GIS (Geographic Information System) state evaluation method based on standard state analysis and GIS state evaluation device based on standard state analysis

Abstract

The invention provides a GIS (Geographic Information System) state evaluation method based on a standard state analysis and a GIS state evaluation device based on standard state analysis. The method comprises the following steps: evaluating the health degree of GIS from the aspects of equipment aging, equipment strength and power grid strength according to key state quantity of the GIS, so as to obtain the health degree index BI of the GIS; evaluating the equipment importance degree of the GIS from the aspect of the power grid performance, the safety performance and the repair capacity according to equipment basic parameters of the GIS, so as to obtain the importance degree index MI; calculating a risk degree index in a risk matrix by virtue of mutual contact of associated models according to the index BI and the index MI; realizing priority ranking of equipment based on the importance degree and health degree two-dimension indexes according to the risk degree index and supervising an overhaul decision. The invention provides a 'standard state' analysis method aiming at GIS equipment. The method can be used for accurately learning of the equipment sate, realizing ranking of equipment basic performances from good to bad and realizing the purpose of guiding and executing decision making.

Description

technical field [0001] The invention relates to the field of state evaluation of power transmission and transformation equipment, in particular to a GIS state evaluation method and device using reference state analysis. Background technique [0002] GIS (gas insulated switchgear) refers to a closed combination of functional components such as circuit breakers, disconnectors, fast earthing switches, current transformers, voltage transformers, lightning arresters, busbars, bushings, etc. in a grounded metal casing and uses SF6 as the Electrical installations with insulating media. [0003] For a long time, the research on the condition-based maintenance of power equipment in my country has mainly focused on the research on the status evaluation of power transformers, and the research on GIS equipment has lagged behind obviously. Evaluate research. And the research is mainly aimed at proposing corresponding online detection methods for the status of each part of GIS equipment....

AI Technical Summary

Problems solved by technology

[0004] In view of the unsatisfactory situation of the current GIS state evaluation effect, the present invention proposes the equipment "benchmark" analysis, on the basis of the equipment state evaluation guideline, through the selection of feature quantities, feature quantity analysis, establishment of equipment aging models, equipment Intensity model, power grid strength model, and comprehensive equipment aging, equipment strength, and power grid strength to evaluate the health of equipment to solve the status of the equipment, whether it can operate normally, and how high the possible failure rate is. In the absence of new on-site experiments or test data, it can also realize the preliminary analysis of the status of the equipment, realize the order of the basic performance of the equipment from good to bad, and guide the purpose of operation and maintenance decision-making

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