The main target of this research is to allow the DSTATCOM
using 6-pulse inverter to participate effectively
in mitigating voltage sags. The basic idea of the voltage sag
reduction using a D-STATCOM, which is connected in shunt
with the system, is to dynamically inject a reactive power
into the utility grid. In this study, 6-pulse inverter operation
is conducted using the sinusoidal PWM. The voltage
magnitude as well as phase angle are taken as a base to
convert the DC link voltage (Vdc) on the capacitor to a
voltage source using the developed D- STATCOM. This
method offers structural simplicity and less calculation
complexity by using Power System Computer Aided Design
(PSCAD) software. Simulation results indicate that this
method is effective and D-STATCOM has good performance
and capable of mitigating voltage sag as well as improving
power quality of a distribution system. Static and dynamic
loads are used to deem the effectiveness of the developed DSTATCOM.