Load frequency control (LFC); Capacitive; Energy; Storage; Damping
Electromechanical oscillations in a power system can be effectively damped by fast acting
energy storage devices, because additional energy storage capacity is provided as a supplement to the kinetic energy storage in the moving mass of the generator rotor. The energy storage devices share the sudden changes in power requirement in the load. A new scheme using a small rating capacitive energy storage unit is proposed in this paper for improvement of the dynamic performance of a power system having load-frequency control. A comprehensive digital computer model of a two-area interconnected power system, which includes the governor dead-band non-linearity, steam reheat turbine, boiler dynamics and the generator rate constraint, is developed for the analysis.