Power distribution network line fault area indication system and control method thereof

Abstract

The invention relates to a power distribution network line fault area indication system and a control method thereof. The system comprises a centralized control unit, an acquisition unit and an optical fiber ring network communication network. The plurality of groups of acquisition units are distributed and installed at preset positions of a power distribution network line so as to acquire electrical quantities at the positions; and the centralized control unit is in communication connection with the plurality of groups of acquisition units through an optical fiber ring network communication network, and is used for receiving the electrical quantity acquired by the acquisition units and determining and indicating a fault area according to the electrical quantity. Data communication is realized by adopting an optical fiber ring network communication network, fault area positioning is performed on a complex line of a distribution network, switching of various operation modes of the line of the distribution network is adapted, and the acquisition unit does not need to follow switch configuration and is more flexible; the over-current direction comparison criterion is adopted, so that the data synchronization requirement is low; therefore, the power failure time can be effectively reduced, and the workload of operation and maintenance personnel is reduced.

Description

technical field [0001] The invention relates to the technical field of distribution network automation, in particular to a distribution network line fault area indication system and a control method thereof. Background technique [0002] At present, the distribution network master station method is mainly used for the fault area indication of the distribution network line. This method is based on the data transmission of the public network or private network, relying on the DTU\FTU intelligent terminal in the area, and the information processing is performed by the distribution network master station. Realize the fault area indication function. For the scenario where there is only one line (with multiple branches) in the distribution network area, the investment cost is high, and it is currently not feasible to adopt it. However, traditional fault indicators require manual on-site observation, which brings inconvenience to the operation and maintenance work. Neither of the...

AI Technical Summary

Problems solved by technology

How to realize the convenient, fast and effective fault area indication of simple distribution network, improve the reliability of power supply, maximize the protection of power supply equipment, shorten the power outage time, and overcome the limitations of traditional fault area indication have become the current concerns of the power supply department. However, Nowadays, there is no economical, convenient, fast and effective research result, and there are no relevant reports

Images