Generalized S-Transform-based Voltage Flicker Detection
In view of the inadequate accuracy in the extraction of voltage flicker signals,this work tentatively proposed a generalized S-transform-based voltage flicker detection method.The method was designed to introduceαvariables to change the width of S-transform window function,and to locally adjust frequency and time resolution of S-transform,hence reali-zing accurate detection of voltage flicker.The proposed method was indicated by experiment to be superior in accuracy compared with the conventional S-transform method and competitive in effectively detecting voltage flicker.
voltage flickergeneralized S-transformwindow functionvoltage flicker detection