Analysis and Design of Wide Area Damping Controller for STATCOM in Series Compensated Power System

The devices support signals are commonly used to increase damping and mitigation of Subsynchronous Resonance in Power System. Choice of auxiliary signal is indeed a difficult choice. Auxiliary signal may be local signal or remote signal. In this paper STATCOM is install in the center of Power system and it is shown that deviation in speed of generator rotor is one of the most appropriate supplementary signal. This signal is a remote signal hence a suitable time delay is considered. Study system is IEEE first benchmark model. First standard model of STATCOM with IEEE representation is presented in detail. All the differential equations and initial conditions are presented in the paper. Both, small signal and large signal stabilities are carried out.