Analysis of transmission line faults with linear and dynamic loads

摘要

The fault-generated transient components, which contain abundant fault information and are immune to the system's inconstancy, have been widely used in the fault detection and classification by means of travelling-wave or high-frequency transients. The analysis of faults with different loads helps in the detection of transients which ultimately helps in the localization, detection and classification of power system faults to provide efficient protection system. This paper addresses the variations in the system voltages and load currents during the faulty conditions with linear and non-linear loads. The investigated faults include line to ground fault, double line fault, double line to ground fault, and three phase faults. The detailed simulation study of transmission line faults with linear and non-linear loads has been carried out in MATLAB/Simulink environment. The simulation results show the impacts of faults on the system voltages and load currents.