A P&O Based Variable Step Size MPPT Algorithm for Photovoltaic Applications

Maximum power point tracking (MPPT) is an indispensable component of the Photovoltaic (PV) systems to maximize efficiency. Perturb and observe (P&O) one prevalent MPPT methods owing its easier structure for implementation but it suffers from problems slow oscillations around MPP. In this paper, a modified variable step size algorithm based on P&O method proposed obtain maximum output PV system coupled with boost DC-DC converter. The employs scaled difference as control enable variation each cycle. Results obtained by simulation experimental work verified that potent mitigating related classical method.