data in the fault information database; finally, according to actual conditions of a fault and the mined strong association rule, a diagnosis result of the power distribution network fault is obtained. The power distribution network fault diagnosis method utilizing the historical fault data is beneficial for improving safe operation of a power distribution network, and is high in reliability; besides, the power distribution network fault diagnosis method has the advantages of being wide in application rage, flexible to apply, and capable of being operated off line, and being influenced by the distribution network automation degree to a low extent, and the like, thereby providing a good basis for power distribution network fault diagnosis and state evaluation.

Description

technical field [0001] The present invention relates to a fault diagnosis method for distribution network using historical fault data, in particular to a fault diagnosis method for a distribution automation system that cannot provide accurate monitoring results due to hardware, software or communication faults when a fault occurs in the distribution network, especially It is a distribution network fault diagnosis method using historical fault data. Background technique [0002] Compared with the transmission network, the structure of the distribution network is complex. At present, the fault diagnosis technology of the distribution network is mainly based on the operation status information of the power grid provided by automation systems such as the power collection system, the distribution transformer monitoring system, and the data collection and monitoring control system. These automation systems mainly include hardware parts, software parts and communication parts. When...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
CPCY04S10/50
Inventor 李天友陈青王庆华陈金祥陈敏维
Owner STATE GRID CORP OF CHINA
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