As the consumption of fossil fuel and the incidental trouble induced by the expected power generation like gasoline, charcoal, and etc., alternative energy sources and between these sources photovoltaic panels and wind-generators are now broadly used. One of the most favorable alternative energy is photovoltaic (PV) energy it is pure, limitless and free from harvesting. Though, two main defects of PV system are the high investing cost and the low regeneration of PV modules efficiency. In this paper work, PV system is analyzed with different maximum power point controlling techniques i.e. Perturb and Observe, Incremental Conductance & Fuzzy Logic Control, to study various parameters like settling time, oscillation around maximum power point tracking and selection criteria of dc-dc converter. The selection criteria of dc-dc converter is important because dc-dc converter decides tracking and non-tracking region.