Wide area measurement based protection support during power swing
Wide Area Measurement System (WAMS) data based classification of power swing according to severity. Coordinate zone 2 and zone 3 operation of relay and detect out-of-step condition to activate out-of-step tripping (OST). An integrated fuzzy decision approach utilizing four features is proposed. Output blocks relay operation during severe swing and initiates OST to segregate an area during unstable condition.
empirical mode decomposition hilberthuang transform phasor measurement unit special protection scheme wide-area-measurements