Dear Dhiaa,
I think that the following publications are relevant to your project entitled "Optimal modeling and sizing of photovoltaic water pumping system". It will be excellent if we can find possible joint collaboration.
Article IRRIGATION WATER PUMPING (IWP) SYSTEMS - COMPARISON BETWEEN ...
https://www.researchgate.net/publication/239792384_Sizing_optimisation_of_stand-alone_photovoltaic_generators_for_irrigation_water_pumping_systems
Conference Paper TECHNO-ECONOMIC EVALUATION AND SIZING OPTIMIZATION OF SOLAR-...
Deleted research item The research item mentioned here has been deleted
Best regards,
M. EL-Shimy