Layered expansion power grid fault information processing system and method based on multiple AGENTs

Abstract

The invention discloses a layered expansion power grid fault information processing system based on multiple AGENTs. The system comprises a multi-Agent system. The multi-Agent system is in communication with an information protection system of power grid differential-current out-of-limit boundary equipment, fault recording system and an SCADA system; the multi-Agent system performs data normalization processing through acquisition of various power grid differential partition boundary point currents, and performs a differential current calculation taking equipment as a minimum division unit; and, when an equipment unit is monitored to be in a differential current out-of-limit state, a related fault analysis and diagnosis program is started, and judgments of a fault area and a fault point position are made. The device is advantageous in that, through an introduction of a dimension of a differential current of an area fault current, and through information fusion of different information source from different substations, functions of the system can be expanded upward to a judgment of a cross-area cascading fault and can be refined downward to a judgment of a fault property and accurate distance measurement of a fault point on a line.

Description

technical field [0001] The invention relates to a power grid fault information fusion processing system, in particular to a multi-AGENT-based layered expansion power grid fault information processing system and method. technical background [0002] Protection engineers often need to extract, analyze and synthesize data from a series of monitoring equipment, with the purpose of diagnosing power system faults or disturbances, and determining whether the relevant protection actions are correct. Through this analysis, confirm the protection malfunction and faulty equipment, and at the same time complete the action analysis of the relevant automatic devices and the action value check of the protection setting value. [0003] A series of effective protection analysis tools have been developed using data from fault recorders (DFR) for fault or disturbance diagnosis tasks, such as alarm interpretation systems, fault classification and protection behavior evaluation systems. Althoug...

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Problems solved by technology

[0008] But the disadvantage of this is that the protection analysis is not intuitive enough, and sometimes it is difficult to analyze because of the sequence of protection actions, especially for the judgment of complex faults.

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