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An Improvement of Incremental Conductance MPPT Algorithm for PV Systems Based on the Nelder-Mead Optimization

In this paper a maximum power point tracking (MPPT) solution for photovoltaic systems (PV) based on the Nelder-Mead (NM) optimization algorithm is presented. A well known maximum power point condition from incremental conductance (IC) algorithm is used along with the Nelder-Mead algorithm responsible for tracking maximum power point (MPP) on the PV system power curve. The presented control algorithm is able to track global maximum of the power curve under uniform insolation conditions, and more importantly under partial shading conditions with great accuracy and robustness, which was demonstrated with various test simulations in Matlab/Simulink.

maximum power point tracking; photovoltaic systems; Nelder--Mead; partial shading; uniform insolation; optimization; incremental conductance

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