A NEW NUMERICAL ALGORITHM FOR FAULT LOCATION ESTIMATION USING TWO-TERMINAL SYNCHRONIZED VOLTAGE AND CURRENT PHASORS

This paper presents a new numerical algorithm for fault location estimation which uses data from both end of the transmission line. The proposed algorithm is based on the synchronized phasors measured from the PMUs (Phasor Measurement Units) installed at both terminals of the transmission lines. Based on the length of the transmission line, the proposed algorithms are divided into the short line (without shunt capacitance) and long line algorithm (with shunt capacitance). For the purpose of the unknown fault distance the phasor calculation method is used. The proposed algorithm is tested through computer simulations to show its effectiveness.