Abstract
Photovoltaic (PV) water pumping constitute an innovative solution for sustainable irrigated agricultural. The present study treats technical case related to actual use and performance of PV pumping systems for drip irrigation in Morocco. A management method was proposed to optimally operate PV pumping system and synchronize hydraulic performance to variable daily irradiance. The study showed that use of pumps in parallel improved efficiencies and enlarged daily operating time of the pumping system using only the same installed photovoltaic generator power. The result showed that it is possible to design more economical PV systems as the maximum peak power demand for each month can be satisfied using small power pumps in parallel and adjusting their switch with accordance to varying daily irradiance. This management method optimized the PV hydraulic pumping capacity by up to 20% and help farmers to avoid use of complementary diesel power for satisfying their irrigation.
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