article
A nonlinear sliding mode control (SMC) strategy is proposed in this paper for a three-phase, single-stage, grid-tied photovoltaic (PV) system. The controlled system consists of a photovoltaic generator (PVG), a three-phase voltage source inverter, a grid filter, and a balanced three-phase electrical grid. The controller seeks to accomplish three key objectives: (1) maximize power extraction from the PVG; (2) sustain a unity power factor on the grid side; and (3) guarantee the asymptotic stability of the closed-loop system. A sliding mode control technique is applied to the nonlinear system model formulated in the d-q synchronous reference frame. Theoretical stability analysis and simulation outcomes provide strong validation that the proposed control strategy effectively fulfills all predefined objectives.
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DOI: 10.1109/iraset64571.2025.11007948
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