Performance Evaluation of Single-Phase Grid-Connected Photovoltaic Inverter Using LC and LCL Filter Based on the Reduction of THD
Year: 2024
Type: article
Abstract: Solar photovoltaic (PV) energy and its applications continue to grow in popularity as a means of enhancing society's sustainable development.There are a lot of issues to consider when PV systems are linked to the grid.One of the challenges, particularly only with large-scale use of PV systems, is harmonics in PV systems.This research investigates the use of well-known filters to reduce harmonics in PV systems.Filtering is required to decrease the harmonics due to the non-sinusoidal nature of PWM voltages at the converter output.To join the converter to the grid and decrease harmonics, a simple LC filter has traditionally been utilized.The use of LCL filters, on the other hand, has been proposed.The purpose of this research is to look at the impact of T-filters or LCL Filters on the overall working of a photovoltaic system that is connected to a grid.The perturb & observe algorithm is used for MPPT operation and the proportional-integral controller (PI) is used as the current controller in the closed-loop grid-connected PV system for the generation of pulses.The single-phase Grid-Connected Photovoltaic System for both LC & LCL Filters is implemented in this paper using MATLAB/Simulink.Total Harmonic Distortion is utilized as the performance metric in this comparison.The value of %THD for the proposed system i.e.8.06% emphasizes its necessity for implementation in practicality.
Authors: Repalle Rohit, Gudipati Kishor
Institution: Jawaharlal Nehru Technological University Anantapur
Language: English
Topic: Power Quality and Harmonics
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4406918811