Title :
Stability analysis for power swing protection
Author :
Abyaneh, H. Askarian ; Marjanmehr, M. ; Meshkin, M.
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ., Tehran, Iran
Abstract :
A transmission line trip during a power swing may cause instability of a power system. It is necessary to recognize the power swing from fault. Based on stability boundary, the power swing blocking relays must be set. To do that, first power swing should be analyzed. Second a way of probability of occurrence of fault must be found. Third, the critical condition under which the stability of a power system not disturbed is recognized. Finally the settings of the power swing relays are calculated. In this paper, analysis of the power swing occurrence has been made. By defining transmissions and generators sensitivities coefficients, the way of making the line under consideration full load is found. The way of minimization of distance between load impedance and the last zone of distance protection is given and the settings of the power swing relays are calculated.
Keywords :
power system stability; power transmission protection; relay protection; load impedance; power swing blocking relays; power swing protection; sensitivity coefficients; stability analysis; stability boundary; transmission line trip; Circuit faults; Power generation; Power system analysis computing; Power system faults; Power system protection; Power system relaying; Power system stability; Power transmission lines; Protective relaying; Stability analysis;
Conference_Titel :
Control Conference, 2004. 5th Asian
Conference_Location :
Melbourne, Victoria, Australia
Print_ISBN :
0-7803-8873-9