Sensitivity analysis of FACTS control characteristics with respect to network configuration and requirements.

In this work the dynamic performance of FACTS systems is analysed, with particular reference to first-swing and oscillation damping effects on system under emergency conditions. FACTS devices are modelled in terms of regulating action (phase shifting, series and shunt compensation) and transfer functions (which characterize the control strategies). The effects of different regulating actions are compared, including power considerations, in order to assess the most adequate control characteristics with respect to network configuration and requirements.