International Journal of Renewable Energy Research-IJRER
A Novel Adaptive Topology for Photovoltaic Array under Partial shadings to Increase Energy Yields
Abstract
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Abstract- This paper proposed a new adaptive reconfiguration technique for total cross-tied (TCT) PV array to reduce the loss of mismatch and to increase energy output under partial shadings (PS) through MATLAB-SIMULINK. During this work, the electrical connections between PV modules are modified with the help of proposed pattern search algorithm to maintain equal currents in each row on the basis of shading conditions, thus increasing the current of the array. The proposed algorithm classifies the possible number of PV array connections for adaptive system and determines the optimal connection between them. This approach is implemented on a 3×3 array and evaluated under various possible conditions of shadings. In contrast, this proposed method is validated with current reconfiguration methods and compares the global maximum power point (GMPP), shadow loss, and fill factor. Based on the findings of this study, it is acknowledged that the proposed adaptive method strengthened the TCT array energy yield compared to other methods under partial shadings.
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DOI (PDF): https://doi.org/10.20508/ijrer.v10i3.11023.g7987
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Online ISSN: 1309-0127
Publisher: Gazi University
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