Extended Ideal PSS: A Theoretical Study

Abstract

This paper proposes a normal form driven controller for damping the oscillatory dynamics in power systems. A normal form based excitation controller is investigated. We are adopting a novel nonlinear control design for the auxiliary controller rather than a traditional linear control technique, and this nonlinear controller is expected to replicate optimal PSS features. We are using eigenvalue analysis to evaluate the performance of this novel controller for the IEEE 1.1 (4th order) model, and the results reveal that the suggested technique has optimal PSS features.