Abstract
This paper presents a protection scheme for alternating current transmission lines based on the traveling wave propagation. The analyzed protection scheme uses measurements in only one terminal by using the distributed parameter theory. The method analyzes the fault location using the correlation between two traveling waves, backward and forward waves. Results demonstrate that the correlation method can accurately estimate the fault distance, and this is carried out by using the first two wavefronts of the arrived signals at the measurement terminal. The algorithm is validated through the IEEE 9-bus test system, considering different faults simulated in the software ATP-EMTP. The studied method’s effectiveness is assessed and compared with the MODWT, showing both techniques good results for the fault location process.
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