Among all MPPT methods, Perturb and Observe (P&O) method and Incremental Conductance method are the most used MPPT algorithms. A number of algorithms are developed to track the maximum power point efficiently. The solar efficiency is increased by tracking its MPP and using MPPT algorithm this can be achieved. WithĪll its advantages solar is gaining more attention. The solar has advantages like less operational and maintenance cost, bulk availability and ecofriendliness. Thus the growing demand on electricity, the limited stock and rising prices of conventional sources such as coal, petroleum etc has led to the use of re- newable energy sources. So focus is increased towards the utilisation of renewable energy. Ne of the major problems in the power sector is unbal- ance in supply and demand due to the depletion of con- ventional energy resources.Usage of fossil fuels causes serious environmental pollution. Index Terms - Cuk converter, Incremental Conductance (IC), Irradiation, Maximum Power Point Tracker (MPPT), Photovoltaic array (PVĪrray), Perturb & Observe (P&O), Photovoltaic array, Temperature. A general model of Photovoltaic system with proposed MPPT controller and Cuk converter is implemented on Matlab and a comparision between proposed P&O and Incremental Conductance MPPT techniques under constant and variable irradiation levels is done, which proves that Incremental Conductance MPPT algorithm is robust and efficient for changing irradiation conditions and P&O is simple and efficient tech- nique for constant irradiation condition. In this paper we focuses on improving Perturb and Observe (P&O) and Incremental Conductance method of MPPT techniques by eliminating its drawbacks like oscillations at maxi- mum power point, complexity. The output of Photovoltaic array is depends on temperature and irradiation levels so it is difficult to track MPP.Maximum Power Point Tracker (MPPT) is an algorithmic technique that tracks MPP and force the PV array to operate at its maximum power point. The efficiency of Photovoltaic array will be maximum if it is operated at maximum power point (MPP). Ramyaka Sammangi, Raghunadha Sastry R, Sambasiva Rao NĪbstract - solar energy is most useful for sustainable development. SIMULINK Model of PV array with MPPT using
International Journal of Scientific & Engineering Research, Volume 6, Issue 4, April-2015 1692
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