Damping controller input-signal loss effects on the wide-area stability of an interconnected power system

A unified Smith predictor approach for power system damping control design using remote signals

“…Mekki et al [23] have proposed a solution based on the replacement of the lost remote signal by a similar local signal through the use of signal-loss detector. A nonlinear simulation has been carried out for 25 s to further demonstrate performance robustness of the controllers in the presence of system nonlinearities, including saturation.…”

Robust Damping of Multiple Swing Modes Employing Global Stabilizing Signals With a TCSC

“…Hence, the controller design problem boils down to solving this LMI. However, inequality (15) The necessary transformation through substitution of new controller variables requires a solution to the design problem given by (20) …”

“…One of the concerns of centralized design using remote signals is the possible loss of one of the channels leading to unsatisfactory damping performance. Reference [20] has proposed a solution based on the replacement of the lost remote signal by a similar local signal through the use of a signal-loss detector. It is possible to adjust the phase characteristics of the replacement local signal by a prefilter of required gain and phase.…”

Frequency Scanning for Power System Property Determination—Applied to a Wind Power Grid

“…Power system stability and small signal transient performance are determined from these modes, and consequently, it is of great value to have knowledge of these modes in order to attain good power system security and the potential for maximum power transfer [6]. The modes can be determined using calculations based on knowledge of the power system and its components.…”