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MAXIMUM POWER POINT TRACKING USING SLIDING MODE CONTROL FOR PHOTOVOLTAIC ARRAY

In this paper, a robust Maximum Power Point Tracking (MPPT) for PV array has been proposed using sliding mode control by defining a new formulation for sliding surface which is based on increment conductance (INC) method. The stability and robustness of the proposed controller are investigated to load variations and environment changes. Three different types of DC-DC converter are used in Maximum Power Point (MPP) system and the results obtained are given. The simulation results confirm the effectiveness of the proposed method in the presence of load variations and environment changes for different types of DC-DC converter topologies. In addition, a Model Predictive Control (MPC) is adopted from the literature to show the effectiveness of the proposed controller.