A New AC Model for Transmission Line Outage Identification

摘要

Identification of line outage is very vital in today's modern power system. Most of the related studies are based on the DC power flow model which utilizes the phasor angle measurement obtained from phasor measurement unit (PMU). In this study, a new AC model is developed to solve line outage identification (LOI) problem utilizing complex voltage phasor measurements of PMU. Further, the measurement noises are also included in the developed model to make it viable in real power systems. For this purpose, Gaussian noise with mean zero and standard deviation (SD) of 1-5% is taken into account. The developed model is applied on benchmark IEEE 5, 14, 57 bus, and Damodar Valley Corporation (DVC) 38 bus practical Indian networks. The simulation results are also compared with two existing methods and the test results reveal the applicability and validity of the developed model.