A graphic user interface-based program for voltage sag- and flicker-source detection

This paper presents a graphic user interface-based program for voltage sag- and flicker-source detection. The design environment of the program is based on MATLAB graphic user interface (GUI) development environment. The GUI feature provides the user with visual interaction and facilitates the analysis. The proposed methods for voltage sag- and flicker- source detection are based on the sign of estimated resistance. The program has been tested using two actual field measurements.