Abstract
ABSTRACT Three phase shunt active power filter (SAPF) using multilevel inverter (MLI) is implemented in this paper for a grid integrated solar photovoltaic (PV) system for eliminating the harmonics. The objective in this work is to develop and regulate the grid integrated PV system for mitigation of harmonics with incorporation of SAPF. The PV integrated SAPF delivers the active/reactive power to the grid to reduce the harmonic contents. Harmonic compensation ability of SAPF is mainly achieved by employing suitable control technique to estimate the reference current signal. Here, adaptive artificial neural networks (AANNs) like adaptive neuro-fuzzy interference system (ANFIS), Widrow–Hoff adaptive linear neuron (WH ADALINE) and Modified Widrow–Hoff adaptive linear neuron (MWH ADALINE) are employed for generating the reference current of VSI in the MLI. The control techniques are tested in MATLAB/SIMULINK as well as real-time OPAL-RT environments. It is noticed that proposed MWH ADALINE-based SAPF design shows enhanced performance to maintain the power quality (PQ) by restricting the distortion level below 5% as per the IEEE/IEC standard.
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