2010 · 35 citations · 14 references
EngineeringElectrical EngineeringPower ElectronicsRenewable Energy IntegrationRenewable Energy SystemsPower Electronics For Renewable EnergyRenewable Energy Power ConversionSolar CellsSolar Energy SystemsSolar Photovoltaic SystemsSolar ShadingMaximum Power OutputMaximum Power Point TrackingMaximum Power Point Tracking AlgorithmsPartial Shading MitigationPhotovoltaic System SimulationPhotovoltaic SystemsShadingSolar Photovoltaic Power Systems
Detailed theoretical analyses are presented to show the influence of partial shading on v-i and p-i characteristics of solar modules and to compare the accuracies of two simple, fast and reliable maximum power-point tracking (MPPT) techniques for photovoltaic (PV) systems: the voltage-based (VMPPT) and the current-based (CMPPT) approaches. Simulations are presented to highlight impacts of partial shading on MPPT of individual and series connected solar cells without and with the bypass diodes. A modified CMPPT approach is proposed to integrate partial shading. Results show considerable increase of captured maximum power compared with the conventional CMPPT, VMPPT and P&O tracking methods.
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