Off-Grid Portable Photovoltaic System Operating at Low Power Conditions

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Provided by: IRD India
Topic: Hardware
Format: PDF
A new approach to portable photo-voltaic systems which described in this paper is of very low power 5W and main purpose is for recharging or powering small portable electronics devices. The objects of this paper are: the optimization of photo-voltaic cells connection with regard to portable conditions; a non-standard topology is adopted, to compensate shadowing or non-optimal orientation; the introduction of a topology for battery and DC/DC converter, in which the battery voltage is optimized for photo-voltaic operation and a buck-boost converter can provide any voltage to the load.
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