Auxiliary decision making method for power grid dispatching fault processing

Abstract

The invention discloses an auxiliary decision making method for power grid dispatching fault processing. The method comprises the following steps that: fault diagnosis: constructing a regional power grid topological graph, establishing a power grid fault information association table for storing an incidence relationship between the occurrence of one falut and corresponding fault information; screening characteristic information corresponding to OPEN3000 when a fault happens, screening a target element fault and a corresponding fault caused by the target element fault, calculating a fit degreeof the characteristic information and the corresponding fault, and converting the fit degree into a first probability for each fault to happen, wherein the characteristic information comprises a fault message, photon information, telemetering changes and remote signalling deflection when the fault happens; transferring the data of a fault wave recording device when the fault happens, utilizing awavelet analysis method to carry out waveform analysis, and combining with a fault analysis result obtained by a wave recording report to calculate a second probability for each fault to happen; and carrying out weighting on the first probability for each fault to happen and the second probability for each fault to happen, and according to a probability highest principle, determining a fault rangeand a fault type, and forming a fault processing scheme according to the fault range and the fault type.

Description

technical field [0001] The invention relates to the field of power grid operation, in particular to an auxiliary decision-making method for power grid scheduling fault processing. Background technique [0002] At present, the power grid dispatching automation integration system (OPEN3000) can only display alarm and abnormal information, without functions such as signal analysis, fault judgment, and auxiliary decision-making. The information submitted to the dispatcher in the event of a fault is often some listed data and simple prompts. There is no comprehensive analysis and systematic judgment on the overall relevant alarm data, and there is a lack of decision support for power grid dispatching. When a power grid fault occurs, the system can transmit a large number of accident messages in time, but it cannot analyze and judge the fault itself, and cannot directly prompt the fault situation from the system. Fault diagnosis and fault treatment rely entirely on manual analysi...

AI Technical Summary

Problems solved by technology

When a power grid fault occurs, the system can transmit a large number of accident messages in a timely manner, but it cannot analyze and judge the fault itself, and cannot directly prompt the fault situation from the system

Fault diagnosis and fault treatment rely entirely on manual analysis and processing, relying largely on the operation experience of dispatchers, lack of auxiliary decision-making systems for accident handling, and cannot provide direct and effective accident handling decision-making solutions, which ultimately leads to the efficiency of power dispatching and grid fault handling. decrease in accuracy

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