Title :
Contingency ranking for transient stability via eigen-sensitivity analysis of small signal stability model
Author :
Nam, H.K. ; Shim, K.S. ; Kim, Y.K. ; Song, S.G. ; Lee, K.Y.
Author_Institution :
Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju, South Korea
Abstract :
This paper presents a new systematic contingency screening and ranking method for transient stability. The modal synchronizing torque coefficient (MSTC) is computed using eigen-sensitivity analysis of the electromechanical oscillation modes in a small signal stability model and contingencies are ranked in decreasing order of the sensitivities of the MSTC. The relevant clusters are identified using the eigenvector or participating factor. The proposed algorithm is tested on the New England 10-machine 39-bus system. Ranking obtained by eigen-sensitivity analysis is consistent with the time simulation results
Keywords :
control system analysis computing; eigenvalues and eigenfunctions; power system analysis computing; power system control; power system transient stability; sensitivity analysis; synchronisation; torque; computer simulation; contingency ranking; contingency screening; eigen-sensitivity analysis; eigenvector; electromechanical oscillation modes; modal synchronizing torque coefficient; participating factor; power system transient stability; small-signal stability model; time simulation; Analytical models; Computational modeling; Frequency synchronization; Power system stability; Power system transients; Sensitivity analysis; Signal analysis; Stability analysis; Torque; Transient analysis;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.850039
