A distribution network online fault location system and method
A technology for fault location and distribution network, which is applied in the direction of fault location, information technology support system, fault detection according to conductor type, etc. It can solve the problems that the control relationship of distribution network cannot be determined and the safety level of distribution network is low, so as to achieve convenience Fast and timely fault location and the effect of power failure protection
Active Publication Date: 2020-09-04
GUANGDONG POWER GRID CO LTD +1
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[0005] Therefore, the embodiment of the present invention provides an online fault location system and method for a distribution network to solve the problem that the control relationship of the distribution network cannot be determined in the prior art, so it can only be determined based on the operation of a single distribution network safety monitoring device. One-sided judgment of the fault location leads to a low safety level of the distribution network, making it impossible to quickly and timely online fault location
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[0042] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] Such as figure 1 As shown, the present invention provides an online fault location system for distribution network. In this embodiment, the on-site monitoring system installed on the distribution network is represented graphically according to the logical relationship, and the data changes and abnormal data are displayed synchronously with the on-site monitoring system, and Automatically ...
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The embodiment of the present invention discloses an online fault location system and method for a distribution network, including an on-site control unit installed on each node and distribution branch of the distribution network to realize real-time data of the distribution network Acquisition and adjustment management and control; the positioning navigation unit is used to distinguish the name of the on-site control unit; the information processing system is used to process the collected data of the on-site control unit in real time; the wireless communication unit is used to exchange data between the information processing system and the on-site control unit; The virtual dendrogram creation unit is used to visualize the on-site control unit according to the graphical representation and generate a virtual dendrogram with a parent-child hierarchy; the logical link establishment unit is used to establish the logical relationship between the on-site control units of different hierarchies, and Automatically locate the fault location of the distribution network online; this scheme automatically performs fault location operation through logical relationship analysis, so as to realize convenient, fast and timely fault location of the distribution network.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of distribution network fault monitoring, and in particular to an online fault location system and method for a distribution network. Background technique [0002] The distribution network refers to the power network that receives electric energy from the transmission network or regional power plants, and distributes it locally through power distribution facilities or distributes it to various users step by step according to voltage. It is composed of overhead lines, cables, towers, distribution transformers, and isolating switches. , reactive power compensator and some ancillary facilities, etc., which play an important role in distributing electric energy in the power network. [0003] The distribution network has the characteristics of multiple voltage levels, complex network structure, various equipment types, multiple operating points and relatively poor security environment, s...
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IPC IPC(8): G01R31/08
CPCG01R31/086G01R31/088Y04S10/52
Inventor 莫景照陈汝棠陈胜强董信奖
Owner GUANGDONG POWER GRID CO LTD