Using a TCSC for line power scheduling and system oscillation damping-small signal and transient stability studies

This paper describes, in a tutorial manner, TCSC control aspects illustrated through simulation results on a small power system model. The analysis and design of the TCSC controls, to schedule line power and damp system oscillations, are based on modal analysis and time and frequency response techniques. Transient stability results are included, to validate and refine the TCSC controller design and protection logic under large disturbances.