Control criteria for efficiency improvement of dual PV pumping systems
No Thumbnail Available
Date
2021
Authors
Alsheakh, Khalid
Hamdan, Ahmad
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
This project describes how water can be pumped from medium depths
Using solar pumps, choosing the appropriate pump based to several
Special factors like solar radiation, required flow, and the total head.
Moreover, how to choose the required PV rated capacity.
The ability of the pumps to pump water varies according to the strength
of the incoming solar radiation, which is effected by time and place, and
since the water will be used for irrigation, we need it much more in
summer than in winter, that is, when solar energy is at its peak.
The case study includes the evaluation of choosing two small parallel
pumps instead of using one large pump in order to increase the efficiency
and extend the pumping period, as sometimes only one pump works and
at noon the two pumps work together, and the control unit will regulate
the work of the pumps according to solar radiation. The comparison was
made between the two scenarios. The first with two small pumps with
power of 3 kW and 4 kW both supplied by a PV array of 8.7 kW . The
second with only one pump of 13 kW supplied by a PV array of 17 kW. The simulation results which carried by PVsyst software show that the
effectiveness of the first scenario when operates based on proposed control strategy.