Photovoltaic Water Pumping: Comparison Between Direct and Lithium Battery Solutions

This work presents the conversion of a photovoltaic water pumping system (PVWPS) to its corresponding battery-based solution, while maintaining the components of the PVWPS facility and adding the power converter needed to manage the operation of a lithium-ion battery. A complete analysis of the dire...

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Bibliographic Details
Published in:	IEEE access 2021, Vol.9, p.101147-101163
Main Authors:	Orts-Grau, S., Gonzalez-Altozano, P., Gimeno-Sales, Francisco J., Balbastre-Peralta, I., Marquez, C. I. Martinez, Gasque, M., Segui-Chilet, S.
Format:	Article
Language:	eng
Subjects:	Batteries battery-based pumping Irradiance Irrigation Lead acid batteries Lithium Lithium batteries Lithium-ion batteries Photovoltaic systems Photovoltaic water pumping systems Power converters Pumping Rechargeable batteries stand-alone photovoltaic system Supercapacitors sustainable development goals Water pollution water pumping Water resources
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Summary:	This work presents the conversion of a photovoltaic water pumping system (PVWPS) to its corresponding battery-based solution, while maintaining the components of the PVWPS facility and adding the power converter needed to manage the operation of a lithium-ion battery. A complete analysis of the direct PVWPS is performed based on the values obtained by the monitoring system developed for the installation. The efficiencies and performance ratios of the various elements of the facility are calculated, as well as other relevant factors (such as irradiance thresholds). The dependence of some variables on the solar resource is analyzed to model the system. A similar study is carried out in the battery-based solution and a comparative analysis of the two modes of operation is then performed to find which aspects could be improved in the battery-based solution to increase the pumping time and total daily pumped volume. The results presented demonstrate the benefits of including a battery (reduction in start/stop cycles and improved performance on cloudy days). Aspects that can be improved to make the battery-based solution more efficient and achieve better results are suggested.
ISSN:	2169-3536 2169-3536