Grid fault equipment analyzing and reasoning method based on rule tree

Abstract

The invention relates to a grid fault equipment analyzing and reasoning method based on a rule tree. The method comprises the following steps: (1) establishing the rule tree; (2) acquiring the real-time fault information of a power grid; (3) presuming one piece of equipment as fault equipment, and acquiring a rule tree thereof; (4) taking out the root node of the rule tree, pushing into a reasoning queue, and performing reasoning on the root node according to steps (5) and (6) by adopting a recursive algorithm; (5) taking one node out of the reasoning queue for serving as a parent node, and acquiring a child node set of the parent node; (6) circularly reasoning the child node set, wherein the termination condition is that one child node is a termination node or the reasoning queue is empty, wherein if the presumed fault equipment is circularly reasoned to the termination node, the presumed fault equipment is real-time fault equipment; (7) returning to the step (3). By adopting the method, the intelligence and universality of grid fault analysis and reasoning can be enhanced, automatic analysis of the fault equipment is assisted, the accident handling time is shortened, and the accident handling efficiency is increased.

Description

technical field [0001] The invention belongs to the field of power system dispatching control, and relates to a rule tree-based analysis and reasoning method for power grid fault equipment. Background technique [0002] With the expansion of the grid scale, grid accidents will inevitably occur during the operation of the grid. At the same time, the rapid economic development has higher and higher requirements for power supply reliability. How to quickly identify faulty equipment based on grid fault information when the grid fails One of the important tasks of grid dispatchers. [0003] For a long time, dispatchers mainly judge faulty equipment manually based on alarm information. The work pressure is high, the degree of intelligence is low, and misjudgments and misjudgments are prone to occur. When a power grid accident occurs, a large amount of fault information pours into the dispatch center. Facing the complex and urgent scene, it is difficult for the dispatcher to immed...

AI Technical Summary

Problems solved by technology

In recent years, with the development of power grid dispatching automation technology and the improvement of maintenance level, the power grid model has become more and more accurate, maintenance has become more timely, and fault information has become more and more complete. Based on expert systems, optimization algorithms, artificial intelligence, Petri nets, etc. After years of discussion, the fault diagnosis algorithm for power grid accidents has achieved certain results. It has been tried in dispatching centers at all levels, but its intelligence and versatility are not high, and there is still a certain distance from practicality. It is really put into operation systems are rare

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