ANN Controller for Mitigation of Power Quality Issues Using Single Phase Unified Power Flow Controller

Abstract—This research proposes a nonlinear control
method for single-phase Unified Power Flow Controller
(UPFC) to improve Power Quality (PQ) issues in single-phase
power grid. The main objective of this work is to maintain the
appropriate level of load voltage minimal distortion and the
control aims include the following: (i) compensation for
current harmonics and reactive power; (ii) compensation for
voltage disturbances (harmonics and swell, sags and flickers of
voltage); and (iii) regulate the voltage on the DC bus. For the
purpose to reduce harmonics in power systems and generate
reference current for AC supply, the Decoupled Double
Synchronous Reference Frame (DDSRF) theory has been
presented. The influence of harmonics is then lessened by
injecting this harmonic into power systems. Artificial Neural Network (ANN) with Hysteresis Current Controller (HCC) is used to create hysteresis Current regulation, which lowers Total Harmonic Distortion (THD) and increases output
voltage. Through several simulation outcomes, the suggested
system's effectiveness is examined. Hardware results are also confirmed with simulation outcomes using Matlab/Simulink.