Power distribution fault studying and judging method based on multisystem collaboration

Abstract

The invention relates to a power distribution fault studying and judging method based on multisystem collaboration. The method comprises the following steps: a power distribution transformer object is positioned; whether the scheduled power outage is performed is judged; the known fault power outage is judged; a power outage range is defined by adopting an asynchronous interrogation mode; and a low-voltage line fault is judged. According to the studying and judging method, more comprehensive analysis of the operation state of a power distribution network is facilitated, detailed basis is provided for fault processing and standardized first-aid repair work of a power supply system, and accurate power supply device positioning and fault range defining functions are provided for low-voltage user repair reporting processing. Meanwhile, the acquired reading inquiring function of real-time electricity-using readings of intelligent meter users and the attributed power distribution transformers can be basically realized by the studying and judging method so that powerful auxiliary means are provided for real-time and accurate definition of repair reporting accident range for repair reporting users.

Description

technical field [0001] The invention belongs to the field of power system automation, in particular to the field of power distribution information technology. Background technique [0002] At present, the research on real-time fault analysis and judgment of distribution network mainly includes two levels: automatic discovery and location of medium voltage faults, and automatic diagnosis of low voltage repair faults. [0003] With the current pace of smart grid construction, the coverage of distribution automation systems is increasing day by day. People mainly realize the automatic discovery and location of medium-voltage faults through the functions of the feeder automation system. Based on the accurate topology model of the medium-voltage distribution network and real-time overcurrent, overload and other protection signals, the automation system analyzes and isolates the fault range in real time, records Corresponding blackout influence range; however, on the other hand, ...

AI Technical Summary

Problems solved by technology

However, due to the fact that there is still a lot of room for improvement in the level of informatization and automation construction of my country's power supply system, the low-voltage model information of the distribution network needs to be further improved.

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