SYSTEM AND METHOD FOR DETECTING THE FAILURES IN GAS INSULATED SWITCHGEAR USING FUZZY INFERENCE

摘要

The disclosed invention relates to my PD estimation system and method GIS, is to accurately diagnose the type of electrical signal detection method and the acoustic signal detection and mixed to precisely measure the GIS within the partial discharge signal, a partial discharge by the fuzzy reasoning .; To this end the present invention provides measuring unit an electric signal measuring section and an acoustic signal measuring the electric signal and the acoustic signal by the partial discharge within the GIS, respectively; Wherein converting the measured electrical signals and acoustic signals to form a signal analysis is easy to process the electrical signal to extract a feature value from each and the feature amount extracting section and sound signal processing and feature extraction unit; Above with the extracted feature value as the input signal to generate a spread value in the specified one or more fuzzy rules, the fuzzy inference system including parts and provides the estimation method, the measurement target area is wide and had the effect of noise small, various analysis you can apply the technique makes it possible to accurately diagnose the type of partial discharge in GIS.