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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Muhamad Faizal Yaakub
Technical University of Malaysia Malacca
Control & Systems Engineering Electrical & Electronics Engineering

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LCL filter design for grid-connected single-phase flyback microinverter: a step by step guide Muhamad Faizal Yaakub; Mohd Amran Mohd Radzi; Maaspaliza Azri; Faridah Hanim Mohd Noh
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 12, No 3: September 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v12.i3.pp1632-1643

Abstract

Recently, LCL has become amongst the most attractive filter used for grid-connected flyback inverters. Nonetheless, the switching of power devices in the inverter configuration creates harmonics that affect the end application behavior and might shorten its lifetime. Furthermore, the resonance frequencies produced by the LCL network contribute to the system instability. This paper proposes a step-by-step guide to designing an LCL filter by considering several key aspects such as the resonance frequency and maximum current ripple. A single-phase grid-connected flyback microinverter with an LCL filter was designed then constructed in the MATLAB/Simulink environment. Several different parameter variations and damping solutions were used to analyze the performance of the circuit. The simulation result shows a promising total harmonic distortion (THD) value below 5% and harmonic suppression up to 14%.
Co-Authors Faridah Hanim Mohd Noh Maaspaliza Azri Mohd Amran Mohd Radzi