Modeling and analysis of MPPT based solar PV system under dynamic weather conditions

A solar photovoltaic system (PV) generate electricity through photo-electric effect through photo cell. In practice, the output from a solar cell is quite low and so required number of solar cells are arranged properly in series-parallel combination to obtain significant output forming a module. In present analysis performance of a PV system having resistive load was analyzed under dynamic weather condition. A power electronic interface is embedded in the system to achieve maximum power point tracking (MPPT). A controller is incorporated in the system to regulate the duty ratio of the power electronic interface. In present study, two different algorithms were applied in the controller namely: Hill Climbing algorithm and Incremental Conductance. A comparative analysis of the system was carried out with the controller actuated by the above-mentioned logics simultaneously. Although both the method provided satisfactory results, INC method provided better system response.