Predictive Control for MPPT in a Photovoltaic System without DC/DC stage

Predictive control has emerged as an alternative for the control of power converters for photovoltaic applications. In this work, a predictive control scheme is proposed to obtain the maximum power point in a photovoltaic array coupled directly to a grid-connected DC/AC power converter. The architecture considered avoids the use of the DC/DC stage, reducing the losses related to this component. The introduced control strategy is proved by simulations in Matlab&Simulink, demonstrating flexibility to include the non-linear behaviour of the system and good performance in terms of DC voltage and AC current, respectively.