With its three frequency bands structure, the new Multi Band Power System Stabilizer (MB-PSS) has recently been used with the Automatic Voltage Regulator (AVR) in order to improve the power systems stability. Adjusting the parameters of these two regulators can play a significant role in improving damping any eventual electromechanical oscillations in power systems. The MB-PSS ensures a maximum damping, not only in local modes guaranteed by conventional regulators, but also in interregional mode. This paper introduced a new technique based on Genetic Algorithms (GA) that optimizes the AVR and MB-PSS parameters. A comparison based on simulation between the proposed approach GA (MB-PSS/AVR) and the controllers (AVR without MB-PSS, AVR with MB-PSS) was performed. The simulation results with the multimachine network nine-bus test system, known in the literature as Western System Coordinating Council (WSCC), show the efficiency of the proposed approach to damp oscillations and improve the power systems stability.

Username
Password