An Investigation of Perturb and Observe Based MPPT Algorithm for PV System

T Nishanth, V Nirmala Devi


Renewable energy is one of the most available and exploitable forms of energy of the various renewable energy sources photovoltaic energy has emerged as the most viable source of electric power and is economically competitive with conventional sources. With the increasing demand on electricity and rising prices of conventional sources, photovoltaic energy is a promising alternative; it is freely available and less operational and requires low maintenance.   Maximum power point tracking techniques (MPPT) are used in photo voltaic (PV) systems to maximize the PV array output power by tracking continuously. Among all the different techniques Perturb and Observe (P&O) technique is most extensively used in commercial MPPT systems because it is straight forward and low cost to implement.

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