Main Article Content
Abstract
Transient stability improvement is essential for maintaining system security that is the incidence of a fault should not lead to tripping of generating unit due to loss of synchronism. Flexible ac transmission system (FACTS) devices are found to be every effective in stressing a transmission network for better utilization of its existing facilities without sacrificing the desired stability margin. Amongst the available FACTS devices for transient stability enhancement, the TCSC is the most versatile one and it is a series FACTS device which allows rapid and continuous changes of the transmission line impedance.