A Review on the Computational Methods of Power System Stabilizer for Damping Power Network Oscillations

Uncertainty in the operating condition deviation from the normal equilibrium point in the transmission level of the power system is being an important problem due to the increasing use of renewable energy, mainly wind and solar power farms. It requires an attentive monitor and control action due that a delay that can lead to instability in handling the modern power system. Various control devices have been employed in the deregulated complex power network. They try to ensure a new reasonable operating condition in a short time without compromising the power security. This paper presents an exhaustive analysis of the state of the art from the conventional methods to the newest applied to power system stability. The issues caused by failures in the controller operations are presented together with the statistical data of blackout experiences. The application of different metaheuristic techniques in enhancing the controller characteristics in power system stability attainment is also studied. The objective functions from the main studies are studied, where the principal indexes for exploring the controller performance characteristics are shown. The case of achieving coordination between flexible Alternating Current transmission system controllers and power system stabilizers are summarised. Finally, the main case studies are analysed.