Small signal model of PV power generation system

A small signal model is developed and integrated with perturb & observes (P&O) algorithm to extract the maximum power from photovoltaic (PV) system under rapid climate changes as well as partial shading condition. Boost converter is employed to track the maximum power from PV system and feed to dc-loads. Rapid weather changes are considered for case studies. MATLAB results are presented to validate the performance of the syatem. Small signal analysis is reported in this paper for better analysis. The loop robustness of the design are also studied. For a given set of system parameters, simulations for the small signal model and robustness studies are also carried out to verify the results.