A Method for Evaluating the Deterioration State of Transformer Insulating Oil

Abstract

The invention relates to a method for evaluating the deterioration state of transformer insulating oil, the steps are as follows: firstly, construct the data sets of transformer insulating oil feature class, insulating paper feature class, gas feature class, temperature feature class, capacitance feature class, partial discharge feature class and Calculate the corresponding probability value; then, calculate the average value of the characteristic values ​​of oil, paper, gas, temperature, capacitance, and partial discharge that reflect the deterioration state of the transformer insulating oil; then, construct the evaluation function of the deterioration state of the transformer insulating oil; finally, carry out the transformer Evaluation of the deterioration state of the insulating oil; the present invention can evaluate the deterioration state of the transformer insulating oil, reflecting the uncertainty of the characteristic value of the deterioration state of the transformer insulating oil, providing theoretical guidance for the evaluation of the deterioration state of the transformer insulating oil, and providing necessary information for the operation and maintenance of the distribution network. technical support.

Description

technical field [0001] The invention relates to the technical field of power systems and automation thereof, in particular to a method for evaluating the degradation state of transformer insulating oil. Background technique [0002] Subsequent maintenance and regular planned maintenance of traditional distribution network main equipment often require a lot of manpower and material resources, and the cost performance of maintenance is not high. With the improvement of equipment automation, the failure mode of time-related equipment only accounts for 6% of all failure modes of equipment, so the time-based periodic maintenance strategy is only effective for 6% of equipment failure modes. Based on regular maintenance combined with experience to determine the maintenance method to extend or shorten the maintenance cycle, and achieved certain results. [0003] With the increasing number of power equipment, the relationship between equipment is becoming more and more complex, the ...

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Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for evaluating the deterioration state of transformer insulating oil. Aiming at how to deal with the big data problems involving many types, large quantities and complex relationships involved in the evaluation of the deterioration state of transformer insulating oil, in establishing Based on the large database, the principle of data clustering is used to process and analyze the big data; for the parameters of randomness and fuzzy uncertainty involved in the evaluation of the deterioration state of transformer insulating oil, the theory of probabilistic fuzzy sets is used for processing and analysis

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