Design and Analysis

The rapid change in global energy demands and the environmental problems caused by fossil fuels have resulted in the need of solar energy which becomes a potential solution and one among the most popular renewable energy sources. Solar power is also utilized in areas where standard power supply is not available. But, due to the variations in the climatic conditions, tracking of Maximum Power Point (MPP) is difficult. The PV modules always supply a maximum power as possible as dictated by surrounding operating conditions and to make sure that a particular circuit identified as Maximum Power Point Tracker (MPPT) is engaged. Hence, to improve the efficiency of the PV energy system, it is required to follow the MPP of the solar array. A DC-DC converter is used as an MPPT in most of the applications which is controlled through a scheme that imposing the operation point of PV module on the MPP or nearer to it. The modern development in solar power system is to spotlight on the PV battery powered backup system in order to satisfy the essential load demand.