A Design of a Modified Power System Stabilizer for Power System Transient Stability Enhancement

In this paper, an adaptive fractional order proportional integral derivative (FO-PID) power system stabilizer (PSS) is proposed to enhance the transient stability of a synchronous generator (SG) connected to an infinite bus. A single machine to infinite bus (SMIB) power system is subjected to various operating conditions and disturbances. To damp the oscillations resulting at these situations, the SG is equipped with a PSS. An adaptive FO-PID controller is suggested to play the role of the PSS. To interpret the effectiveness of the proposed FO-PID-PSS controller, several simulation results are presented for the SMIB power system, and compare the system in two cases: when equipped with and without the proposed controller. The novel proposed FO-PID-PSS controller has proved its efficiency in system transient stability enhancement for the SMIB power system.