This paper proposes to use gravitational search algorithm (GSA) to design a supplementary sub-synchronous damping controller for the static synchronous series compensator (SSSC) device to damp the torsional oscillations.
Supplementary generator control, flexible AC transmission system (FACTS), and high voltage direct currents (HVDC) are engineered devices designed to damp such low frequency swings.
This paper proposes a systematic analysis and design procedure for simultaneously determining the best locations and input signals of flexible AC transmission system (FACTS) devices in order to damp out inter-area oscillations.
A question of great importance is the selection of the input signals and a control strategy for this device in order to damp power oscillations in an effective and robust manner.
This is a power-electronics based device, whose purpose is to damp the frequency oscillations due to disturbances in the power balance of a power system, similarly to the rotational inertia of a SG.
It is demonstrated that multiple stabilizers can be arranged in a single FACTS device to effectively damp power system multi-mode oscillations.
In a TLD, inherent liquid damping is rather small, at least in the range of sloshing with small amplitudes if other devices to create liquid damping are not used.
In rocking timber structures, the traditional connections such as nailplates may need to be replaced by damping devices to provide the required lateral resistance and dissipate the seismic energy.
It then reviews various means, such as aerodynamic design, structural design and auxiliary damping devices, to reduce wind-induced responses of buildings.
Friction is considered as one of the most reliable mechanisms of energy dissipation that has been utilized extensively in passive damping devices to mitigate vibration of civil engineering structures subjected to extreme natural hazards such as earthquakes and windstorms.
