DETERMINATION OF FAULT LOCATION IN TRANSMISSION LINES

Abstract

This thesis presents a new numerical algorithm for fault location on transmission lines. It does not need line parameters, it is settings-free, which is a major step forward compared to the existing approaches that require this information. Line parameters are approximately constant, but they differ as the loading and weather variations, this affects the accuracy of the preexisting fault location algorithms. Thus, a technique that does not require line parameters would be more accurate, flexible and cost-effective than those approaches that do require line parameter to determine the location of the fault. This is very essential for the fast and secure elimination of faults on transmission lines, the solution leads to words a significant improvement in the quality of the power supply. The new technique is based on the emerging synchronized measurement technology, using synchronized data sampling at both line ends. The thesis shows the algorithm derivation and the results by using the PS CAD simulations