Design and simulation of sun tracker with MPPT

Abstract

Solar electricity is seen as being a significant source of renewable energy.The photovoltaic generator is a source characterized by only one point of operation where the generated power is maximum called maximum power point(MPP). Unfortunately that point moves according to the weather conditions (temperature and rradiance) and needs a controller to track it. Many MPPT techniques were proposed such as perturb and observe (P&O), Incremental conductance (InC), the fractional open circuit voltage (FOCV) ,fractional short circuit current (FSCC). This work presents an improved sun tracker controller for PV systems. An mproved P&O algorithm using a microcontroller to achieve this objective. The developed MPPT uses the Sun tracker to extract the maximum power. The simulation results show that the response of the proposed design is faster than the P&O algorithm without sun tracke.

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