ANN Based Shunt Active Power Filter for Harmonic Mitigation in Grid Connected PV System

PV generating systems have gained prominence as an important renewable energy supply that can be linked to the transmission network. Despite this same fact that many PQ issues arise with integrating of large PV systems towards the grid as a result of the substantial use of non- linear electronic systems. Harmonic currents were among the most important voltage regulation that utility deal with on a daily basis. A Voltage Source Inverter Filter is meant to enhance power quality by reducing current harmonics, correcting for voltage regulation, and minimizing THD. P&O MPPT is updated to handle the issue of rapid irradiation shift, unlike the classic P&O MPPT approach, in order to harvest utmost electricity from a Photovoltaic. The Synchronous Detection Technique is utilized to retrieve the reference signal (for harmonics detection) in this case, and a PWM control technique is utilized to provide switching signal to the VSI. ANN and FLC based SAPFs are employed on the dc side of the Active power filter to reduce the error between Vdc ref and real voltage, and the outcome is compared to that of a standard PI controller for the improvement of THD. For all control approaches, THD analysis is conducted in MATLAB/SIMULINK and thus the results are compared.