Abstract:
This paper introduces new algorithm to improve
the performance of a Shunt Active Filter (SAF) by tuning
the PI controller gain in order to maintain constant dc link
voltage for non-linear balanced and unbalanced loads.
The planned PI controller utilize a new artificial
intelligent technique methods called grey wolf
Optimization (GWO) for tuning the gain parameters of PI
controller to attain optimality for SAF dc link voltage . For
testing the heftiness of the controller unbalanced resistive
loads that fed from uncontrolled three-phase bridge
rectifier, proposed system uses balanced are taken as a
non-linear loads. the hysteresis current control method
and the instantaneous PQ theory is used to make the
reference current is used in this strategy to distinguish the
the actual currents and extracting reference in order to
make the switching pulse for the Shunt Active Power Filter
method. Determined Simulation results are attain with
(Matlab/Simulink) it demonstrates so as to the GWO
based PI controller tuning method is effective for
maintaining the constant dc link voltage in minimum time
period to improve the performance of the active filter.
