Optimal control of a grid-connected PV system for maximum power point tracking and unity power factor

The paper discusses a model-based method to predict the maximum power point (MPP) of a PV array using the measured data of radiation and temperature. The proposed method can be embedded in a synchronous rotating reference frame (SRRF) current regulator. This ensures good performance voltage control and unity power factor current supply to the grid. A simulation study of the proposed control scheme has been carried out, and the results are presented in the paper