Title :
A New Digital Distance Relaying Algorithm for First-Zone Protection for Series-Compensated Double-Circuit Transmission Lines
Author :
Kumar, Ravindra ; Sinha, Aloka ; Choudhary, Girish Kumar
Author_Institution :
Dept. of Electr. Eng., NIT Patna, Patna, India
Abstract :
This paper proposes a new digital distance relaying algorithm for first-zone protection for series compensated double-circuit transmission lines. The new method uses data from one end of the protected double-circuit lines to calculate the fault distance. It is shown that the new method is independent of load current, remote in feed and source impedances. To validate the proposed scheme, numerous computer simulations have been carried out on a 400-kV, 300-km-long series-compensated double-circuit transmission line using MATLAB/SIMULINK software. Simulation results demonstrate the effectiveness of the proposed scheme since the maximum percentage error is within ±5%.
Keywords :
power transmission lines; power transmission protection; relay protection; MATLAB-SIMULINK software; computer simulations; digital distance relaying algorithm; distance 300 km; fault distance; first-zone protection; load current; maximum percentage error; protected double-circuit lines; remote infeed; series compensated double-circuit transmission lines; series-compensated double-circuit transmission line; series-compensated double-circuit transmission lines; source impedances; voltage 400 kV; Circuit faults; Equations; Estimation; Fault location; Mathematical model; Power transmission lines; Radio frequency; Algorithm; Distance protection; double-circuit transmission lines; series-compensation;
Conference_Titel :
Advances in Computing and Communications (ICACC), 2013 Third International Conference on
Conference_Location :
Cochin
DOI :
10.1109/ICACC.2013.26