TY - JOUR AU - Khan, Akhlaque Ahmad AB - With the widespread integration of renewable energy systems (RES) into the electric grid, maintaining power quality within specified limits has become a major focus. The total harmonic distortion (THD) value of the currents transferred to the grid and directly affecting power quality in (RES) such as grid-connected photovoltaic (PV) and fuel cells (FC) should not exceed 5%. To achieve this objective, various filter topologies are used to interface between the inverters, which are components of PV and FC systems, and the grid. Although there are numerous filter topologies, L and LCL-type passive filters are the most commonly used topologies in grid-connected systems. This study analyzes the L and LCL type filter topologies for the H-bridge neutral point clamped (HNPC) inverter. The study’s modeling was carried out in the MATLAB/Simulink®. By comparing the simulation results, L and LCL filters’ harmonic attenuation capabilities, maximum power transferred to the grid, and effects on grid current have all been investigated. Experimental results have shown that the THD is considerably reduced at the point of common coupling when using a 9-level (HNPC) topology. TI - RETRACTED ARTICLE: Improvement of power quality in grid connected renewable energy systems using passive filters JF - Multiscale and Multidisciplinary Modeling Experiments and Design DO - 10.1007/s41939-023-00268-4 DA - 2024-06-01 UR - https://www.deepdyve.com/lp/springer-journals/retracted-article-improvement-of-power-quality-in-grid-connected-4901eDn1m5 SP - 991 EP - 991 VL - 7 IS - 2 DP - DeepDyve ER -