Power distribution network fault cooperative processing device

Abstract

The invention discloses a power distribution network fault cooperative processing device which comprises a high-precision online monitoring device. The high-precision online monitoring device is in communication connection with a feeder terminal, and the feeder terminal is in communication connection with a power distribution monitoring platform. Data fusion is carried out on a fault indicator and a feeder terminal in the high-precision online monitoring device, and regional linkage is completed. The line fault positioning and isolating functions are improved, and particularly, the accuracy of single-phase earth fault research and judgment can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of distribution networks, and in particular relates to a fault cooperative processing device for distribution networks. Background technique [0002] my country's distribution automation based on GOOSE technology was first applied in 2013. This technology does not require the participation of the distribution network master station. Restoration of power supply in non-faulty areas. The distribution automation terminal based on GOOSE technology is mainly composed of unit-type power distribution terminals and regional-type power distribution terminals. These two types of power distribution terminals are only divided in a logical sense, and there is no difference in the hardware platform. Generally, power distribution terminals that are easy to maintain in the installation site are selected to complete the functions of regional power distribution terminals. Among them, the unit-type power distribution terminal ...

AI Technical Summary

Problems solved by technology

[0003] The power distribution automation solution based on GOOSE technology can realize the linkage between power distribution terminals, which needs to be realized through optical fiber communication. It is suitable for economically developed areas with a wide coverage of optical fibers. For areas where optical fibers cannot reach, the cost of laying optical fibers alone is too high, so Not eligible for full promotion

At the same time, this solution has a great effect in fault isolation and restoration of non-faulty sections, but it does not link with the fault indicator of the overhead line, and cannot realize the precise fault location of the overhead line

[0004] The power distribution automation solution based on GOOSE technology can realize the linkage between power distribution terminals, which needs to be realized through optical fiber communication. It is suitable for economically developed areas with a wide coverage of optical fibers. For areas where optical fibers cannot reach, the cost of laying optical fibers alone is too high, so Does not meet the conditions for full promotion;

[0005] Without linkage with the fault indicator of the overhead line, it is impossible to accurately locate the fault of the overhead line

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