An overview of some modifications proposed in Perturbation & Observation Maximum power point Tracking
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 4
Abstract
Solar energy is one of the most important form of renewable energy in the present time because of rapid depletion of non renewable sources of energy. Solar energy is clean, safe and abundant in nature. Photo voltaic or PV technology is used to harness solar energy. Solar energy in form of sun rays are collected via solar or PV panels. The PV panels/arrays have high initial cost and less efficiency. Now in order to maximize the power output and thus justify the high initial cost, there is a need of optimization algorithm which can be called as maximum power point tracking (MPPT). MPPT is an efficient technique used these days to optimize the performance of a PV panel so that maximum power can be drawn from the panel. There are many MPPTs which have been developed all these years. Of which perturbation & observation (P&O) method is most popular because of its simplicity, easy implementation, robustness. It is efficient but suffers with trade off problem of oscillations which are to be minimized. In this paper, different modifications in P&O technique for reducing the trade off problem are discussed which are proposed earlier and a comparative analysis is being done. Also the technique also has significant effect of irradiance and temperature on its performance. Paper also discussess the modifications which reduce the dependence of P&O algorithm on the irradiance and temperature also.
Authors and Affiliations
Sameeksha Tripathi, A. N. Tiwari
Keywords
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