Protection equipment state early warning method based on analytic hierarchy process
An analytic hierarchy process, a technology for protecting equipment, applied in the directions of instruments, data processing applications, resources, etc., can solve the problems of data collection and early warning, no component-level state index modeling of relay protection equipment, insufficient depth, etc., and achieve simple and clear results. , easy to understand and master, the effect of simple calculation process
Inactive Publication Date: 2020-05-19
GUIZHOU POWER GRID CO LTD
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Problems solved by technology
[0003] At present, there are few researches on the application of component-level status monitoring and early warning, remote operation and maintenance, and comprehensive fault analysis of relay protection equipment. There are related researches on power grids in some areas, but they are not deep enough, and there is no component-level status index of relay protection equipment. Modeling, data collection and early warning capabilities
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[0044] A method for early warning of protection equipment status based on analytic hierarchy process, comprising the following steps,
[0045] Step 1: Establish a hierarchical analysis structure model, collect the comprehensive fault information of substation relay protection that can be obtained, analyze the protection status of relay protection equipment and its components, and sort out the various factors that affect the relay protection equipment and its components in the system. Determine the causal relationship between various factors, divide the risk warning levels of various factors that affect equipment abnormalities, and establish a multi-level hierarchical structure model. Such as figure 1 As shown, the hierarchical analysis structure model is usually divided into three major layers: from top to bottom, there are target layer, criterion layer and program layer.
[0046] Target layer: The present invention aims to analyze the abnormality of the protection state to g...
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The invention discloses a protection equipment state early warning method based on an analytic hierarchy process. The method comprises the following steps: 1, building an analytic hierarchy structuremodel; 2, constructing a judgment matrix; 3, determining the sequence of layers, and determining feature vectors by using a root method; 4, checking the consistency of sorting, and checking the consistency of sorting through calculation; and 5, determining the relative importance of each element so as to select an optimal scheme to provide a scientific decision basis. The fuzzy analytic hierarchyprocess (FAHP) theory is used for carrying out state abnormity early warning on the relay protection equipment, and the method well solves the problems of fuzziness and difficulty in quantification, and is suitable for solving various nondeterminacy problems. Through the method, real-time monitoring and anomaly analysis of the relay protection equipment and elements thereof are realized, and anomaly monitoring and early warning of hidden dangers of the protection device are realized.
Description
technical field [0001] The present disclosure relates to the field of relay protection of electric power systems, in particular to a method for early warning of the state of relay protection equipment by using fuzzy AHP theory. Background technique [0002] With the continuous development of smart grid, the digital and intelligent level of secondary equipment monitoring has been greatly improved, laying the foundation for the application of online monitoring and status warning of secondary equipment. At present, State Grid and China Southern Power Grid are conducting research on equipment online monitoring and condition maintenance. By building a complete, accurate and real-time information collection system in substations, the comprehensive collection and real-time sharing of power grid operation data can be realized, and various The status warning capability of a smart device. However, limited by the degree of intelligence of the equipment itself, most of the research is ...
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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/06393G06Q50/06
Inventor 邬小坤白加林牛静赵武智赵凌齐雪雯
Owner GUIZHOU POWER GRID CO LTD