This letter proposes an analytical approach to formulate the power system oscillation frequency under a large disturbance. A fact is revealed that the oscillation frequency is only the function of the oscillation amplitude when the system’s model and operating condition are fixed. Case studies also show that this function is damping-insensitive and could be applied to an inter-area model of a m...

Power system oscillation is a serious threat to the stability of multimachine power systems. The coordinated control of power system stabilizers (PSS) and thyristor-controlled series compensation (TCSC) damping controllers is a commonly used technique to provide the required damping over different modes of growing oscillations. However, their coordinated design is a complex multimodal optimizat...

This paper discusses and compares different control techniques for damping undesirable inter-area oscillation in power systems by means of Power System Stabilizers (PSS), Static Var Compensators (SVC) and Shunt Static Synchronous Compensators (STATCOM). The oscillation problem is analyzed from the point of view of Hopf bifurcations, an “extended” eigen analysis to study different controllers, t...

Satisfactory damping of power oscillations is an important issue to be addressed when dealing with the angle stability of power systems. This phenomenon is well-known and observable especially when a fault occurs. To improve the damping of oscillations in power systems, supplementary control laws can be applied to existing devices. These supplementary actions are referred to as power oscillatio...

The main objective of this paper is to investigate the enhancement of damping the power system oscillation via coordinated design of the Power System Stabilizer (PSS) and STATic COMpensator (STATCOM) controllers. The design problem of PSS and STATCOM controllers are formulated as an optimization problem. Using the developed linearized model of a power system equipped with STATCOM-based stabiliz...

To enhance the inertial response and damping capability during transient events this paper investigates an improved active power control for variable speed wind turbines. The optimized power point tracking (OPPT) controller, which swings the turbine operating point from the maximum power point tracking (MPPT) curve to the virtual inertia control (VIC) curves by the frequency deviation, is propo...

The Static Synchronous Series Compensator (SSSC) is one of the powerful Flexible AC Transmission System (FACTS) controller recognized for power flow, power oscillation damping and improving transient stability. This paper proposes controller that is a combination of Fuzzy Logic Power Oscillations Damping (FLPOD) controller with Proportional and Integral Power Flow (PIPF) controller for SSSC to ...