Abstract
The coordinated tuning of shunt and series flexible AC transmission systems (FACTS) damping controllers with power system stabilizer (PSS) is presented. Here static var compensator (SVC) and static synchronous series compensator (SSSC) based controllers are coordinated with PSS to enhance the damping of power system oscillations. The design of proposed damping controller under different loading conditions is formulated as an eigen value based optimization problem. The controller gains of a linearized power system with proposed controller are optimized using genetic algorithm (GA). The test power system employed with PSS, SVC and SSSC. Finally, the proposed coordinated controller performance is tested with both eigen value analysis and time domain simulations. The simulation results of three different control schemes employed on the test system are compared. Efficient damping under different loading conditions is obtained by employing the proposed coordinated controller.
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