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Revised Perturb and Observe Approach For Maximum Power Point Tracking Of Photovoltaic Module Using Finite Control Set Model Predictive Control

This paper presents the advanced approach for maximum power point tracking (MPPT) of the photovoltaic (PV) module through a restricted control set model predictive control (RCS-MPC). The proposed control scheme is based on the revised perturb and observe (P&O) algorithm linked with RCS-MPC with a single step prediction horizon. The proposed control scheme provides high speed tracking of maximum power point (MPP) under rapid change in environmental conditions. The simulation results reveal that the the undershoot in the PV power and inductor current has been reduced to 14%. Moreover, the settling time required to reach steady state condition is 1ms compared to 40ms for the conventional system. The proposed methodology also reduces the oscillations generated in the inductor current when compared to the conventional method. Due to the single step prediction set used in the recommended system and low computational load the performance has significantly improved. The feasibility of the recommended approach is affirmed by MATLAB/Simulink.