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A static VAR compensator (SVC) is designed for the damping of electromechanical mode oscillations in a longitudinal power system. The parameters for both the feedforward controller and the feedback controller of the SVC are determined using eigenvalue assignment. It is found that the specified eigenvalues can be exactly assigned by the proposed method. Time domain simulation results indicate that system dynamic performance can be improved by using the designed controllers. In addition, the capacity of the SVC can be reduced without deteriorating system damping characteristics by the addition of the feedback controller.
Hsu et al. (1991) studied this question.