Coordinated Design of Damping Controllers for Power System Stability

This paper presents stability improvement of the coordinated design of damping controllers for a single machine infinite bus system. The primary goal of this work is to minimize the rotor speed deviation of the machine. Under various loading circumstances such as nominal loading, light loading and heavy loading, the system's performance has been examined. Power system stabilizer (PSS) and static synchronous series compensator (SSSC) are used as damping controllers. The damping controller parameters are adjusted using a unique sine cosine algorithm (SCA). The responses obtained using SCA are compared with the other three competitive methods to show the superiority of the proposed approach. It was found that the SCA method is capable of effectively suppressing power system oscillations.