Power distribution network online fault positioning system and method

Abstract

The embodiment of the invention discloses a power distribution network online fault positioning system and method, and the system comprises an on-site regulation and control unit which is used for being installed on each node and each power distribution branch of a power distribution network, and achieving the real-time data collection and adjustment and control of the power distribution network;a positioning navigation unit which is used for distinguishing names of the on-site regulation and control units; an information processing system which is used for carrying out real-time processing on the acquired data of the on-site regulation and control units; a wireless communication unit which is used for carrying out data interaction on the information processing system and the on-site regulation and control units; a virtual tree diagram creation unit which is used for concretizing the on-site regulation and control units according to a graphic representation form and generating a virtual tree diagram in a father-son hierarchical structure; and a logic link establishing unit which is used for establishing a logic association relationship among the on-site regulation and control units of different hierarchical structures and automatically positioning the fault position of the power distribution network on line. According to the scheme, fault positioning operation is automaticallycarried out through logic relation analysis, and thus power distribution network fault positioning can be conveniently, rapidly and timely carried out.

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, isolating switches, reactive power compensators and some auxiliary facilities, etc., and plays 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, so ther...

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Problems solved by technology

[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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