A Harmonic Detection for Grid Connected PV System under non linear load using cuk converter

Abstract

This paper proposes a Grid connected PV system using AI controlled CUK converter. Due to the presence of power electronics components in the converter and the inverter harmonics gets occurs in the devices. By using Cuk converter and different types of controller (PI, Fuzzy Logic Controller (FLC), FLC with PI and ANN controller) used in the inverter to reduce the harmonic occurs on the devices. In MATLAB simulink by using FFT analysis harmonics get detected and THD values are mentioned. Simulation results for grid connected PV system for various controllers are presented.Moreover, a Fast Fourier Transform (FFT) analysis is also included in harmonics detection control for injection of extracted solar PV power to the distribution system under grid connected mode and to improve the dynamic behaviour under climate changes. Simulation results of pv system based microgrid are presented under numerous operating states.