Improvement of stability by optimal location with tuning STATCOM using particle swarm optimization algorithm

Abstract

Now a day’s modern power system demands promptly increasing but so many problems are facing by utilities. The problems include power flow violation in the system i.e. voltage dips in the buses, static/dynamic instability and voltage collapse etc. In this paper transient stability is analyzed via optimal location of the Western Science Coordinated Council (WSCC) 9 bus system. The FACT device i.e. STATCOM is introduced properly, when voltage goes down. It is helpful using PSAT software. The system performance has been analyzed by applying three-phase fault. It is assumed the fault time at 1.05 s and clearing time 1.15 s. similarly fault time 3.15 s and clearing time 3.5 s. in this fault condition, the STATCOM is used in the position of optimal location in 9-bus system. The particle swarm optimization algorithm technique is implemented with STATCOM for better improvement of stability.