3-Φ Grid Connected PV Inverter with Active and Reactive Power Control
DOI:
https://doi.org/10.46610/JEPSE.2026.v012i01.005Keywords:
Active and reactive power control, DQ controller, Grid connected single-phase PV inverter, PLL, THDAbstract
Photovoltaic (PV) solar panels and other forms of renewable energy are quickly becoming an integral part of the power grid as an approach to mitigate climate change and satisfy rising energy demands. This research represents how to build and execute a grid-connected PV inverter with single-stage and three-phase active and reactive power control. A dq0 controller-based control approach is suggested. The innovative dq controller method simplifies the regulation of grid-supplied active and reactive power by converting three-phase voltages and currents into a rotating reference current (Iref), therefore reducing transient harmonic distortion (THD) in the inverter's output power. To facilitate the transfer of actual PV electricity to the grid, a MATLAB Simulink simulation has been executed. The proposed control system demonstrated effective performance, achieving a THD of 2.48% in the output voltage. Waveforms from the simulation, including three-phase output voltages, currents, and system phase angles, are presented to verify the effectiveness of the control system. The system becomes more efficient by lowering hardware complexity and conversion losses with a single-stage topology. Hence, the proposed method can be much more effective if this system is implemented using an advanced controller strategy for several multi-level grid-connected inverters to reduce THD and improve the inverter outputs for further work.
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