International Journal of Electronics and Electrical Engineering, cilt.3, sa.3, ss.202-206, 2015 (Hakemli Dergi)
Accurate estimation of fault location is essential for
reliability of power system. For this purpose, fault location algorithms are
studied and compared in this paper. These algorithms are based on the
measurements taken from either sending end of a transmission line or both
sending and receiving ends of the line. The types of fault location algorithms
are discussed first. The effectiveness of the algorithms are tested on a faulty
transmission line simulated in DigSILENT. Algorithms developed in MATLAB use the
voltage and current values obtained from the simulated system. The impact of
the fault distance, fault types and the fault resistance are examined in
detecting the fault location. The study results reveal that the symmetrical
fault location algorithm accurately estimates the fault location in all cases.