Title :
Design of a robust power system stabilizer over a wide range of load characteristics
Author :
Reza, Mohammad A. ; Choudry, M.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., West Virginia Univ., Morgantown, WV, USA
Abstract :
The authors present a novel method for designing a power system stabilizer to improve the dynamic stability of AC power systems. the static load is modeled as a nonlinear function of load bus voltage and the dynamic load is modeled by an equivalent induction motor load. The rotor speed and angle deviations of the synchronous generator are used as a stabilizing signal to the power system stabilizer (PSS). The stabilizer gains are selected based on the eigenvalue sensitivity of electromechanical mode of the closed loop system with respect to the load characteristics. Eigenvalue analysis and simulation results show that the proposed PSS improves the system response over a wide range of load characteristics
Keywords :
closed loop systems; control system synthesis; eigenvalues and eigenfunctions; induction motors; power system control; sensitivity; stability; synchronous generators; AC; PSS; angle; bus voltage; closed loop system; control system synthesis; dynamic stability; eigenvalue sensitivity; eigenvalues; equivalent induction motor load; load characteristics; power system stabilizer; response; rotor; synchronous generator; Design methodology; Eigenvalues and eigenfunctions; Load modeling; Nonlinear dynamical systems; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Power systems; Robustness;
Conference_Titel :
Power Symposium, 1990., Proceedings of the Twenty-Second Annual North American
Conference_Location :
Auburn, AL
Print_ISBN :
0-8186-2115-X
DOI :
10.1109/NAPS.1990.151350
