US 2014/0372052 A1 · METHOD AND DEVICE FOR DETERMINING THE DEFECT TYPE OF A PARTIAL DISCHARGE

Abstract

The present invention relates to a method and device for determining the defect type of a partial discharge, the method comprising the steps of: forming virtual spaces corresponding to n parameters generated on the basis of defect types that cause a partial discharge; arranging defect type models in the virtual spaces based on the parameter values of the n parameters; extracting parameter values of the n parameters based on a partial discharge event; arranging a partial discharge model in the virtual space based on the parameter values; calculating the distance value between the defect type models and the partial discharge model based on the position information of the defect type models and the partial discharge model; calculating the probability of the defect types based on the calculated distance value; and determining the defect type based on the probability of the defect types for the partial discharge signal event.

Claims18

Dependent claims

A method for determining a type of defect in partial discharge, comprising:

forming a virtual space corresponding to n parameters generated based on defect types causing partial discharge, and arranging defect type models in the virtual space by combining parameter values of the n parameters for each of defect types;
extracting parameter values corresponding to the n parameters based on a generated partial discharge signal when a partial discharge signal event occurs, combining the parameter values, and then arranging a partial discharge model in the virtual space;
comparing pieces of location information of the defect type models with location information of the partial discharge model and then calculating distance values between the defect type models and the partial discharge model;
calculating probability values of the defect types for the partial discharge signal event from the distance values calculated at calculating;
and
determining a type of defect in the partial discharge signal event based on the probability values of the defect types for the partial discharge signal event.

3 more elements

An apparatus for determining a type of defect in partial discharge, comprising:

a virtual space implementation unit for forming a virtual space corresponding to n parameters generated based on defect types causing partial discharge;
a partial discharge signal analysis unit for, when a partial discharge signal event occurs, extracting parameter values corresponding to the n parameters, based on a generated partial discharge signal;
a calculation unit for comparing pieces of location information of defect type models, arranged in the virtual space by combining the parameter values of the n parameters for each of the defect types, with location information of a partial discharge model, arranged in the virtual space by combining the parameter values of the n parameters for the partial discharge signal, calculating distance values between the defect type models and the partial discharge model, and calculating probability values of the defect types for the partial discharge signal event from the distance values;
and
a defect type determination unit for determining a type of defect in the partial discharge signal event based on the probability values of the defect types for the partial discharge signal event.

2 more elements

Dependencies are inferred from the claim text.

Method and device for determining the defect type of a partial discharge

Life of this patent

Method and device for determining the defect type of a partial discharge

Life of this patent

Abstract

Claims18