Performances of photovoltaic water pumping systems: a case study
by M. Benghanem
International Journal of Renewable Energy Technology (IJRET), Vol. 1, No. 2, 2009

Abstract: This paper presents a mathematical motor-pump model for photovoltaic (PV) applications which allow us to contribute in the studies of PV pumping sizing. The modelled motor-pump characteristic is flow rate-power (Q, P). The model is established for centrifugal pump (CP) coupled to DC motor. The non-linear relation between flow rate and solar power has been obtained experimentally in a first step and then used for performance prediction. The model proposed enabled us to simulate the electric and hydraulic performances of CP pumps versus the total water heads for different PV array configuration. The experimental data are obtained with our pumping test facility. The performances are calculated using the measured meteorological data of different sites located in Saudi Arabia. The size of the PV array is varied to achieve the optimum performance of the proposed system.

Online publication date: Wed, 26-Aug-2009

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