Adverse increase in generator terminal voltage and reactive power transients caused by power system stabilizers

This paper studies the adverse impact on the transient performance of both generator terminal voltage and reactive power output caused by power system stabilizers (PSS). The analysis of the zeros of a transfer function different from that of the stabilization loop provides a better understanding of the adverse increase in terminal voltage and reactive power transients caused by PSSs. The relationship between the location of selected transfer function zeros and the PSS adverse effects is demonstrated.