Indian Journal of Science and Technology

Abstract

This paper presents a study of FACTS devices mainly static synchronous compensator (STATCOM) on loading margin study and power stability. Their steady state modeling and effects on power system performance have been studied. Effects of STATCOM on system loadability have been discussed and presented here. Continuation power flow is used to evaluate the effects of this device on system loadability. Eigenvector analysis applied at the maximum loading point is used to rank the most critical voltage buses. After that, it would be possible to optimize location of STATCOM in order to achieve maximum enhancement of system loadability. The models and methodology for placing STATCOM are tested in a 14 bus system. Test system reveals that the incorporation of STATCOM significantly improves Loading Margin and the line power transfer capability of the system and therefore, the stability of the system is increased.
Keywords: Continuation power flow; maximum loading; STATCOM; voltage stability