A novel electrical and mechanical MPPT for Solar Photovoltaic System at any climatic condition and sudden changes in the irradiance
Keywords:MPPT, reflector based panel, modified panel, electrical with mechanical MPPT, novel MPPT
Maximum power point tracking (MPPT) techniques are widely used in photovoltaic (PV) systems to make the best use of the PV panel power output by tracking frequently the maximum power point (MPP) which depends on panelâ€™s temperature and on irradiant environmental conditions. The various hitches of MPPT have been addressed in different ways. But eventually towards economical implementation, the perturb and observe (P&O) maximum power point tracking algorithm is the most widely adapted method due to its ease of implementation. A drawback of P&O is that, at steady state, the operating point oscillates around the MPP giving rise to the waste of some amount of available energy; moreover, it is well known that the P&O algorithm can be confused to attain the MPP during the distinctly changing atmospheric conditions. In this paper, it is shown that, in order to extensively reduce the negative effects associated to the above drawbacks, a novel MPPT can be adopted with the use of LDR. In the same manner use of modified cylindrical panel with reflector can increase the working hours of the panel like a mechanical tracking.
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