Simulation analysis of DC motor based solar water pumping system for agriculture applications in Rural areas

Solar photovoltaic (PV) generators for agriculture purposes offer a practical 
alternative over traditional electric and diesel-based water pumps due to their 
low cost, sustainable and eco-friendly nature. These systems are suitable for 
remote locations in case of unreachable power grid. However, the operation 
of these generators is affected by various factor such weather status This 
article proposes a photovoltaic water pumping system (PVWPS) to drive a 
centrifugal pump using a permanent magnet DC motor (PMDC). 
Additionally, a boost converter for extracting the maximum power from PV 
panels was used in the system and an Incremental conductance (IC) algorithm 
was chosen in the controller circuit. The system was implemented and 
investigated using MATLAB/Simulink at various irradiance values (i.e., 400, 
600, 800 and 1000) w/m2
. The results indicate that the efficiency of the 
proposed system is higher than 90% at all selected irradiance values proven 
that the integration of PV array with water pumping system without any 
energy storage devices is applicable at a daytime.