Power oscillation damping controller by statcom
Keywords:
Power system stability, Flexible ac transmission system (FACTS), Static synchronous compensator (STATCOM), Energy storage, Linearized modelAbstract
This paper describes an approach to design a damping controller of a energy storage type STATCOM (ESTATCOM). The energy storage type STATCOM is an advanced flexible AC transmission system (FACTS) device, which controls both active and reactive power injection/absorption to the power system. It also provides a better power swing damping. Using a linearized block diagram proposed by the author, the present study examines the design of the E-STATCOM damping controller. Several case studies have been performed to evaluate the power swing damping effect of the ESTATCOM a machine infinite bus system. The results of the study show that an E-STATCOM, which control both reactive and active power injection/absorption to power system, has a more significant effect on power swing damping than that controlling the reactive power alone.
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