Power distribution network fault positioning system and method

Abstract

The invention provides a power distribution network fault positioning system and method, and relates to the technical field of power distribution network fault positioning; the power distribution network fault positioning system comprises a multi-source data acquisition terminal, a collection terminal and a master station system, wherein the multi-source data acquisition terminal acquires electrical parameters of a power distribution network to be monitored and sends the electrical parameters to the collection terminal; the collection terminal determines integrated electrical parameters basedon the received electrical parameters and sends the integrated electrical parameters to the master station system so that the master station system determines fault information of the power distribution network to be monitored; the multi-source data acquisition terminal comprises at least one of the following: a fault indicator, a power distribution switch monitoring terminal, an intelligent lightning arrester, a smart switch, and a metering automation device; the master station system comprises at least an expert system, a geographic information system, a weather system, and a patrol information system. According to the fault positioning system, the master station system is used for comprehensively judging integrated electrical parameters, so that the accuracy of fault information is ensured, and the technical problems of misjudgment and misjudgment of the existing fault positioning method of the distribution network are relieved.

Description

technical field [0001] The invention relates to the technical field of distribution network fault location, in particular to a distribution network fault location system and method. Background technique [0002] Distribution lines are directly related to users, and their operation stability and power supply quality not only directly reflect the economic benefits of electric power enterprises, but also have immeasurable social benefits. Distribution lines have the problems of wide distribution, complex wiring, and too long power supply radius, and their power consumption and operating environment are complex. Weather, equipment, human factors, etc. may cause distribution line failures and cause power outages. It has a great impact on the safety and reliability of operation. [0003] At present, the power distribution lines are mainly overhead lines. The overhead lines are long and the coverage of automation terminals is low. Single-phase ground faults often occur and the fau...

AI Technical Summary

Problems solved by technology

Distribution lines have the problems of wide distribution, complex wiring, and too long power supply radius, and their power consumption and operating environment are complex. Weather, equipment, human factors, etc. may cause distribution line failures and cause power outages. The safety and reliability of operation have a great impact

[0003] At present, the power distribution lines are mainly overhead lines, the overhead lines are long, and the coverage of automation terminals is low. Single-phase ground faults often occur and the faults often occur on branch lines.

The current distribution line mainly relies on fault indicators for fault location, but the effect is not ideal, and the probability of misjudgment and missed judgment is high, which cannot meet the requirements of practical applications. Personnel bring great difficulties in fault diagnosis and operation and maintenance

[0004] In summary, the existing distribution network fault location methods have technical problems of misjudgment and missed judgment.

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