Overhead line intelligent fault positioning processing system and method thereof

Abstract

The invention discloses an overhead line intelligent fault positioning processing system and a method thereof. The system mainly comprises a fault indicator, a gatherer, a voltage transformer and a monitoring management platform. An ad-hoc network is formed through the monitoring management platform, the gatherer, the voltage transformer and the fault indicator for data communication and transmission. Through a wireless ad-hoc networking technology, the use of a wireless network of a service provider is unnecessary, and restrictions of a service provider network are eliminated, such that the operation cost is saved, and data security is ensured; at the same time, faults such as single-phase grounding and the like are determined through combination with an expert analysis unit, system functions are enriched, and the accuracy in determining a single-phase grounding fault is substantially improved; and besides, the fault indicator as a major part employs an induction power-drawing technology, the problem of depletion of electric energy does not have to be considered, installation is finished in one step, replacement is unnecessary, the practicality is enhanced, at the same time, since an energy consumption problem is solved, the system provided by the invention can fully exhibit more effects, and the functions are increased.

Description

technical field [0001] The present invention relates to the technical field of overhead line fault detection and processing, and more specifically, to an intelligent fault location processing system for overhead lines that adopts wireless ad-hoc network technology and takes inductive power-taking technology as the core, and the system based on the system Location processing method. Background technique [0002] Most of the domestic overhead power distribution network below 110kV adopts a small current grounding system with neutral point grounding, ungrounding or grounding through arc suppression coils. This type of system can operate with faults for two hours after a single-phase-to-earth fault occurs. Among them, since the overhead line will be compensated by the arc suppressing coil instantly after the single-phase ground fault occurs, the characteristic value is not obvious, resulting in a very low judgment accuracy of the existing fault indicating device. [0003] Duri...

AI Technical Summary

Problems solved by technology

The detection of the 5th harmonic is relatively simple, so it is a method commonly used now, but its accuracy is not high, only about 60%

[0015] The equipment is mainly powered by batteries, and its lifespan is not long. At the same time, the power consumption must be strictly controlled. Only when the indicator judges that a fault occurs, an alarm will be issued. If there is a misjudgment, it cannot be remedied, and the flexibility is insufficient.

Images