Dynamic study and stability analyze of damping cohefision and reactance in TCSC controller connected on optimization SMIB system

Thyristor controlled series compensator (TCSC) controller, can control the line impedance through the introduction of a thyristor-controlled capacitor in series with the transmission line. The TCSC controller is useful for stability improvement. Model is different from other paper because synchronous generator with just field circuit and one damper on q axis is used. While in other studies Phillips-Heffron has been uses. At the first step, the transition from a capacitive mode to bypass mode the TCSC controller is modelled with detailed dynamics. The TCSC controller is modelled in stability improvement. Then simulated TCSC shows that the oscillations are changed with escalate the damping coefficient. Change in value of reactance of the TCSC also affects the stability of the system. The analysis shows that if compensation is provided through TCSC controller then the system attains stability at a faster rate that has come in another paper from these writers.