A single-phase-to-ground fault location method based on distribution network data processing

Abstract

The invention discloses a single phase grounding fault positioning method based on power distribution network data processing, comprising: S01) obtaining the mass real-time data of the power distribution network through a power distribution terminal, a fault indication device and an intelligent power meter; S02) creating a Storm-cluster-based power distribution network's real time flow data analyzing platform; S03) designing a flow data processing topological structure integrating a plurality of single phase grounding fault positioning technologies; and S04) according to the determining of the different single phase grounding fault positioning technologies, outputting and storing the result. The single phase grounding fault positioning method proposed by the invention solves the power network distribution's single phase grounding fault positioning problem, and is suitable for grounding fault positioning of different grounding systems and different groundings.

Description

technical field [0001] The invention relates to the technical field of power distribution, in particular to a single-phase ground fault location method based on distribution network data processing. Background technique [0002] Most of the grounding methods of my country's distribution network are non-effective grounding. When a single-phase grounding fault occurs, the grounding current is very small and can continue to run for 1-2 hours. outage. [0003] The current solutions to single-phase-to-ground faults in distribution networks include the externally applied signal method and the fault signal method. The externally applied signal method amplifies the fault characteristics by injecting external signals, which are divided into strong injection method and weak injection method; the fault signal method directly extracts the characteristic information of line voltage and current to judge whether it is grounded, which is divided into fault steady state signal method and fau...

AI Technical Summary

Problems solved by technology

[0004] There are many branch lines in the distribution network, the operation mode is variable, and the characteristics of the ground fault are not obvious. The existing single technology has certain limitations, and none of them can completely solve the single-phase ground fault location.

With the continuous improvement of systems such as electricity consumption information collection and distribution automation, the data generated by the distribution network gradually presents the characteristics of big data such as massive volume, high concurrency, complex data structure, and high calculation frequency.

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