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A new Maximum Power Point Tracking (MPPT) algorithm, based on the well known Perturb and Observe (P&O) method is presented. The proposed algorithm includes some refinements, as a three point comparison, variable duty-cycle increment and a timed reset of working parameters, allowing a more efficient control of a stand-alone photovoltaic system. The experimental results show the good response and robustness of the algorithm.
Date of Conference: 26-28 April 2010