Discrete control of TCSC for stability improvement in power systems

Changes in the network such as connecting a shunt resistor, inserting a series capacitor, reduction of generation, load etc., when accomplished under a suitable control scheme can improve transient stability for FACTS. Switching of series capacitors in a transmission line can also help to damp oscillatory power transients. This paper presents a detailed analysis and study of a discrete control strategy for the thyristor controlled series capacitor (TCSC) to improve stability.