Modeling and Simulation of a Grid-Connected Three-Phase Photovoltaic Inverter with Integrated Voltage Stabilization for Residential Applications
DOI:
https://doi.org/10.58987/rfef0529Keywords:
PV inverter, Grid-connected systems, Simulink, MPPT, THDAbstract
Effective inverter design is necessary for photo-voltaic system integration into power grids in order to guarantee power quality and standard compliance. In this paper, a three-phase grid connected PV inverter is modeled and simulated using MATLAB/Simulink. Equations that depend on temperature and irradiance are used to model the PV, and its output is stabilized before being fed into a three leg IGBT inverter. Maximum power point tracking (MPPT) optimizes energy extraction, while an LC filter and phase locked loop are used to produce sinusoidal output and grid synchronization. With the root mean square output voltage of 230 V and a total harmonic distortion (THD) of 2.2%, simulation results verify steady operation at 10 kW, satisfying International Electrotechnical Commission (IEC) requirements. The recommended design works faithfully and is proper for small-scale industrial and residential applications
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