Extraction method of transformer key parameters based on vector similarity

Abstract

The invention discloses a transformer key parameter extraction method based on vector similarity. The method includes the following steps that first, a transformer basic parameter system composed of a plurality of basic state quantities is constructed; second, the key parameter extraction vector of each basic state quantity is acquired; third, each key parameter extraction vector and the standard key parameter extraction vector of a transformer device are subjected to similarity coefficient calculation so that the similarity coefficient of each key parameter extraction vector can be obtained; fourth, the similarity coefficient of each key parameter extraction vector is compared with a standard similarity coefficient, and if the similarity coefficient of the key parameter extraction vector is not smaller than the standard similarity coefficient, the key parameter extraction vector is defined as the key parameters of the transformer; otherwise, the key parameter extraction vector is eliminated. The transformer key parameter extraction method is given through the vector similarity coefficient so that operating personnel can accurately master the health state of the transformer.

Description

technical field [0001] The invention relates to the field of extraction and analysis of key state parameters of transformer equipment, in particular to a method for extracting key parameters of transformers based on vector similarity. Background technique [0002] Establishing a scientific and objective evaluation index system is the premise and necessary step for establishing a correct and reasonable evaluation model. However, there are many and complex factors affecting the operation status of substation equipment, which requires the analysis of the influencing factors and their interrelationships of substation equipment. Taking the transformer as an example, from a theoretical point of view, all factors that affect the operation of the transformer and can reflect the health of the transformer should be used as evaluation indicators. But in fact, not all indicators are practical or easy to quantify and evaluate. Therefore, considering the actual situation, the current ma...

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Problems solved by technology

[0008] However, judging from the current status quo, the emergence of the above parameter systems all serve the state assessment, and the parameters of the state assessment, considering the actual business development and the focus of the advanced level, not all the basic state quantities of the transformer equipment need to be obtained. Submit and present to a higher level; in addition, the current parameter system is formed by summarizing the large and complete parameters of the transformer equipment, and most of the parameters are not sufficiently sufficient to reflect the status of the transformer equipment; from From the perspective of production management, it is not its core focus

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