Title :
A new eigen-sensitivity theory of augmented matrix and its applications to power system stability analysis
Author :
Nam, Hae-Kon ; Kim, Yong-Ku ; Shim, Kwan-Shik ; Lee, Kwang Y.
Author_Institution :
Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju, South Korea
fDate :
2/1/2000 12:00:00 AM
Abstract :
In this paper, a new second-order eigen-sensitivity and perturbation theory of the augmented matrix is developed using of only dominant eigenvalues and their left and right-eigenvectors. Eigen-sensitivities on various system and control parameters are computed for the analysis of small signal and voltage stability of the New England power system. It is also shown that the sensitivity analysis may be used as an invaluable tool for analysis, planning, and operation of power systems: identification of the cause of the stability problems and weak lines; optimal tuning of control parameters; determining locations of compensating devices for stability enhancement such as capacitor compensation and FACTS devices
Keywords :
control system analysis; eigenvalues and eigenfunctions; matrix algebra; perturbation theory; power system control; power system stability; sensitivity analysis; FACTS devices; augment matrix eigen-sensitivity theory; capacitor compensation; control simulation; dominant eigenvalues; eigenvectors; optimal control parameters tuning; perturbation theory; power system stability analysis; sensitivity analysis; small-signal stability; stability enhancement; stability problems identification; voltage stability; weak lines identification; Control systems; Eigenvalues and eigenfunctions; Power system analysis computing; Power system control; Power system planning; Power system stability; Power systems; Signal analysis; Stability analysis; Voltage control;
Journal_Title :
Power Systems, IEEE Transactions on
