Study on Identification of SF6 Gas Leakage of GIS Equipment Based on Infrared Spectroscopy
The current feature extraction for SF6 gas leakage identification of GIS equipment generally adopts an independ-ent mode,which leads to low recognition efficiency. Therefore this paper studies the infrared spectroscopy based identifi-cation of SF6 gas leakage of GIS equipment. Based on the current equipment requirements and standards,first the abnor-mal gas leakage data are collected and common features of leakage signals are extracted to improve recognition efficiency. Then a SF6 gas leakage identification model using infrared spectroscopy is constructed and a multidimensional correction method is used to enhance the identification results. The test results show that for the randomly selected 4 GIS devices, the proposed method can achieve 15 or more times of leakage identification after three cycles of testing,indicating its high flexibility and selectivity with the assistance of infrared spectroscopy,as well as potential practical application value and innovative significance.
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