DefinePK

Abstract

The proposed work deals with comparison of grid connected STATCOM based multilevel inverter. The conventional method using five level inverter based grid connected STATCOM generating more harmonics. And the proposed system using nine level inverter generating low harmonics due to using of PWM based pulse modulation technique. The AC output voltage is obtained by the series cascading of the output voltage of the two inverters. The voltage across the load decreases due to the addition of extra load and the load voltage are restored back to normal value by using grid connected STATCOM. The ability of open loop system to bring the voltage and reactive power back to the set value is represented in this paper. The simulation studies for open loop systems are performed on a standard bus system.