COMPARATIVE ANALYSIS OF FAULT DETECTION IN TRANSMISSION LINE USING PHASOR MEASUREMENT UNITS

Fast and Accurate Fault Loation is critical to restoration of the power system. Several methods for fault location using synchronized phasor measurements have been listed in literature review.Some of the listed methods use voltage and current measurements at one end or use two ends measurements. Other methods use synchronized voltage measurements only to eliminate the errors of current transformers.This paper regenerates the method using only voltage measurements and suggests a new algorithm using both voltage and current measurements with higher degree of accuracy.The proposed fault detection technique is based on Positive Sequence voltage and current measurement from PMUs.The proposed algorithm is tested for Standard IEEE 9 bus system using MATLAB/SIMULINK. Illustrative results are presented for various type of faults.