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Maximum Power Point Tracking Dual Integral Sliding Mode Control for a Pumping System

The solar panel exhibits non-linear behavior under real climatic conditions and the output power fluctuates with the variation of solar irradiance and temperature. Therefore, a control strategy is needed to extract the maximum power from the solar panels under all operating conditions. The objective of this work is to classify, review the maximum power point tracking techniques used to extract maximum power from photovoltaic systems in off-grid applications. Namely an integrated dual sliding mode controller to improve the performances of maximum power point tracking and stabilize the power output of the solar system. The presented Dual Integral Sliding Mode Control maximum power point tracking method is robust, provides faster and stable maximum tracking power compared to other discussed methods and also performs well during any change in weather conditions. To validate the efficiency, mathematical modeling of all above mentioned MPPT nonlinear controller methods and their simulations are performed on Matlab/SIMULINK.