Analytical study of the impacts of an SSSC and its power flow controller on torsional interaction

Previous research has shown that a power flow controller based on a static synchronous series compensator (SSSC) can cause torsional interaction with nearby turbine generators. This paper presents further investigations to examine the extent to which such torsional interaction is caused by the resonant characteristics of the SSSC itself, and by the addition of the power controller around the SSSC. The results demonstrate that the power flow controls can directly influence the electromechanical modes of a turbine generator even when there is no electrical resonance caused by the SSSC itself.

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