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Open Access New Accurate Model to Estimate Maximum Power of Photovoltaic Modules and Arrays

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Quantitative information regarding the maximum power point (MPP) of photovoltaic (PV) arrays is crucial for determining and controlling their operation. Accurate knowledge of the MPP for PV arrays is essential for the design and operation of grid-connected PV power systems under varied atmospheric conditions. The usual methods for tracking the MPP of PV arrays suffer from a serious problem that the MPP cannot be quickly acquired. Therefore, a simple and effective mathematical model to obtain the MP output in real time under all possible system conditions is indispensable to the development of a feasible PV generation system. We developed a new prediction model for directly estimating MPP for power tracking in PV arrays. The proposed model is a simple approach that takes the effect of solar cell resistances into consideration. The performance of the proposed model was evaluated at various temperatures and irradiation intensities.

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Keywords: PV module; modeling maximum power; modeling maximum power point; single diode model

Document Type: Research Article

Publication date: 01 May 2014

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