A New Approach Using Optimization for Tuning Parameters of Power System Stabilizers

This paper presents a new method based on the (1) The concept of adjusting the PSS parameters was optimization method for tuning the parameters of the Power presented in (9). A root-locus method was implemented for System Stabilizers (PSS) to enhance small-signal stability. A tuning the parameters in (IO). This method suffers the general-purpose nonlinear programming package is used to disadvantage of less coordination in all parameters. minimize the real part of the dominant eigenvalue in the system without implementing the eigensensitivities. The (2) In (11,12), an optimal control theory was used for basic control theory and the root-coefficient relationship for adjusting the parameters; however, proper Q/R matrices polynomial equations are incorporated for obtaining the equality constraints. The PSS parameters bound in a set are formulated as the inequality constraints. A comparative result for a small-signal stability problem validates the applicability of the proposed method.